/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-programs/partial_mod_count_2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 10:24:31,098 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 10:24:31,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 10:24:31,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 10:24:31,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 10:24:31,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 10:24:31,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 10:24:31,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 10:24:31,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 10:24:31,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 10:24:31,163 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 10:24:31,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 10:24:31,165 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 10:24:31,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 10:24:31,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 10:24:31,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 10:24:31,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 10:24:31,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 10:24:31,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 10:24:31,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 10:24:31,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 10:24:31,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 10:24:31,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 10:24:31,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 10:24:31,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 10:24:31,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 10:24:31,206 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 10:24:31,207 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 10:24:31,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 10:24:31,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 10:24:31,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 10:24:31,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 10:24:31,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 10:24:31,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 10:24:31,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 10:24:31,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 10:24:31,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 10:24:31,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 10:24:31,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 10:24:31,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 10:24:31,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 10:24:31,220 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 [2020-10-12 10:24:31,270 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 10:24:31,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 10:24:31,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 10:24:31,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 10:24:31,274 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 10:24:31,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 10:24:31,275 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 10:24:31,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 10:24:31,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 10:24:31,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 10:24:31,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 10:24:31,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 10:24:31,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 10:24:31,277 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 10:24:31,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 10:24:31,278 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 10:24:31,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 10:24:31,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 10:24:31,278 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 10:24:31,278 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 10:24:31,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 10:24:31,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 10:24:31,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 10:24:31,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 10:24:31,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 10:24:31,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 10:24:31,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 10:24:31,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 10:24:31,280 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 10:24:31,280 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 10:24:31,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 10:24:31,678 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 10:24:31,682 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 10:24:31,683 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 10:24:31,684 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 10:24:31,685 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-programs/partial_mod_count_2.c [2020-10-12 10:24:31,754 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/79aac45c3/61bd3b53684f4a6889c13170405c6b01/FLAG5576f320a [2020-10-12 10:24:32,278 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 10:24:32,279 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-programs/partial_mod_count_2.c [2020-10-12 10:24:32,286 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/79aac45c3/61bd3b53684f4a6889c13170405c6b01/FLAG5576f320a [2020-10-12 10:24:32,646 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/79aac45c3/61bd3b53684f4a6889c13170405c6b01 [2020-10-12 10:24:32,657 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 10:24:32,659 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 10:24:32,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 10:24:32,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 10:24:32,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 10:24:32,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:24:32" (1/1) ... [2020-10-12 10:24:32,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24f7f4d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:32, skipping insertion in model container [2020-10-12 10:24:32,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:24:32" (1/1) ... [2020-10-12 10:24:32,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 10:24:32,699 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 10:24:32,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:24:32,908 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 10:24:32,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:24:32,953 INFO L208 MainTranslator]: Completed translation [2020-10-12 10:24:32,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:32 WrapperNode [2020-10-12 10:24:32,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 10:24:32,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 10:24:32,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 10:24:32,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 10:24:33,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:32" (1/1) ... [2020-10-12 10:24:33,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:32" (1/1) ... [2020-10-12 10:24:33,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:32" (1/1) ... [2020-10-12 10:24:33,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:32" (1/1) ... [2020-10-12 10:24:33,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:32" (1/1) ... [2020-10-12 10:24:33,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:32" (1/1) ... [2020-10-12 10:24:33,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:32" (1/1) ... [2020-10-12 10:24:33,088 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 10:24:33,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 10:24:33,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 10:24:33,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 10:24:33,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:32" (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 [2020-10-12 10:24:33,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 10:24:33,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 10:24:33,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-12 10:24:33,155 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 10:24:33,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 10:24:33,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-12 10:24:33,155 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 10:24:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 10:24:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 10:24:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 10:24:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 10:24:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 10:24:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 10:24:33,445 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 10:24:33,446 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-12 10:24:33,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:24:33 BoogieIcfgContainer [2020-10-12 10:24:33,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 10:24:33,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 10:24:33,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 10:24:33,468 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 10:24:33,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:24:32" (1/3) ... [2020-10-12 10:24:33,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13279460 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:24:33, skipping insertion in model container [2020-10-12 10:24:33,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:32" (2/3) ... [2020-10-12 10:24:33,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13279460 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:24:33, skipping insertion in model container [2020-10-12 10:24:33,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:24:33" (3/3) ... [2020-10-12 10:24:33,475 INFO L109 eAbstractionObserver]: Analyzing ICFG partial_mod_count_2.c [2020-10-12 10:24:33,487 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 10:24:33,494 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 10:24:33,509 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 10:24:33,530 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 10:24:33,531 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 10:24:33,531 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 10:24:33,531 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 10:24:33,531 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 10:24:33,531 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 10:24:33,532 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 10:24:33,532 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 10:24:33,549 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-10-12 10:24:33,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-12 10:24:33,556 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:24:33,557 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:24:33,558 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:24:33,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:24:33,563 INFO L82 PathProgramCache]: Analyzing trace with hash 547567586, now seen corresponding path program 1 times [2020-10-12 10:24:33,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:24:33,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [159848846] [2020-10-12 10:24:33,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:24:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:33,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:33,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:34,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:34,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 10:24:34,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:24:34,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 400 [2020-10-12 10:24:34,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:34,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 10:24:34,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 10:24:34,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 10:24:34,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 10:24:34,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:24:34,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:34,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:34,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:34,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:24:34,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:34,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 10:24:34,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:34,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:24:34,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:34,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 10:24:34,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:24:34,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 10:24:34,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [159848846] [2020-10-12 10:24:34,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:24:34,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 10:24:34,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148545986] [2020-10-12 10:24:34,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 10:24:34,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:24:34,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 10:24:34,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-12 10:24:34,438 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 8 states. [2020-10-12 10:24:34,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:24:34,819 INFO L93 Difference]: Finished difference Result 59 states and 79 transitions. [2020-10-12 10:24:34,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 10:24:34,822 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-10-12 10:24:34,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:24:34,831 INFO L225 Difference]: With dead ends: 59 [2020-10-12 10:24:34,832 INFO L226 Difference]: Without dead ends: 32 [2020-10-12 10:24:34,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-12 10:24:34,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-12 10:24:34,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-12 10:24:34,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-12 10:24:34,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2020-10-12 10:24:34,889 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 14 [2020-10-12 10:24:34,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:24:34,889 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2020-10-12 10:24:34,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 10:24:34,890 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2020-10-12 10:24:34,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-12 10:24:34,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:24:34,892 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:24:34,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 10:24:34,893 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:24:34,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:24:34,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1588214163, now seen corresponding path program 1 times [2020-10-12 10:24:34,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:24:34,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [912419165] [2020-10-12 10:24:34,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:24:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:34,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:34,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:34,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:35,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:35,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:35,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:35,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 10:24:35,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 10:24:35,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 819 [2020-10-12 10:24:35,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:35,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 10:24:35,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 10:24:35,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 10:24:35,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:35,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:24:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:35,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:35,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:35,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:24:35,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:35,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 10:24:35,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:35,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:24:35,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:35,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 10:24:35,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:35,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 10:24:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:35,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:35,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:35,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:24:35,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:35,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 10:24:35,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:35,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:24:35,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:35,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:24:35,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-10-12 10:24:35,935 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 10:24:35,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [912419165] [2020-10-12 10:24:35,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:24:35,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 10:24:35,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814249170] [2020-10-12 10:24:35,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 10:24:35,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:24:35,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 10:24:35,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-12 10:24:35,949 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 9 states. [2020-10-12 10:24:36,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:24:36,306 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2020-10-12 10:24:36,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 10:24:36,307 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-12 10:24:36,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:24:36,309 INFO L225 Difference]: With dead ends: 42 [2020-10-12 10:24:36,309 INFO L226 Difference]: Without dead ends: 40 [2020-10-12 10:24:36,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2020-10-12 10:24:36,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-12 10:24:36,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-12 10:24:36,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-12 10:24:36,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2020-10-12 10:24:36,338 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 22 [2020-10-12 10:24:36,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:24:36,341 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2020-10-12 10:24:36,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 10:24:36,341 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2020-10-12 10:24:36,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-12 10:24:36,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:24:36,347 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:24:36,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 10:24:36,348 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:24:36,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:24:36,349 INFO L82 PathProgramCache]: Analyzing trace with hash 2013733517, now seen corresponding path program 2 times [2020-10-12 10:24:36,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:24:36,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1908923021] [2020-10-12 10:24:36,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:24:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:36,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:36,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:36,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:36,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:36,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:36,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:38,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:39,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:39,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 10:24:39,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 10:24:39,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3616 [2020-10-12 10:24:39,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:39,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 10:24:39,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 10:24:39,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 10:24:39,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:40,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:24:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:40,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:40,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:40,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:24:40,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:40,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:24:40,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:40,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:24:40,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:40,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 10:24:40,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:24:40,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 10:24:40,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:40,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:40,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:40,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:24:40,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:40,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 10:24:40,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:40,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:24:40,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:40,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:24:40,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:24:40,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 10:24:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:40,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:40,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:40,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:24:40,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:40,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 10:24:40,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:40,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:24:40,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:40,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:24:40,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:24:40,133 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 10:24:40,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1908923021] [2020-10-12 10:24:40,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:24:40,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 10:24:40,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573789843] [2020-10-12 10:24:40,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 10:24:40,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:24:40,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 10:24:40,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 10:24:40,138 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand 10 states. [2020-10-12 10:24:40,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:24:40,525 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-10-12 10:24:40,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 10:24:40,526 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2020-10-12 10:24:40,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:24:40,527 INFO L225 Difference]: With dead ends: 50 [2020-10-12 10:24:40,528 INFO L226 Difference]: Without dead ends: 48 [2020-10-12 10:24:40,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2020-10-12 10:24:40,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-12 10:24:40,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-12 10:24:40,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-12 10:24:40,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2020-10-12 10:24:40,553 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 30 [2020-10-12 10:24:40,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:24:40,554 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2020-10-12 10:24:40,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 10:24:40,556 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2020-10-12 10:24:40,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-12 10:24:40,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:24:40,558 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:24:40,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 10:24:40,559 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:24:40,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:24:40,559 INFO L82 PathProgramCache]: Analyzing trace with hash 774528685, now seen corresponding path program 3 times [2020-10-12 10:24:40,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:24:40,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [939916943] [2020-10-12 10:24:40,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:24:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:40,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:40,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:40,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:40,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:40,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:40,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:40,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:44,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:45,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:45,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 10:24:45,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 10:24:45,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 10:24:45,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:45,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 10:24:45,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:24:45,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 10:24:45,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:24:45,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:24:45,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:45,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:45,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:45,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:24:45,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:45,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 10:24:45,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:45,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:24:45,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:45,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:24:45,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:45,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 10:24:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:45,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:45,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:45,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:45,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:24:45,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:24:45,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 10:24:45,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:45,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:24:45,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:24:45,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:24:45,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:45,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 10:24:45,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:45,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:45,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:45,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:45,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:24:45,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:24:45,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 10:24:45,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:45,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:24:45,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:24:45,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:24:45,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:45,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-12 10:24:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:45,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:45,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:45,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:24:45,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:45,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 10:24:45,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:45,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:24:45,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:24:45,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:24:45,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:45,971 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-12 10:24:45,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [939916943] [2020-10-12 10:24:45,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:24:45,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 10:24:45,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640943372] [2020-10-12 10:24:45,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 10:24:45,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:24:45,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 10:24:45,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-12 10:24:45,977 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand 10 states. [2020-10-12 10:24:46,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:24:46,223 INFO L93 Difference]: Finished difference Result 98 states and 119 transitions. [2020-10-12 10:24:46,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 10:24:46,224 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 38 [2020-10-12 10:24:46,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:24:46,225 INFO L225 Difference]: With dead ends: 98 [2020-10-12 10:24:46,225 INFO L226 Difference]: Without dead ends: 51 [2020-10-12 10:24:46,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 10:24:46,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-12 10:24:46,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2020-10-12 10:24:46,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-12 10:24:46,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2020-10-12 10:24:46,238 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 38 [2020-10-12 10:24:46,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:24:46,239 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2020-10-12 10:24:46,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 10:24:46,239 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2020-10-12 10:24:46,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-12 10:24:46,241 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:24:46,241 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:24:46,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 10:24:46,241 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:24:46,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:24:46,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1124481880, now seen corresponding path program 1 times [2020-10-12 10:24:46,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:24:46,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2097633026] [2020-10-12 10:24:46,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:24:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:46,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:46,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:46,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:46,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:46,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:46,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:46,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:46,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:47,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:48,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:48,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:48,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:51,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:51,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-12 10:24:51,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-12 10:24:51,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 10:24:51,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:51,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 10:24:51,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:24:51,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 10:24:51,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-12 10:24:51,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:24:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:51,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:51,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:51,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:24:51,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:51,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 10:24:51,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:51,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:24:51,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:51,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:24:51,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:51,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 10:24:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:51,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:51,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:51,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:51,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:24:51,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:24:51,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 10:24:51,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:51,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:24:51,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:24:51,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:24:51,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:51,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:24:51,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:51,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:51,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:51,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:51,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:24:51,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:24:51,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 10:24:51,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:51,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:24:51,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:24:51,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:24:51,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:51,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-12 10:24:51,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:51,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:51,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:51,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:24:51,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:51,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 10:24:51,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:51,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:24:51,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:24:51,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:24:51,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:51,566 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 23 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-12 10:24:51,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2097633026] [2020-10-12 10:24:51,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:24:51,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 10:24:51,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914013072] [2020-10-12 10:24:51,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 10:24:51,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:24:51,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 10:24:51,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-12 10:24:51,573 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand 11 states. [2020-10-12 10:24:51,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:24:51,903 INFO L93 Difference]: Finished difference Result 103 states and 125 transitions. [2020-10-12 10:24:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 10:24:51,906 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 41 [2020-10-12 10:24:51,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:24:51,908 INFO L225 Difference]: With dead ends: 103 [2020-10-12 10:24:51,908 INFO L226 Difference]: Without dead ends: 54 [2020-10-12 10:24:51,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2020-10-12 10:24:51,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-12 10:24:51,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2020-10-12 10:24:51,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-12 10:24:51,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 61 transitions. [2020-10-12 10:24:51,935 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 61 transitions. Word has length 41 [2020-10-12 10:24:51,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:24:51,935 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 61 transitions. [2020-10-12 10:24:51,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 10:24:51,936 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 61 transitions. [2020-10-12 10:24:51,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-12 10:24:51,938 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:24:51,938 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:24:51,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 10:24:51,939 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:24:51,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:24:51,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1239000883, now seen corresponding path program 2 times [2020-10-12 10:24:51,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:24:51,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1759353551] [2020-10-12 10:24:51,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:24:51,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:51,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:51,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:52,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:52,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:52,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:52,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:52,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:52,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:56,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:56,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 10:24:56,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 10:24:56,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 10:24:56,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:56,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 10:24:56,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:24:56,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 10:24:56,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:57,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:24:57,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:57,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:57,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:57,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:24:57,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:57,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:24:57,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:57,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:24:57,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:57,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:24:57,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:24:57,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 10:24:57,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:57,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:57,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:57,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:57,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:24:57,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:24:57,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 10:24:57,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:57,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:24:57,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:24:57,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:24:57,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:57,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 10:24:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:57,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:57,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:57,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:57,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:24:57,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:24:57,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 10:24:57,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:57,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:24:57,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:24:57,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:24:57,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:24:57,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 10:24:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:57,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:57,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:57,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:24:57,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:57,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 10:24:57,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:57,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:24:57,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:24:57,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:24:57,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:24:57,264 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-12 10:24:57,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1759353551] [2020-10-12 10:24:57,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:24:57,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 10:24:57,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922592539] [2020-10-12 10:24:57,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 10:24:57,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:24:57,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 10:24:57,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-12 10:24:57,269 INFO L87 Difference]: Start difference. First operand 53 states and 61 transitions. Second operand 12 states. [2020-10-12 10:24:57,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:24:57,684 INFO L93 Difference]: Finished difference Result 132 states and 167 transitions. [2020-10-12 10:24:57,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 10:24:57,685 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 44 [2020-10-12 10:24:57,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:24:57,687 INFO L225 Difference]: With dead ends: 132 [2020-10-12 10:24:57,687 INFO L226 Difference]: Without dead ends: 89 [2020-10-12 10:24:57,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2020-10-12 10:24:57,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-10-12 10:24:57,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 55. [2020-10-12 10:24:57,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-12 10:24:57,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 63 transitions. [2020-10-12 10:24:57,702 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 63 transitions. Word has length 44 [2020-10-12 10:24:57,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:24:57,703 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 63 transitions. [2020-10-12 10:24:57,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 10:24:57,703 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 63 transitions. [2020-10-12 10:24:57,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-12 10:24:57,704 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:24:57,705 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:24:57,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 10:24:57,705 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:24:57,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:24:57,706 INFO L82 PathProgramCache]: Analyzing trace with hash -426602934, now seen corresponding path program 1 times [2020-10-12 10:24:57,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:24:57,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253175635] [2020-10-12 10:24:57,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:24:57,716 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-12 10:24:57,717 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-12 10:24:57,717 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 10:24:57,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 10:24:57,748 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-12 10:24:57,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 10:24:57 BoogieIcfgContainer [2020-10-12 10:24:57,749 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 10:24:57,753 INFO L168 Benchmark]: Toolchain (without parser) took 25092.27 ms. Allocated memory was 140.0 MB in the beginning and 443.0 MB in the end (delta: 303.0 MB). Free memory was 101.2 MB in the beginning and 303.8 MB in the end (delta: -202.6 MB). Peak memory consumption was 100.5 MB. Max. memory is 7.1 GB. [2020-10-12 10:24:57,754 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 119.8 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-12 10:24:57,755 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.11 ms. Allocated memory is still 140.0 MB. Free memory was 101.2 MB in the beginning and 91.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-10-12 10:24:57,756 INFO L168 Benchmark]: Boogie Preprocessor took 133.19 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 91.2 MB in the beginning and 178.1 MB in the end (delta: -86.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-10-12 10:24:57,757 INFO L168 Benchmark]: RCFGBuilder took 363.84 ms. Allocated memory is still 200.3 MB. Free memory was 178.1 MB in the beginning and 162.7 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. [2020-10-12 10:24:57,758 INFO L168 Benchmark]: TraceAbstraction took 24285.03 ms. Allocated memory was 200.3 MB in the beginning and 443.0 MB in the end (delta: 242.7 MB). Free memory was 161.8 MB in the beginning and 303.8 MB in the end (delta: -141.9 MB). Peak memory consumption was 100.8 MB. Max. memory is 7.1 GB. [2020-10-12 10:24:57,762 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 119.8 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 294.11 ms. Allocated memory is still 140.0 MB. Free memory was 101.2 MB in the beginning and 91.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.19 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 91.2 MB in the beginning and 178.1 MB in the end (delta: -86.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 363.84 ms. Allocated memory is still 200.3 MB. Free memory was 178.1 MB in the beginning and 162.7 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24285.03 ms. Allocated memory was 200.3 MB in the beginning and 443.0 MB in the end (delta: 242.7 MB). Free memory was 161.8 MB in the beginning and 303.8 MB in the end (delta: -141.9 MB). Peak memory consumption was 100.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 2]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L4] int N = 1000000; [L6] int i,j=0,a[N]; [L7] unsigned int R=2; [L9] i=0 [L9] COND TRUE iN/2) [L9] i++ [L9] COND TRUE iN/2) [L9] i++ [L9] COND TRUE iN/2 [L12] a[i]=i%R [L9] i++ [L9] COND FALSE !(i