/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/sumt8.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 00:06:56,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 00:06:56,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 00:06:56,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 00:06:56,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 00:06:56,645 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 00:06:56,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 00:06:56,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 00:06:56,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 00:06:56,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 00:06:56,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 00:06:56,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 00:06:56,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 00:06:56,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 00:06:56,664 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 00:06:56,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 00:06:56,667 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 00:06:56,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 00:06:56,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 00:06:56,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 00:06:56,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 00:06:56,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 00:06:56,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 00:06:56,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 00:06:56,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 00:06:56,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 00:06:56,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 00:06:56,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 00:06:56,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 00:06:56,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 00:06:56,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 00:06:56,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 00:06:56,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 00:06:56,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 00:06:56,710 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 00:06:56,711 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 00:06:56,712 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 00:06:56,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 00:06:56,713 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 00:06:56,714 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 00:06:56,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 00:06:56,715 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 [2020-10-15 00:06:56,757 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 00:06:56,760 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 00:06:56,761 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 00:06:56,761 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 00:06:56,762 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 00:06:56,762 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 00:06:56,763 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 00:06:56,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 00:06:56,763 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 00:06:56,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 00:06:56,764 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 00:06:56,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 00:06:56,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 00:06:56,765 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 00:06:56,765 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 00:06:56,766 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 00:06:56,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 00:06:56,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 00:06:56,766 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 00:06:56,766 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 00:06:56,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 00:06:56,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 00:06:56,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 00:06:56,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 00:06:56,768 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 00:06:56,768 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 00:06:56,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 00:06:56,768 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 00:06:56,768 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 00:06:56,768 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 00:06:57,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 00:06:57,070 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 00:06:57,074 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 00:06:57,075 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 00:06:57,076 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 00:06:57,076 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt8.c [2020-10-15 00:06:57,141 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/776aa00b2/f24314b57a694017935ba75dc6b50c71/FLAGc4729b4e0 [2020-10-15 00:06:57,620 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 00:06:57,621 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/sumt8.c [2020-10-15 00:06:57,628 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/776aa00b2/f24314b57a694017935ba75dc6b50c71/FLAGc4729b4e0 [2020-10-15 00:06:58,010 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/776aa00b2/f24314b57a694017935ba75dc6b50c71 [2020-10-15 00:06:58,018 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 00:06:58,020 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 00:06:58,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 00:06:58,021 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 00:06:58,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 00:06:58,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:06:58" (1/1) ... [2020-10-15 00:06:58,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ecced43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:58, skipping insertion in model container [2020-10-15 00:06:58,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:06:58" (1/1) ... [2020-10-15 00:06:58,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 00:06:58,051 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 00:06:58,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 00:06:58,228 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 00:06:58,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 00:06:58,266 INFO L208 MainTranslator]: Completed translation [2020-10-15 00:06:58,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:58 WrapperNode [2020-10-15 00:06:58,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 00:06:58,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 00:06:58,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 00:06:58,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 00:06:58,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:58" (1/1) ... [2020-10-15 00:06:58,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:58" (1/1) ... [2020-10-15 00:06:58,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:58" (1/1) ... [2020-10-15 00:06:58,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:58" (1/1) ... [2020-10-15 00:06:58,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:58" (1/1) ... [2020-10-15 00:06:58,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:58" (1/1) ... [2020-10-15 00:06:58,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:58" (1/1) ... [2020-10-15 00:06:58,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 00:06:58,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 00:06:58,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 00:06:58,382 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 00:06:58,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:58" (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 [2020-10-15 00:06:58,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 00:06:58,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 00:06:58,448 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 00:06:58,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-15 00:06:58,448 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 00:06:58,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 00:06:58,448 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 00:06:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 00:06:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-15 00:06:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 00:06:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 00:06:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 00:06:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 00:06:58,716 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 00:06:58,716 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 00:06:58,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:06:58 BoogieIcfgContainer [2020-10-15 00:06:58,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 00:06:58,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 00:06:58,739 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 00:06:58,747 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 00:06:58,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:06:58" (1/3) ... [2020-10-15 00:06:58,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc7ddee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:06:58, skipping insertion in model container [2020-10-15 00:06:58,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:58" (2/3) ... [2020-10-15 00:06:58,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc7ddee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:06:58, skipping insertion in model container [2020-10-15 00:06:58,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:06:58" (3/3) ... [2020-10-15 00:06:58,758 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt8.c [2020-10-15 00:06:58,786 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 00:06:58,807 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 00:06:58,827 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 00:06:58,852 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 00:06:58,852 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 00:06:58,852 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 00:06:58,852 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 00:06:58,853 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 00:06:58,853 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 00:06:58,853 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 00:06:58,853 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 00:06:58,869 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-10-15 00:06:58,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 00:06:58,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:58,876 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:58,877 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:58,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:58,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1078562183, now seen corresponding path program 1 times [2020-10-15 00:06:58,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:58,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1900602398] [2020-10-15 00:06:58,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:59,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:59,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:59,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:59,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 00:06:59,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:59,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 400 [2020-10-15 00:06:59,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:59,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:59,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 00:06:59,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 00:06:59,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 00:06:59,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-15 00:06:59,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:59,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:59,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:59,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:59,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:59,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:59,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:06:59,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:59,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:59,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:06:59,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:59,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:06:59,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:59,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:06:59,776 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1900602398] [2020-10-15 00:06:59,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:06:59,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 00:06:59,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699199956] [2020-10-15 00:06:59,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 00:06:59,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:59,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 00:06:59,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 00:06:59,806 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 8 states. [2020-10-15 00:07:02,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:07:02,471 INFO L93 Difference]: Finished difference Result 71 states and 105 transitions. [2020-10-15 00:07:02,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 00:07:02,473 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-10-15 00:07:02,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:07:02,492 INFO L225 Difference]: With dead ends: 71 [2020-10-15 00:07:02,492 INFO L226 Difference]: Without dead ends: 39 [2020-10-15 00:07:02,498 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-15 00:07:02,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-15 00:07:02,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 31. [2020-10-15 00:07:02,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-15 00:07:02,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2020-10-15 00:07:02,538 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 14 [2020-10-15 00:07:02,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:07:02,538 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2020-10-15 00:07:02,539 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 00:07:02,539 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2020-10-15 00:07:02,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-15 00:07:02,540 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:07:02,540 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:07:02,541 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 00:07:02,541 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:07:02,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:07:02,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1550149586, now seen corresponding path program 1 times [2020-10-15 00:07:02,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:07:02,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [598723743] [2020-10-15 00:07:02,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:07:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:02,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:02,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:02,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:02,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:03,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:03,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 00:07:03,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 00:07:03,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 891 [2020-10-15 00:07:03,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:03,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:03,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:07:03,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 00:07:03,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 00:07:03,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 00:07:03,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:07:03,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:03,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:03,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:03,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:07:03,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:03,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:03,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:03,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:03,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:07:03,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:03,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:07:03,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 00:07:03,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 00:07:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:03,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:03,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:03,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:03,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:03,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 00:07:03,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:03,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:03,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:03,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:03,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:03,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-15 00:07:03,634 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:07:03,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [598723743] [2020-10-15 00:07:03,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:07:03,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-15 00:07:03,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419393103] [2020-10-15 00:07:03,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 00:07:03,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:07:03,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 00:07:03,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 00:07:03,642 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand 5 states. [2020-10-15 00:07:03,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:07:03,854 INFO L93 Difference]: Finished difference Result 56 states and 77 transitions. [2020-10-15 00:07:03,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 00:07:03,854 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-10-15 00:07:03,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:07:03,856 INFO L225 Difference]: With dead ends: 56 [2020-10-15 00:07:03,857 INFO L226 Difference]: Without dead ends: 40 [2020-10-15 00:07:03,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 00:07:03,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-15 00:07:03,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2020-10-15 00:07:03,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-15 00:07:03,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2020-10-15 00:07:03,875 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 22 [2020-10-15 00:07:03,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:07:03,875 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2020-10-15 00:07:03,875 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 00:07:03,876 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2020-10-15 00:07:03,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 00:07:03,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:07:03,878 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:07:03,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 00:07:03,879 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:07:03,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:07:03,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1734885426, now seen corresponding path program 1 times [2020-10-15 00:07:03,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:07:03,880 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1175042169] [2020-10-15 00:07:03,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:07:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:03,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:04,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:04,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:05,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:05,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 00:07:05,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 00:07:05,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1196 [2020-10-15 00:07:05,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:05,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:05,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:07:05,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 00:07:05,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 00:07:05,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:05,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:07:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:05,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:05,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:05,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:07:05,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:05,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:05,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:05,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:05,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:07:05,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:05,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:07:05,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:05,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 00:07:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:05,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:05,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:05,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:05,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:05,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 00:07:05,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:05,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:05,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:05,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:05,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:05,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:05,258 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:07:05,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1175042169] [2020-10-15 00:07:05,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:07:05,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-15 00:07:05,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421663184] [2020-10-15 00:07:05,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 00:07:05,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:07:05,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 00:07:05,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 00:07:05,261 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand 5 states. [2020-10-15 00:07:05,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:07:05,484 INFO L93 Difference]: Finished difference Result 56 states and 76 transitions. [2020-10-15 00:07:05,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 00:07:05,485 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-10-15 00:07:05,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:07:05,486 INFO L225 Difference]: With dead ends: 56 [2020-10-15 00:07:05,486 INFO L226 Difference]: Without dead ends: 40 [2020-10-15 00:07:05,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 00:07:05,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-15 00:07:05,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 34. [2020-10-15 00:07:05,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-15 00:07:05,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2020-10-15 00:07:05,495 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 23 [2020-10-15 00:07:05,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:07:05,496 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2020-10-15 00:07:05,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 00:07:05,496 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2020-10-15 00:07:05,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-15 00:07:05,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:07:05,497 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:07:05,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 00:07:05,498 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:07:05,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:07:05,498 INFO L82 PathProgramCache]: Analyzing trace with hash -985092371, now seen corresponding path program 1 times [2020-10-15 00:07:05,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:07:05,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [798014118] [2020-10-15 00:07:05,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:07:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:05,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:05,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:12,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:15,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:15,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-15 00:07:15,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 00:07:15,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10479 [2020-10-15 00:07:15,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:15,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:15,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:07:15,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 00:07:15,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 00:07:15,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:16,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:07:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:16,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:16,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:16,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:07:16,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:16,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:16,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:16,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:16,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:07:16,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:16,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:07:16,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:16,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 00:07:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:16,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:16,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:16,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:16,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:16,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 00:07:16,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:16,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:16,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:16,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:16,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:16,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:16,169 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:07:16,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [798014118] [2020-10-15 00:07:16,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:07:16,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-15 00:07:16,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778510613] [2020-10-15 00:07:16,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 00:07:16,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:07:16,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 00:07:16,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 00:07:16,174 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand 5 states. [2020-10-15 00:07:16,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:07:16,392 INFO L93 Difference]: Finished difference Result 56 states and 75 transitions. [2020-10-15 00:07:16,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 00:07:16,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-15 00:07:16,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:07:16,395 INFO L225 Difference]: With dead ends: 56 [2020-10-15 00:07:16,395 INFO L226 Difference]: Without dead ends: 40 [2020-10-15 00:07:16,396 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 00:07:16,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-15 00:07:16,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 35. [2020-10-15 00:07:16,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-15 00:07:16,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2020-10-15 00:07:16,411 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 24 [2020-10-15 00:07:16,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:07:16,412 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2020-10-15 00:07:16,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 00:07:16,412 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2020-10-15 00:07:16,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 00:07:16,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:07:16,413 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:07:16,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 00:07:16,414 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:07:16,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:07:16,415 INFO L82 PathProgramCache]: Analyzing trace with hash 738087597, now seen corresponding path program 1 times [2020-10-15 00:07:16,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:07:16,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [892804013] [2020-10-15 00:07:16,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:07:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:16,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:34,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:34,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-15 00:07:34,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:34,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17697 [2020-10-15 00:07:34,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:34,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:34,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:07:34,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 00:07:34,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 00:07:34,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:34,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:07:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:34,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:34,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:34,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:07:34,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:34,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:07:34,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:34,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:34,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:07:34,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:34,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:07:34,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:34,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 00:07:34,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:34,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:34,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:34,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:34,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:34,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 00:07:34,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:34,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:34,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:34,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:34,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:34,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:34,275 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:07:34,275 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [892804013] [2020-10-15 00:07:34,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:07:34,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-15 00:07:34,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938636352] [2020-10-15 00:07:34,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 00:07:34,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:07:34,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 00:07:34,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 00:07:34,279 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand 5 states. [2020-10-15 00:07:34,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:07:34,468 INFO L93 Difference]: Finished difference Result 56 states and 74 transitions. [2020-10-15 00:07:34,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 00:07:34,469 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-15 00:07:34,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:07:34,470 INFO L225 Difference]: With dead ends: 56 [2020-10-15 00:07:34,471 INFO L226 Difference]: Without dead ends: 40 [2020-10-15 00:07:34,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 00:07:34,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-15 00:07:34,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2020-10-15 00:07:34,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-15 00:07:34,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2020-10-15 00:07:34,478 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 25 [2020-10-15 00:07:34,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:07:34,478 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2020-10-15 00:07:34,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 00:07:34,478 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2020-10-15 00:07:34,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-15 00:07:34,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:07:34,479 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:07:34,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 00:07:34,480 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:07:34,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:07:34,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1534762488, now seen corresponding path program 1 times [2020-10-15 00:07:34,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:07:34,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [303144913] [2020-10-15 00:07:34,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:07:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:34,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:34,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:01,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:01,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-15 00:08:01,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:08:01,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26533 [2020-10-15 00:08:01,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:01,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:01,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:08:01,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 00:08:01,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 00:08:01,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:01,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:08:01,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:01,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:01,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:01,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:08:01,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:01,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:01,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:01,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:01,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:08:01,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:01,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:08:01,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:01,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 00:08:01,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:01,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:01,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:01,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:01,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:01,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 00:08:01,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:01,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:01,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:01,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:01,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:01,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:08:01,157 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:08:01,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [303144913] [2020-10-15 00:08:01,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:08:01,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-15 00:08:01,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022855186] [2020-10-15 00:08:01,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 00:08:01,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:08:01,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 00:08:01,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 00:08:01,159 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 5 states. [2020-10-15 00:08:05,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:08:05,483 INFO L93 Difference]: Finished difference Result 56 states and 73 transitions. [2020-10-15 00:08:05,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 00:08:05,484 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-10-15 00:08:05,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:08:05,485 INFO L225 Difference]: With dead ends: 56 [2020-10-15 00:08:05,485 INFO L226 Difference]: Without dead ends: 40 [2020-10-15 00:08:05,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 00:08:05,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-15 00:08:05,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2020-10-15 00:08:05,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-15 00:08:05,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2020-10-15 00:08:05,493 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 26 [2020-10-15 00:08:05,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:08:05,494 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2020-10-15 00:08:05,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 00:08:05,494 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2020-10-15 00:08:05,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 00:08:05,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:08:05,495 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:08:05,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 00:08:05,495 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:08:05,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:08:05,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1164474664, now seen corresponding path program 1 times [2020-10-15 00:08:05,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:08:05,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1900078338] [2020-10-15 00:08:05,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:08:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:05,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:06,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:51,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:51,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 00:08:51,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:08:51,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45897 [2020-10-15 00:08:51,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:51,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:51,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:08:51,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 00:08:51,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 00:08:51,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:08:51,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:08:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:51,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:51,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:51,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:08:51,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:51,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:51,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:51,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:51,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:08:51,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:51,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:08:51,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 00:08:51,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 00:08:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:51,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:51,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:51,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:51,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:51,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 00:08:51,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:51,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:51,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:51,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:51,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:51,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 00:08:51,572 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:08:51,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1900078338] [2020-10-15 00:08:51,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:08:51,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-15 00:08:51,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978404931] [2020-10-15 00:08:51,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 00:08:51,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:08:51,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 00:08:51,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 00:08:51,576 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 5 states. [2020-10-15 00:08:58,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:08:58,049 INFO L93 Difference]: Finished difference Result 55 states and 70 transitions. [2020-10-15 00:08:58,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 00:08:58,050 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-15 00:08:58,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:08:58,051 INFO L225 Difference]: With dead ends: 55 [2020-10-15 00:08:58,051 INFO L226 Difference]: Without dead ends: 39 [2020-10-15 00:08:58,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 00:08:58,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-15 00:08:58,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2020-10-15 00:08:58,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-15 00:08:58,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2020-10-15 00:08:58,060 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 27 [2020-10-15 00:08:58,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:08:58,060 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2020-10-15 00:08:58,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 00:08:58,061 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2020-10-15 00:08:58,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-15 00:08:58,061 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:08:58,062 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:08:58,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 00:08:58,062 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:08:58,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:08:58,062 INFO L82 PathProgramCache]: Analyzing trace with hash -915373789, now seen corresponding path program 1 times [2020-10-15 00:08:58,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:08:58,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [51797074] [2020-10-15 00:08:58,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:08:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:58,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:58,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:58,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:22,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:22,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-15 00:09:22,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 00:09:22,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24369 [2020-10-15 00:09:22,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:22,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:22,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:09:22,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 00:09:22,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 00:09:22,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:22,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:09:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:22,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:22,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:22,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:09:22,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:22,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:22,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:22,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:22,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:09:22,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:22,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:09:22,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:09:22,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 00:09:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:22,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:22,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:22,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:22,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:22,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 00:09:22,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:22,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:22,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:22,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:22,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:22,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:22,566 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:09:22,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [51797074] [2020-10-15 00:09:22,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:09:22,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-15 00:09:22,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557463302] [2020-10-15 00:09:22,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 00:09:22,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:09:22,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 00:09:22,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 00:09:22,569 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 5 states. [2020-10-15 00:09:22,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:09:22,708 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2020-10-15 00:09:22,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 00:09:22,708 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-15 00:09:22,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:09:22,710 INFO L225 Difference]: With dead ends: 56 [2020-10-15 00:09:22,710 INFO L226 Difference]: Without dead ends: 40 [2020-10-15 00:09:22,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 00:09:22,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-15 00:09:22,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2020-10-15 00:09:22,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-15 00:09:22,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2020-10-15 00:09:22,717 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 28 [2020-10-15 00:09:22,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:09:22,718 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2020-10-15 00:09:22,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 00:09:22,718 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2020-10-15 00:09:22,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-15 00:09:22,719 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:09:22,719 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:09:22,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 00:09:22,719 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:09:22,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:09:22,720 INFO L82 PathProgramCache]: Analyzing trace with hash -858115487, now seen corresponding path program 1 times [2020-10-15 00:09:22,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:09:22,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2040588214] [2020-10-15 00:09:22,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:09:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:22,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:22,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:31,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:31,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-15 00:09:31,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:09:31,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8839 [2020-10-15 00:09:31,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:31,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:31,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 00:09:31,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 00:09:31,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 00:09:31,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:31,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:09:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:31,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:31,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:31,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:09:31,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:31,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:31,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:31,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:31,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:09:31,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:31,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:09:31,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:31,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 00:09:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:31,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:31,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:31,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:31,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:31,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 00:09:31,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:31,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:31,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:31,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:31,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:31,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:31,760 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 00:09:31,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2040588214] [2020-10-15 00:09:31,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:09:31,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-15 00:09:31,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484439865] [2020-10-15 00:09:31,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 00:09:31,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:09:31,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 00:09:31,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 00:09:31,769 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand 8 states. [2020-10-15 00:09:42,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:09:42,251 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2020-10-15 00:09:42,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 00:09:42,317 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2020-10-15 00:09:42,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:09:42,317 INFO L225 Difference]: With dead ends: 39 [2020-10-15 00:09:42,318 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 00:09:42,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-15 00:09:42,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 00:09:42,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 00:09:42,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 00:09:42,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 00:09:42,320 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2020-10-15 00:09:42,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:09:42,320 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 00:09:42,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 00:09:42,320 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 00:09:42,320 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 00:09:42,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 00:09:42,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-15 00:09:42,436 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-15 00:09:42,437 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~SIZE~0 |old(~SIZE~0)|) [2020-10-15 00:09:42,437 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-15 00:09:42,437 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-15 00:09:42,437 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-15 00:09:42,437 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-15 00:09:42,437 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-15 00:09:42,438 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-10-15 00:09:42,438 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-15 00:09:42,438 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-10-15 00:09:42,438 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-10-15 00:09:42,438 INFO L268 CegarLoopResult]: For program point L31(lines 31 36) no Hoare annotation was computed. [2020-10-15 00:09:42,438 INFO L268 CegarLoopResult]: For program point L27(lines 27 36) no Hoare annotation was computed. [2020-10-15 00:09:42,438 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 41) no Hoare annotation was computed. [2020-10-15 00:09:42,438 INFO L268 CegarLoopResult]: For program point L23(lines 23 36) no Hoare annotation was computed. [2020-10-15 00:09:42,439 INFO L268 CegarLoopResult]: For program point L19-2(lines 19 39) no Hoare annotation was computed. [2020-10-15 00:09:42,439 INFO L268 CegarLoopResult]: For program point L33(lines 33 36) no Hoare annotation was computed. [2020-10-15 00:09:42,439 INFO L268 CegarLoopResult]: For program point L33-2(lines 21 36) no Hoare annotation was computed. [2020-10-15 00:09:42,439 INFO L268 CegarLoopResult]: For program point L29(lines 29 36) no Hoare annotation was computed. [2020-10-15 00:09:42,440 INFO L268 CegarLoopResult]: For program point L25(lines 25 36) no Hoare annotation was computed. [2020-10-15 00:09:42,440 INFO L268 CegarLoopResult]: For program point L21(lines 21 36) no Hoare annotation was computed. [2020-10-15 00:09:42,441 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 41) no Hoare annotation was computed. [2020-10-15 00:09:42,441 INFO L264 CegarLoopResult]: At program point L38(line 38) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0 main_~k~0 main_~v1~0 main_~v2~0 main_~v3~0 main_~v4~0 main_~v5~0))) (and (<= main_~l~0 .cse0) (<= .cse0 main_~l~0))) [2020-10-15 00:09:42,441 INFO L264 CegarLoopResult]: At program point L38-1(lines 19 39) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0 main_~k~0 main_~v1~0 main_~v2~0 main_~v3~0 main_~v4~0 main_~v5~0))) (and (<= main_~l~0 .cse0) (<= .cse0 main_~l~0))) [2020-10-15 00:09:42,441 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 14 41) the Hoare annotation is: true [2020-10-15 00:09:42,442 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-10-15 00:09:42,442 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-10-15 00:09:42,442 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-10-15 00:09:42,442 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-10-15 00:09:42,442 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-10-15 00:09:42,443 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-10-15 00:09:42,443 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-10-15 00:09:42,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 12:09:42 BoogieIcfgContainer [2020-10-15 00:09:42,487 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 00:09:42,493 INFO L168 Benchmark]: Toolchain (without parser) took 164470.44 ms. Allocated memory was 148.4 MB in the beginning and 660.1 MB in the end (delta: 511.7 MB). Free memory was 103.2 MB in the beginning and 196.7 MB in the end (delta: -93.6 MB). Peak memory consumption was 418.1 MB. Max. memory is 7.1 GB. [2020-10-15 00:09:42,494 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 148.4 MB. Free memory was 121.7 MB in the beginning and 121.2 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-15 00:09:42,498 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.00 ms. Allocated memory is still 148.4 MB. Free memory was 102.7 MB in the beginning and 92.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-10-15 00:09:42,500 INFO L168 Benchmark]: Boogie Preprocessor took 114.34 ms. Allocated memory was 148.4 MB in the beginning and 205.5 MB in the end (delta: 57.1 MB). Free memory was 92.7 MB in the beginning and 182.7 MB in the end (delta: -90.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-10-15 00:09:42,500 INFO L168 Benchmark]: RCFGBuilder took 338.59 ms. Allocated memory is still 205.5 MB. Free memory was 182.7 MB in the beginning and 166.9 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2020-10-15 00:09:42,505 INFO L168 Benchmark]: TraceAbstraction took 163748.77 ms. Allocated memory was 205.5 MB in the beginning and 660.1 MB in the end (delta: 454.6 MB). Free memory was 166.9 MB in the beginning and 196.7 MB in the end (delta: -29.8 MB). Peak memory consumption was 424.7 MB. Max. memory is 7.1 GB. [2020-10-15 00:09:42,512 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 148.4 MB. Free memory was 121.7 MB in the beginning and 121.2 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 246.00 ms. Allocated memory is still 148.4 MB. Free memory was 102.7 MB in the beginning and 92.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.34 ms. Allocated memory was 148.4 MB in the beginning and 205.5 MB in the end (delta: 57.1 MB). Free memory was 92.7 MB in the beginning and 182.7 MB in the end (delta: -90.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 338.59 ms. Allocated memory is still 205.5 MB. Free memory was 182.7 MB in the beginning and 166.9 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 163748.77 ms. Allocated memory was 205.5 MB in the beginning and 660.1 MB in the end (delta: 454.6 MB). Free memory was 166.9 MB in the beginning and 196.7 MB in the end (delta: -29.8 MB). Peak memory consumption was 424.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: l <= i + j + k + v1 + v2 + v3 + v4 + v5 && i + j + k + v1 + v2 + v3 + v4 + v5 <= l - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 163.4s, OverallIterations: 9, TraceHistogramMax: 2, AutomataDifference: 25.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 127 SDtfs, 384 SDslu, 171 SDs, 0 SdLazy, 714 SolverSat, 83 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 23.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 35 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 16 PreInvPairs, 21 NumberOfFragments, 53 HoareAnnotationTreeSize, 16 FomulaSimplifications, 738 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 19 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 137.8s InterpolantComputationTime, 217 NumberOfCodeBlocks, 217 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 208 ConstructedInterpolants, 0 QuantifiedInterpolants, 52108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 33/48 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...