/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:31:17,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:31:17,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:31:17,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:31:17,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:31:17,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:31:17,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:31:17,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:31:17,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:31:17,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:31:17,334 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:31:17,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:31:17,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:31:17,339 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:31:17,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:31:17,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:31:17,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:31:17,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:31:17,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:31:17,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:31:17,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:31:17,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:31:17,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:31:17,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:31:17,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:31:17,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:31:17,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:31:17,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:31:17,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:31:17,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:31:17,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:31:17,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:31:17,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:31:17,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:31:17,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:31:17,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:31:17,392 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:31:17,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:31:17,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:31:17,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:31:17,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:31:17,396 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 [2020-10-14 08:31:17,444 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:31:17,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:31:17,447 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:31:17,448 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:31:17,448 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:31:17,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:31:17,448 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:31:17,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:31:17,449 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:31:17,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:31:17,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:31:17,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:31:17,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:31:17,452 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:31:17,452 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:31:17,452 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:31:17,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:31:17,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:31:17,453 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:31:17,453 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:31:17,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:31:17,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:31:17,454 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:31:17,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:31:17,454 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:31:17,454 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:31:17,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:31:17,454 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:31:17,455 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:31:17,455 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 08:31:17,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:31:17,794 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:31:17,799 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:31:17,800 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:31:17,801 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:31:17,802 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-14 08:31:17,879 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b597d7c2/b69e016416644c9eb46e165e3de27763/FLAG42ae14391 [2020-10-14 08:31:18,572 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:31:18,573 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-14 08:31:18,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b597d7c2/b69e016416644c9eb46e165e3de27763/FLAG42ae14391 [2020-10-14 08:31:18,723 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b597d7c2/b69e016416644c9eb46e165e3de27763 [2020-10-14 08:31:18,734 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:31:18,736 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:31:18,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:31:18,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:31:18,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:31:18,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:31:18" (1/1) ... [2020-10-14 08:31:18,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cc325c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:18, skipping insertion in model container [2020-10-14 08:31:18,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:31:18" (1/1) ... [2020-10-14 08:31:18,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:31:18,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:31:20,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:31:20,321 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:31:21,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:31:21,631 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:31:21,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:21 WrapperNode [2020-10-14 08:31:21,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:31:21,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:31:21,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:31:21,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:31:21,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:21" (1/1) ... [2020-10-14 08:31:21,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:21" (1/1) ... [2020-10-14 08:31:21,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:21" (1/1) ... [2020-10-14 08:31:21,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:21" (1/1) ... [2020-10-14 08:31:21,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:21" (1/1) ... [2020-10-14 08:31:21,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:21" (1/1) ... [2020-10-14 08:31:21,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:21" (1/1) ... [2020-10-14 08:31:21,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:31:21,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:31:21,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:31:21,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:31:21,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:21" (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 [2020-10-14 08:31:21,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:31:21,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:31:21,952 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 08:31:21,953 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:31:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:31:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:31:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-14 08:31:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:31:21,954 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:31:21,954 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:31:21,954 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 08:31:21,954 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:31:21,954 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:31:21,955 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:31:21,955 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:31:21,955 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:31:21,955 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 08:31:21,955 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:31:21,956 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:31:21,956 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:31:21,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:31:21,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:31:24,830 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:31:24,830 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 08:31:24,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:31:24 BoogieIcfgContainer [2020-10-14 08:31:24,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:31:24,842 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:31:24,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:31:24,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:31:24,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:31:18" (1/3) ... [2020-10-14 08:31:24,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8bcaa6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:31:24, skipping insertion in model container [2020-10-14 08:31:24,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:21" (2/3) ... [2020-10-14 08:31:24,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8bcaa6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:31:24, skipping insertion in model container [2020-10-14 08:31:24,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:31:24" (3/3) ... [2020-10-14 08:31:24,850 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-14 08:31:24,863 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:31:24,872 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-10-14 08:31:24,890 INFO L251 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-10-14 08:31:24,918 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:31:24,918 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:31:24,918 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:31:24,919 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:31:24,919 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:31:24,919 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:31:24,919 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:31:24,919 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:31:24,960 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states. [2020-10-14 08:31:24,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-10-14 08:31:24,985 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:31:24,987 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:31:24,988 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:31:24,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:31:24,996 INFO L82 PathProgramCache]: Analyzing trace with hash -857825627, now seen corresponding path program 1 times [2020-10-14 08:31:25,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:31:25,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1857022841] [2020-10-14 08:31:25,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:31:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:31:26,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:26,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:27,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:27,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:28,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:28,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:28,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:28,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:29,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:29,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:29,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:30,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:31:30,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 08:31:30,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 08:31:30,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-14 08:31:30,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:31:30,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:31:30,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:31:30,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-14 08:31:30,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 206 [2020-10-14 08:31:30,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 08:31:31,802 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-14 08:31:31,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:31:31,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:31:31,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:31,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:31:31,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:31:31,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:31:31,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 08:31:31,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:31:31,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:31:31,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:31:31,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:31:31,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:31:31,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:31:32,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:31:32,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1857022841] [2020-10-14 08:31:32,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:31:32,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 08:31:32,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945621809] [2020-10-14 08:31:32,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 08:31:32,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:31:32,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 08:31:32,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:31:32,046 INFO L87 Difference]: Start difference. First operand 918 states. Second operand 4 states. [2020-10-14 08:31:32,611 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2020-10-14 08:31:39,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:31:39,913 INFO L93 Difference]: Finished difference Result 1584 states and 2837 transitions. [2020-10-14 08:31:39,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 08:31:39,919 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 304 [2020-10-14 08:31:39,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:31:39,953 INFO L225 Difference]: With dead ends: 1584 [2020-10-14 08:31:39,953 INFO L226 Difference]: Without dead ends: 1314 [2020-10-14 08:31:39,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 08:31:39,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2020-10-14 08:31:40,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1312. [2020-10-14 08:31:40,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1312 states. [2020-10-14 08:31:40,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1997 transitions. [2020-10-14 08:31:40,111 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1997 transitions. Word has length 304 [2020-10-14 08:31:40,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:31:40,113 INFO L479 AbstractCegarLoop]: Abstraction has 1312 states and 1997 transitions. [2020-10-14 08:31:40,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 08:31:40,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1997 transitions. [2020-10-14 08:31:40,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-10-14 08:31:40,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:31:40,120 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:31:40,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:31:40,121 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:31:40,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:31:40,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1627707544, now seen corresponding path program 1 times [2020-10-14 08:31:40,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:31:40,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1610733204] [2020-10-14 08:31:40,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:31:40,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:31:40,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:40,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:41,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:41,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:41,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:42,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:42,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:42,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:42,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:42,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:42,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:44,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:44,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:45,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:45,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:31:45,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 08:31:45,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:31:45,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-14 08:31:45,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:31:45,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:31:45,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:31:45,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-14 08:31:45,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 08:31:45,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:31:46,349 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-14 08:31:46,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:31:46,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:31:46,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:46,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:31:46,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:31:46,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:31:46,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 08:31:46,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:31:46,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:31:46,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:31:46,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:31:46,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:31:46,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:31:46,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:31:46,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1610733204] [2020-10-14 08:31:46,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:31:46,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 08:31:46,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315132268] [2020-10-14 08:31:46,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 08:31:46,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:31:46,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 08:31:46,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:31:46,595 INFO L87 Difference]: Start difference. First operand 1312 states and 1997 transitions. Second operand 4 states. [2020-10-14 08:31:47,228 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2020-10-14 08:31:53,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:31:53,529 INFO L93 Difference]: Finished difference Result 2525 states and 3896 transitions. [2020-10-14 08:31:53,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 08:31:53,533 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 304 [2020-10-14 08:31:53,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:31:53,552 INFO L225 Difference]: With dead ends: 2525 [2020-10-14 08:31:53,552 INFO L226 Difference]: Without dead ends: 2194 [2020-10-14 08:31:53,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 08:31:53,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2020-10-14 08:31:53,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 2192. [2020-10-14 08:31:53,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2192 states. [2020-10-14 08:31:53,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2192 states to 2192 states and 3360 transitions. [2020-10-14 08:31:53,677 INFO L78 Accepts]: Start accepts. Automaton has 2192 states and 3360 transitions. Word has length 304 [2020-10-14 08:31:53,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:31:53,680 INFO L479 AbstractCegarLoop]: Abstraction has 2192 states and 3360 transitions. [2020-10-14 08:31:53,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 08:31:53,680 INFO L276 IsEmpty]: Start isEmpty. Operand 2192 states and 3360 transitions. [2020-10-14 08:31:53,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-10-14 08:31:53,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:31:53,694 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:31:53,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:31:53,700 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:31:53,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:31:53,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1627368920, now seen corresponding path program 1 times [2020-10-14 08:31:53,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:31:53,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1755738724] [2020-10-14 08:31:53,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:31:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:31:54,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:55,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:55,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:55,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:55,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:55,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:56,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:56,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:56,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:56,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:56,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:56,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:56,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:57,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:59,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:31:59,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 08:31:59,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:31:59,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-14 08:31:59,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:31:59,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:31:59,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:31:59,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:31:59,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-14 08:31:59,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:31:59,946 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-14 08:31:59,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:31:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:31:59,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:31:59,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:31:59,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:31:59,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:31:59,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:31:59,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:31:59,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:31:59,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:31:59,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:31:59,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:31:59,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:32:00,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:32:00,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1755738724] [2020-10-14 08:32:00,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:32:00,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:32:00,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461767269] [2020-10-14 08:32:00,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 08:32:00,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:32:00,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 08:32:00,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 08:32:00,143 INFO L87 Difference]: Start difference. First operand 2192 states and 3360 transitions. Second operand 5 states. [2020-10-14 08:32:09,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:32:09,546 INFO L93 Difference]: Finished difference Result 6495 states and 9949 transitions. [2020-10-14 08:32:09,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 08:32:09,548 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 304 [2020-10-14 08:32:09,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:32:09,570 INFO L225 Difference]: With dead ends: 6495 [2020-10-14 08:32:09,571 INFO L226 Difference]: Without dead ends: 4316 [2020-10-14 08:32:09,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:32:09,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4316 states. [2020-10-14 08:32:09,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4316 to 4172. [2020-10-14 08:32:09,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4172 states. [2020-10-14 08:32:09,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4172 states to 4172 states and 6381 transitions. [2020-10-14 08:32:09,749 INFO L78 Accepts]: Start accepts. Automaton has 4172 states and 6381 transitions. Word has length 304 [2020-10-14 08:32:09,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:32:09,750 INFO L479 AbstractCegarLoop]: Abstraction has 4172 states and 6381 transitions. [2020-10-14 08:32:09,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 08:32:09,752 INFO L276 IsEmpty]: Start isEmpty. Operand 4172 states and 6381 transitions. [2020-10-14 08:32:09,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-10-14 08:32:09,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:32:09,763 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:32:09,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:32:09,765 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:32:09,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:32:09,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1511640188, now seen corresponding path program 1 times [2020-10-14 08:32:09,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:32:09,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2139699418] [2020-10-14 08:32:09,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:32:09,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:32:09,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:10,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:10,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:10,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:10,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:10,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:10,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:11,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:11,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:11,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:11,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:12,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:12,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:12,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:14,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:32:14,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 312 [2020-10-14 08:32:14,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 08:32:14,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 08:32:14,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:32:14,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:32:14,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:32:14,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 08:32:14,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-14 08:32:14,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:32:15,440 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-14 08:32:15,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:32:15,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:32:15,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:15,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:32:15,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:32:15,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:32:15,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:32:15,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:32:15,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:32:15,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:32:15,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:32:15,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:32:15,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:32:15,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:32:15,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2139699418] [2020-10-14 08:32:15,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:32:15,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 08:32:15,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847766391] [2020-10-14 08:32:15,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 08:32:15,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:32:15,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 08:32:15,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:32:15,563 INFO L87 Difference]: Start difference. First operand 4172 states and 6381 transitions. Second operand 4 states. [2020-10-14 08:32:25,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:32:25,068 INFO L93 Difference]: Finished difference Result 12212 states and 18630 transitions. [2020-10-14 08:32:25,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 08:32:25,069 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 306 [2020-10-14 08:32:25,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:32:25,111 INFO L225 Difference]: With dead ends: 12212 [2020-10-14 08:32:25,111 INFO L226 Difference]: Without dead ends: 8180 [2020-10-14 08:32:25,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:32:25,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8180 states. [2020-10-14 08:32:25,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8180 to 8040. [2020-10-14 08:32:25,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8040 states. [2020-10-14 08:32:25,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8040 states to 8040 states and 12245 transitions. [2020-10-14 08:32:25,456 INFO L78 Accepts]: Start accepts. Automaton has 8040 states and 12245 transitions. Word has length 306 [2020-10-14 08:32:25,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:32:25,457 INFO L479 AbstractCegarLoop]: Abstraction has 8040 states and 12245 transitions. [2020-10-14 08:32:25,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 08:32:25,457 INFO L276 IsEmpty]: Start isEmpty. Operand 8040 states and 12245 transitions. [2020-10-14 08:32:25,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-10-14 08:32:25,483 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:32:25,483 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:32:25,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:32:25,484 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:32:25,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:32:25,484 INFO L82 PathProgramCache]: Analyzing trace with hash 2109337801, now seen corresponding path program 1 times [2020-10-14 08:32:25,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:32:25,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [745768134] [2020-10-14 08:32:25,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:32:25,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:32:25,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:25,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:25,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:25,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:25,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:26,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:26,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:26,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:26,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:26,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:26,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:27,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:27,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:27,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:27,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:30,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:32:30,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 312 [2020-10-14 08:32:30,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-14 08:32:30,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 08:32:30,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:32:30,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:32:30,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:32:30,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:32:30,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 08:32:30,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:32:31,090 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-14 08:32:31,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:32:31,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:32:31,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:31,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:32:31,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:32:31,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:32:31,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:32:31,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:32:31,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:32:31,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:32:31,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:32:31,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:32:31,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:32:31,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:32:31,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [745768134] [2020-10-14 08:32:31,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:32:31,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 08:32:31,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952658293] [2020-10-14 08:32:31,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 08:32:31,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:32:31,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 08:32:31,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:32:31,245 INFO L87 Difference]: Start difference. First operand 8040 states and 12245 transitions. Second operand 4 states. [2020-10-14 08:32:36,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:32:36,581 INFO L93 Difference]: Finished difference Result 23961 states and 36459 transitions. [2020-10-14 08:32:36,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 08:32:36,582 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 306 [2020-10-14 08:32:36,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:32:36,643 INFO L225 Difference]: With dead ends: 23961 [2020-10-14 08:32:36,644 INFO L226 Difference]: Without dead ends: 15948 [2020-10-14 08:32:36,665 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:32:36,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15948 states. [2020-10-14 08:32:37,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15948 to 8051. [2020-10-14 08:32:37,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8051 states. [2020-10-14 08:32:37,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8051 states to 8051 states and 12260 transitions. [2020-10-14 08:32:37,192 INFO L78 Accepts]: Start accepts. Automaton has 8051 states and 12260 transitions. Word has length 306 [2020-10-14 08:32:37,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:32:37,192 INFO L479 AbstractCegarLoop]: Abstraction has 8051 states and 12260 transitions. [2020-10-14 08:32:37,192 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 08:32:37,192 INFO L276 IsEmpty]: Start isEmpty. Operand 8051 states and 12260 transitions. [2020-10-14 08:32:37,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2020-10-14 08:32:37,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:32:37,212 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:32:37,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:32:37,212 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:32:37,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:32:37,213 INFO L82 PathProgramCache]: Analyzing trace with hash 103692629, now seen corresponding path program 1 times [2020-10-14 08:32:37,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:32:37,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1049906465] [2020-10-14 08:32:37,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:32:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:32:37,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:37,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:37,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:37,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:37,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:37,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:37,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:37,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:38,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:38,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:38,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:38,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:38,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:38,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:39,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:39,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:42,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:32:42,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 313 [2020-10-14 08:32:42,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 08:32:42,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-14 08:32:42,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:32:42,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:32:42,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:32:42,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 08:32:42,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 08:32:42,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:32:42,802 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-14 08:32:42,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:32:42,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:32:42,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:42,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:32:42,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:32:42,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:32:42,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:32:42,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:32:42,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:32:42,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:32:42,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:32:42,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:32:42,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:32:42,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:32:42,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1049906465] [2020-10-14 08:32:42,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:32:42,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 08:32:42,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650981412] [2020-10-14 08:32:42,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 08:32:42,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:32:42,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 08:32:42,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:32:42,900 INFO L87 Difference]: Start difference. First operand 8051 states and 12260 transitions. Second operand 4 states. [2020-10-14 08:32:52,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:32:52,761 INFO L93 Difference]: Finished difference Result 24058 states and 36626 transitions. [2020-10-14 08:32:52,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 08:32:52,761 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 307 [2020-10-14 08:32:52,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:32:52,795 INFO L225 Difference]: With dead ends: 24058 [2020-10-14 08:32:52,796 INFO L226 Difference]: Without dead ends: 16057 [2020-10-14 08:32:52,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:32:52,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16057 states. [2020-10-14 08:32:53,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16057 to 8067. [2020-10-14 08:32:53,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8067 states. [2020-10-14 08:32:53,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8067 states to 8067 states and 12279 transitions. [2020-10-14 08:32:53,267 INFO L78 Accepts]: Start accepts. Automaton has 8067 states and 12279 transitions. Word has length 307 [2020-10-14 08:32:53,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:32:53,267 INFO L479 AbstractCegarLoop]: Abstraction has 8067 states and 12279 transitions. [2020-10-14 08:32:53,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 08:32:53,267 INFO L276 IsEmpty]: Start isEmpty. Operand 8067 states and 12279 transitions. [2020-10-14 08:32:53,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-14 08:32:53,285 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:32:53,285 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:32:53,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:32:53,286 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:32:53,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:32:53,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1940269887, now seen corresponding path program 1 times [2020-10-14 08:32:53,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:32:53,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1691663966] [2020-10-14 08:32:53,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:32:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:32:53,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:53,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:53,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:53,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:53,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:53,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:53,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:54,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:54,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:54,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:54,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:54,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:54,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:54,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:54,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:55,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:58,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:32:58,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-10-14 08:32:58,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 08:32:58,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 08:32:58,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:32:58,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:32:58,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:32:58,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 08:32:58,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 08:32:58,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:32:58,951 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-14 08:32:58,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:32:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:32:58,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:32:58,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:32:58,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:32:58,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:32:58,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:32:58,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:32:58,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:32:58,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:32:58,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:32:58,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:32:58,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:32:59,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:32:59,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1691663966] [2020-10-14 08:32:59,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:32:59,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 08:32:59,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710212900] [2020-10-14 08:32:59,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 08:32:59,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:32:59,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 08:32:59,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:32:59,085 INFO L87 Difference]: Start difference. First operand 8067 states and 12279 transitions. Second operand 4 states. [2020-10-14 08:33:08,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:33:08,687 INFO L93 Difference]: Finished difference Result 23650 states and 35934 transitions. [2020-10-14 08:33:08,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 08:33:08,688 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 308 [2020-10-14 08:33:08,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:33:08,725 INFO L225 Difference]: With dead ends: 23650 [2020-10-14 08:33:08,726 INFO L226 Difference]: Without dead ends: 15780 [2020-10-14 08:33:08,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:33:08,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15780 states. [2020-10-14 08:33:09,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15780 to 15644. [2020-10-14 08:33:09,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15644 states. [2020-10-14 08:33:09,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15644 states to 15644 states and 23683 transitions. [2020-10-14 08:33:09,376 INFO L78 Accepts]: Start accepts. Automaton has 15644 states and 23683 transitions. Word has length 308 [2020-10-14 08:33:09,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:33:09,377 INFO L479 AbstractCegarLoop]: Abstraction has 15644 states and 23683 transitions. [2020-10-14 08:33:09,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 08:33:09,377 INFO L276 IsEmpty]: Start isEmpty. Operand 15644 states and 23683 transitions. [2020-10-14 08:33:09,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-14 08:33:09,406 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:33:09,407 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:33:09,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:33:09,407 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:33:09,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:33:09,408 INFO L82 PathProgramCache]: Analyzing trace with hash 804412892, now seen corresponding path program 1 times [2020-10-14 08:33:09,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:33:09,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1273909864] [2020-10-14 08:33:09,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:33:09,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:33:09,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:10,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:10,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:10,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:10,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:10,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:11,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:11,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:11,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:11,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:11,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:11,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:11,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:12,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:12,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:13,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:13,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:13,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:14,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:33:14,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-10-14 08:33:14,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-14 08:33:14,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 08:33:14,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:33:14,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:33:14,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:33:14,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:33:14,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-14 08:33:14,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:33:15,186 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-14 08:33:15,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:33:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:33:15,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:15,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:33:15,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:33:15,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:33:15,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:33:15,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:33:15,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:33:15,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:33:15,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:33:15,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:33:15,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:33:15,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:33:15,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1273909864] [2020-10-14 08:33:15,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:33:15,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:33:15,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880217273] [2020-10-14 08:33:15,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 08:33:15,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:33:15,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 08:33:15,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 08:33:15,333 INFO L87 Difference]: Start difference. First operand 15644 states and 23683 transitions. Second operand 5 states. [2020-10-14 08:33:24,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:33:24,967 INFO L93 Difference]: Finished difference Result 46282 states and 69969 transitions. [2020-10-14 08:33:24,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 08:33:24,968 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 308 [2020-10-14 08:33:24,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:33:25,038 INFO L225 Difference]: With dead ends: 46282 [2020-10-14 08:33:25,038 INFO L226 Difference]: Without dead ends: 30691 [2020-10-14 08:33:25,075 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:33:25,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30691 states. [2020-10-14 08:33:26,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30691 to 30585. [2020-10-14 08:33:26,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30585 states. [2020-10-14 08:33:26,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30585 states to 30585 states and 45970 transitions. [2020-10-14 08:33:26,254 INFO L78 Accepts]: Start accepts. Automaton has 30585 states and 45970 transitions. Word has length 308 [2020-10-14 08:33:26,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:33:26,254 INFO L479 AbstractCegarLoop]: Abstraction has 30585 states and 45970 transitions. [2020-10-14 08:33:26,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 08:33:26,254 INFO L276 IsEmpty]: Start isEmpty. Operand 30585 states and 45970 transitions. [2020-10-14 08:33:26,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-10-14 08:33:26,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:33:26,298 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:33:26,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 08:33:26,298 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:33:26,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:33:26,299 INFO L82 PathProgramCache]: Analyzing trace with hash 495662398, now seen corresponding path program 1 times [2020-10-14 08:33:26,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:33:26,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861188729] [2020-10-14 08:33:26,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:33:26,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:33:26,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:26,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:26,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:26,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:26,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:26,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:27,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:27,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:27,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:27,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:27,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:27,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:27,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:27,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:27,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:28,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:31,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:33:31,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 315 [2020-10-14 08:33:31,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 08:33:31,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 08:33:31,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:33:31,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:33:31,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:33:31,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 08:33:31,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 08:33:31,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:33:32,049 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-14 08:33:32,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:33:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:33:32,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:32,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:33:32,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:33:32,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:33:32,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:33:32,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:33:32,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:33:32,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:33:32,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:33:32,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:33:32,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:33:32,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:33:32,173 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [861188729] [2020-10-14 08:33:32,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:33:32,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 08:33:32,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102348388] [2020-10-14 08:33:32,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 08:33:32,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:33:32,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 08:33:32,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:33:32,176 INFO L87 Difference]: Start difference. First operand 30585 states and 45970 transitions. Second operand 4 states. [2020-10-14 08:33:43,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:33:43,569 INFO L93 Difference]: Finished difference Result 89783 states and 134609 transitions. [2020-10-14 08:33:43,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 08:33:43,570 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 309 [2020-10-14 08:33:43,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:33:43,688 INFO L225 Difference]: With dead ends: 89783 [2020-10-14 08:33:43,688 INFO L226 Difference]: Without dead ends: 59779 [2020-10-14 08:33:43,739 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:33:43,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59779 states. [2020-10-14 08:33:45,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59779 to 59695. [2020-10-14 08:33:45,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59695 states. [2020-10-14 08:33:45,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59695 states to 59695 states and 88993 transitions. [2020-10-14 08:33:45,883 INFO L78 Accepts]: Start accepts. Automaton has 59695 states and 88993 transitions. Word has length 309 [2020-10-14 08:33:45,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:33:45,883 INFO L479 AbstractCegarLoop]: Abstraction has 59695 states and 88993 transitions. [2020-10-14 08:33:45,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 08:33:45,883 INFO L276 IsEmpty]: Start isEmpty. Operand 59695 states and 88993 transitions. [2020-10-14 08:33:45,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-10-14 08:33:45,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:33:45,936 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:33:45,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 08:33:45,937 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:33:45,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:33:45,937 INFO L82 PathProgramCache]: Analyzing trace with hash -367914261, now seen corresponding path program 1 times [2020-10-14 08:33:45,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:33:45,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [489809005] [2020-10-14 08:33:45,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:33:46,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:33:46,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:46,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:46,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:46,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:46,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:46,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:46,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:47,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:47,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:47,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:47,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:47,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:47,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:51,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:33:51,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 316 [2020-10-14 08:33:51,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-14 08:33:51,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 08:33:51,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:33:51,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:33:51,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:33:51,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:33:51,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-10-14 08:33:51,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:33:51,809 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-14 08:33:51,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:33:51,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:33:51,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:33:51,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:33:51,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:33:51,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:33:51,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:33:51,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:33:51,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:33:51,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:33:51,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:33:51,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:33:51,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:33:51,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:33:51,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [489809005] [2020-10-14 08:33:51,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:33:51,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 08:33:51,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796492565] [2020-10-14 08:33:51,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 08:33:51,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:33:51,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 08:33:51,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 08:33:51,991 INFO L87 Difference]: Start difference. First operand 59695 states and 88993 transitions. Second operand 5 states. [2020-10-14 08:34:04,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:34:04,149 INFO L93 Difference]: Finished difference Result 120691 states and 179609 transitions. [2020-10-14 08:34:04,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 08:34:04,150 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 310 [2020-10-14 08:34:04,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:34:04,292 INFO L225 Difference]: With dead ends: 120691 [2020-10-14 08:34:04,293 INFO L226 Difference]: Without dead ends: 62447 [2020-10-14 08:34:04,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:34:04,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62447 states. [2020-10-14 08:34:07,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62447 to 59504. [2020-10-14 08:34:07,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59504 states. [2020-10-14 08:34:07,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59504 states to 59504 states and 88645 transitions. [2020-10-14 08:34:07,418 INFO L78 Accepts]: Start accepts. Automaton has 59504 states and 88645 transitions. Word has length 310 [2020-10-14 08:34:07,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:34:07,418 INFO L479 AbstractCegarLoop]: Abstraction has 59504 states and 88645 transitions. [2020-10-14 08:34:07,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 08:34:07,418 INFO L276 IsEmpty]: Start isEmpty. Operand 59504 states and 88645 transitions. [2020-10-14 08:34:07,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-10-14 08:34:07,474 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:34:07,475 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:34:07,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 08:34:07,475 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:34:07,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:34:07,476 INFO L82 PathProgramCache]: Analyzing trace with hash 368824080, now seen corresponding path program 1 times [2020-10-14 08:34:07,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:34:07,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1047272303] [2020-10-14 08:34:07,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:34:07,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:34:07,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:07,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:07,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:07,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:07,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:08,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:08,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:09,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:09,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:09,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:09,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:09,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:09,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:09,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:10,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:11,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:12,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:34:12,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-10-14 08:34:12,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 08:34:12,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5115 [2020-10-14 08:34:12,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:34:12,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:34:12,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:34:12,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 08:34:12,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:34:12,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:34:13,307 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-14 08:34:13,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:34:13,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:34:13,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:13,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:34:13,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:34:13,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:34:13,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:34:13,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:34:13,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:34:13,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:34:13,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:34:13,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:34:13,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:34:13,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:34:13,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1047272303] [2020-10-14 08:34:13,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:34:13,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 08:34:13,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093343957] [2020-10-14 08:34:13,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 08:34:13,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:34:13,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 08:34:13,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:34:13,466 INFO L87 Difference]: Start difference. First operand 59504 states and 88645 transitions. Second operand 4 states. [2020-10-14 08:34:24,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:34:24,167 INFO L93 Difference]: Finished difference Result 177949 states and 264998 transitions. [2020-10-14 08:34:24,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 08:34:24,168 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 312 [2020-10-14 08:34:24,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:34:24,308 INFO L225 Difference]: With dead ends: 177949 [2020-10-14 08:34:24,308 INFO L226 Difference]: Without dead ends: 118660 [2020-10-14 08:34:24,372 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:34:24,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118660 states. [2020-10-14 08:34:29,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118660 to 59606. [2020-10-14 08:34:29,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59606 states. [2020-10-14 08:34:29,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59606 states to 59606 states and 88783 transitions. [2020-10-14 08:34:29,807 INFO L78 Accepts]: Start accepts. Automaton has 59606 states and 88783 transitions. Word has length 312 [2020-10-14 08:34:29,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:34:29,807 INFO L479 AbstractCegarLoop]: Abstraction has 59606 states and 88783 transitions. [2020-10-14 08:34:29,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 08:34:29,807 INFO L276 IsEmpty]: Start isEmpty. Operand 59606 states and 88783 transitions. [2020-10-14 08:34:29,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2020-10-14 08:34:29,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:34:29,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:34:29,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 08:34:29,849 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:34:29,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:34:29,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1563812762, now seen corresponding path program 1 times [2020-10-14 08:34:29,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:34:29,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1960668528] [2020-10-14 08:34:29,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:34:29,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:34:29,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:30,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:30,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:30,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:30,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:33,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:33,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:33,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:33,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:33,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:33,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:33,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:33,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:33,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:33,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:33,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:34,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:34:34,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 319 [2020-10-14 08:34:34,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 08:34:34,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-14 08:34:34,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:34:34,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:34:34,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:34:34,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 08:34:34,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:34:34,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:34:35,492 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-14 08:34:35,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:34:35,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:34:35,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:35,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:34:35,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:34:35,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:34:35,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:34:35,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:34:35,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:34:35,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:34:35,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:34:35,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:34:35,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:34:35,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:34:35,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1960668528] [2020-10-14 08:34:35,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:34:35,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 08:34:35,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088453484] [2020-10-14 08:34:35,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 08:34:35,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:34:35,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 08:34:35,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:34:35,572 INFO L87 Difference]: Start difference. First operand 59606 states and 88783 transitions. Second operand 4 states. [2020-10-14 08:34:48,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:34:48,331 INFO L93 Difference]: Finished difference Result 178243 states and 265425 transitions. [2020-10-14 08:34:48,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 08:34:48,332 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 313 [2020-10-14 08:34:48,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:34:48,460 INFO L225 Difference]: With dead ends: 178243 [2020-10-14 08:34:48,460 INFO L226 Difference]: Without dead ends: 118836 [2020-10-14 08:34:48,517 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 08:34:48,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118836 states. [2020-10-14 08:34:51,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118836 to 59750. [2020-10-14 08:34:51,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59750 states. [2020-10-14 08:34:52,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59750 states to 59750 states and 88993 transitions. [2020-10-14 08:34:52,061 INFO L78 Accepts]: Start accepts. Automaton has 59750 states and 88993 transitions. Word has length 313 [2020-10-14 08:34:52,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:34:52,062 INFO L479 AbstractCegarLoop]: Abstraction has 59750 states and 88993 transitions. [2020-10-14 08:34:52,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 08:34:52,062 INFO L276 IsEmpty]: Start isEmpty. Operand 59750 states and 88993 transitions. [2020-10-14 08:34:52,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-10-14 08:34:52,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:34:52,102 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:34:52,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 08:34:52,103 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:34:52,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:34:52,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1287911622, now seen corresponding path program 1 times [2020-10-14 08:34:52,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:34:52,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1462742503] [2020-10-14 08:34:52,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:34:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:34:52,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:52,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:52,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:52,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:52,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:52,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:52,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:54,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:54,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:54,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:54,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:54,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:54,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:54,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:54,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:55,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:55,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:55,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:34:57,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:34:57,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-10-14 08:34:57,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-14 08:34:57,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5274 [2020-10-14 08:34:57,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:34:57,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:34:57,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:34:57,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 08:34:57,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-14 08:34:57,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0