/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label53.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:30:02,554 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:30:02,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:30:02,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:30:02,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:30:02,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:30:02,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:30:02,630 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:30:02,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:30:02,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:30:02,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:30:02,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:30:02,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:30:02,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:30:02,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:30:02,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:30:02,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:30:02,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:30:02,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:30:02,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:30:02,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:30:02,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:30:02,670 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:30:02,671 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:30:02,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:30:02,674 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:30:02,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:30:02,678 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:30:02,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:30:02,680 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:30:02,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:30:02,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:30:02,682 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:30:02,683 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:30:02,684 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:30:02,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:30:02,685 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:30:02,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:30:02,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:30:02,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:30:02,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:30:02,690 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 13:30:02,736 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:30:02,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:30:02,737 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:30:02,737 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:30:02,738 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:30:02,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:30:02,738 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:30:02,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:30:02,739 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:30:02,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:30:02,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:30:02,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:30:02,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:30:02,740 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:30:02,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:30:02,740 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:30:02,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:30:02,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:30:02,741 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:30:02,741 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:30:02,741 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:30:02,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:30:02,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:30:02,742 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:30:02,742 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:30:02,742 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:30:02,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:30:02,742 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:30:02,743 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:30:02,743 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:30:03,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:30:03,299 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:30:03,304 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:30:03,306 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:30:03,309 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:30:03,310 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label53.c [2020-09-25 13:30:03,414 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2aaf0f9c2/6c54c632e4714c31942622bbd9b722c6/FLAG8f968dc9b [2020-09-25 13:30:04,180 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:30:04,182 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label53.c [2020-09-25 13:30:04,197 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2aaf0f9c2/6c54c632e4714c31942622bbd9b722c6/FLAG8f968dc9b [2020-09-25 13:30:04,412 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2aaf0f9c2/6c54c632e4714c31942622bbd9b722c6 [2020-09-25 13:30:04,428 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:30:04,438 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:30:04,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:30:04,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:30:04,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:30:04,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:30:04" (1/1) ... [2020-09-25 13:30:04,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@488fa6c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:30:04, skipping insertion in model container [2020-09-25 13:30:04,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:30:04" (1/1) ... [2020-09-25 13:30:04,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:30:04,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:30:05,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:30:05,163 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:30:05,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:30:05,275 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:30:05,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:30:05 WrapperNode [2020-09-25 13:30:05,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:30:05,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:30:05,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:30:05,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:30:05,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:30:05" (1/1) ... [2020-09-25 13:30:05,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:30:05" (1/1) ... [2020-09-25 13:30:05,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:30:05" (1/1) ... [2020-09-25 13:30:05,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:30:05" (1/1) ... [2020-09-25 13:30:05,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:30:05" (1/1) ... [2020-09-25 13:30:05,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:30:05" (1/1) ... [2020-09-25 13:30:05,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:30:05" (1/1) ... [2020-09-25 13:30:05,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:30:05,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:30:05,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:30:05,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:30:05,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:30:05" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:30:05,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:30:05,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:30:05,464 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 13:30:05,464 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:30:05,465 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 13:30:05,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:30:05,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:30:05,465 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 13:30:05,465 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:30:05,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:30:05,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:30:06,909 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:30:06,909 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 13:30:06,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:30:06 BoogieIcfgContainer [2020-09-25 13:30:06,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:30:06,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:30:06,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:30:06,933 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:30:06,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:30:04" (1/3) ... [2020-09-25 13:30:06,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6673c57c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:30:06, skipping insertion in model container [2020-09-25 13:30:06,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:30:05" (2/3) ... [2020-09-25 13:30:06,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6673c57c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:30:06, skipping insertion in model container [2020-09-25 13:30:06,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:30:06" (3/3) ... [2020-09-25 13:30:06,938 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label53.c [2020-09-25 13:30:06,949 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:30:06,965 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:30:06,987 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:30:07,025 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:30:07,025 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:30:07,025 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:30:07,026 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:30:07,026 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:30:07,026 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:30:07,026 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:30:07,026 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:30:07,061 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states. [2020-09-25 13:30:07,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 13:30:07,083 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:30:07,085 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] [2020-09-25 13:30:07,085 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:30:07,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:30:07,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1414748743, now seen corresponding path program 1 times [2020-09-25 13:30:07,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:30:07,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1923842077] [2020-09-25 13:30:07,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:30:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:30:07,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:07,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:08,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:09,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:11,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:12,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:30:12,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 13:30:12,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:30:12,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 13:30:12,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:30:12,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:30:12,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:30:12,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 13:30:12,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-09-25 13:30:12,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 13:30:12,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:30:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:30:12,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:12,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:30:12,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:30:12,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:30:12,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 13:30:12,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:30:12,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:30:12,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:30:12,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:30:12,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 13:30:12,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:30:12,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:30:12,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1923842077] [2020-09-25 13:30:12,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:30:12,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 13:30:12,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977617136] [2020-09-25 13:30:12,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:30:12,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:30:12,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:30:12,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:30:12,940 INFO L87 Difference]: Start difference. First operand 525 states. Second operand 5 states. [2020-09-25 13:30:15,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:30:15,117 INFO L93 Difference]: Finished difference Result 1259 states and 1658 transitions. [2020-09-25 13:30:15,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:30:15,119 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-09-25 13:30:15,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:30:15,144 INFO L225 Difference]: With dead ends: 1259 [2020-09-25 13:30:15,144 INFO L226 Difference]: Without dead ends: 685 [2020-09-25 13:30:15,154 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:30:15,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2020-09-25 13:30:15,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 603. [2020-09-25 13:30:15,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2020-09-25 13:30:15,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 725 transitions. [2020-09-25 13:30:15,326 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 725 transitions. Word has length 142 [2020-09-25 13:30:15,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:30:15,327 INFO L479 AbstractCegarLoop]: Abstraction has 603 states and 725 transitions. [2020-09-25 13:30:15,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:30:15,327 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 725 transitions. [2020-09-25 13:30:15,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 13:30:15,334 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:30:15,335 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:30:15,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:30:15,336 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:30:15,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:30:15,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1681317672, now seen corresponding path program 1 times [2020-09-25 13:30:15,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:30:15,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1272026495] [2020-09-25 13:30:15,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:30:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:30:15,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:15,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:15,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:16,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:20,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:30:20,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 13:30:20,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:30:20,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 13:30:20,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:30:20,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:30:20,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 13:30:20,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 13:30:20,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-09-25 13:30:20,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:30:20,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:30:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:30:20,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:20,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:30:20,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:30:20,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:30:20,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 13:30:20,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:30:20,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:30:20,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 13:30:20,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:30:20,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 13:30:20,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:30:20,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 13:30:20,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:30:20,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:20,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:20,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:30:20,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:30:20,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:30:20,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 13:30:20,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:30:20,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:30:20,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:30:20,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:30:20,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 13:30:20,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:30:21,152 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:30:21,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1272026495] [2020-09-25 13:30:21,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:30:21,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 13:30:21,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455467400] [2020-09-25 13:30:21,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 13:30:21,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:30:21,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 13:30:21,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-09-25 13:30:21,157 INFO L87 Difference]: Start difference. First operand 603 states and 725 transitions. Second operand 13 states. [2020-09-25 13:30:21,421 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2020-09-25 13:30:21,969 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2020-09-25 13:30:23,044 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2020-09-25 13:30:23,442 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2020-09-25 13:30:26,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:30:26,999 INFO L93 Difference]: Finished difference Result 2302 states and 3128 transitions. [2020-09-25 13:30:27,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-25 13:30:27,000 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 163 [2020-09-25 13:30:27,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:30:27,009 INFO L225 Difference]: With dead ends: 2302 [2020-09-25 13:30:27,010 INFO L226 Difference]: Without dead ends: 1326 [2020-09-25 13:30:27,016 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=245, Invalid=457, Unknown=0, NotChecked=0, Total=702 [2020-09-25 13:30:27,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2020-09-25 13:30:27,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1283. [2020-09-25 13:30:27,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1283 states. [2020-09-25 13:30:27,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1514 transitions. [2020-09-25 13:30:27,066 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1514 transitions. Word has length 163 [2020-09-25 13:30:27,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:30:27,066 INFO L479 AbstractCegarLoop]: Abstraction has 1283 states and 1514 transitions. [2020-09-25 13:30:27,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 13:30:27,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1514 transitions. [2020-09-25 13:30:27,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-25 13:30:27,073 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:30:27,073 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:30:27,073 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:30:27,074 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:30:27,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:30:27,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1982265959, now seen corresponding path program 1 times [2020-09-25 13:30:27,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:30:27,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2077124193] [2020-09-25 13:30:27,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:30:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:30:27,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:27,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:27,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:27,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:28,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:29,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:32,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:30:32,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-25 13:30:32,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 13:30:32,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 13:30:32,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:30:32,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:30:32,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:30:32,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-09-25 13:30:32,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-09-25 13:30:32,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:30:32,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:30:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:30:32,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:32,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:30:32,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:30:32,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:30:32,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 13:30:32,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:30:32,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:30:32,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:30:32,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:30:32,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:30:32,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:30:32,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 13:30:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:30:32,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:32,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:30:32,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 13:30:32,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:30:32,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 13:30:32,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:30:32,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:30:32,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:30:32,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:30:32,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 13:30:32,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:30:32,450 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 33 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:30:32,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2077124193] [2020-09-25 13:30:32,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:30:32,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 13:30:32,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787351107] [2020-09-25 13:30:32,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:30:32,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:30:32,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:30:32,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:30:32,456 INFO L87 Difference]: Start difference. First operand 1283 states and 1514 transitions. Second operand 5 states. [2020-09-25 13:30:34,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:30:34,745 INFO L93 Difference]: Finished difference Result 3513 states and 4258 transitions. [2020-09-25 13:30:34,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 13:30:34,746 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 185 [2020-09-25 13:30:34,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:30:34,764 INFO L225 Difference]: With dead ends: 3513 [2020-09-25 13:30:34,764 INFO L226 Difference]: Without dead ends: 2254 [2020-09-25 13:30:34,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:30:34,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2254 states. [2020-09-25 13:30:34,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2254 to 2006. [2020-09-25 13:30:34,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2006 states. [2020-09-25 13:30:34,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2006 states to 2006 states and 2404 transitions. [2020-09-25 13:30:34,853 INFO L78 Accepts]: Start accepts. Automaton has 2006 states and 2404 transitions. Word has length 185 [2020-09-25 13:30:34,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:30:34,855 INFO L479 AbstractCegarLoop]: Abstraction has 2006 states and 2404 transitions. [2020-09-25 13:30:34,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:30:34,855 INFO L276 IsEmpty]: Start isEmpty. Operand 2006 states and 2404 transitions. [2020-09-25 13:30:34,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-25 13:30:34,866 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:30:34,867 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:30:34,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:30:34,867 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:30:34,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:30:34,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1218049893, now seen corresponding path program 1 times [2020-09-25 13:30:34,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:30:34,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024419026] [2020-09-25 13:30:34,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:30:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:30:34,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:35,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:35,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:36,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:36,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:36,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:39,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:39,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:39,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:30:39,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-09-25 13:30:39,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 13:30:39,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 13:30:39,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:30:39,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:30:39,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:30:39,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-09-25 13:30:39,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-25 13:30:39,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:30:40,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:30:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:30:40,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:40,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:30:40,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:30:40,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:30:40,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 13:30:40,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:30:40,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:30:40,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:30:40,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:30:40,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:30:40,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:30:40,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 13:30:40,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:30:40,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:40,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:30:40,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 13:30:40,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:30:40,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 13:30:40,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:30:40,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:30:40,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:30:40,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:30:40,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 13:30:40,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:30:40,238 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 39 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:30:40,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024419026] [2020-09-25 13:30:40,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:30:40,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 13:30:40,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540664432] [2020-09-25 13:30:40,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:30:40,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:30:40,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:30:40,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:30:40,243 INFO L87 Difference]: Start difference. First operand 2006 states and 2404 transitions. Second operand 5 states. [2020-09-25 13:30:41,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:30:41,859 INFO L93 Difference]: Finished difference Result 2899 states and 3471 transitions. [2020-09-25 13:30:41,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 13:30:41,860 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 191 [2020-09-25 13:30:41,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:30:41,881 INFO L225 Difference]: With dead ends: 2899 [2020-09-25 13:30:41,881 INFO L226 Difference]: Without dead ends: 2897 [2020-09-25 13:30:41,883 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:30:41,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2897 states. [2020-09-25 13:30:41,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2897 to 2300. [2020-09-25 13:30:41,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2300 states. [2020-09-25 13:30:41,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2300 states to 2300 states and 2805 transitions. [2020-09-25 13:30:41,995 INFO L78 Accepts]: Start accepts. Automaton has 2300 states and 2805 transitions. Word has length 191 [2020-09-25 13:30:41,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:30:41,996 INFO L479 AbstractCegarLoop]: Abstraction has 2300 states and 2805 transitions. [2020-09-25 13:30:41,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:30:41,996 INFO L276 IsEmpty]: Start isEmpty. Operand 2300 states and 2805 transitions. [2020-09-25 13:30:42,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-09-25 13:30:42,010 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:30:42,010 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:30:42,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:30:42,011 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:30:42,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:30:42,011 INFO L82 PathProgramCache]: Analyzing trace with hash 532164668, now seen corresponding path program 1 times [2020-09-25 13:30:42,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:30:42,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [837807639] [2020-09-25 13:30:42,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:30:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:30:42,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:42,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:42,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:42,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:43,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:44,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:45,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:45,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:45,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:47,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:30:47,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-09-25 13:30:47,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 13:30:47,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 13:30:47,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:30:47,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:30:47,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 13:30:47,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 13:30:47,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-09-25 13:30:47,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:30:48,003 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 42 [2020-09-25 13:30:48,217 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 46 [2020-09-25 13:30:48,528 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 48 [2020-09-25 13:30:48,879 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2020-09-25 13:30:49,275 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 46 [2020-09-25 13:30:49,617 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 46 [2020-09-25 13:30:49,935 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 42 [2020-09-25 13:30:50,233 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 40 [2020-09-25 13:30:50,540 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 37 [2020-09-25 13:30:50,779 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 32 [2020-09-25 13:30:51,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:30:51,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:30:51,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:51,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:30:51,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:30:51,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:30:51,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 13:30:51,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:30:51,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:30:51,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:30:51,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:30:51,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:30:51,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:30:51,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 13:30:51,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:30:51,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:51,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:51,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:30:51,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 13:30:51,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:30:51,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 13:30:51,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:30:51,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:30:51,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:30:51,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:30:51,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:30:51,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:30:51,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-25 13:30:51,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:30:51,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:51,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:51,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:30:51,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 13:30:51,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:30:51,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 13:30:51,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:30:51,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:30:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:30:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:30:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 13:30:51,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:30:51,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-25 13:30:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:30:51,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:30:51,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:30:51,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 13:30:51,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:30:51,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 13:30:51,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:30:51,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:30:51,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:30:51,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:30:51,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 13:30:51,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1