/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label34.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:00:42,541 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:00:42,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:00:42,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:00:42,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:00:42,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:00:42,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:00:42,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:00:42,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:00:42,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:00:42,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:00:42,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:00:42,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:00:42,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:00:42,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:00:42,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:00:42,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:00:42,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:00:42,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:00:42,589 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:00:42,594 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:00:42,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:00:42,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:00:42,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:00:42,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:00:42,607 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:00:42,607 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:00:42,609 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:00:42,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:00:42,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:00:42,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:00:42,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:00:42,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:00:42,616 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:00:42,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:00:42,619 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:00:42,619 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:00:42,620 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:00:42,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:00:42,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:00:42,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:00:42,625 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 22:00:42,679 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:00:42,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:00:42,681 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:00:42,681 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:00:42,681 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:00:42,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:00:42,682 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:00:42,682 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:00:42,682 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:00:42,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:00:42,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:00:42,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:00:42,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:00:42,686 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:00:42,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:00:42,686 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:00:42,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:00:42,687 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:00:42,687 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:00:42,687 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:00:42,687 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:00:42,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:00:42,688 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:00:42,688 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:00:42,688 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:00:42,688 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:00:42,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:00:42,689 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:00:42,689 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:00:42,689 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 22:00:43,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:00:43,033 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:00:43,040 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:00:43,042 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:00:43,043 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:00:43,043 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label34.c [2020-10-14 22:00:43,125 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f4d02ec82/6e996bee1aad48ceaf6ba8bedd59c87b/FLAG94adfbf9f [2020-10-14 22:00:43,803 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:00:43,804 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem15_label34.c [2020-10-14 22:00:43,826 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f4d02ec82/6e996bee1aad48ceaf6ba8bedd59c87b/FLAG94adfbf9f [2020-10-14 22:00:44,013 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f4d02ec82/6e996bee1aad48ceaf6ba8bedd59c87b [2020-10-14 22:00:44,027 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:00:44,030 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:00:44,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:00:44,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:00:44,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:00:44,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:00:44" (1/1) ... [2020-10-14 22:00:44,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79d9afb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:44, skipping insertion in model container [2020-10-14 22:00:44,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:00:44" (1/1) ... [2020-10-14 22:00:44,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:00:44,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:00:45,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:00:45,157 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:00:45,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:00:45,476 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:00:45,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:45 WrapperNode [2020-10-14 22:00:45,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:00:45,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:00:45,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:00:45,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:00:45,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:45" (1/1) ... [2020-10-14 22:00:45,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:45" (1/1) ... [2020-10-14 22:00:45,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:45" (1/1) ... [2020-10-14 22:00:45,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:45" (1/1) ... [2020-10-14 22:00:45,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:45" (1/1) ... [2020-10-14 22:00:45,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:45" (1/1) ... [2020-10-14 22:00:45,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:45" (1/1) ... [2020-10-14 22:00:45,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:00:45,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:00:45,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:00:45,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:00:45,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:45" (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 22:00:45,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:00:45,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:00:45,710 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:00:45,710 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:00:45,711 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:00:45,711 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:00:45,711 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:00:45,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:00:45,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:00:45,711 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:00:45,712 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:00:45,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:00:45,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:00:51,537 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:00:51,537 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:00:51,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:00:51 BoogieIcfgContainer [2020-10-14 22:00:51,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:00:51,549 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:00:51,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:00:51,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:00:51,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:00:44" (1/3) ... [2020-10-14 22:00:51,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ae8e83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:00:51, skipping insertion in model container [2020-10-14 22:00:51,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:45" (2/3) ... [2020-10-14 22:00:51,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ae8e83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:00:51, skipping insertion in model container [2020-10-14 22:00:51,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:00:51" (3/3) ... [2020-10-14 22:00:51,559 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem15_label34.c [2020-10-14 22:00:51,574 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:00:51,584 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:00:51,604 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:00:51,642 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:00:51,642 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:00:51,642 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:00:51,643 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:00:51,643 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:00:51,643 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:00:51,643 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:00:51,644 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:00:51,676 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states. [2020-10-14 22:00:51,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-14 22:00:51,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:00:51,685 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:00:51,686 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:00:51,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:00:51,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1117771851, now seen corresponding path program 1 times [2020-10-14 22:00:51,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:00:51,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [457918823] [2020-10-14 22:00:51,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:00:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:51,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:52,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:52,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 22:00:52,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:52,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-10-14 22:00:52,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:52,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:52,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:00:52,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:00:52,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 22:00:52,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:00:52,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:00:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:52,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:52,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:52,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:00:52,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:52,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:00:52,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:52,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:52,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:00:52,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:52,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:00:52,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:00:52,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:00:52,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [457918823] [2020-10-14 22:00:52,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:00:52,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:00:52,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867887001] [2020-10-14 22:00:52,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:00:52,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:00:52,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:00:52,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:00:52,337 INFO L87 Difference]: Start difference. First operand 437 states. Second operand 4 states. [2020-10-14 22:00:58,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:00:58,164 INFO L93 Difference]: Finished difference Result 1199 states and 2164 transitions. [2020-10-14 22:00:58,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:00:58,170 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-14 22:00:58,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:00:58,191 INFO L225 Difference]: With dead ends: 1199 [2020-10-14 22:00:58,191 INFO L226 Difference]: Without dead ends: 697 [2020-10-14 22:00:58,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:00:58,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-10-14 22:00:58,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 691. [2020-10-14 22:00:58,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-10-14 22:00:58,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 1012 transitions. [2020-10-14 22:00:58,309 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 1012 transitions. Word has length 19 [2020-10-14 22:00:58,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:00:58,310 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 1012 transitions. [2020-10-14 22:00:58,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:00:58,310 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 1012 transitions. [2020-10-14 22:00:58,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 22:00:58,315 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:00:58,315 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 22:00:58,316 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:00:58,316 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:00:58,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:00:58,317 INFO L82 PathProgramCache]: Analyzing trace with hash -233527790, now seen corresponding path program 1 times [2020-10-14 22:00:58,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:00:58,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1553336862] [2020-10-14 22:00:58,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:00:58,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:58,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:58,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:00,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:00,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 22:01:00,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:01:00,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1647 [2020-10-14 22:01:00,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:00,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:00,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:01:00,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:01:00,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 22:01:00,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 22:01:00,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:01:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:00,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:00,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:00,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:01:00,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:00,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:01:00,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:00,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:00,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:01:00,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:00,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:01:00,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:01:00,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:01:00,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:00,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:00,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:00,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:01:00,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:00,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-14 22:01:00,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:00,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:00,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:01:00,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:01:00,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 22:01:00,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-14 22:01:00,459 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:01:00,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1553336862] [2020-10-14 22:01:00,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:01:00,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:01:00,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672440205] [2020-10-14 22:01:00,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:01:00,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:01:00,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:01:00,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:01:00,466 INFO L87 Difference]: Start difference. First operand 691 states and 1012 transitions. Second operand 7 states. [2020-10-14 22:01:10,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:01:10,056 INFO L93 Difference]: Finished difference Result 1710 states and 2417 transitions. [2020-10-14 22:01:10,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:01:10,057 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2020-10-14 22:01:10,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:01:10,064 INFO L225 Difference]: With dead ends: 1710 [2020-10-14 22:01:10,065 INFO L226 Difference]: Without dead ends: 1025 [2020-10-14 22:01:10,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:01:10,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2020-10-14 22:01:10,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 1014. [2020-10-14 22:01:10,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1014 states. [2020-10-14 22:01:10,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1367 transitions. [2020-10-14 22:01:10,116 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1367 transitions. Word has length 88 [2020-10-14 22:01:10,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:01:10,116 INFO L479 AbstractCegarLoop]: Abstraction has 1014 states and 1367 transitions. [2020-10-14 22:01:10,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:01:10,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1367 transitions. [2020-10-14 22:01:10,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-14 22:01:10,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:01:10,120 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 22:01:10,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:01:10,121 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:01:10,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:01:10,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1800097533, now seen corresponding path program 1 times [2020-10-14 22:01:10,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:01:10,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [339808412] [2020-10-14 22:01:10,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:01:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:10,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:10,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:10,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:10,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 22:01:10,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:01:10,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 505 [2020-10-14 22:01:10,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:10,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:10,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:01:10,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:01:10,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 22:01:10,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:01:10,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:01:10,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:10,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:10,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:10,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:01:10,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:10,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:01:10,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:10,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:10,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:01:10,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:10,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:01:10,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:01:10,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:01:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:10,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:10,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:10,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:01:10,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:10,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 22:01:10,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:10,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:10,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:01:10,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:01:10,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 22:01:10,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:01:10,939 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:01:10,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [339808412] [2020-10-14 22:01:10,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:01:10,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:01:10,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603034397] [2020-10-14 22:01:10,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:01:10,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:01:10,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:01:10,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:01:10,942 INFO L87 Difference]: Start difference. First operand 1014 states and 1367 transitions. Second operand 7 states. [2020-10-14 22:01:24,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:01:24,586 INFO L93 Difference]: Finished difference Result 2393 states and 3406 transitions. [2020-10-14 22:01:24,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:01:24,588 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2020-10-14 22:01:24,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:01:24,602 INFO L225 Difference]: With dead ends: 2393 [2020-10-14 22:01:24,602 INFO L226 Difference]: Without dead ends: 1692 [2020-10-14 22:01:24,606 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:01:24,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2020-10-14 22:01:24,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1343. [2020-10-14 22:01:24,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1343 states. [2020-10-14 22:01:24,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1343 states to 1343 states and 1740 transitions. [2020-10-14 22:01:24,700 INFO L78 Accepts]: Start accepts. Automaton has 1343 states and 1740 transitions. Word has length 93 [2020-10-14 22:01:24,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:01:24,702 INFO L479 AbstractCegarLoop]: Abstraction has 1343 states and 1740 transitions. [2020-10-14 22:01:24,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:01:24,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1343 states and 1740 transitions. [2020-10-14 22:01:24,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-14 22:01:24,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:01:24,721 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-10-14 22:01:24,721 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:01:24,721 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:01:24,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:01:24,722 INFO L82 PathProgramCache]: Analyzing trace with hash -2025834856, now seen corresponding path program 1 times [2020-10-14 22:01:24,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:01:24,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [547539969] [2020-10-14 22:01:24,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:01:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:24,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:24,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:25,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:26,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:26,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:26,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:29,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:29,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-14 22:01:29,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 22:01:29,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4397 [2020-10-14 22:01:29,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:29,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:29,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:01:29,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:01:29,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-14 22:01:29,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:01:29,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:01:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:29,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:29,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:29,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:01:29,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:29,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:01:29,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:29,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:29,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:01:29,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:29,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:01:29,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:01:29,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:01:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:29,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:29,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:29,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 22:01:29,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:29,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-14 22:01:29,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:29,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:29,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:01:29,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:01:29,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 22:01:29,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:01:29,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 22:01:29,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:29,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:29,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:29,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:01:29,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:29,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-14 22:01:29,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:29,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:29,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:01:29,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:01:29,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 22:01:29,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:29,798 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-14 22:01:29,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [547539969] [2020-10-14 22:01:29,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:01:29,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 22:01:29,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934603529] [2020-10-14 22:01:29,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:01:29,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:01:29,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:01:29,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:01:29,802 INFO L87 Difference]: Start difference. First operand 1343 states and 1740 transitions. Second operand 7 states. [2020-10-14 22:01:37,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:01:37,828 INFO L93 Difference]: Finished difference Result 3728 states and 4957 transitions. [2020-10-14 22:01:37,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:01:37,829 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 186 [2020-10-14 22:01:37,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:01:37,846 INFO L225 Difference]: With dead ends: 3728 [2020-10-14 22:01:37,846 INFO L226 Difference]: Without dead ends: 2391 [2020-10-14 22:01:37,851 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:01:37,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2391 states. [2020-10-14 22:01:37,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2391 to 2291. [2020-10-14 22:01:37,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2291 states. [2020-10-14 22:01:37,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 2818 transitions. [2020-10-14 22:01:37,979 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 2818 transitions. Word has length 186 [2020-10-14 22:01:37,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:01:37,982 INFO L479 AbstractCegarLoop]: Abstraction has 2291 states and 2818 transitions. [2020-10-14 22:01:37,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:01:37,983 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 2818 transitions. [2020-10-14 22:01:37,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-10-14 22:01:37,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:01:37,994 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:01:37,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:01:37,994 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:01:37,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:01:37,995 INFO L82 PathProgramCache]: Analyzing trace with hash -368459252, now seen corresponding path program 1 times [2020-10-14 22:01:37,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:01:37,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [583067422] [2020-10-14 22:01:37,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:01:38,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:38,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:38,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:38,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:42,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:42,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-10-14 22:01:42,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:01:42,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4808 [2020-10-14 22:01:42,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:42,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:42,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:01:42,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:01:42,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 206 [2020-10-14 22:01:42,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:01:42,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:01:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:42,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:42,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:42,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:01:42,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:42,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:01:42,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:42,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:42,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:01:42,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:42,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:01:42,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:01:43,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:01:43,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:43,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:43,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:43,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 22:01:43,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:43,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 355 [2020-10-14 22:01:43,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:43,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:43,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:01:43,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:01:43,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 201 [2020-10-14 22:01:43,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:01:43,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 22:01:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:43,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:43,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:43,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 22:01:43,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:43,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:01:43,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:43,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:43,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:01:43,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-14 22:01:43,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:01:43,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:44,099 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 24 proven. 75 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 22:01:44,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [583067422] [2020-10-14 22:01:44,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:01:44,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:01:44,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828278935] [2020-10-14 22:01:44,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:01:44,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:01:44,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:01:44,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:01:44,104 INFO L87 Difference]: Start difference. First operand 2291 states and 2818 transitions. Second operand 7 states. [2020-10-14 22:01:53,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:01:53,842 INFO L93 Difference]: Finished difference Result 4941 states and 6023 transitions. [2020-10-14 22:01:53,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:01:53,853 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 299 [2020-10-14 22:01:53,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:01:53,869 INFO L225 Difference]: With dead ends: 4941 [2020-10-14 22:01:53,869 INFO L226 Difference]: Without dead ends: 2656 [2020-10-14 22:01:53,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:01:53,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states. [2020-10-14 22:01:53,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 2602. [2020-10-14 22:01:53,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2602 states. [2020-10-14 22:01:53,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2602 states to 2602 states and 3139 transitions. [2020-10-14 22:01:53,953 INFO L78 Accepts]: Start accepts. Automaton has 2602 states and 3139 transitions. Word has length 299 [2020-10-14 22:01:53,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:01:53,954 INFO L479 AbstractCegarLoop]: Abstraction has 2602 states and 3139 transitions. [2020-10-14 22:01:53,954 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:01:53,954 INFO L276 IsEmpty]: Start isEmpty. Operand 2602 states and 3139 transitions. [2020-10-14 22:01:53,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-10-14 22:01:53,960 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:01:53,961 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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] [2020-10-14 22:01:53,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:01:53,961 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:01:53,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:01:53,962 INFO L82 PathProgramCache]: Analyzing trace with hash -585286057, now seen corresponding path program 1 times [2020-10-14 22:01:53,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:01:53,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1022829290] [2020-10-14 22:01:53,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:01:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:54,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:54,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:54,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:54,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:56,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:57,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:57,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 326 [2020-10-14 22:01:57,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:01:57,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3911 [2020-10-14 22:01:57,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:57,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:57,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 22:01:57,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:01:57,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 320 [2020-10-14 22:01:57,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:01:58,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:01:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:58,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:58,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:58,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:01:58,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:58,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:01:58,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:58,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:58,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:01:58,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:58,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:01:58,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:01:58,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:01:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:58,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:58,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:58,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 22:01:58,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:58,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 22:01:58,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:58,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:58,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:01:58,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:01:58,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 22:01:58,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:01:58,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 22:01:58,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:58,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:58,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:58,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:58,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 22:01:58,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:01:58,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 576 [2020-10-14 22:01:58,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:58,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:58,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:01:58,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:58,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-10-14 22:01:58,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:01:59,291 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 8 proven. 107 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 22:01:59,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1022829290] [2020-10-14 22:01:59,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:01:59,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:01:59,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571724702] [2020-10-14 22:01:59,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:01:59,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:01:59,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:01:59,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:01:59,298 INFO L87 Difference]: Start difference. First operand 2602 states and 3139 transitions. Second operand 8 states. [2020-10-14 22:02:12,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:02:12,554 INFO L93 Difference]: Finished difference Result 7423 states and 9322 transitions. [2020-10-14 22:02:12,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 22:02:12,556 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 314 [2020-10-14 22:02:12,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:02:12,582 INFO L225 Difference]: With dead ends: 7423 [2020-10-14 22:02:12,582 INFO L226 Difference]: Without dead ends: 5134 [2020-10-14 22:02:12,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2020-10-14 22:02:12,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5134 states. [2020-10-14 22:02:12,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5134 to 4489. [2020-10-14 22:02:12,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4489 states. [2020-10-14 22:02:12,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4489 states to 4489 states and 5509 transitions. [2020-10-14 22:02:12,721 INFO L78 Accepts]: Start accepts. Automaton has 4489 states and 5509 transitions. Word has length 314 [2020-10-14 22:02:12,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:02:12,723 INFO L479 AbstractCegarLoop]: Abstraction has 4489 states and 5509 transitions. [2020-10-14 22:02:12,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:02:12,723 INFO L276 IsEmpty]: Start isEmpty. Operand 4489 states and 5509 transitions. [2020-10-14 22:02:12,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2020-10-14 22:02:12,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:02:12,731 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:02:12,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:02:12,732 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:02:12,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:02:12,733 INFO L82 PathProgramCache]: Analyzing trace with hash 470533581, now seen corresponding path program 1 times [2020-10-14 22:02:12,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:02:12,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [665785660] [2020-10-14 22:02:12,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:02:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:02:12,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:13,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:15,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:02:15,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 390 [2020-10-14 22:02:15,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:02:15,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2290 [2020-10-14 22:02:15,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:02:15,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:02:15,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:02:15,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 22:02:15,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 22:02:15,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:02:15,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:02:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:02:15,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:15,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:02:15,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:02:15,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:02:15,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:02:15,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:02:15,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:02:15,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:02:15,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:02:15,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:02:15,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-14 22:02:15,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:02:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:02:15,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:15,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:02:15,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 22:02:15,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:02:15,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-10-14 22:02:15,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:02:15,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:02:15,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:02:15,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:02:15,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 269 [2020-10-14 22:02:15,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:02:16,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:02:16,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:02:16,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:16,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:02:16,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 22:02:16,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:02:16,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-14 22:02:16,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:02:16,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:02:16,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:02:16,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:02:16,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:02:16,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:02:16,489 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 106 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 22:02:16,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [665785660] [2020-10-14 22:02:16,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:02:16,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:02:16,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329454867] [2020-10-14 22:02:16,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:02:16,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:02:16,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:02:16,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:02:16,498 INFO L87 Difference]: Start difference. First operand 4489 states and 5509 transitions. Second operand 7 states. [2020-10-14 22:02:30,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:02:30,436 INFO L93 Difference]: Finished difference Result 10940 states and 14008 transitions. [2020-10-14 22:02:30,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:02:30,437 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 378 [2020-10-14 22:02:30,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:02:30,471 INFO L225 Difference]: With dead ends: 10940 [2020-10-14 22:02:30,472 INFO L226 Difference]: Without dead ends: 7073 [2020-10-14 22:02:30,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:02:30,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7073 states. [2020-10-14 22:02:30,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7073 to 6112. [2020-10-14 22:02:30,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6112 states. [2020-10-14 22:02:30,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6112 states to 6112 states and 7354 transitions. [2020-10-14 22:02:30,661 INFO L78 Accepts]: Start accepts. Automaton has 6112 states and 7354 transitions. Word has length 378 [2020-10-14 22:02:30,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:02:30,662 INFO L479 AbstractCegarLoop]: Abstraction has 6112 states and 7354 transitions. [2020-10-14 22:02:30,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:02:30,663 INFO L276 IsEmpty]: Start isEmpty. Operand 6112 states and 7354 transitions. [2020-10-14 22:02:30,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2020-10-14 22:02:30,672 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:02:30,673 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:02:30,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:02:30,674 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:02:30,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:02:30,674 INFO L82 PathProgramCache]: Analyzing trace with hash -584047057, now seen corresponding path program 1 times [2020-10-14 22:02:30,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:02:30,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881994087] [2020-10-14 22:02:30,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:02:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:02:30,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:31,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:33,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:02:33,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 416 [2020-10-14 22:02:33,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:02:33,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3085 [2020-10-14 22:02:33,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:02:33,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:02:33,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:02:33,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 22:02:33,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 22:02:33,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:02:34,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:02:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:02:34,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:34,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:02:34,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:02:34,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:02:34,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:02:34,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:02:34,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:02:34,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:02:34,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:02:34,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:02:34,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:02:34,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:02:34,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:02:34,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:34,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:02:34,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 22:02:34,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:02:34,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 357 [2020-10-14 22:02:34,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:02:34,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:02:34,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:02:34,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:02:34,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 269 [2020-10-14 22:02:34,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:02:34,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:02:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:02:34,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:34,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:02:34,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:02:34,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:02:34,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 22:02:34,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:02:34,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:02:34,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:02:34,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:02:34,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 22:02:34,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:02:35,097 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 22:02:35,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881994087] [2020-10-14 22:02:35,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:02:35,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:02:35,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165276051] [2020-10-14 22:02:35,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:02:35,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:02:35,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:02:35,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:02:35,099 INFO L87 Difference]: Start difference. First operand 6112 states and 7354 transitions. Second operand 7 states. [2020-10-14 22:02:47,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:02:47,173 INFO L93 Difference]: Finished difference Result 14511 states and 17355 transitions. [2020-10-14 22:02:47,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:02:47,175 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 404 [2020-10-14 22:02:47,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:02:47,213 INFO L225 Difference]: With dead ends: 14511 [2020-10-14 22:02:47,213 INFO L226 Difference]: Without dead ends: 8712 [2020-10-14 22:02:47,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:02:47,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8712 states. [2020-10-14 22:02:47,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8712 to 8330. [2020-10-14 22:02:47,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8330 states. [2020-10-14 22:02:47,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8330 states to 8330 states and 9738 transitions. [2020-10-14 22:02:47,413 INFO L78 Accepts]: Start accepts. Automaton has 8330 states and 9738 transitions. Word has length 404 [2020-10-14 22:02:47,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:02:47,414 INFO L479 AbstractCegarLoop]: Abstraction has 8330 states and 9738 transitions. [2020-10-14 22:02:47,414 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:02:47,414 INFO L276 IsEmpty]: Start isEmpty. Operand 8330 states and 9738 transitions. [2020-10-14 22:02:47,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2020-10-14 22:02:47,427 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:02:47,428 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:02:47,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:02:47,428 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:02:47,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:02:47,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1658710775, now seen corresponding path program 1 times [2020-10-14 22:02:47,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:02:47,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1349276231] [2020-10-14 22:02:47,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:02:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:02:47,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:48,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:02:48,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 428 [2020-10-14 22:02:48,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:02:48,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 561 [2020-10-14 22:02:48,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:02:48,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:02:48,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:02:48,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 409 [2020-10-14 22:02:48,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 22:02:48,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:02:48,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:02:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:02:48,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:48,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:02:48,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:02:48,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:02:48,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:02:48,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:02:48,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:02:48,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:02:48,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:02:48,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:02:48,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:02:48,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:02:48,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:02:48,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:48,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:02:48,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:02:48,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:02:48,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 22:02:48,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:02:48,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:02:48,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:02:48,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:02:48,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:02:48,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:02:48,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 22:02:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:02:48,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:48,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:02:48,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:02:48,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:02:48,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 22:02:48,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:02:48,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:02:48,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:02:48,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:02:48,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:02:48,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:02:48,641 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2020-10-14 22:02:48,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1349276231] [2020-10-14 22:02:48,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:02:48,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:02:48,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475998046] [2020-10-14 22:02:48,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:02:48,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:02:48,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:02:48,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:02:48,644 INFO L87 Difference]: Start difference. First operand 8330 states and 9738 transitions. Second operand 5 states. [2020-10-14 22:02:57,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:02:57,723 INFO L93 Difference]: Finished difference Result 18222 states and 22063 transitions. [2020-10-14 22:02:57,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:02:57,726 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 416 [2020-10-14 22:02:57,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:02:57,765 INFO L225 Difference]: With dead ends: 18222 [2020-10-14 22:02:57,765 INFO L226 Difference]: Without dead ends: 10516 [2020-10-14 22:02:57,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:02:57,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10516 states. [2020-10-14 22:02:57,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10516 to 10201. [2020-10-14 22:02:57,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10201 states. [2020-10-14 22:02:58,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10201 states to 10201 states and 12216 transitions. [2020-10-14 22:02:58,014 INFO L78 Accepts]: Start accepts. Automaton has 10201 states and 12216 transitions. Word has length 416 [2020-10-14 22:02:58,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:02:58,016 INFO L479 AbstractCegarLoop]: Abstraction has 10201 states and 12216 transitions. [2020-10-14 22:02:58,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:02:58,016 INFO L276 IsEmpty]: Start isEmpty. Operand 10201 states and 12216 transitions. [2020-10-14 22:02:58,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2020-10-14 22:02:58,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:02:58,033 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:02:58,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:02:58,034 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:02:58,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:02:58,035 INFO L82 PathProgramCache]: Analyzing trace with hash -935857873, now seen corresponding path program 1 times [2020-10-14 22:02:58,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:02:58,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1194414123] [2020-10-14 22:02:58,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:02:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:02:58,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:02:59,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:00,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:03:00,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 554 [2020-10-14 22:03:00,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:03:00,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2743 [2020-10-14 22:03:00,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:03:00,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:03:00,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:03:00,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 409 [2020-10-14 22:03:00,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 22:03:00,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:03:01,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:03:01,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:03:01,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:01,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:03:01,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:03:01,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:03:01,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:03:01,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:03:01,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:03:01,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:03:01,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:03:01,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:03:01,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:03:01,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:03:01,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:03:01,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:01,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:03:01,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:03:01,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:03:01,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 22:03:01,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:03:01,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:03:01,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:03:01,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:03:01,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:03:01,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:03:01,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 22:03:01,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:03:01,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:01,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:03:01,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:03:01,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:03:01,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 22:03:01,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:03:01,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:03:01,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:03:01,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:03:01,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:03:01,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:03:01,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 22:03:01,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:03:01,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:01,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:03:01,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-14 22:03:01,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:03:01,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-14 22:03:01,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:03:01,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:03:01,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:03:01,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:03:01,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 22:03:01,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:03:01,739 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 268 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 22:03:01,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1194414123] [2020-10-14 22:03:01,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:03:01,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:03:01,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978729714] [2020-10-14 22:03:01,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:03:01,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:03:01,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:03:01,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:03:01,742 INFO L87 Difference]: Start difference. First operand 10201 states and 12216 transitions. Second operand 7 states. [2020-10-14 22:03:26,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:03:26,010 INFO L93 Difference]: Finished difference Result 24854 states and 30764 transitions. [2020-10-14 22:03:26,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:03:26,012 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 540 [2020-10-14 22:03:26,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:03:26,049 INFO L225 Difference]: With dead ends: 24854 [2020-10-14 22:03:26,049 INFO L226 Difference]: Without dead ends: 13007 [2020-10-14 22:03:26,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:03:26,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13007 states. [2020-10-14 22:03:26,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13007 to 11462. [2020-10-14 22:03:26,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11462 states. [2020-10-14 22:03:26,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11462 states to 11462 states and 13283 transitions. [2020-10-14 22:03:26,316 INFO L78 Accepts]: Start accepts. Automaton has 11462 states and 13283 transitions. Word has length 540 [2020-10-14 22:03:26,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:03:26,317 INFO L479 AbstractCegarLoop]: Abstraction has 11462 states and 13283 transitions. [2020-10-14 22:03:26,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:03:26,317 INFO L276 IsEmpty]: Start isEmpty. Operand 11462 states and 13283 transitions. [2020-10-14 22:03:26,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2020-10-14 22:03:26,327 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:03:26,329 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-10-14 22:03:26,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:03:26,329 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:03:26,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:03:26,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1103076880, now seen corresponding path program 1 times [2020-10-14 22:03:26,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:03:26,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1161405914] [2020-10-14 22:03:26,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:03:26,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:03:26,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:27,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:28,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:03:28,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 584 [2020-10-14 22:03:28,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:03:28,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2215 [2020-10-14 22:03:28,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:03:28,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:03:28,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:03:28,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 409 [2020-10-14 22:03:28,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-14 22:03:28,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:03:28,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:03:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:03:28,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:28,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:03:28,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:03:28,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:03:28,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:03:28,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:03:28,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:03:28,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:03:28,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:03:28,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:03:28,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:03:28,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:03:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:03:28,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:28,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:03:28,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:03:28,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:03:28,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 22:03:28,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:03:28,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:03:28,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:03:28,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:03:28,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:03:28,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:03:28,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 22:03:28,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:03:28,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:29,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:03:29,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:03:29,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:03:29,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 22:03:29,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:03:29,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:03:29,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:03:29,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:03:29,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:03:29,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:03:29,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 22:03:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:03:29,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:29,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:03:29,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-14 22:03:29,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:03:29,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-14 22:03:29,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:03:29,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:03:29,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:03:29,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:03:29,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 155 [2020-10-14 22:03:29,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:03:29,553 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 300 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 22:03:29,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1161405914] [2020-10-14 22:03:29,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:03:29,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:03:29,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717774515] [2020-10-14 22:03:29,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:03:29,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:03:29,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:03:29,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:03:29,556 INFO L87 Difference]: Start difference. First operand 11462 states and 13283 transitions. Second operand 7 states. [2020-10-14 22:03:38,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:03:38,493 INFO L93 Difference]: Finished difference Result 26034 states and 30554 transitions. [2020-10-14 22:03:38,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:03:38,496 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 570 [2020-10-14 22:03:38,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:03:38,541 INFO L225 Difference]: With dead ends: 26034 [2020-10-14 22:03:38,541 INFO L226 Difference]: Without dead ends: 15194 [2020-10-14 22:03:38,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:03:38,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15194 states. [2020-10-14 22:03:38,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15194 to 13635. [2020-10-14 22:03:38,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13635 states. [2020-10-14 22:03:38,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13635 states to 13635 states and 15835 transitions. [2020-10-14 22:03:38,835 INFO L78 Accepts]: Start accepts. Automaton has 13635 states and 15835 transitions. Word has length 570 [2020-10-14 22:03:38,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:03:38,836 INFO L479 AbstractCegarLoop]: Abstraction has 13635 states and 15835 transitions. [2020-10-14 22:03:38,836 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:03:38,836 INFO L276 IsEmpty]: Start isEmpty. Operand 13635 states and 15835 transitions. [2020-10-14 22:03:38,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 574 [2020-10-14 22:03:38,845 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:03:38,847 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1] [2020-10-14 22:03:38,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:03:38,847 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:03:38,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:03:38,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1615250141, now seen corresponding path program 1 times [2020-10-14 22:03:38,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:03:38,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247245424] [2020-10-14 22:03:38,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:03:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:03:39,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:39,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:40,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:40,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:41,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:42,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:42,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:03:42,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 587 [2020-10-14 22:03:42,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 22:03:42,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3423 [2020-10-14 22:03:42,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:03:42,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:03:42,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:03:42,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 409 [2020-10-14 22:03:42,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-14 22:03:42,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:03:42,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:03:42,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:03:42,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:42,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:03:42,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:03:42,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:03:42,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:03:42,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:03:42,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:03:42,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:03:42,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:03:42,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:03:42,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:03:42,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:03:42,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:03:42,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:42,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:03:42,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:03:42,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:03:42,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 22:03:42,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:03:42,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:03:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:03:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:03:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:03:42,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:03:42,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 22:03:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:03:42,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:42,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:03:42,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:03:42,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:03:42,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 22:03:42,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:03:42,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:03:42,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:03:42,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:03:42,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:03:42,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:03:42,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 22:03:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:03:43,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:43,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:43,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:03:43,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 22:03:43,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:03:43,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-10-14 22:03:43,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:03:43,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:03:43,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:03:43,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:03:43,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 22:03:43,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:03:43,467 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 301 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 22:03:43,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247245424] [2020-10-14 22:03:43,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:03:43,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:03:43,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027031277] [2020-10-14 22:03:43,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:03:43,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:03:43,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:03:43,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:03:43,469 INFO L87 Difference]: Start difference. First operand 13635 states and 15835 transitions. Second operand 7 states. [2020-10-14 22:03:51,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:03:51,622 INFO L93 Difference]: Finished difference Result 34281 states and 40645 transitions. [2020-10-14 22:03:51,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:03:51,624 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 573 [2020-10-14 22:03:51,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:03:51,690 INFO L225 Difference]: With dead ends: 34281 [2020-10-14 22:03:51,691 INFO L226 Difference]: Without dead ends: 21268 [2020-10-14 22:03:51,720 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:03:51,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21268 states. [2020-10-14 22:03:52,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21268 to 20913. [2020-10-14 22:03:52,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20913 states. [2020-10-14 22:03:52,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20913 states to 20913 states and 24938 transitions. [2020-10-14 22:03:52,388 INFO L78 Accepts]: Start accepts. Automaton has 20913 states and 24938 transitions. Word has length 573 [2020-10-14 22:03:52,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:03:52,390 INFO L479 AbstractCegarLoop]: Abstraction has 20913 states and 24938 transitions. [2020-10-14 22:03:52,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:03:52,390 INFO L276 IsEmpty]: Start isEmpty. Operand 20913 states and 24938 transitions. [2020-10-14 22:03:52,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2020-10-14 22:03:52,404 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:03:52,405 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:03:52,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:03:52,407 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:03:52,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:03:52,408 INFO L82 PathProgramCache]: Analyzing trace with hash 296681466, now seen corresponding path program 1 times [2020-10-14 22:03:52,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:03:52,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1605246876] [2020-10-14 22:03:52,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:03:52,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:03:52,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:53,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:03:53,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 595 [2020-10-14 22:03:53,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:03:53,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1109 [2020-10-14 22:03:53,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:03:53,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:03:53,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 22:03:53,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 296 [2020-10-14 22:03:53,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 281 [2020-10-14 22:03:53,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:03:53,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:03:53,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:03:53,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:53,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:03:53,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:03:53,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:03:53,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:03:53,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:03:53,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:03:53,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:03:53,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:03:53,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:03:53,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:03:53,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:03:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:03:53,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:54,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:03:54,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:03:54,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:03:54,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-14 22:03:54,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:03:54,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:03:54,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:03:54,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:03:54,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 281 [2020-10-14 22:03:54,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:03:54,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 22:03:54,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:03:54,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:54,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:03:54,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:03:54,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:03:54,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-10-14 22:03:54,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:03:54,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:03:54,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:03:54,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:03:54,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 22:03:54,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:03:54,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 22:03:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:03:54,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:03:54,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:03:54,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 22:03:54,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:03:54,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-14 22:03:54,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:03:54,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:03:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:03:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:03:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 22:03:54,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:03:55,089 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 410 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 22:03:55,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1605246876] [2020-10-14 22:03:55,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:03:55,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 22:03:55,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232743031] [2020-10-14 22:03:55,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 22:03:55,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:03:55,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 22:03:55,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:03:55,091 INFO L87 Difference]: Start difference. First operand 20913 states and 24938 transitions. Second operand 10 states. [2020-10-14 22:04:05,939 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 37 [2020-10-14 22:04:06,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:04:06,799 INFO L93 Difference]: Finished difference Result 41912 states and 50210 transitions. [2020-10-14 22:04:06,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-14 22:04:06,804 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 581 [2020-10-14 22:04:06,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:04:06,864 INFO L225 Difference]: With dead ends: 41912 [2020-10-14 22:04:06,864 INFO L226 Difference]: Without dead ends: 21621 [2020-10-14 22:04:06,898 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=151, Invalid=551, Unknown=0, NotChecked=0, Total=702 [2020-10-14 22:04:06,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21621 states. [2020-10-14 22:04:07,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21621 to 21563. [2020-10-14 22:04:07,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21563 states. [2020-10-14 22:04:07,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21563 states to 21563 states and 25663 transitions. [2020-10-14 22:04:07,300 INFO L78 Accepts]: Start accepts. Automaton has 21563 states and 25663 transitions. Word has length 581 [2020-10-14 22:04:07,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:04:07,301 INFO L479 AbstractCegarLoop]: Abstraction has 21563 states and 25663 transitions. [2020-10-14 22:04:07,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 22:04:07,302 INFO L276 IsEmpty]: Start isEmpty. Operand 21563 states and 25663 transitions. [2020-10-14 22:04:07,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2020-10-14 22:04:07,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:04:07,313 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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] [2020-10-14 22:04:07,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 22:04:07,313 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:04:07,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:04:07,314 INFO L82 PathProgramCache]: Analyzing trace with hash 775088268, now seen corresponding path program 1 times [2020-10-14 22:04:07,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:04:07,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284916097] [2020-10-14 22:04:07,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:04:07,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:04:07,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:04:07,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:04:09,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:04:09,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 640 [2020-10-14 22:04:09,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:04:09,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1952 [2020-10-14 22:04:09,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:04:09,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:04:09,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:04:09,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 409 [2020-10-14 22:04:09,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 230 [2020-10-14 22:04:09,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:04:09,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:04:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:04:09,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:04:09,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:04:09,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:04:09,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:04:09,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:04:09,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:04:09,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:04:09,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:04:09,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:04:09,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:04:09,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:04:09,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:04:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:04:09,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:04:09,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:04:09,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:04:09,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:04:09,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 22:04:09,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:04:09,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:04:09,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:04:09,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:04:09,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:04:09,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:04:09,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 22:04:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:04:09,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:04:09,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:04:09,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:04:09,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:04:09,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 22:04:09,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:04:09,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:04:09,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:04:09,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:04:09,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:04:09,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:04:09,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 22:04:09,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:04:09,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:04:10,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:04:10,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-14 22:04:10,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:04:10,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-14 22:04:10,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:04:10,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:04:10,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:04:10,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:04:10,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 211 [2020-10-14 22:04:10,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:04:10,431 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 339 proven. 13 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2020-10-14 22:04:10,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284916097] [2020-10-14 22:04:10,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:04:10,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 22:04:10,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255184434] [2020-10-14 22:04:10,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 22:04:10,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:04:10,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 22:04:10,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:04:10,433 INFO L87 Difference]: Start difference. First operand 21563 states and 25663 transitions. Second operand 6 states. [2020-10-14 22:04:23,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:04:23,214 INFO L93 Difference]: Finished difference Result 57056 states and 69111 transitions. [2020-10-14 22:04:23,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 22:04:23,216 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 626 [2020-10-14 22:04:23,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:04:23,312 INFO L225 Difference]: With dead ends: 57056 [2020-10-14 22:04:23,312 INFO L226 Difference]: Without dead ends: 36115 [2020-10-14 22:04:23,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:04:23,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36115 states. [2020-10-14 22:04:23,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36115 to 36064. [2020-10-14 22:04:23,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36064 states. [2020-10-14 22:04:24,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36064 states to 36064 states and 42997 transitions. [2020-10-14 22:04:24,012 INFO L78 Accepts]: Start accepts. Automaton has 36064 states and 42997 transitions. Word has length 626 [2020-10-14 22:04:24,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:04:24,013 INFO L479 AbstractCegarLoop]: Abstraction has 36064 states and 42997 transitions. [2020-10-14 22:04:24,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 22:04:24,014 INFO L276 IsEmpty]: Start isEmpty. Operand 36064 states and 42997 transitions. [2020-10-14 22:04:24,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2020-10-14 22:04:24,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:04:24,029 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-10-14 22:04:24,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 22:04:24,030 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:04:24,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:04:24,030 INFO L82 PathProgramCache]: Analyzing trace with hash -283934163, now seen corresponding path program 1 times [2020-10-14 22:04:24,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:04:24,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1144934165] [2020-10-14 22:04:24,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:04:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:04:24,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:04:24,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:04:27,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:04:27,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 709 [2020-10-14 22:04:27,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:04:27,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3388 [2020-10-14 22:04:27,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:04:27,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:04:27,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:04:27,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 491 [2020-10-14 22:04:27,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 22:04:27,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:04:27,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:04:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:04:27,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:04:27,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:04:27,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:04:27,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:04:27,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:04:27,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:04:27,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:04:27,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:04:27,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:04:27,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:04:27,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:04:27,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:04:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:04:27,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:04:27,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:04:27,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:04:27,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:04:27,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 22:04:27,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:04:27,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:04:27,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:04:27,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:04:27,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:04:27,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:04:28,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 22:04:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:04:28,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:04:28,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:04:28,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-14 22:04:28,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:04:28,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-14 22:04:28,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:04:28,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:04:28,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:04:28,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:04:28,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 188 [2020-10-14 22:04:28,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:04:29,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2020-10-14 22:04:29,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:04:29,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:04:29,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:04:29,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 22:04:29,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:04:29,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 22:04:29,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:04:29,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:04:29,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:04:29,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:04:29,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 22:04:29,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:04:29,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2020-10-14 22:04:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:04:29,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:04:29,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:04:29,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:04:29,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:04:29,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:04:29,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:04:29,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:04:29,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:04:29,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:04:29,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:04:29,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:04:29,440 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 215 proven. 79 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2020-10-14 22:04:29,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1144934165] [2020-10-14 22:04:29,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:04:29,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:04:29,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831044644] [2020-10-14 22:04:29,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:04:29,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:04:29,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:04:29,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:04:29,443 INFO L87 Difference]: Start difference. First operand 36064 states and 42997 transitions. Second operand 7 states.