/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:47:27,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:47:27,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:47:27,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:47:27,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:47:27,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:47:27,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:47:27,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:47:27,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:47:27,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:47:27,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:47:27,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:47:27,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:47:27,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:47:27,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:47:27,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:47:27,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:47:27,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:47:27,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:47:27,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:47:27,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:47:27,599 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:47:27,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:47:27,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:47:27,613 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:47:27,614 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:47:27,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:47:27,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:47:27,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:47:27,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:47:27,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:47:27,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:47:27,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:47:27,621 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:47:27,623 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:47:27,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:47:27,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:47:27,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:47:27,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:47:27,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:47:27,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:47:27,628 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 14:47:27,675 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:47:27,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:47:27,678 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:47:27,678 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:47:27,678 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:47:27,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:47:27,679 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:47:27,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:47:27,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:47:27,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:47:27,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:47:27,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:47:27,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:47:27,682 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:47:27,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:47:27,682 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:47:27,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:47:27,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:47:27,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:47:27,683 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:47:27,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:47:27,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:47:27,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:47:27,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:47:27,684 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:47:27,684 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:47:27,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:47:27,685 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:47:27,685 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:47:27,685 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:47:28,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:47:28,183 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:47:28,188 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:47:28,189 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:47:28,190 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:47:28,191 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-09-25 14:47:28,298 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0671d5f3f/7ac9240b61814489bca83908509460d9/FLAG61a673572 [2020-09-25 14:47:28,881 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:47:28,882 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-09-25 14:47:28,893 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0671d5f3f/7ac9240b61814489bca83908509460d9/FLAG61a673572 [2020-09-25 14:47:29,197 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0671d5f3f/7ac9240b61814489bca83908509460d9 [2020-09-25 14:47:29,211 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:47:29,218 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:47:29,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:47:29,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:47:29,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:47:29,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:47:29" (1/1) ... [2020-09-25 14:47:29,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bac8629 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:29, skipping insertion in model container [2020-09-25 14:47:29,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:47:29" (1/1) ... [2020-09-25 14:47:29,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:47:29,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:47:29,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:47:29,544 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:47:29,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:47:29,609 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:47:29,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:29 WrapperNode [2020-09-25 14:47:29,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:47:29,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:47:29,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:47:29,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:47:29,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:29" (1/1) ... [2020-09-25 14:47:29,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:29" (1/1) ... [2020-09-25 14:47:29,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:29" (1/1) ... [2020-09-25 14:47:29,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:29" (1/1) ... [2020-09-25 14:47:29,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:29" (1/1) ... [2020-09-25 14:47:29,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:29" (1/1) ... [2020-09-25 14:47:29,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:29" (1/1) ... [2020-09-25 14:47:29,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:47:29,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:47:29,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:47:29,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:47:29,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:47:29,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:47:29,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:47:29,835 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 14:47:29,836 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:47:29,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:47:29,836 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 14:47:29,836 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 14:47:29,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 14:47:29,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:47:29,837 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:47:29,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:47:29,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:47:30,464 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:47:30,464 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 14:47:30,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:47:30 BoogieIcfgContainer [2020-09-25 14:47:30,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:47:30,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:47:30,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:47:30,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:47:30,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:47:29" (1/3) ... [2020-09-25 14:47:30,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10728c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:47:30, skipping insertion in model container [2020-09-25 14:47:30,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:29" (2/3) ... [2020-09-25 14:47:30,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10728c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:47:30, skipping insertion in model container [2020-09-25 14:47:30,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:47:30" (3/3) ... [2020-09-25 14:47:30,483 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2020-09-25 14:47:30,493 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:47:30,504 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-09-25 14:47:30,526 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-09-25 14:47:30,562 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:47:30,562 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:47:30,562 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:47:30,563 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:47:30,563 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:47:30,563 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:47:30,563 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:47:30,563 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:47:30,597 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-09-25 14:47:30,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 14:47:30,606 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:47:30,608 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:47:30,609 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:47:30,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:47:30,617 INFO L82 PathProgramCache]: Analyzing trace with hash -2016263875, now seen corresponding path program 1 times [2020-09-25 14:47:30,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:47:30,627 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [306551473] [2020-09-25 14:47:30,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:47:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:30,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:31,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:31,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 14:47:31,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:31,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-09-25 14:47:31,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:31,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:31,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:47:31,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 14:47:31,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:47:31,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:47:31,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:47:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:31,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:31,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:31,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:47:31,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:31,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:47:31,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:31,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:31,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:31,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:31,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:31,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:31,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:47:31,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [306551473] [2020-09-25 14:47:31,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:47:31,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:47:31,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696364048] [2020-09-25 14:47:31,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:47:31,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:47:31,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:47:31,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:47:31,318 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 7 states. [2020-09-25 14:47:32,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:47:32,160 INFO L93 Difference]: Finished difference Result 290 states and 336 transitions. [2020-09-25 14:47:32,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 14:47:32,162 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-09-25 14:47:32,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:47:32,179 INFO L225 Difference]: With dead ends: 290 [2020-09-25 14:47:32,180 INFO L226 Difference]: Without dead ends: 239 [2020-09-25 14:47:32,185 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-09-25 14:47:32,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-09-25 14:47:32,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 187. [2020-09-25 14:47:32,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-09-25 14:47:32,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 190 transitions. [2020-09-25 14:47:32,260 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 190 transitions. Word has length 38 [2020-09-25 14:47:32,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:47:32,261 INFO L479 AbstractCegarLoop]: Abstraction has 187 states and 190 transitions. [2020-09-25 14:47:32,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:47:32,261 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 190 transitions. [2020-09-25 14:47:32,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 14:47:32,263 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:47:32,263 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:47:32,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:47:32,264 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:47:32,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:47:32,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1105206656, now seen corresponding path program 1 times [2020-09-25 14:47:32,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:47:32,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1450881124] [2020-09-25 14:47:32,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:47:32,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:32,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:32,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:32,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 14:47:32,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:32,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-25 14:47:32,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:32,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:32,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:47:32,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 14:47:32,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 14:47:32,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:32,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:47:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:32,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:32,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:32,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:47:32,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:32,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:47:32,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:32,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:32,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:32,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:32,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:32,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:32,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:47:32,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1450881124] [2020-09-25 14:47:32,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:47:32,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 14:47:32,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055531823] [2020-09-25 14:47:32,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 14:47:32,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:47:32,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 14:47:32,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:47:32,618 INFO L87 Difference]: Start difference. First operand 187 states and 190 transitions. Second operand 8 states. [2020-09-25 14:47:32,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:47:32,877 INFO L93 Difference]: Finished difference Result 187 states and 190 transitions. [2020-09-25 14:47:32,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 14:47:32,878 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-09-25 14:47:32,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:47:32,880 INFO L225 Difference]: With dead ends: 187 [2020-09-25 14:47:32,881 INFO L226 Difference]: Without dead ends: 185 [2020-09-25 14:47:32,882 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 14:47:32,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-09-25 14:47:32,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2020-09-25 14:47:32,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-09-25 14:47:32,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 188 transitions. [2020-09-25 14:47:32,899 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 188 transitions. Word has length 43 [2020-09-25 14:47:32,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:47:32,900 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 188 transitions. [2020-09-25 14:47:32,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 14:47:32,900 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 188 transitions. [2020-09-25 14:47:32,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 14:47:32,902 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:47:32,902 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:47:32,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:47:32,903 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:47:32,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:47:32,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1193283001, now seen corresponding path program 1 times [2020-09-25 14:47:32,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:47:32,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749534950] [2020-09-25 14:47:32,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:47:32,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:32,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:33,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:33,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 14:47:33,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:33,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-09-25 14:47:33,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:33,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:33,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:47:33,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 14:47:33,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 14:47:33,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:33,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:47:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:33,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:33,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:33,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:47:33,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:33,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:47:33,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:33,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:33,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:33,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:33,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:33,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:33,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:47:33,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1749534950] [2020-09-25 14:47:33,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:47:33,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:47:33,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984153888] [2020-09-25 14:47:33,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:47:33,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:47:33,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:47:33,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:47:33,191 INFO L87 Difference]: Start difference. First operand 185 states and 188 transitions. Second operand 7 states. [2020-09-25 14:47:33,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:47:33,778 INFO L93 Difference]: Finished difference Result 237 states and 242 transitions. [2020-09-25 14:47:33,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 14:47:33,778 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2020-09-25 14:47:33,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:47:33,781 INFO L225 Difference]: With dead ends: 237 [2020-09-25 14:47:33,781 INFO L226 Difference]: Without dead ends: 235 [2020-09-25 14:47:33,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 14:47:33,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-09-25 14:47:33,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 183. [2020-09-25 14:47:33,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-09-25 14:47:33,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 186 transitions. [2020-09-25 14:47:33,799 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 186 transitions. Word has length 53 [2020-09-25 14:47:33,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:47:33,799 INFO L479 AbstractCegarLoop]: Abstraction has 183 states and 186 transitions. [2020-09-25 14:47:33,800 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:47:33,800 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 186 transitions. [2020-09-25 14:47:33,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 14:47:33,802 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:47:33,802 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:47:33,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:47:33,803 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:47:33,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:47:33,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1236242579, now seen corresponding path program 1 times [2020-09-25 14:47:33,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:47:33,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1600035220] [2020-09-25 14:47:33,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:47:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:33,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:33,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:34,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:34,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 14:47:34,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:47:34,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 452 [2020-09-25 14:47:34,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:34,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:34,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:47:34,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 14:47:34,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 14:47:34,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:47:34,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:47:34,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:34,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:34,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:34,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:47:34,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:34,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:47:34,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:34,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:34,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:34,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:34,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:34,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:34,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:47:34,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1600035220] [2020-09-25 14:47:34,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:47:34,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:47:34,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637685319] [2020-09-25 14:47:34,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:47:34,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:47:34,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:47:34,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:47:34,346 INFO L87 Difference]: Start difference. First operand 183 states and 186 transitions. Second operand 7 states. [2020-09-25 14:47:34,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:47:34,571 INFO L93 Difference]: Finished difference Result 183 states and 186 transitions. [2020-09-25 14:47:34,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:47:34,572 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2020-09-25 14:47:34,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:47:34,574 INFO L225 Difference]: With dead ends: 183 [2020-09-25 14:47:34,574 INFO L226 Difference]: Without dead ends: 181 [2020-09-25 14:47:34,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:47:34,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-09-25 14:47:34,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2020-09-25 14:47:34,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-09-25 14:47:34,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 184 transitions. [2020-09-25 14:47:34,587 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 184 transitions. Word has length 58 [2020-09-25 14:47:34,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:47:34,587 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 184 transitions. [2020-09-25 14:47:34,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:47:34,587 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 184 transitions. [2020-09-25 14:47:34,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 14:47:34,589 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:47:34,589 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:47:34,589 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:47:34,590 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:47:34,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:47:34,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1703094031, now seen corresponding path program 1 times [2020-09-25 14:47:34,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:47:34,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1971019650] [2020-09-25 14:47:34,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:47:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:34,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:34,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:34,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:35,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:35,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 14:47:35,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:47:35,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 452 [2020-09-25 14:47:35,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:35,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:35,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:47:35,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 14:47:35,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 14:47:35,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:35,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:47:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:35,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:35,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:35,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:47:35,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:35,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:47:35,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:35,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:35,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:35,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:35,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:35,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:35,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:47:35,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1971019650] [2020-09-25 14:47:35,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:47:35,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:47:35,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689057789] [2020-09-25 14:47:35,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:47:35,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:47:35,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:47:35,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:47:35,141 INFO L87 Difference]: Start difference. First operand 181 states and 184 transitions. Second operand 7 states. [2020-09-25 14:47:35,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:47:35,811 INFO L93 Difference]: Finished difference Result 305 states and 311 transitions. [2020-09-25 14:47:35,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 14:47:35,811 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-09-25 14:47:35,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:47:35,816 INFO L225 Difference]: With dead ends: 305 [2020-09-25 14:47:35,816 INFO L226 Difference]: Without dead ends: 303 [2020-09-25 14:47:35,817 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-09-25 14:47:35,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-09-25 14:47:35,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 192. [2020-09-25 14:47:35,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-09-25 14:47:35,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 197 transitions. [2020-09-25 14:47:35,841 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 197 transitions. Word has length 64 [2020-09-25 14:47:35,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:47:35,842 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 197 transitions. [2020-09-25 14:47:35,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:47:35,842 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 197 transitions. [2020-09-25 14:47:35,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 14:47:35,844 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:47:35,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:47:35,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 14:47:35,845 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:47:35,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:47:35,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1179531825, now seen corresponding path program 1 times [2020-09-25 14:47:35,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:47:35,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [674101331] [2020-09-25 14:47:35,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:47:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:35,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:35,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:36,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:36,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 14:47:36,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:47:36,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 536 [2020-09-25 14:47:36,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:36,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:36,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:47:36,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 14:47:36,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 14:47:36,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:36,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:47:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:36,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:36,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:36,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:47:36,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:36,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:47:36,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:36,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:36,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:36,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:36,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:36,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:36,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:47:36,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [674101331] [2020-09-25 14:47:36,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:47:36,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:47:36,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783746899] [2020-09-25 14:47:36,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:47:36,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:47:36,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:47:36,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:47:36,531 INFO L87 Difference]: Start difference. First operand 192 states and 197 transitions. Second operand 7 states. [2020-09-25 14:47:37,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:47:37,565 INFO L93 Difference]: Finished difference Result 471 states and 480 transitions. [2020-09-25 14:47:37,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 14:47:37,566 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-25 14:47:37,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:47:37,573 INFO L225 Difference]: With dead ends: 471 [2020-09-25 14:47:37,573 INFO L226 Difference]: Without dead ends: 469 [2020-09-25 14:47:37,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2020-09-25 14:47:37,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-09-25 14:47:37,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 197. [2020-09-25 14:47:37,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-09-25 14:47:37,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 202 transitions. [2020-09-25 14:47:37,586 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 202 transitions. Word has length 69 [2020-09-25 14:47:37,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:47:37,587 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 202 transitions. [2020-09-25 14:47:37,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:47:37,588 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 202 transitions. [2020-09-25 14:47:37,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 14:47:37,594 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:47:37,595 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:47:37,595 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 14:47:37,595 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:47:37,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:47:37,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1472635957, now seen corresponding path program 1 times [2020-09-25 14:47:37,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:47:37,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [422088586] [2020-09-25 14:47:37,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:47:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:37,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:37,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:37,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:37,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:37,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:41,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:41,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 14:47:41,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:47:41,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3923 [2020-09-25 14:47:41,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:41,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:41,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:47:41,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 14:47:41,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 14:47:41,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:41,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:47:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:41,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:41,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:41,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:47:41,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:41,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:47:41,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:41,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:41,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:41,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:41,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:41,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:41,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:47:41,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [422088586] [2020-09-25 14:47:41,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:47:41,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:47:41,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840052671] [2020-09-25 14:47:41,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:47:41,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:47:41,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:47:41,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:47:41,632 INFO L87 Difference]: Start difference. First operand 197 states and 202 transitions. Second operand 7 states. [2020-09-25 14:47:41,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:47:41,945 INFO L93 Difference]: Finished difference Result 197 states and 202 transitions. [2020-09-25 14:47:41,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:47:41,946 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-25 14:47:41,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:47:41,948 INFO L225 Difference]: With dead ends: 197 [2020-09-25 14:47:41,948 INFO L226 Difference]: Without dead ends: 195 [2020-09-25 14:47:41,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:47:41,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-09-25 14:47:41,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2020-09-25 14:47:41,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-25 14:47:41,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 200 transitions. [2020-09-25 14:47:41,957 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 200 transitions. Word has length 69 [2020-09-25 14:47:41,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:47:41,957 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 200 transitions. [2020-09-25 14:47:41,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:47:41,957 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 200 transitions. [2020-09-25 14:47:41,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-25 14:47:41,958 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:47:41,959 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:47:41,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 14:47:41,959 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:47:41,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:47:41,960 INFO L82 PathProgramCache]: Analyzing trace with hash 645172388, now seen corresponding path program 1 times [2020-09-25 14:47:41,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:47:41,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [431438719] [2020-09-25 14:47:41,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:47:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:41,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:42,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:42,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:43,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:43,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 14:47:43,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:47:43,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1561 [2020-09-25 14:47:43,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:43,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:43,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:47:43,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 14:47:43,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 14:47:43,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:43,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:47:43,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:43,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:43,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:43,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:47:43,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:43,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:47:43,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:43,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:43,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:43,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:43,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:43,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:43,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:47:43,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [431438719] [2020-09-25 14:47:43,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:47:43,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:47:43,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553374878] [2020-09-25 14:47:43,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:47:43,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:47:43,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:47:43,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:47:43,662 INFO L87 Difference]: Start difference. First operand 195 states and 200 transitions. Second operand 7 states. [2020-09-25 14:47:44,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:47:44,203 INFO L93 Difference]: Finished difference Result 297 states and 303 transitions. [2020-09-25 14:47:44,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 14:47:44,204 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-09-25 14:47:44,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:47:44,206 INFO L225 Difference]: With dead ends: 297 [2020-09-25 14:47:44,206 INFO L226 Difference]: Without dead ends: 295 [2020-09-25 14:47:44,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-09-25 14:47:44,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-25 14:47:44,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 193. [2020-09-25 14:47:44,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-09-25 14:47:44,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 198 transitions. [2020-09-25 14:47:44,214 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 198 transitions. Word has length 74 [2020-09-25 14:47:44,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:47:44,215 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 198 transitions. [2020-09-25 14:47:44,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:47:44,215 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 198 transitions. [2020-09-25 14:47:44,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-25 14:47:44,216 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:47:44,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:47:44,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 14:47:44,217 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:47:44,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:47:44,217 INFO L82 PathProgramCache]: Analyzing trace with hash -2127372300, now seen corresponding path program 1 times [2020-09-25 14:47:44,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:47:44,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1576781095] [2020-09-25 14:47:44,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:47:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:44,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:44,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:44,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:44,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:45,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:45,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 14:47:45,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:47:45,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1734 [2020-09-25 14:47:45,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:45,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:45,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:47:45,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 14:47:45,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 14:47:45,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:47:46,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:47:46,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:46,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:46,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:46,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:47:46,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:46,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:47:46,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:46,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:46,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:46,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:46,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:46,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:47:46,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:47:46,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1576781095] [2020-09-25 14:47:46,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:47:46,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 14:47:46,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509630573] [2020-09-25 14:47:46,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 14:47:46,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:47:46,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 14:47:46,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:47:46,081 INFO L87 Difference]: Start difference. First operand 193 states and 198 transitions. Second operand 8 states. [2020-09-25 14:47:46,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:47:46,585 INFO L93 Difference]: Finished difference Result 204 states and 209 transitions. [2020-09-25 14:47:46,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 14:47:46,586 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 75 [2020-09-25 14:47:46,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:47:46,588 INFO L225 Difference]: With dead ends: 204 [2020-09-25 14:47:46,588 INFO L226 Difference]: Without dead ends: 202 [2020-09-25 14:47:46,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-09-25 14:47:46,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-09-25 14:47:46,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 191. [2020-09-25 14:47:46,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-25 14:47:46,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 196 transitions. [2020-09-25 14:47:46,601 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 196 transitions. Word has length 75 [2020-09-25 14:47:46,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:47:46,602 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 196 transitions. [2020-09-25 14:47:46,602 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 14:47:46,602 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 196 transitions. [2020-09-25 14:47:46,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-25 14:47:46,604 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:47:46,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:47:46,604 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 14:47:46,605 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:47:46,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:47:46,605 INFO L82 PathProgramCache]: Analyzing trace with hash 2079623045, now seen corresponding path program 1 times [2020-09-25 14:47:46,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:47:46,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1923325296] [2020-09-25 14:47:46,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:47:46,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:46,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:46,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:46,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:46,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:46,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:47,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:48,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:51,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:51,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-25 14:47:51,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 14:47:51,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 14:47:51,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:51,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:51,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:47:51,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 14:47:51,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 14:47:51,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:47:51,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:47:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:51,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:51,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:51,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:47:51,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:51,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:47:51,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:51,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:51,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:51,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:51,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:51,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:47:51,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:47:51,707 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1923325296] [2020-09-25 14:47:51,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:47:51,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:47:51,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957389299] [2020-09-25 14:47:51,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:47:51,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:47:51,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:47:51,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:47:51,709 INFO L87 Difference]: Start difference. First operand 191 states and 196 transitions. Second operand 7 states. [2020-09-25 14:47:52,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:47:52,019 INFO L93 Difference]: Finished difference Result 191 states and 196 transitions. [2020-09-25 14:47:52,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:47:52,020 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 80 [2020-09-25 14:47:52,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:47:52,021 INFO L225 Difference]: With dead ends: 191 [2020-09-25 14:47:52,021 INFO L226 Difference]: Without dead ends: 189 [2020-09-25 14:47:52,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:47:52,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-09-25 14:47:52,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2020-09-25 14:47:52,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-09-25 14:47:52,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 194 transitions. [2020-09-25 14:47:52,030 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 194 transitions. Word has length 80 [2020-09-25 14:47:52,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:47:52,030 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 194 transitions. [2020-09-25 14:47:52,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:47:52,030 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 194 transitions. [2020-09-25 14:47:52,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 14:47:52,031 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:47:52,031 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:47:52,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 14:47:52,032 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:47:52,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:47:52,032 INFO L82 PathProgramCache]: Analyzing trace with hash 462594596, now seen corresponding path program 1 times [2020-09-25 14:47:52,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:47:52,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1150926122] [2020-09-25 14:47:52,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:47:52,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:52,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:52,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:52,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:54,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:54,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 14:47:54,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:47:54,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2133 [2020-09-25 14:47:54,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:54,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:54,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:47:54,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 14:47:54,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 14:47:54,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:47:54,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:47:54,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:54,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:54,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:54,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:47:54,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:54,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:47:54,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:54,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:54,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:54,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:54,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:54,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:54,276 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 14:47:54,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1150926122] [2020-09-25 14:47:54,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:47:54,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 14:47:54,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055862425] [2020-09-25 14:47:54,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 14:47:54,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:47:54,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 14:47:54,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:47:54,279 INFO L87 Difference]: Start difference. First operand 189 states and 194 transitions. Second operand 8 states. [2020-09-25 14:47:55,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:47:55,107 INFO L93 Difference]: Finished difference Result 301 states and 307 transitions. [2020-09-25 14:47:55,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 14:47:55,107 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2020-09-25 14:47:55,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:47:55,109 INFO L225 Difference]: With dead ends: 301 [2020-09-25 14:47:55,109 INFO L226 Difference]: Without dead ends: 299 [2020-09-25 14:47:55,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2020-09-25 14:47:55,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-09-25 14:47:55,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 182. [2020-09-25 14:47:55,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-25 14:47:55,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 187 transitions. [2020-09-25 14:47:55,122 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 187 transitions. Word has length 86 [2020-09-25 14:47:55,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:47:55,123 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 187 transitions. [2020-09-25 14:47:55,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 14:47:55,123 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 187 transitions. [2020-09-25 14:47:55,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 14:47:55,125 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:47:55,125 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 14:47:55,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 14:47:55,126 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:47:55,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:47:55,127 INFO L82 PathProgramCache]: Analyzing trace with hash -748130612, now seen corresponding path program 1 times [2020-09-25 14:47:55,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:47:55,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1951783859] [2020-09-25 14:47:55,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:47:55,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:55,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:55,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:55,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:57,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:57,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 14:47:57,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:47:57,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2220 [2020-09-25 14:47:57,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:57,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:57,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:47:57,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 14:47:57,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 14:47:57,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:47:57,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:47:57,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:57,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:57,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:57,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:47:57,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:57,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:47:57,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:57,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:57,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:57,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:57,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:57,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:57,472 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 14:47:57,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1951783859] [2020-09-25 14:47:57,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:47:57,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 14:47:57,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694582772] [2020-09-25 14:47:57,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 14:47:57,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:47:57,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 14:47:57,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:47:57,474 INFO L87 Difference]: Start difference. First operand 182 states and 187 transitions. Second operand 8 states. [2020-09-25 14:47:57,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:47:57,865 INFO L93 Difference]: Finished difference Result 193 states and 198 transitions. [2020-09-25 14:47:57,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 14:47:57,865 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2020-09-25 14:47:57,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:47:57,867 INFO L225 Difference]: With dead ends: 193 [2020-09-25 14:47:57,867 INFO L226 Difference]: Without dead ends: 191 [2020-09-25 14:47:57,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2020-09-25 14:47:57,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-09-25 14:47:57,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 169. [2020-09-25 14:47:57,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-09-25 14:47:57,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 172 transitions. [2020-09-25 14:47:57,874 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 172 transitions. Word has length 86 [2020-09-25 14:47:57,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:47:57,875 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 172 transitions. [2020-09-25 14:47:57,875 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 14:47:57,875 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 172 transitions. [2020-09-25 14:47:57,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-09-25 14:47:57,876 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:47:57,876 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:47:57,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 14:47:57,876 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:47:57,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:47:57,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1581381328, now seen corresponding path program 1 times [2020-09-25 14:47:57,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:47:57,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1709652795] [2020-09-25 14:47:57,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:47:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:57,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:57,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:58,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:58,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:58,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:58,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:02,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:48:02,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 14:48:02,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:48:02,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 14:48:02,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:48:02,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:48:02,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:48:02,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 14:48:02,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 14:48:02,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:48:02,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:48:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:48:02,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:02,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:48:02,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:48:02,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:48:02,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:48:02,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:48:02,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:48:02,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:48:02,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:48:02,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:48:02,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:48:02,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:48:02,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1709652795] [2020-09-25 14:48:02,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:48:02,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 14:48:02,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325209910] [2020-09-25 14:48:02,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 14:48:02,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:48:02,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 14:48:02,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:48:02,999 INFO L87 Difference]: Start difference. First operand 169 states and 172 transitions. Second operand 8 states. [2020-09-25 14:48:03,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:48:03,482 INFO L93 Difference]: Finished difference Result 180 states and 183 transitions. [2020-09-25 14:48:03,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 14:48:03,483 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 94 [2020-09-25 14:48:03,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:48:03,484 INFO L225 Difference]: With dead ends: 180 [2020-09-25 14:48:03,484 INFO L226 Difference]: Without dead ends: 178 [2020-09-25 14:48:03,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-09-25 14:48:03,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-09-25 14:48:03,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 167. [2020-09-25 14:48:03,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-09-25 14:48:03,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 170 transitions. [2020-09-25 14:48:03,493 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 170 transitions. Word has length 94 [2020-09-25 14:48:03,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:48:03,493 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 170 transitions. [2020-09-25 14:48:03,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 14:48:03,493 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 170 transitions. [2020-09-25 14:48:03,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-25 14:48:03,495 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:48:03,495 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:48:03,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 14:48:03,496 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:48:03,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:48:03,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1952981262, now seen corresponding path program 1 times [2020-09-25 14:48:03,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:48:03,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010697780] [2020-09-25 14:48:03,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:48:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:48:03,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:03,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:03,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:03,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:03,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:03,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:03,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:05,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:08,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:48:08,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-25 14:48:08,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 14:48:08,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 14:48:08,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:48:08,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:48:08,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:48:08,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 14:48:08,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 14:48:08,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:48:08,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:48:08,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:48:08,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:08,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:48:08,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:48:08,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:48:08,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:48:08,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:48:08,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:48:08,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:48:08,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:48:08,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:48:08,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:48:08,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:48:08,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010697780] [2020-09-25 14:48:08,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:48:08,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 14:48:08,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711317262] [2020-09-25 14:48:08,592 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 14:48:08,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:48:08,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 14:48:08,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:48:08,593 INFO L87 Difference]: Start difference. First operand 167 states and 170 transitions. Second operand 8 states. [2020-09-25 14:48:09,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:48:09,162 INFO L93 Difference]: Finished difference Result 207 states and 212 transitions. [2020-09-25 14:48:09,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 14:48:09,163 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2020-09-25 14:48:09,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:48:09,165 INFO L225 Difference]: With dead ends: 207 [2020-09-25 14:48:09,165 INFO L226 Difference]: Without dead ends: 205 [2020-09-25 14:48:09,167 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 14:48:09,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-09-25 14:48:09,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 165. [2020-09-25 14:48:09,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-09-25 14:48:09,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 168 transitions. [2020-09-25 14:48:09,178 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 168 transitions. Word has length 99 [2020-09-25 14:48:09,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:48:09,178 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 168 transitions. [2020-09-25 14:48:09,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 14:48:09,179 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 168 transitions. [2020-09-25 14:48:09,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-09-25 14:48:09,181 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:48:09,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:48:09,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 14:48:09,184 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:48:09,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:48:09,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1977584034, now seen corresponding path program 1 times [2020-09-25 14:48:09,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:48:09,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [378240464] [2020-09-25 14:48:09,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:48:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:48:09,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:09,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:09,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:09,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:09,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:09,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:09,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:10,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:14,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:48:14,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-09-25 14:48:14,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 14:48:14,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 14:48:14,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:48:14,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:48:14,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:48:14,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 14:48:14,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:48:14,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:48:14,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:48:14,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:48:14,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:14,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:48:14,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:48:14,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:48:14,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:48:14,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:48:14,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:48:14,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:48:14,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:48:14,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:48:14,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:48:14,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:48:14,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [378240464] [2020-09-25 14:48:14,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:48:14,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 14:48:14,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975595389] [2020-09-25 14:48:14,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 14:48:14,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:48:14,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 14:48:14,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:48:14,322 INFO L87 Difference]: Start difference. First operand 165 states and 168 transitions. Second operand 8 states. [2020-09-25 14:48:14,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:48:14,844 INFO L93 Difference]: Finished difference Result 181 states and 184 transitions. [2020-09-25 14:48:14,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 14:48:14,845 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 106 [2020-09-25 14:48:14,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:48:14,846 INFO L225 Difference]: With dead ends: 181 [2020-09-25 14:48:14,846 INFO L226 Difference]: Without dead ends: 179 [2020-09-25 14:48:14,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2020-09-25 14:48:14,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-09-25 14:48:14,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 163. [2020-09-25 14:48:14,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-09-25 14:48:14,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 166 transitions. [2020-09-25 14:48:14,855 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 166 transitions. Word has length 106 [2020-09-25 14:48:14,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:48:14,855 INFO L479 AbstractCegarLoop]: Abstraction has 163 states and 166 transitions. [2020-09-25 14:48:14,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 14:48:14,855 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 166 transitions. [2020-09-25 14:48:14,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-25 14:48:14,856 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:48:14,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:48:14,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 14:48:14,857 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:48:14,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:48:14,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1363709155, now seen corresponding path program 1 times [2020-09-25 14:48:14,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:48:14,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1177616161] [2020-09-25 14:48:14,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:48:14,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:48:14,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:14,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:14,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:15,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:15,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:15,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:15,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:15,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:48:17,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking...