/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 03:23:38,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 03:23:38,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 03:23:38,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 03:23:38,262 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 03:23:38,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 03:23:38,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 03:23:38,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 03:23:38,282 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 03:23:38,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 03:23:38,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 03:23:38,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 03:23:38,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 03:23:38,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 03:23:38,293 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 03:23:38,295 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 03:23:38,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 03:23:38,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 03:23:38,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 03:23:38,306 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 03:23:38,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 03:23:38,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 03:23:38,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 03:23:38,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 03:23:38,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 03:23:38,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 03:23:38,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 03:23:38,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 03:23:38,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 03:23:38,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 03:23:38,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 03:23:38,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 03:23:38,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 03:23:38,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 03:23:38,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 03:23:38,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 03:23:38,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 03:23:38,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 03:23:38,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 03:23:38,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 03:23:38,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 03:23:38,330 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 03:23:38,373 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 03:23:38,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 03:23:38,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 03:23:38,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 03:23:38,376 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 03:23:38,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 03:23:38,377 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 03:23:38,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 03:23:38,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 03:23:38,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 03:23:38,379 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 03:23:38,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 03:23:38,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 03:23:38,380 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 03:23:38,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 03:23:38,380 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 03:23:38,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 03:23:38,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 03:23:38,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 03:23:38,381 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 03:23:38,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 03:23:38,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 03:23:38,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 03:23:38,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 03:23:38,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 03:23:38,382 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 03:23:38,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 03:23:38,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 03:23:38,383 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 03:23:38,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 03:23:38,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 03:23:38,741 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 03:23:38,750 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 03:23:38,753 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 03:23:38,753 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 03:23:38,754 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-15 03:23:38,813 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1a0c23f39/c9f627e7fe9f4ca180f6730bcb63a986/FLAGba22d57ed [2020-10-15 03:23:39,516 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 03:23:39,517 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-15 03:23:39,549 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1a0c23f39/c9f627e7fe9f4ca180f6730bcb63a986/FLAGba22d57ed [2020-10-15 03:23:39,612 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1a0c23f39/c9f627e7fe9f4ca180f6730bcb63a986 [2020-10-15 03:23:39,623 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 03:23:39,625 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 03:23:39,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 03:23:39,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 03:23:39,632 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 03:23:39,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:23:39" (1/1) ... [2020-10-15 03:23:39,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a250be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:39, skipping insertion in model container [2020-10-15 03:23:39,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:23:39" (1/1) ... [2020-10-15 03:23:39,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 03:23:39,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 03:23:40,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:23:40,998 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 03:23:41,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:23:41,398 INFO L208 MainTranslator]: Completed translation [2020-10-15 03:23:41,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:41 WrapperNode [2020-10-15 03:23:41,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 03:23:41,401 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 03:23:41,401 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 03:23:41,401 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 03:23:41,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:41" (1/1) ... [2020-10-15 03:23:41,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:41" (1/1) ... [2020-10-15 03:23:41,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:41" (1/1) ... [2020-10-15 03:23:41,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:41" (1/1) ... [2020-10-15 03:23:41,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:41" (1/1) ... [2020-10-15 03:23:41,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:41" (1/1) ... [2020-10-15 03:23:41,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:41" (1/1) ... [2020-10-15 03:23:41,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 03:23:41,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 03:23:41,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 03:23:41,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 03:23:41,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 03:23:41,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 03:23:41,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 03:23:41,689 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 03:23:41,689 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 03:23:41,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 03:23:41,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 03:23:41,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 03:23:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 03:23:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 03:23:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 03:23:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 03:23:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 03:23:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 03:23:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 03:23:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 03:23:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 03:23:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 03:23:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-15 03:23:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 03:23:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 03:23:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 03:23:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 03:23:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 03:23:44,791 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 03:23:44,792 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 03:23:44,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:23:44 BoogieIcfgContainer [2020-10-15 03:23:44,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 03:23:44,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 03:23:44,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 03:23:44,812 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 03:23:44,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:23:39" (1/3) ... [2020-10-15 03:23:44,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165e241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:23:44, skipping insertion in model container [2020-10-15 03:23:44,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:41" (2/3) ... [2020-10-15 03:23:44,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165e241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:23:44, skipping insertion in model container [2020-10-15 03:23:44,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:23:44" (3/3) ... [2020-10-15 03:23:44,817 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-15 03:23:44,827 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 03:23:44,838 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-10-15 03:23:44,853 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-10-15 03:23:44,884 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 03:23:44,884 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 03:23:44,884 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 03:23:44,884 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 03:23:44,884 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 03:23:44,885 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 03:23:44,885 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 03:23:44,885 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 03:23:44,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states. [2020-10-15 03:23:45,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-15 03:23:45,020 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:23:45,022 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] [2020-10-15 03:23:45,023 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:23:45,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:23:45,030 INFO L82 PathProgramCache]: Analyzing trace with hash 10263618, now seen corresponding path program 1 times [2020-10-15 03:23:45,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:23:45,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [460010023] [2020-10-15 03:23:45,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:23:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:45,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:45,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:45,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:46,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:46,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:47,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:48,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:48,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:50,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:50,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:50,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 03:23:50,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:23:50,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-15 03:23:50,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:50,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:50,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:23:50,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 03:23:50,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-15 03:23:50,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 03:23:51,189 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:23:51,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:23:51,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:23:51,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:23:51,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:23:51,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:23:51,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:23:51,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-15 03:23:51,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:23:51,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:23:51,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:23:51,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:23:51,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:23:51,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:23:51,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:23:51,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [460010023] [2020-10-15 03:23:51,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:23:51,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:23:51,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816917398] [2020-10-15 03:23:51,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:23:51,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:23:51,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:23:51,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:23:51,319 INFO L87 Difference]: Start difference. First operand 1116 states. Second operand 6 states. [2020-10-15 03:23:52,141 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 302 [2020-10-15 03:24:02,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:24:02,230 INFO L93 Difference]: Finished difference Result 2297 states and 3938 transitions. [2020-10-15 03:24:02,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 03:24:02,232 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2020-10-15 03:24:02,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:24:02,268 INFO L225 Difference]: With dead ends: 2297 [2020-10-15 03:24:02,268 INFO L226 Difference]: Without dead ends: 2183 [2020-10-15 03:24:02,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-15 03:24:02,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2183 states. [2020-10-15 03:24:02,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2183 to 1827. [2020-10-15 03:24:02,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1827 states. [2020-10-15 03:24:02,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1827 states to 1827 states and 2440 transitions. [2020-10-15 03:24:02,431 INFO L78 Accepts]: Start accepts. Automaton has 1827 states and 2440 transitions. Word has length 76 [2020-10-15 03:24:02,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:24:02,432 INFO L479 AbstractCegarLoop]: Abstraction has 1827 states and 2440 transitions. [2020-10-15 03:24:02,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:24:02,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1827 states and 2440 transitions. [2020-10-15 03:24:02,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-15 03:24:02,439 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:24:02,439 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] [2020-10-15 03:24:02,440 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 03:24:02,440 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:24:02,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:24:02,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1586437634, now seen corresponding path program 1 times [2020-10-15 03:24:02,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:24:02,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1607099592] [2020-10-15 03:24:02,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:24:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:02,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:02,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:02,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:02,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:03,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:03,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:03,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:06,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:07,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:07,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:07,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 03:24:07,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:24:07,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-15 03:24:07,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:07,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:07,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 03:24:07,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:24:07,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 03:24:07,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 03:24:08,291 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:24:08,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:24:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:08,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:08,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:08,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:24:08,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:24:08,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 03:24:08,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:08,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:08,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:24:08,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:24:08,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:24:08,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:24:08,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:24:08,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1607099592] [2020-10-15 03:24:08,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:24:08,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 03:24:08,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231191745] [2020-10-15 03:24:08,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 03:24:08,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:24:08,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 03:24:08,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 03:24:08,362 INFO L87 Difference]: Start difference. First operand 1827 states and 2440 transitions. Second operand 10 states. [2020-10-15 03:24:08,921 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 312 [2020-10-15 03:24:17,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:24:17,769 INFO L93 Difference]: Finished difference Result 4542 states and 6363 transitions. [2020-10-15 03:24:17,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 03:24:17,770 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 76 [2020-10-15 03:24:17,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:24:17,793 INFO L225 Difference]: With dead ends: 4542 [2020-10-15 03:24:17,793 INFO L226 Difference]: Without dead ends: 4284 [2020-10-15 03:24:17,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2020-10-15 03:24:17,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4284 states. [2020-10-15 03:24:17,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4284 to 2857. [2020-10-15 03:24:17,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2857 states. [2020-10-15 03:24:17,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2857 states to 2857 states and 3939 transitions. [2020-10-15 03:24:17,950 INFO L78 Accepts]: Start accepts. Automaton has 2857 states and 3939 transitions. Word has length 76 [2020-10-15 03:24:17,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:24:17,952 INFO L479 AbstractCegarLoop]: Abstraction has 2857 states and 3939 transitions. [2020-10-15 03:24:17,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 03:24:17,953 INFO L276 IsEmpty]: Start isEmpty. Operand 2857 states and 3939 transitions. [2020-10-15 03:24:17,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-15 03:24:17,959 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:24:17,959 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, 1, 1] [2020-10-15 03:24:17,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 03:24:17,960 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:24:17,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:24:17,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1790375845, now seen corresponding path program 1 times [2020-10-15 03:24:17,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:24:17,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [130783781] [2020-10-15 03:24:17,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:24:18,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:18,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:18,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:18,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:18,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:18,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:19,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:23,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:23,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 03:24:23,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 03:24:23,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-15 03:24:23,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:23,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:23,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:24:23,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:24:23,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-15 03:24:23,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:24:23,546 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:24:23,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:24:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:23,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:23,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:23,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:24:23,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:24:23,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-15 03:24:23,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:23,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:24:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:24:23,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:24:23,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:24:23,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:24:23,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [130783781] [2020-10-15 03:24:23,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:24:23,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:24:23,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239062771] [2020-10-15 03:24:23,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:24:23,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:24:23,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:24:23,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:24:23,619 INFO L87 Difference]: Start difference. First operand 2857 states and 3939 transitions. Second operand 6 states. [2020-10-15 03:24:24,108 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 309 [2020-10-15 03:24:28,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:24:28,819 INFO L93 Difference]: Finished difference Result 3387 states and 4671 transitions. [2020-10-15 03:24:28,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:24:28,820 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2020-10-15 03:24:28,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:24:28,829 INFO L225 Difference]: With dead ends: 3387 [2020-10-15 03:24:28,830 INFO L226 Difference]: Without dead ends: 1994 [2020-10-15 03:24:28,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:24:28,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2020-10-15 03:24:28,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1707. [2020-10-15 03:24:28,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2020-10-15 03:24:28,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 2345 transitions. [2020-10-15 03:24:28,906 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 2345 transitions. Word has length 76 [2020-10-15 03:24:28,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:24:28,907 INFO L479 AbstractCegarLoop]: Abstraction has 1707 states and 2345 transitions. [2020-10-15 03:24:28,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:24:28,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 2345 transitions. [2020-10-15 03:24:28,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-15 03:24:28,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:24:28,911 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] [2020-10-15 03:24:28,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 03:24:28,912 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:24:28,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:24:28,912 INFO L82 PathProgramCache]: Analyzing trace with hash -832987743, now seen corresponding path program 1 times [2020-10-15 03:24:28,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:24:28,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1069116527] [2020-10-15 03:24:28,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:24:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:28,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:29,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:29,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:29,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:29,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:29,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:31,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:31,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:32,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:32,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:33,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:33,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:33,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 03:24:33,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 03:24:33,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-15 03:24:33,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:33,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:33,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:24:33,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:24:33,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-15 03:24:33,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:24:34,643 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:24:34,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:24:34,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:34,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:34,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:34,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:24:34,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:24:34,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 03:24:34,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:34,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:34,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:24:34,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:24:34,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:24:34,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:24:34,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:24:34,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1069116527] [2020-10-15 03:24:34,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:24:34,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:24:34,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690966740] [2020-10-15 03:24:34,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:24:34,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:24:34,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:24:34,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:24:34,776 INFO L87 Difference]: Start difference. First operand 1707 states and 2345 transitions. Second operand 6 states. [2020-10-15 03:24:35,294 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-15 03:24:39,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:24:39,399 INFO L93 Difference]: Finished difference Result 2476 states and 3448 transitions. [2020-10-15 03:24:39,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:24:39,400 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2020-10-15 03:24:39,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:24:39,410 INFO L225 Difference]: With dead ends: 2476 [2020-10-15 03:24:39,410 INFO L226 Difference]: Without dead ends: 1643 [2020-10-15 03:24:39,414 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:24:39,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2020-10-15 03:24:39,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1643. [2020-10-15 03:24:39,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1643 states. [2020-10-15 03:24:39,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1643 states to 1643 states and 2267 transitions. [2020-10-15 03:24:39,488 INFO L78 Accepts]: Start accepts. Automaton has 1643 states and 2267 transitions. Word has length 76 [2020-10-15 03:24:39,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:24:39,488 INFO L479 AbstractCegarLoop]: Abstraction has 1643 states and 2267 transitions. [2020-10-15 03:24:39,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:24:39,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1643 states and 2267 transitions. [2020-10-15 03:24:39,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-15 03:24:39,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:24:39,493 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] [2020-10-15 03:24:39,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 03:24:39,493 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:24:39,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:24:39,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1634931632, now seen corresponding path program 1 times [2020-10-15 03:24:39,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:24:39,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2085594495] [2020-10-15 03:24:39,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:24:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:39,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:39,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:39,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:39,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:39,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:42,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:42,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:42,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:42,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:43,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:44,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:44,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:44,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:44,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 03:24:44,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 03:24:44,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 03:24:44,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:44,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:44,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:24:44,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:24:44,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-15 03:24:44,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:45,061 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:24:45,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:24:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:45,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:45,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:45,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:24:45,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:24:45,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 03:24:45,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:45,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:45,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:24:45,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:24:45,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:24:45,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:45,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:24:45,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2085594495] [2020-10-15 03:24:45,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:24:45,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:24:45,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921838426] [2020-10-15 03:24:45,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:24:45,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:24:45,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:24:45,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:24:45,134 INFO L87 Difference]: Start difference. First operand 1643 states and 2267 transitions. Second operand 6 states. [2020-10-15 03:24:45,671 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-15 03:24:48,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:24:48,342 INFO L93 Difference]: Finished difference Result 2128 states and 2955 transitions. [2020-10-15 03:24:48,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:24:48,343 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2020-10-15 03:24:48,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:24:48,350 INFO L225 Difference]: With dead ends: 2128 [2020-10-15 03:24:48,351 INFO L226 Difference]: Without dead ends: 1243 [2020-10-15 03:24:48,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:24:48,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2020-10-15 03:24:48,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 1243. [2020-10-15 03:24:48,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1243 states. [2020-10-15 03:24:48,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1735 transitions. [2020-10-15 03:24:48,420 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1735 transitions. Word has length 76 [2020-10-15 03:24:48,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:24:48,421 INFO L479 AbstractCegarLoop]: Abstraction has 1243 states and 1735 transitions. [2020-10-15 03:24:48,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:24:48,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1735 transitions. [2020-10-15 03:24:48,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-15 03:24:48,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:24:48,424 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] [2020-10-15 03:24:48,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 03:24:48,424 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:24:48,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:24:48,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1606064226, now seen corresponding path program 1 times [2020-10-15 03:24:48,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:24:48,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1418519257] [2020-10-15 03:24:48,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:24:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:48,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:48,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:48,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:48,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:50,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:50,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:50,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:50,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:50,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:51,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:51,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:51,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:51,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:51,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:52,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:52,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:52,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:53,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:53,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-15 03:24:53,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-15 03:24:53,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 03:24:53,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:53,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:53,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:24:53,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:24:53,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-15 03:24:53,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:54,123 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:24:54,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:24:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:54,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:54,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:24:54,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:24:54,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:24:54,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 03:24:54,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:24:54,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:24:54,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:24:54,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:24:54,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:24:54,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:24:54,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:24:54,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1418519257] [2020-10-15 03:24:54,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:24:54,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:24:54,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557832047] [2020-10-15 03:24:54,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:24:54,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:24:54,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:24:54,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:24:54,189 INFO L87 Difference]: Start difference. First operand 1243 states and 1735 transitions. Second operand 8 states. [2020-10-15 03:24:54,807 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-15 03:24:58,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:24:58,326 INFO L93 Difference]: Finished difference Result 2983 states and 4277 transitions. [2020-10-15 03:24:58,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:24:58,327 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 77 [2020-10-15 03:24:58,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:24:58,338 INFO L225 Difference]: With dead ends: 2983 [2020-10-15 03:24:58,338 INFO L226 Difference]: Without dead ends: 2569 [2020-10-15 03:24:58,340 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:24:58,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2569 states. [2020-10-15 03:24:58,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2569 to 1233. [2020-10-15 03:24:58,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1233 states. [2020-10-15 03:24:58,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1233 states to 1233 states and 1721 transitions. [2020-10-15 03:24:58,429 INFO L78 Accepts]: Start accepts. Automaton has 1233 states and 1721 transitions. Word has length 77 [2020-10-15 03:24:58,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:24:58,429 INFO L479 AbstractCegarLoop]: Abstraction has 1233 states and 1721 transitions. [2020-10-15 03:24:58,430 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:24:58,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states and 1721 transitions. [2020-10-15 03:24:58,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-15 03:24:58,433 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:24:58,433 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] [2020-10-15 03:24:58,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 03:24:58,433 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:24:58,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:24:58,434 INFO L82 PathProgramCache]: Analyzing trace with hash 886070838, now seen corresponding path program 1 times [2020-10-15 03:24:58,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:24:58,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546347822] [2020-10-15 03:24:58,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:24:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:24:58,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:58,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:58,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:58,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:58,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:59,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:24:59,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:00,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:00,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:00,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:01,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:01,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:02,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:03,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:03,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-15 03:25:03,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:25:03,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:25:03,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:03,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:03,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 03:25:03,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:25:03,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 03:25:03,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:03,983 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:25:03,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:25:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:03,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:04,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:04,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:25:04,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:25:04,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 03:25:04,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:04,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:04,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:25:04,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:25:04,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:25:04,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:04,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:25:04,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546347822] [2020-10-15 03:25:04,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:25:04,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:25:04,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123891212] [2020-10-15 03:25:04,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:25:04,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:25:04,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:25:04,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:25:04,022 INFO L87 Difference]: Start difference. First operand 1233 states and 1721 transitions. Second operand 7 states. [2020-10-15 03:25:04,558 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2020-10-15 03:25:08,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:25:08,270 INFO L93 Difference]: Finished difference Result 2959 states and 4245 transitions. [2020-10-15 03:25:08,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:25:08,271 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2020-10-15 03:25:08,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:25:08,281 INFO L225 Difference]: With dead ends: 2959 [2020-10-15 03:25:08,281 INFO L226 Difference]: Without dead ends: 2538 [2020-10-15 03:25:08,283 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:25:08,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2020-10-15 03:25:08,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 1224. [2020-10-15 03:25:08,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1224 states. [2020-10-15 03:25:08,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1708 transitions. [2020-10-15 03:25:08,378 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1708 transitions. Word has length 77 [2020-10-15 03:25:08,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:25:08,378 INFO L479 AbstractCegarLoop]: Abstraction has 1224 states and 1708 transitions. [2020-10-15 03:25:08,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:25:08,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1708 transitions. [2020-10-15 03:25:08,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-15 03:25:08,381 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:25:08,381 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] [2020-10-15 03:25:08,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 03:25:08,382 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:25:08,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:25:08,382 INFO L82 PathProgramCache]: Analyzing trace with hash -380817538, now seen corresponding path program 1 times [2020-10-15 03:25:08,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:25:08,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1889708702] [2020-10-15 03:25:08,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:25:08,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:08,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:08,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:08,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:08,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:08,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:08,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:08,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:09,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:09,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:10,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:10,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:10,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:11,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:11,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:12,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:12,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:12,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:13,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:13,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-15 03:25:13,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-15 03:25:13,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 03:25:13,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:13,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:13,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 03:25:13,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:25:13,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 03:25:13,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:13,965 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:25:13,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:25:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:13,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:13,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:13,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:25:13,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:25:13,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 03:25:13,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:13,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:13,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:25:13,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:25:13,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:25:13,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:14,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:25:14,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1889708702] [2020-10-15 03:25:14,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:25:14,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:25:14,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249617642] [2020-10-15 03:25:14,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:25:14,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:25:14,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:25:14,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:25:14,006 INFO L87 Difference]: Start difference. First operand 1224 states and 1708 transitions. Second operand 7 states. [2020-10-15 03:25:14,547 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2020-10-15 03:25:17,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:25:17,949 INFO L93 Difference]: Finished difference Result 3051 states and 4328 transitions. [2020-10-15 03:25:17,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:25:17,949 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2020-10-15 03:25:17,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:25:17,957 INFO L225 Difference]: With dead ends: 3051 [2020-10-15 03:25:17,958 INFO L226 Difference]: Without dead ends: 2575 [2020-10-15 03:25:17,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:25:17,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2575 states. [2020-10-15 03:25:18,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2575 to 1172. [2020-10-15 03:25:18,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1172 states. [2020-10-15 03:25:18,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1636 transitions. [2020-10-15 03:25:18,057 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1636 transitions. Word has length 78 [2020-10-15 03:25:18,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:25:18,058 INFO L479 AbstractCegarLoop]: Abstraction has 1172 states and 1636 transitions. [2020-10-15 03:25:18,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:25:18,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1636 transitions. [2020-10-15 03:25:18,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-15 03:25:18,061 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:25:18,061 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] [2020-10-15 03:25:18,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 03:25:18,061 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:25:18,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:25:18,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1281785688, now seen corresponding path program 1 times [2020-10-15 03:25:18,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:25:18,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [469728292] [2020-10-15 03:25:18,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:25:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:18,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:18,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:18,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:18,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:18,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:18,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:19,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:19,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:19,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:19,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:19,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:20,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:20,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:21,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:21,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:21,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:21,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:22,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:23,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:23,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:23,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-15 03:25:23,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-15 03:25:23,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-15 03:25:23,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:23,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:23,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:25:23,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:25:23,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 03:25:23,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:23,695 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:25:23,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:25:23,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:23,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:23,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:23,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:25:23,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:25:23,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 03:25:23,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:23,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:23,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:25:23,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:25:23,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:25:23,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:23,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:25:23,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [469728292] [2020-10-15 03:25:23,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:25:23,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:25:23,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207388204] [2020-10-15 03:25:23,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:25:23,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:25:23,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:25:23,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:25:23,739 INFO L87 Difference]: Start difference. First operand 1172 states and 1636 transitions. Second operand 8 states. [2020-10-15 03:25:24,306 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 03:25:28,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:25:28,684 INFO L93 Difference]: Finished difference Result 3681 states and 5325 transitions. [2020-10-15 03:25:28,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:25:28,684 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2020-10-15 03:25:28,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:25:28,695 INFO L225 Difference]: With dead ends: 3681 [2020-10-15 03:25:28,695 INFO L226 Difference]: Without dead ends: 3297 [2020-10-15 03:25:28,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:25:28,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3297 states. [2020-10-15 03:25:28,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3297 to 2404. [2020-10-15 03:25:28,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2404 states. [2020-10-15 03:25:28,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2404 states to 2404 states and 3459 transitions. [2020-10-15 03:25:28,911 INFO L78 Accepts]: Start accepts. Automaton has 2404 states and 3459 transitions. Word has length 78 [2020-10-15 03:25:28,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:25:28,912 INFO L479 AbstractCegarLoop]: Abstraction has 2404 states and 3459 transitions. [2020-10-15 03:25:28,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:25:28,912 INFO L276 IsEmpty]: Start isEmpty. Operand 2404 states and 3459 transitions. [2020-10-15 03:25:28,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-15 03:25:28,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:25:28,916 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] [2020-10-15 03:25:28,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 03:25:28,917 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:25:28,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:25:28,918 INFO L82 PathProgramCache]: Analyzing trace with hash 694595360, now seen corresponding path program 1 times [2020-10-15 03:25:28,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:25:28,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [76140620] [2020-10-15 03:25:28,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:25:28,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:28,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:29,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:29,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:29,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:29,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:29,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:29,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:29,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:30,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:30,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:30,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:30,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:30,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:31,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:31,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:32,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:32,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:33,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:33,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:33,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-15 03:25:33,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-15 03:25:33,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 03:25:33,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:33,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:33,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:25:33,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:25:33,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-15 03:25:33,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:34,512 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:25:34,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:25:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:34,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:34,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:34,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:25:34,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:25:34,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 03:25:34,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:34,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:34,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:25:34,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:25:34,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:25:34,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:34,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:25:34,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [76140620] [2020-10-15 03:25:34,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:25:34,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:25:34,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276446763] [2020-10-15 03:25:34,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:25:34,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:25:34,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:25:34,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:25:34,551 INFO L87 Difference]: Start difference. First operand 2404 states and 3459 transitions. Second operand 8 states. [2020-10-15 03:25:35,112 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 03:25:38,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:25:38,767 INFO L93 Difference]: Finished difference Result 4794 states and 7039 transitions. [2020-10-15 03:25:38,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:25:38,767 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2020-10-15 03:25:38,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:25:38,782 INFO L225 Difference]: With dead ends: 4794 [2020-10-15 03:25:38,783 INFO L226 Difference]: Without dead ends: 4007 [2020-10-15 03:25:38,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:25:38,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4007 states. [2020-10-15 03:25:38,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4007 to 2404. [2020-10-15 03:25:38,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2404 states. [2020-10-15 03:25:38,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2404 states to 2404 states and 3458 transitions. [2020-10-15 03:25:38,976 INFO L78 Accepts]: Start accepts. Automaton has 2404 states and 3458 transitions. Word has length 78 [2020-10-15 03:25:38,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:25:38,977 INFO L479 AbstractCegarLoop]: Abstraction has 2404 states and 3458 transitions. [2020-10-15 03:25:38,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:25:38,977 INFO L276 IsEmpty]: Start isEmpty. Operand 2404 states and 3458 transitions. [2020-10-15 03:25:38,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-15 03:25:38,981 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:25:38,981 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] [2020-10-15 03:25:38,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 03:25:38,981 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:25:38,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:25:38,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1614015587, now seen corresponding path program 1 times [2020-10-15 03:25:38,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:25:38,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [217244293] [2020-10-15 03:25:38,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:25:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:39,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:39,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:39,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:39,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:39,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:39,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:39,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:42,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:44,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:44,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-15 03:25:44,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:25:44,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 03:25:44,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:44,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:44,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 03:25:44,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:25:44,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 03:25:44,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:44,548 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:25:44,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:25:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:44,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:44,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:44,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:25:44,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:25:44,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 03:25:44,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:44,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:44,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:25:44,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:25:44,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:25:44,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:44,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:25:44,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [217244293] [2020-10-15 03:25:44,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:25:44,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:25:44,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139388183] [2020-10-15 03:25:44,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:25:44,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:25:44,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:25:44,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:25:44,588 INFO L87 Difference]: Start difference. First operand 2404 states and 3458 transitions. Second operand 7 states. [2020-10-15 03:25:45,100 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2020-10-15 03:25:48,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:25:48,793 INFO L93 Difference]: Finished difference Result 6205 states and 9056 transitions. [2020-10-15 03:25:48,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:25:48,794 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2020-10-15 03:25:48,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:25:48,806 INFO L225 Difference]: With dead ends: 6205 [2020-10-15 03:25:48,806 INFO L226 Difference]: Without dead ends: 5330 [2020-10-15 03:25:48,811 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:25:48,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5330 states. [2020-10-15 03:25:49,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5330 to 2342. [2020-10-15 03:25:49,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2342 states. [2020-10-15 03:25:49,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2342 states to 2342 states and 3373 transitions. [2020-10-15 03:25:49,060 INFO L78 Accepts]: Start accepts. Automaton has 2342 states and 3373 transitions. Word has length 78 [2020-10-15 03:25:49,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:25:49,060 INFO L479 AbstractCegarLoop]: Abstraction has 2342 states and 3373 transitions. [2020-10-15 03:25:49,061 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:25:49,061 INFO L276 IsEmpty]: Start isEmpty. Operand 2342 states and 3373 transitions. [2020-10-15 03:25:49,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-15 03:25:49,063 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:25:49,063 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] [2020-10-15 03:25:49,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 03:25:49,064 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:25:49,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:25:49,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1474405683, now seen corresponding path program 1 times [2020-10-15 03:25:49,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:25:49,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [330856094] [2020-10-15 03:25:49,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:25:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:49,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:49,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:49,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:49,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:49,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:49,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:49,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:50,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:50,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:50,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:50,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:51,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:51,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:52,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:52,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:53,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:54,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:54,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-15 03:25:54,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 03:25:54,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 03:25:54,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:54,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:54,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:25:54,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:25:54,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-15 03:25:54,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:54,603 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:25:54,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:25:54,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:54,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:54,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:25:54,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:25:54,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:25:54,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 03:25:54,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:25:54,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:25:54,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:25:54,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:25:54,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:25:54,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:25:54,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:25:54,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [330856094] [2020-10-15 03:25:54,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:25:54,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:25:54,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382448187] [2020-10-15 03:25:54,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:25:54,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:25:54,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:25:54,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:25:54,658 INFO L87 Difference]: Start difference. First operand 2342 states and 3373 transitions. Second operand 8 states. [2020-10-15 03:25:55,149 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 308 [2020-10-15 03:25:58,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:25:58,966 INFO L93 Difference]: Finished difference Result 6039 states and 8858 transitions. [2020-10-15 03:25:58,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:25:58,967 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2020-10-15 03:25:58,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:25:58,979 INFO L225 Difference]: With dead ends: 6039 [2020-10-15 03:25:58,979 INFO L226 Difference]: Without dead ends: 5185 [2020-10-15 03:25:58,984 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-15 03:25:58,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5185 states. [2020-10-15 03:25:59,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5185 to 2272. [2020-10-15 03:25:59,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2272 states. [2020-10-15 03:25:59,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2272 states to 2272 states and 3272 transitions. [2020-10-15 03:25:59,254 INFO L78 Accepts]: Start accepts. Automaton has 2272 states and 3272 transitions. Word has length 78 [2020-10-15 03:25:59,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:25:59,255 INFO L479 AbstractCegarLoop]: Abstraction has 2272 states and 3272 transitions. [2020-10-15 03:25:59,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:25:59,255 INFO L276 IsEmpty]: Start isEmpty. Operand 2272 states and 3272 transitions. [2020-10-15 03:25:59,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 03:25:59,258 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:25:59,258 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] [2020-10-15 03:25:59,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 03:25:59,259 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:25:59,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:25:59,259 INFO L82 PathProgramCache]: Analyzing trace with hash 635675827, now seen corresponding path program 1 times [2020-10-15 03:25:59,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:25:59,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1389189712] [2020-10-15 03:25:59,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:25:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:25:59,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:59,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:59,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:59,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:59,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:59,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:25:59,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:00,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:00,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:01,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:03,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:03,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:04,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:04,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 03:26:04,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 03:26:04,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 03:26:04,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:04,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:04,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:26:04,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:26:04,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-15 03:26:04,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:26:04,850 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:26:04,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:26:04,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:04,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:04,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:04,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:26:04,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:26:04,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 03:26:04,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:04,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:04,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:26:04,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:26:04,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:26:04,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:26:04,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:26:04,891 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1389189712] [2020-10-15 03:26:04,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:26:04,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:26:04,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874784434] [2020-10-15 03:26:04,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:26:04,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:26:04,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:26:04,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:26:04,892 INFO L87 Difference]: Start difference. First operand 2272 states and 3272 transitions. Second operand 8 states. [2020-10-15 03:26:05,453 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 03:26:09,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:26:09,441 INFO L93 Difference]: Finished difference Result 3803 states and 5543 transitions. [2020-10-15 03:26:09,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:26:09,441 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-10-15 03:26:09,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:26:09,449 INFO L225 Difference]: With dead ends: 3803 [2020-10-15 03:26:09,449 INFO L226 Difference]: Without dead ends: 3798 [2020-10-15 03:26:09,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:26:09,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3798 states. [2020-10-15 03:26:09,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3798 to 2272. [2020-10-15 03:26:09,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2272 states. [2020-10-15 03:26:09,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2272 states to 2272 states and 3269 transitions. [2020-10-15 03:26:09,723 INFO L78 Accepts]: Start accepts. Automaton has 2272 states and 3269 transitions. Word has length 79 [2020-10-15 03:26:09,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:26:09,724 INFO L479 AbstractCegarLoop]: Abstraction has 2272 states and 3269 transitions. [2020-10-15 03:26:09,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:26:09,724 INFO L276 IsEmpty]: Start isEmpty. Operand 2272 states and 3269 transitions. [2020-10-15 03:26:09,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 03:26:09,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:26:09,727 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] [2020-10-15 03:26:09,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 03:26:09,727 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:26:09,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:26:09,728 INFO L82 PathProgramCache]: Analyzing trace with hash 697196193, now seen corresponding path program 1 times [2020-10-15 03:26:09,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:26:09,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671120911] [2020-10-15 03:26:09,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:26:09,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:09,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:09,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:09,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:10,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:10,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:10,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:10,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:10,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:11,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:11,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:11,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:12,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:13,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:14,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:14,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:14,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 03:26:14,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:26:14,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 03:26:14,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:14,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:14,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:26:14,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:26:14,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 03:26:14,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:26:15,349 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:26:15,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:26:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:15,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:15,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:15,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:26:15,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:26:15,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 03:26:15,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:15,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:15,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:26:15,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:26:15,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:26:15,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:26:15,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:26:15,400 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671120911] [2020-10-15 03:26:15,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:26:15,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:26:15,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796182688] [2020-10-15 03:26:15,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:26:15,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:26:15,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:26:15,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:26:15,402 INFO L87 Difference]: Start difference. First operand 2272 states and 3269 transitions. Second operand 8 states. [2020-10-15 03:26:15,959 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 03:26:19,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:26:19,674 INFO L93 Difference]: Finished difference Result 3491 states and 5027 transitions. [2020-10-15 03:26:19,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:26:19,674 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-10-15 03:26:19,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:26:19,681 INFO L225 Difference]: With dead ends: 3491 [2020-10-15 03:26:19,682 INFO L226 Difference]: Without dead ends: 2925 [2020-10-15 03:26:19,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:26:19,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2020-10-15 03:26:19,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2272. [2020-10-15 03:26:19,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2272 states. [2020-10-15 03:26:19,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2272 states to 2272 states and 3267 transitions. [2020-10-15 03:26:19,958 INFO L78 Accepts]: Start accepts. Automaton has 2272 states and 3267 transitions. Word has length 79 [2020-10-15 03:26:19,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:26:19,958 INFO L479 AbstractCegarLoop]: Abstraction has 2272 states and 3267 transitions. [2020-10-15 03:26:19,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:26:19,958 INFO L276 IsEmpty]: Start isEmpty. Operand 2272 states and 3267 transitions. [2020-10-15 03:26:19,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 03:26:19,961 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:26:19,961 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] [2020-10-15 03:26:19,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 03:26:19,961 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:26:19,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:26:19,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1006986260, now seen corresponding path program 1 times [2020-10-15 03:26:19,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:26:19,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [961082557] [2020-10-15 03:26:19,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:26:20,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:20,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:20,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:20,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:20,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:20,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:21,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:21,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:22,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:22,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:22,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:22,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:25,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:25,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 03:26:25,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 03:26:25,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:26:25,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:25,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:25,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:26:25,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:26:25,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-15 03:26:25,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:26:25,557 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:26:25,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:26:25,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:25,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:25,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:25,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:26:25,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:26:25,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 03:26:25,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:25,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:25,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:26:25,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:26:25,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:26:25,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:26:25,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:26:25,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [961082557] [2020-10-15 03:26:25,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:26:25,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:26:25,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806558780] [2020-10-15 03:26:25,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:26:25,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:26:25,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:26:25,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:26:25,594 INFO L87 Difference]: Start difference. First operand 2272 states and 3267 transitions. Second operand 8 states. [2020-10-15 03:26:26,157 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 03:26:30,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:26:30,217 INFO L93 Difference]: Finished difference Result 4099 states and 5980 transitions. [2020-10-15 03:26:30,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:26:30,218 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-10-15 03:26:30,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:26:30,223 INFO L225 Difference]: With dead ends: 4099 [2020-10-15 03:26:30,223 INFO L226 Difference]: Without dead ends: 3507 [2020-10-15 03:26:30,226 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:26:30,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3507 states. [2020-10-15 03:26:30,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3507 to 2272. [2020-10-15 03:26:30,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2272 states. [2020-10-15 03:26:30,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2272 states to 2272 states and 3266 transitions. [2020-10-15 03:26:30,467 INFO L78 Accepts]: Start accepts. Automaton has 2272 states and 3266 transitions. Word has length 79 [2020-10-15 03:26:30,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:26:30,467 INFO L479 AbstractCegarLoop]: Abstraction has 2272 states and 3266 transitions. [2020-10-15 03:26:30,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:26:30,467 INFO L276 IsEmpty]: Start isEmpty. Operand 2272 states and 3266 transitions. [2020-10-15 03:26:30,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 03:26:30,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:26:30,470 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] [2020-10-15 03:26:30,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 03:26:30,470 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:26:30,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:26:30,470 INFO L82 PathProgramCache]: Analyzing trace with hash -993014694, now seen corresponding path program 1 times [2020-10-15 03:26:30,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:26:30,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [754573567] [2020-10-15 03:26:30,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:26:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:30,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:30,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:30,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:30,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:31,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:31,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:35,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:35,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 03:26:35,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 03:26:35,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-15 03:26:35,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:35,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:35,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:26:35,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:26:35,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-15 03:26:35,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:26:36,078 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:26:36,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:26:36,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:36,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:36,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:36,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:26:36,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:26:36,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 03:26:36,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:36,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:36,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:26:36,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:26:36,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:26:36,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:26:36,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:26:36,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [754573567] [2020-10-15 03:26:36,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:26:36,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:26:36,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820511305] [2020-10-15 03:26:36,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:26:36,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:26:36,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:26:36,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:26:36,132 INFO L87 Difference]: Start difference. First operand 2272 states and 3266 transitions. Second operand 8 states. [2020-10-15 03:26:36,697 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 03:26:40,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:26:40,596 INFO L93 Difference]: Finished difference Result 3803 states and 5536 transitions. [2020-10-15 03:26:40,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:26:40,597 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-10-15 03:26:40,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:26:40,601 INFO L225 Difference]: With dead ends: 3803 [2020-10-15 03:26:40,601 INFO L226 Difference]: Without dead ends: 3798 [2020-10-15 03:26:40,602 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:26:40,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3798 states. [2020-10-15 03:26:40,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3798 to 2272. [2020-10-15 03:26:40,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2272 states. [2020-10-15 03:26:40,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2272 states to 2272 states and 3261 transitions. [2020-10-15 03:26:40,781 INFO L78 Accepts]: Start accepts. Automaton has 2272 states and 3261 transitions. Word has length 79 [2020-10-15 03:26:40,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:26:40,781 INFO L479 AbstractCegarLoop]: Abstraction has 2272 states and 3261 transitions. [2020-10-15 03:26:40,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:26:40,781 INFO L276 IsEmpty]: Start isEmpty. Operand 2272 states and 3261 transitions. [2020-10-15 03:26:40,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 03:26:40,783 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:26:40,783 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] [2020-10-15 03:26:40,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 03:26:40,783 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:26:40,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:26:40,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1343448095, now seen corresponding path program 1 times [2020-10-15 03:26:40,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:26:40,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1078581582] [2020-10-15 03:26:40,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:26:40,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:40,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:40,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:40,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:41,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:41,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:41,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:41,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:41,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:42,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:43,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:43,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:45,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:45,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:45,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 03:26:45,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 03:26:45,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-15 03:26:45,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:45,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:45,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 03:26:45,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:26:45,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-15 03:26:45,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:26:46,345 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:26:46,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:26:46,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:46,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:46,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:46,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:26:46,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:26:46,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 03:26:46,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:46,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:46,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:26:46,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:26:46,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:26:46,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:26:46,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:26:46,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1078581582] [2020-10-15 03:26:46,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:26:46,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:26:46,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868813024] [2020-10-15 03:26:46,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:26:46,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:26:46,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:26:46,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:26:46,381 INFO L87 Difference]: Start difference. First operand 2272 states and 3261 transitions. Second operand 7 states. [2020-10-15 03:26:46,927 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2020-10-15 03:26:51,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:26:51,437 INFO L93 Difference]: Finished difference Result 5317 states and 7685 transitions. [2020-10-15 03:26:51,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:26:51,442 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2020-10-15 03:26:51,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:26:51,447 INFO L225 Difference]: With dead ends: 5317 [2020-10-15 03:26:51,447 INFO L226 Difference]: Without dead ends: 4539 [2020-10-15 03:26:51,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:26:51,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4539 states. [2020-10-15 03:26:51,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4539 to 2046. [2020-10-15 03:26:51,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2046 states. [2020-10-15 03:26:51,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2046 states to 2046 states and 2930 transitions. [2020-10-15 03:26:51,638 INFO L78 Accepts]: Start accepts. Automaton has 2046 states and 2930 transitions. Word has length 79 [2020-10-15 03:26:51,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:26:51,638 INFO L479 AbstractCegarLoop]: Abstraction has 2046 states and 2930 transitions. [2020-10-15 03:26:51,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:26:51,638 INFO L276 IsEmpty]: Start isEmpty. Operand 2046 states and 2930 transitions. [2020-10-15 03:26:51,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 03:26:51,639 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:26:51,639 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] [2020-10-15 03:26:51,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 03:26:51,640 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:26:51,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:26:51,640 INFO L82 PathProgramCache]: Analyzing trace with hash -943670351, now seen corresponding path program 1 times [2020-10-15 03:26:51,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:26:51,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [163531980] [2020-10-15 03:26:51,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:26:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:51,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:51,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:51,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:51,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:52,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:52,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:52,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:52,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:52,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:52,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:53,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:53,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:54,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:55,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:56,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:56,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 03:26:56,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:26:56,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 03:26:56,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:56,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:56,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:26:56,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:26:56,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-15 03:26:56,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:26:57,242 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:26:57,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:26:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:57,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:57,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:57,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:26:57,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:26:57,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 03:26:57,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:57,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:57,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:26:57,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:26:57,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:26:57,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:26:57,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:26:57,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [163531980] [2020-10-15 03:26:57,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:26:57,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:26:57,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973591979] [2020-10-15 03:26:57,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:26:57,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:26:57,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:26:57,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:26:57,289 INFO L87 Difference]: Start difference. First operand 2046 states and 2930 transitions. Second operand 9 states. [2020-10-15 03:26:57,807 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 03:27:01,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:27:01,181 INFO L93 Difference]: Finished difference Result 3437 states and 5043 transitions. [2020-10-15 03:27:01,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 03:27:01,182 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-10-15 03:27:01,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:27:01,185 INFO L225 Difference]: With dead ends: 3437 [2020-10-15 03:27:01,185 INFO L226 Difference]: Without dead ends: 3415 [2020-10-15 03:27:01,186 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-15 03:27:01,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3415 states. [2020-10-15 03:27:01,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3415 to 2044. [2020-10-15 03:27:01,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2044 states. [2020-10-15 03:27:01,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2044 states to 2044 states and 2927 transitions. [2020-10-15 03:27:01,376 INFO L78 Accepts]: Start accepts. Automaton has 2044 states and 2927 transitions. Word has length 79 [2020-10-15 03:27:01,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:27:01,376 INFO L479 AbstractCegarLoop]: Abstraction has 2044 states and 2927 transitions. [2020-10-15 03:27:01,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:27:01,376 INFO L276 IsEmpty]: Start isEmpty. Operand 2044 states and 2927 transitions. [2020-10-15 03:27:01,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-15 03:27:01,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:27:01,378 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] [2020-10-15 03:27:01,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 03:27:01,379 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:27:01,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:27:01,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1533380123, now seen corresponding path program 1 times [2020-10-15 03:27:01,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:27:01,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [434405902] [2020-10-15 03:27:01,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:27:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:01,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:01,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:01,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:01,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:01,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:02,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:02,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:02,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:03,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:03,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:05,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:06,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:06,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-15 03:27:06,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 03:27:06,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-15 03:27:06,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:06,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:06,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:27:06,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:27:06,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-15 03:27:06,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:27:07,114 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:27:07,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:27:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:07,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:07,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:07,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:27:07,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:27:07,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 03:27:07,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:07,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:07,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:27:07,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:27:07,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:27:07,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:27:07,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:27:07,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [434405902] [2020-10-15 03:27:07,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:27:07,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:27:07,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315463603] [2020-10-15 03:27:07,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:27:07,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:27:07,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:27:07,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:27:07,157 INFO L87 Difference]: Start difference. First operand 2044 states and 2927 transitions. Second operand 9 states. [2020-10-15 03:27:07,701 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 314 [2020-10-15 03:27:11,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:27:11,735 INFO L93 Difference]: Finished difference Result 3598 states and 5258 transitions. [2020-10-15 03:27:11,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:27:11,736 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2020-10-15 03:27:11,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:27:11,739 INFO L225 Difference]: With dead ends: 3598 [2020-10-15 03:27:11,739 INFO L226 Difference]: Without dead ends: 2836 [2020-10-15 03:27:11,741 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2020-10-15 03:27:11,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2836 states. [2020-10-15 03:27:11,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2836 to 2020. [2020-10-15 03:27:11,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2020 states. [2020-10-15 03:27:11,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2020 states to 2020 states and 2893 transitions. [2020-10-15 03:27:11,948 INFO L78 Accepts]: Start accepts. Automaton has 2020 states and 2893 transitions. Word has length 80 [2020-10-15 03:27:11,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:27:11,948 INFO L479 AbstractCegarLoop]: Abstraction has 2020 states and 2893 transitions. [2020-10-15 03:27:11,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:27:11,948 INFO L276 IsEmpty]: Start isEmpty. Operand 2020 states and 2893 transitions. [2020-10-15 03:27:11,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-15 03:27:11,950 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:27:11,950 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] [2020-10-15 03:27:11,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 03:27:11,950 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:27:11,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:27:11,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1699725761, now seen corresponding path program 1 times [2020-10-15 03:27:11,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:27:11,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [180067379] [2020-10-15 03:27:11,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:27:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:11,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:12,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:12,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:12,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:12,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:12,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:12,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:13,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:16,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:16,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-15 03:27:16,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:27:16,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 03:27:16,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:16,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:16,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:27:16,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:27:16,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-15 03:27:16,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:27:17,563 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:27:17,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:27:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:17,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:17,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:17,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:27:17,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:27:17,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 03:27:17,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:17,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:17,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:27:17,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:27:17,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:27:17,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:27:17,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:27:17,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [180067379] [2020-10-15 03:27:17,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:27:17,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:27:17,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755961083] [2020-10-15 03:27:17,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:27:17,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:27:17,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:27:17,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:27:17,608 INFO L87 Difference]: Start difference. First operand 2020 states and 2893 transitions. Second operand 8 states. [2020-10-15 03:27:18,170 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 03:27:21,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:27:21,992 INFO L93 Difference]: Finished difference Result 5663 states and 8312 transitions. [2020-10-15 03:27:21,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:27:21,993 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-10-15 03:27:21,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:27:21,998 INFO L225 Difference]: With dead ends: 5663 [2020-10-15 03:27:21,999 INFO L226 Difference]: Without dead ends: 4817 [2020-10-15 03:27:22,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-15 03:27:22,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4817 states. [2020-10-15 03:27:22,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4817 to 1946. [2020-10-15 03:27:22,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1946 states. [2020-10-15 03:27:22,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1946 states to 1946 states and 2797 transitions. [2020-10-15 03:27:22,216 INFO L78 Accepts]: Start accepts. Automaton has 1946 states and 2797 transitions. Word has length 80 [2020-10-15 03:27:22,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:27:22,216 INFO L479 AbstractCegarLoop]: Abstraction has 1946 states and 2797 transitions. [2020-10-15 03:27:22,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:27:22,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1946 states and 2797 transitions. [2020-10-15 03:27:22,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-15 03:27:22,217 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:27:22,217 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] [2020-10-15 03:27:22,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-15 03:27:22,218 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:27:22,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:27:22,218 INFO L82 PathProgramCache]: Analyzing trace with hash 776317113, now seen corresponding path program 1 times [2020-10-15 03:27:22,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:27:22,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [927148470] [2020-10-15 03:27:22,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:27:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:22,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:22,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:22,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:22,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:22,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:23,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:23,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:23,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:24,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:24,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:24,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:25,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:25,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:25,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:26,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:26,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:27,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:27,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-15 03:27:27,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 03:27:27,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:27:27,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:27,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:27,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:27:27,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:27:27,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-15 03:27:27,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:27:27,805 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:27:27,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:27:27,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:27,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:27,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:27,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:27:27,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:27:27,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 03:27:27,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:27,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:27,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:27:27,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:27:27,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:27:27,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:27:27,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:27:27,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [927148470] [2020-10-15 03:27:27,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:27:27,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:27:27,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111635053] [2020-10-15 03:27:27,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:27:27,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:27:27,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:27:27,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:27:27,842 INFO L87 Difference]: Start difference. First operand 1946 states and 2797 transitions. Second operand 8 states.