/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 23:57:04,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 23:57:04,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 23:57:04,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 23:57:04,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 23:57:04,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 23:57:04,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 23:57:04,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 23:57:04,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 23:57:04,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 23:57:04,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 23:57:04,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 23:57:04,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 23:57:04,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 23:57:04,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 23:57:04,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 23:57:04,474 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 23:57:04,475 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 23:57:04,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 23:57:04,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 23:57:04,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 23:57:04,487 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 23:57:04,488 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 23:57:04,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 23:57:04,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 23:57:04,501 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 23:57:04,501 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 23:57:04,507 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 23:57:04,507 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 23:57:04,508 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 23:57:04,508 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 23:57:04,509 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 23:57:04,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 23:57:04,510 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 23:57:04,511 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 23:57:04,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 23:57:04,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 23:57:04,512 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 23:57:04,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 23:57:04,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 23:57:04,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 23:57:04,520 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 [2020-08-21 23:57:04,555 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 23:57:04,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 23:57:04,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 23:57:04,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 23:57:04,558 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 23:57:04,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 23:57:04,558 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 23:57:04,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 23:57:04,559 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 23:57:04,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 23:57:04,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 23:57:04,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 23:57:04,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 23:57:04,561 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 23:57:04,561 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 23:57:04,561 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 23:57:04,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 23:57:04,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 23:57:04,562 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 23:57:04,562 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 23:57:04,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 23:57:04,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 23:57:04,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 23:57:04,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 23:57:04,563 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 23:57:04,563 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 23:57:04,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 23:57:04,563 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 23:57:04,564 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 23:57:04,564 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-08-21 23:57:04,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 23:57:04,855 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 23:57:04,861 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 23:57:04,863 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 23:57:04,863 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 23:57:04,864 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2020-08-21 23:57:04,939 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5b37b979/67b18c2fcbc94edca4e67033f868f9ad/FLAG513a17257 [2020-08-21 23:57:05,476 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 23:57:05,477 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2020-08-21 23:57:05,490 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5b37b979/67b18c2fcbc94edca4e67033f868f9ad/FLAG513a17257 [2020-08-21 23:57:05,761 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5b37b979/67b18c2fcbc94edca4e67033f868f9ad [2020-08-21 23:57:05,770 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 23:57:05,772 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 23:57:05,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 23:57:05,774 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 23:57:05,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 23:57:05,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:57:05" (1/1) ... [2020-08-21 23:57:05,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:57:05, skipping insertion in model container [2020-08-21 23:57:05,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:57:05" (1/1) ... [2020-08-21 23:57:05,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 23:57:05,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 23:57:06,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:57:06,138 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 23:57:06,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:57:06,321 INFO L208 MainTranslator]: Completed translation [2020-08-21 23:57:06,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:57:06 WrapperNode [2020-08-21 23:57:06,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 23:57:06,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 23:57:06,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 23:57:06,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 23:57:06,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:57:06" (1/1) ... [2020-08-21 23:57:06,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:57:06" (1/1) ... [2020-08-21 23:57:06,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:57:06" (1/1) ... [2020-08-21 23:57:06,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:57:06" (1/1) ... [2020-08-21 23:57:06,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:57:06" (1/1) ... [2020-08-21 23:57:06,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:57:06" (1/1) ... [2020-08-21 23:57:06,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:57:06" (1/1) ... [2020-08-21 23:57:06,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 23:57:06,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 23:57:06,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 23:57:06,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 23:57:06,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:57:06" (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 [2020-08-21 23:57:06,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 23:57:06,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 23:57:06,476 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-21 23:57:06,476 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2020-08-21 23:57:06,477 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2020-08-21 23:57:06,477 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2020-08-21 23:57:06,477 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2020-08-21 23:57:06,477 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2020-08-21 23:57:06,477 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2020-08-21 23:57:06,477 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2020-08-21 23:57:06,478 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2020-08-21 23:57:06,478 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-08-21 23:57:06,478 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2020-08-21 23:57:06,478 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2020-08-21 23:57:06,478 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2020-08-21 23:57:06,478 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2020-08-21 23:57:06,478 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2020-08-21 23:57:06,479 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-08-21 23:57:06,479 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 23:57:06,479 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-08-21 23:57:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 23:57:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-08-21 23:57:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-08-21 23:57:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-08-21 23:57:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-08-21 23:57:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-08-21 23:57:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-21 23:57:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-21 23:57:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2020-08-21 23:57:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2020-08-21 23:57:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2020-08-21 23:57:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2020-08-21 23:57:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2020-08-21 23:57:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2020-08-21 23:57:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2020-08-21 23:57:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2020-08-21 23:57:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-08-21 23:57:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2020-08-21 23:57:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2020-08-21 23:57:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2020-08-21 23:57:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2020-08-21 23:57:06,483 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2020-08-21 23:57:06,483 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-08-21 23:57:06,483 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 23:57:06,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 23:57:06,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 23:57:07,242 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 23:57:07,242 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 23:57:07,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:57:07 BoogieIcfgContainer [2020-08-21 23:57:07,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 23:57:07,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 23:57:07,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 23:57:07,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 23:57:07,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 11:57:05" (1/3) ... [2020-08-21 23:57:07,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53da19ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:57:07, skipping insertion in model container [2020-08-21 23:57:07,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:57:06" (2/3) ... [2020-08-21 23:57:07,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53da19ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:57:07, skipping insertion in model container [2020-08-21 23:57:07,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:57:07" (3/3) ... [2020-08-21 23:57:07,268 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2020-08-21 23:57:07,280 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 23:57:07,288 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 23:57:07,302 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 23:57:07,324 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 23:57:07,325 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 23:57:07,325 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 23:57:07,325 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 23:57:07,325 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 23:57:07,325 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 23:57:07,326 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 23:57:07,326 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 23:57:07,351 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states. [2020-08-21 23:57:07,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-08-21 23:57:07,362 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:57:07,363 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] [2020-08-21 23:57:07,364 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:57:07,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:57:07,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1541207534, now seen corresponding path program 1 times [2020-08-21 23:57:07,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:57:07,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2023955956] [2020-08-21 23:57:07,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:57:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:07,872 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-08-21 23:57:07,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:57:07,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:07,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:57:07,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:07,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 23:57:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:07,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:57:07,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:07,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:07,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-21 23:57:07,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:08,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:08,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-21 23:57:08,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:08,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:08,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:57:08,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2023955956] [2020-08-21 23:57:08,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:57:08,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 23:57:08,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152457415] [2020-08-21 23:57:08,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 23:57:08,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:57:08,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 23:57:08,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-08-21 23:57:08,131 INFO L87 Difference]: Start difference. First operand 243 states. Second operand 9 states. [2020-08-21 23:57:09,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:57:09,645 INFO L93 Difference]: Finished difference Result 463 states and 711 transitions. [2020-08-21 23:57:09,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 23:57:09,647 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-08-21 23:57:09,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:57:09,663 INFO L225 Difference]: With dead ends: 463 [2020-08-21 23:57:09,663 INFO L226 Difference]: Without dead ends: 238 [2020-08-21 23:57:09,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2020-08-21 23:57:09,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-08-21 23:57:09,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-08-21 23:57:09,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-08-21 23:57:09,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 343 transitions. [2020-08-21 23:57:09,788 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 343 transitions. Word has length 71 [2020-08-21 23:57:09,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:57:09,788 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 343 transitions. [2020-08-21 23:57:09,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 23:57:09,789 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 343 transitions. [2020-08-21 23:57:09,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-08-21 23:57:09,793 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:57:09,793 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] [2020-08-21 23:57:09,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 23:57:09,793 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:57:09,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:57:09,794 INFO L82 PathProgramCache]: Analyzing trace with hash -508602450, now seen corresponding path program 1 times [2020-08-21 23:57:09,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:57:09,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [495701833] [2020-08-21 23:57:09,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:57:09,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:10,011 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-08-21 23:57:10,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:57:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:10,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:57:10,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:10,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 23:57:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:10,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:57:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:10,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:10,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-21 23:57:10,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:10,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:10,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:10,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-21 23:57:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:10,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:10,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:10,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:57:10,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [495701833] [2020-08-21 23:57:10,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:57:10,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-08-21 23:57:10,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077465305] [2020-08-21 23:57:10,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-21 23:57:10,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:57:10,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-21 23:57:10,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-08-21 23:57:10,277 INFO L87 Difference]: Start difference. First operand 238 states and 343 transitions. Second operand 14 states. [2020-08-21 23:57:10,459 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-08-21 23:57:10,701 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-08-21 23:57:10,881 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-21 23:57:13,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:57:13,358 INFO L93 Difference]: Finished difference Result 467 states and 671 transitions. [2020-08-21 23:57:13,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-21 23:57:13,359 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 71 [2020-08-21 23:57:13,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:57:13,367 INFO L225 Difference]: With dead ends: 467 [2020-08-21 23:57:13,367 INFO L226 Difference]: Without dead ends: 248 [2020-08-21 23:57:13,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-08-21 23:57:13,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-08-21 23:57:13,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 238. [2020-08-21 23:57:13,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-08-21 23:57:13,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 331 transitions. [2020-08-21 23:57:13,419 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 331 transitions. Word has length 71 [2020-08-21 23:57:13,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:57:13,420 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 331 transitions. [2020-08-21 23:57:13,420 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-21 23:57:13,420 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 331 transitions. [2020-08-21 23:57:13,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-08-21 23:57:13,422 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:57:13,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:57:13,423 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 23:57:13,423 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:57:13,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:57:13,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1489036951, now seen corresponding path program 1 times [2020-08-21 23:57:13,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:57:13,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [261799097] [2020-08-21 23:57:13,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:57:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:13,643 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-08-21 23:57:13,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:57:13,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:13,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:57:13,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:13,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:57:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:13,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-21 23:57:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:13,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:13,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:13,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 23:57:13,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:13,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:13,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-21 23:57:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:13,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:13,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:57:13,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [261799097] [2020-08-21 23:57:13,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:57:13,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-21 23:57:13,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056506919] [2020-08-21 23:57:13,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 23:57:13,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:57:13,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 23:57:13,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-08-21 23:57:13,831 INFO L87 Difference]: Start difference. First operand 238 states and 331 transitions. Second operand 11 states. [2020-08-21 23:57:14,824 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-08-21 23:57:14,975 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-21 23:57:16,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:57:16,045 INFO L93 Difference]: Finished difference Result 456 states and 647 transitions. [2020-08-21 23:57:16,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-21 23:57:16,046 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 82 [2020-08-21 23:57:16,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:57:16,050 INFO L225 Difference]: With dead ends: 456 [2020-08-21 23:57:16,050 INFO L226 Difference]: Without dead ends: 242 [2020-08-21 23:57:16,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2020-08-21 23:57:16,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-08-21 23:57:16,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-08-21 23:57:16,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-08-21 23:57:16,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 334 transitions. [2020-08-21 23:57:16,087 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 334 transitions. Word has length 82 [2020-08-21 23:57:16,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:57:16,088 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 334 transitions. [2020-08-21 23:57:16,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 23:57:16,088 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 334 transitions. [2020-08-21 23:57:16,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-08-21 23:57:16,090 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:57:16,091 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:57:16,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 23:57:16,091 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:57:16,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:57:16,092 INFO L82 PathProgramCache]: Analyzing trace with hash -2124611218, now seen corresponding path program 1 times [2020-08-21 23:57:16,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:57:16,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [617791394] [2020-08-21 23:57:16,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:57:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:16,294 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-08-21 23:57:16,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:57:16,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:16,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:57:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:16,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:57:16,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:16,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-21 23:57:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:16,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:16,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:16,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 23:57:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:16,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:16,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:16,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-21 23:57:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:16,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:16,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:16,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-21 23:57:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:16,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:16,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:57:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:16,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-21 23:57:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:16,619 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-21 23:57:16,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [617791394] [2020-08-21 23:57:16,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:57:16,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-08-21 23:57:16,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250772959] [2020-08-21 23:57:16,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-21 23:57:16,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:57:16,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-21 23:57:16,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2020-08-21 23:57:16,624 INFO L87 Difference]: Start difference. First operand 242 states and 334 transitions. Second operand 16 states. [2020-08-21 23:57:16,779 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-21 23:57:18,599 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-08-21 23:57:20,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:57:20,359 INFO L93 Difference]: Finished difference Result 551 states and 760 transitions. [2020-08-21 23:57:20,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-08-21 23:57:20,360 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 104 [2020-08-21 23:57:20,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:57:20,365 INFO L225 Difference]: With dead ends: 551 [2020-08-21 23:57:20,365 INFO L226 Difference]: Without dead ends: 333 [2020-08-21 23:57:20,367 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2020-08-21 23:57:20,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2020-08-21 23:57:20,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 332. [2020-08-21 23:57:20,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-08-21 23:57:20,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 449 transitions. [2020-08-21 23:57:20,407 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 449 transitions. Word has length 104 [2020-08-21 23:57:20,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:57:20,408 INFO L479 AbstractCegarLoop]: Abstraction has 332 states and 449 transitions. [2020-08-21 23:57:20,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-21 23:57:20,408 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 449 transitions. [2020-08-21 23:57:20,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-08-21 23:57:20,410 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:57:20,410 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:57:20,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 23:57:20,411 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:57:20,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:57:20,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1802435784, now seen corresponding path program 1 times [2020-08-21 23:57:20,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:57:20,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [784882679] [2020-08-21 23:57:20,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:57:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:20,601 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-08-21 23:57:20,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:57:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:20,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:57:20,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:20,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:57:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:20,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-21 23:57:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:20,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:20,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:20,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 23:57:20,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:20,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:20,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-21 23:57:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:20,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:20,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:20,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-21 23:57:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:20,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:20,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:20,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:57:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:20,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 23:57:20,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:20,934 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-21 23:57:20,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [784882679] [2020-08-21 23:57:20,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:57:20,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-08-21 23:57:20,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668774907] [2020-08-21 23:57:20,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-21 23:57:20,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:57:20,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-21 23:57:20,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2020-08-21 23:57:20,937 INFO L87 Difference]: Start difference. First operand 332 states and 449 transitions. Second operand 16 states. [2020-08-21 23:57:21,135 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-21 23:57:22,767 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-08-21 23:57:24,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:57:24,533 INFO L93 Difference]: Finished difference Result 557 states and 768 transitions. [2020-08-21 23:57:24,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-08-21 23:57:24,534 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 105 [2020-08-21 23:57:24,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:57:24,538 INFO L225 Difference]: With dead ends: 557 [2020-08-21 23:57:24,538 INFO L226 Difference]: Without dead ends: 336 [2020-08-21 23:57:24,540 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2020-08-21 23:57:24,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2020-08-21 23:57:24,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 332. [2020-08-21 23:57:24,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-08-21 23:57:24,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 449 transitions. [2020-08-21 23:57:24,576 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 449 transitions. Word has length 105 [2020-08-21 23:57:24,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:57:24,576 INFO L479 AbstractCegarLoop]: Abstraction has 332 states and 449 transitions. [2020-08-21 23:57:24,577 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-21 23:57:24,577 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 449 transitions. [2020-08-21 23:57:24,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-08-21 23:57:24,578 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:57:24,578 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:57:24,579 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 23:57:24,579 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:57:24,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:57:24,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1848316150, now seen corresponding path program 1 times [2020-08-21 23:57:24,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:57:24,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [506945728] [2020-08-21 23:57:24,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:57:24,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:24,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:57:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:24,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:57:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:24,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:57:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:24,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-21 23:57:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:24,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:24,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:24,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 23:57:24,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:24,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:24,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:24,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-21 23:57:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:24,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:25,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-21 23:57:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:25,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:25,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:25,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 23:57:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:25,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-21 23:57:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:25,076 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-21 23:57:25,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [506945728] [2020-08-21 23:57:25,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:57:25,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-21 23:57:25,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859631314] [2020-08-21 23:57:25,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 23:57:25,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:57:25,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 23:57:25,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-08-21 23:57:25,079 INFO L87 Difference]: Start difference. First operand 332 states and 449 transitions. Second operand 12 states. [2020-08-21 23:57:25,804 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-21 23:57:26,553 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-08-21 23:57:28,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:57:28,618 INFO L93 Difference]: Finished difference Result 791 states and 1096 transitions. [2020-08-21 23:57:28,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-21 23:57:28,619 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 107 [2020-08-21 23:57:28,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:57:28,624 INFO L225 Difference]: With dead ends: 791 [2020-08-21 23:57:28,624 INFO L226 Difference]: Without dead ends: 570 [2020-08-21 23:57:28,625 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2020-08-21 23:57:28,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-08-21 23:57:28,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 552. [2020-08-21 23:57:28,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 552 states. [2020-08-21 23:57:28,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 760 transitions. [2020-08-21 23:57:28,691 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 760 transitions. Word has length 107 [2020-08-21 23:57:28,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:57:28,692 INFO L479 AbstractCegarLoop]: Abstraction has 552 states and 760 transitions. [2020-08-21 23:57:28,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-21 23:57:28,692 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 760 transitions. [2020-08-21 23:57:28,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-08-21 23:57:28,694 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:57:28,694 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:57:28,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 23:57:28,695 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:57:28,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:57:28,695 INFO L82 PathProgramCache]: Analyzing trace with hash -723997746, now seen corresponding path program 1 times [2020-08-21 23:57:28,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:57:28,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [931923577] [2020-08-21 23:57:28,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:57:28,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:28,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:57:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:28,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:57:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:28,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:57:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:28,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-21 23:57:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:28,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:28,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 23:57:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:28,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:28,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:28,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-08-21 23:57:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:29,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:29,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-08-21 23:57:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:29,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:29,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 23:57:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:29,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-08-21 23:57:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:29,090 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-21 23:57:29,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [931923577] [2020-08-21 23:57:29,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:57:29,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-21 23:57:29,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582945973] [2020-08-21 23:57:29,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 23:57:29,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:57:29,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 23:57:29,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-08-21 23:57:29,092 INFO L87 Difference]: Start difference. First operand 552 states and 760 transitions. Second operand 12 states. [2020-08-21 23:57:29,242 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-08-21 23:57:32,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:57:32,568 INFO L93 Difference]: Finished difference Result 968 states and 1350 transitions. [2020-08-21 23:57:32,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-21 23:57:32,569 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 109 [2020-08-21 23:57:32,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:57:32,577 INFO L225 Difference]: With dead ends: 968 [2020-08-21 23:57:32,577 INFO L226 Difference]: Without dead ends: 570 [2020-08-21 23:57:32,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2020-08-21 23:57:32,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-08-21 23:57:32,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 552. [2020-08-21 23:57:32,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 552 states. [2020-08-21 23:57:32,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 758 transitions. [2020-08-21 23:57:32,659 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 758 transitions. Word has length 109 [2020-08-21 23:57:32,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:57:32,660 INFO L479 AbstractCegarLoop]: Abstraction has 552 states and 758 transitions. [2020-08-21 23:57:32,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-21 23:57:32,660 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 758 transitions. [2020-08-21 23:57:32,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-08-21 23:57:32,661 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:57:32,662 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:57:32,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 23:57:32,662 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:57:32,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:57:32,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1067489879, now seen corresponding path program 1 times [2020-08-21 23:57:32,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:57:32,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1768556387] [2020-08-21 23:57:32,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:57:32,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:32,831 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-08-21 23:57:32,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:57:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:32,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:57:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:32,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:57:32,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:32,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-21 23:57:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:32,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:32,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:32,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 23:57:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:32,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:32,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-21 23:57:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:32,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:33,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-21 23:57:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:33,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:33,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 23:57:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:33,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-21 23:57:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:33,064 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-21 23:57:33,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1768556387] [2020-08-21 23:57:33,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:57:33,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-21 23:57:33,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559821664] [2020-08-21 23:57:33,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 23:57:33,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:57:33,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 23:57:33,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-08-21 23:57:33,067 INFO L87 Difference]: Start difference. First operand 552 states and 758 transitions. Second operand 12 states. [2020-08-21 23:57:34,175 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-21 23:57:36,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:57:36,619 INFO L93 Difference]: Finished difference Result 1311 states and 1841 transitions. [2020-08-21 23:57:36,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-21 23:57:36,619 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 108 [2020-08-21 23:57:36,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:57:36,626 INFO L225 Difference]: With dead ends: 1311 [2020-08-21 23:57:36,626 INFO L226 Difference]: Without dead ends: 913 [2020-08-21 23:57:36,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2020-08-21 23:57:36,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2020-08-21 23:57:36,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 907. [2020-08-21 23:57:36,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 907 states. [2020-08-21 23:57:36,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1263 transitions. [2020-08-21 23:57:36,722 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1263 transitions. Word has length 108 [2020-08-21 23:57:36,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:57:36,722 INFO L479 AbstractCegarLoop]: Abstraction has 907 states and 1263 transitions. [2020-08-21 23:57:36,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-21 23:57:36,723 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1263 transitions. [2020-08-21 23:57:36,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-08-21 23:57:36,725 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:57:36,725 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:57:36,725 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 23:57:36,725 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:57:36,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:57:36,726 INFO L82 PathProgramCache]: Analyzing trace with hash -212373799, now seen corresponding path program 1 times [2020-08-21 23:57:36,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:57:36,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1147031795] [2020-08-21 23:57:36,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:57:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:36,951 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-08-21 23:57:36,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:57:36,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:36,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:57:36,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:36,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:57:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:36,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-21 23:57:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:37,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:37,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:37,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 23:57:37,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:37,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:37,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:37,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-21 23:57:37,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:37,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:37,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:37,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-21 23:57:37,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:37,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:37,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:37,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 23:57:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:37,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-21 23:57:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:37,171 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-21 23:57:37,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1147031795] [2020-08-21 23:57:37,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:57:37,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-21 23:57:37,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935732453] [2020-08-21 23:57:37,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 23:57:37,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:57:37,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 23:57:37,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-08-21 23:57:37,174 INFO L87 Difference]: Start difference. First operand 907 states and 1263 transitions. Second operand 13 states. [2020-08-21 23:57:38,523 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-08-21 23:57:38,651 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-21 23:57:39,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:57:39,545 INFO L93 Difference]: Finished difference Result 1662 states and 2348 transitions. [2020-08-21 23:57:39,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 23:57:39,549 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 108 [2020-08-21 23:57:39,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:57:39,555 INFO L225 Difference]: With dead ends: 1662 [2020-08-21 23:57:39,555 INFO L226 Difference]: Without dead ends: 927 [2020-08-21 23:57:39,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-08-21 23:57:39,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2020-08-21 23:57:39,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 927. [2020-08-21 23:57:39,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 927 states. [2020-08-21 23:57:39,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1279 transitions. [2020-08-21 23:57:39,646 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1279 transitions. Word has length 108 [2020-08-21 23:57:39,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:57:39,647 INFO L479 AbstractCegarLoop]: Abstraction has 927 states and 1279 transitions. [2020-08-21 23:57:39,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 23:57:39,647 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1279 transitions. [2020-08-21 23:57:39,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-08-21 23:57:39,649 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:57:39,649 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:57:39,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 23:57:39,650 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:57:39,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:57:39,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1747753163, now seen corresponding path program 1 times [2020-08-21 23:57:39,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:57:39,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2055019730] [2020-08-21 23:57:39,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:57:39,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:39,841 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-08-21 23:57:39,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:57:39,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:39,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:57:39,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:39,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:57:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:39,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-21 23:57:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:39,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:39,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 23:57:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:39,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:39,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:39,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-21 23:57:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:39,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:40,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-21 23:57:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:40,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:40,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 23:57:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:40,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-21 23:57:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:40,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-21 23:57:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:40,125 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-21 23:57:40,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2055019730] [2020-08-21 23:57:40,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:57:40,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-21 23:57:40,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168818948] [2020-08-21 23:57:40,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 23:57:40,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:57:40,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 23:57:40,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-08-21 23:57:40,127 INFO L87 Difference]: Start difference. First operand 927 states and 1279 transitions. Second operand 13 states. [2020-08-21 23:57:41,506 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-08-21 23:57:41,645 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-21 23:57:42,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:57:42,600 INFO L93 Difference]: Finished difference Result 1702 states and 2392 transitions. [2020-08-21 23:57:42,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 23:57:42,601 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 116 [2020-08-21 23:57:42,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:57:42,607 INFO L225 Difference]: With dead ends: 1702 [2020-08-21 23:57:42,607 INFO L226 Difference]: Without dead ends: 947 [2020-08-21 23:57:42,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-08-21 23:57:42,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2020-08-21 23:57:42,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 947. [2020-08-21 23:57:42,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 947 states. [2020-08-21 23:57:42,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1295 transitions. [2020-08-21 23:57:42,706 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1295 transitions. Word has length 116 [2020-08-21 23:57:42,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:57:42,707 INFO L479 AbstractCegarLoop]: Abstraction has 947 states and 1295 transitions. [2020-08-21 23:57:42,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 23:57:42,707 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1295 transitions. [2020-08-21 23:57:42,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-08-21 23:57:42,710 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:57:42,710 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:57:42,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 23:57:42,711 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:57:42,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:57:42,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1289634625, now seen corresponding path program 1 times [2020-08-21 23:57:42,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:57:42,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977270892] [2020-08-21 23:57:42,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:57:42,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:42,906 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-08-21 23:57:42,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:57:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:42,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:57:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:42,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:57:42,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:42,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-21 23:57:42,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:42,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:42,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 23:57:42,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:43,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:43,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-21 23:57:43,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:43,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:43,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:43,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-21 23:57:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:43,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:43,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:43,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 23:57:43,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:43,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-21 23:57:43,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:43,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-21 23:57:43,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:43,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-21 23:57:43,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:43,134 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-21 23:57:43,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977270892] [2020-08-21 23:57:43,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:57:43,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-21 23:57:43,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238211904] [2020-08-21 23:57:43,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 23:57:43,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:57:43,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 23:57:43,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-08-21 23:57:43,137 INFO L87 Difference]: Start difference. First operand 947 states and 1295 transitions. Second operand 13 states. [2020-08-21 23:57:44,701 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-08-21 23:57:44,838 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-21 23:57:45,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:57:45,548 INFO L93 Difference]: Finished difference Result 1738 states and 2408 transitions. [2020-08-21 23:57:45,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 23:57:45,549 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 124 [2020-08-21 23:57:45,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:57:45,554 INFO L225 Difference]: With dead ends: 1738 [2020-08-21 23:57:45,555 INFO L226 Difference]: Without dead ends: 963 [2020-08-21 23:57:45,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-08-21 23:57:45,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2020-08-21 23:57:45,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 963. [2020-08-21 23:57:45,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 963 states. [2020-08-21 23:57:45,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1307 transitions. [2020-08-21 23:57:45,649 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1307 transitions. Word has length 124 [2020-08-21 23:57:45,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:57:45,649 INFO L479 AbstractCegarLoop]: Abstraction has 963 states and 1307 transitions. [2020-08-21 23:57:45,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 23:57:45,649 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1307 transitions. [2020-08-21 23:57:45,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-08-21 23:57:45,651 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:57:45,652 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:57:45,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-21 23:57:45,652 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:57:45,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:57:45,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1471497757, now seen corresponding path program 1 times [2020-08-21 23:57:45,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:57:45,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313688605] [2020-08-21 23:57:45,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:57:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:45,869 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-08-21 23:57:45,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:57:45,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:45,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:57:45,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:45,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:57:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:45,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-21 23:57:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:45,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:46,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 23:57:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:46,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:46,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-21 23:57:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:46,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:46,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:46,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-21 23:57:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:46,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:46,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 23:57:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:46,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-21 23:57:46,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:46,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-21 23:57:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:46,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-21 23:57:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:46,325 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-21 23:57:46,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [313688605] [2020-08-21 23:57:46,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:57:46,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-08-21 23:57:46,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76299644] [2020-08-21 23:57:46,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-21 23:57:46,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:57:46,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-21 23:57:46,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2020-08-21 23:57:46,329 INFO L87 Difference]: Start difference. First operand 963 states and 1307 transitions. Second operand 18 states. [2020-08-21 23:57:46,784 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 133 [2020-08-21 23:57:47,023 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-08-21 23:57:47,397 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-08-21 23:57:48,666 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-08-21 23:57:48,811 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-08-21 23:57:48,947 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-08-21 23:57:50,458 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-08-21 23:57:50,610 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-08-21 23:57:52,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:57:52,688 INFO L93 Difference]: Finished difference Result 2594 states and 3626 transitions. [2020-08-21 23:57:52,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-21 23:57:52,689 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 124 [2020-08-21 23:57:52,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:57:52,699 INFO L225 Difference]: With dead ends: 2594 [2020-08-21 23:57:52,700 INFO L226 Difference]: Without dead ends: 1791 [2020-08-21 23:57:52,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=410, Invalid=1230, Unknown=0, NotChecked=0, Total=1640 [2020-08-21 23:57:52,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2020-08-21 23:57:52,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1549. [2020-08-21 23:57:52,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1549 states. [2020-08-21 23:57:52,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1549 states to 1549 states and 2123 transitions. [2020-08-21 23:57:52,864 INFO L78 Accepts]: Start accepts. Automaton has 1549 states and 2123 transitions. Word has length 124 [2020-08-21 23:57:52,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:57:52,865 INFO L479 AbstractCegarLoop]: Abstraction has 1549 states and 2123 transitions. [2020-08-21 23:57:52,865 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-21 23:57:52,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1549 states and 2123 transitions. [2020-08-21 23:57:52,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-08-21 23:57:52,867 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:57:52,867 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:57:52,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-21 23:57:52,868 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:57:52,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:57:52,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1891846081, now seen corresponding path program 1 times [2020-08-21 23:57:52,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:57:52,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2003414929] [2020-08-21 23:57:52,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:57:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:53,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:57:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:53,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:57:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:53,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:57:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:53,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-21 23:57:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:53,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:53,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 23:57:53,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:53,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:53,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:53,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-21 23:57:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:53,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:53,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:53,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-21 23:57:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:53,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:53,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 23:57:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:53,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-21 23:57:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:53,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-21 23:57:53,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:53,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-21 23:57:53,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:53,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-21 23:57:53,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:53,253 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-08-21 23:57:53,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2003414929] [2020-08-21 23:57:53,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:57:53,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-21 23:57:53,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424012003] [2020-08-21 23:57:53,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 23:57:53,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:57:53,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 23:57:53,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-08-21 23:57:53,256 INFO L87 Difference]: Start difference. First operand 1549 states and 2123 transitions. Second operand 13 states. [2020-08-21 23:57:54,676 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-08-21 23:57:54,802 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-21 23:57:55,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:57:55,710 INFO L93 Difference]: Finished difference Result 2816 states and 3937 transitions. [2020-08-21 23:57:55,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 23:57:55,711 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 131 [2020-08-21 23:57:55,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:57:55,725 INFO L225 Difference]: With dead ends: 2816 [2020-08-21 23:57:55,725 INFO L226 Difference]: Without dead ends: 1589 [2020-08-21 23:57:55,737 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-08-21 23:57:55,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2020-08-21 23:57:56,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1589. [2020-08-21 23:57:56,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1589 states. [2020-08-21 23:57:56,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 2155 transitions. [2020-08-21 23:57:56,085 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 2155 transitions. Word has length 131 [2020-08-21 23:57:56,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:57:56,086 INFO L479 AbstractCegarLoop]: Abstraction has 1589 states and 2155 transitions. [2020-08-21 23:57:56,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 23:57:56,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 2155 transitions. [2020-08-21 23:57:56,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-08-21 23:57:56,090 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:57:56,090 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:57:56,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-21 23:57:56,090 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:57:56,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:57:56,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1423528137, now seen corresponding path program 1 times [2020-08-21 23:57:56,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:57:56,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1361003881] [2020-08-21 23:57:56,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:57:56,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:56,370 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-08-21 23:57:56,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:57:56,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:56,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:57:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:56,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:57:56,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:56,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-21 23:57:56,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:56,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:56,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:56,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 23:57:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:56,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:56,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-21 23:57:56,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:56,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:56,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-21 23:57:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:56,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:57:56,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:56,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 23:57:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:56,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-21 23:57:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:56,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-21 23:57:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:56,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-21 23:57:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:56,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-21 23:57:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:56,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-21 23:57:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:57:56,713 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-08-21 23:57:56,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1361003881] [2020-08-21 23:57:56,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:57:56,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-21 23:57:56,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612899768] [2020-08-21 23:57:56,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 23:57:56,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:57:56,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 23:57:56,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-08-21 23:57:56,716 INFO L87 Difference]: Start difference. First operand 1589 states and 2155 transitions. Second operand 13 states. [2020-08-21 23:57:58,860 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-08-21 23:57:59,054 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-21 23:58:00,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:58:00,188 INFO L93 Difference]: Finished difference Result 2876 states and 3949 transitions. [2020-08-21 23:58:00,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 23:58:00,189 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 139 [2020-08-21 23:58:00,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:58:00,201 INFO L225 Difference]: With dead ends: 2876 [2020-08-21 23:58:00,201 INFO L226 Difference]: Without dead ends: 1621 [2020-08-21 23:58:00,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-08-21 23:58:00,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1621 states. [2020-08-21 23:58:00,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1621 to 1621. [2020-08-21 23:58:00,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1621 states. [2020-08-21 23:58:00,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1621 states to 1621 states and 2179 transitions. [2020-08-21 23:58:00,471 INFO L78 Accepts]: Start accepts. Automaton has 1621 states and 2179 transitions. Word has length 139 [2020-08-21 23:58:00,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:58:00,472 INFO L479 AbstractCegarLoop]: Abstraction has 1621 states and 2179 transitions. [2020-08-21 23:58:00,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 23:58:00,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1621 states and 2179 transitions. [2020-08-21 23:58:00,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-08-21 23:58:00,476 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:58:00,476 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:58:00,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-21 23:58:00,477 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:58:00,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:58:00,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1915689711, now seen corresponding path program 1 times [2020-08-21 23:58:00,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:58:00,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1086473818] [2020-08-21 23:58:00,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:58:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:58:00,795 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-08-21 23:58:00,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:58:00,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:58:00,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:58:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:58:00,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:58:00,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:58:00,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-21 23:58:00,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:58:00,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:58:00,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:58:00,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 23:58:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:58:00,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:58:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:58:00,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-21 23:58:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:58:01,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:58:01,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:58:01,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-21 23:58:01,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:58:01,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:58:01,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:58:01,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 23:58:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:58:01,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-21 23:58:01,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:58:01,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-21 23:58:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:58:01,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-21 23:58:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:58:01,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-21 23:58:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:58:01,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-08-21 23:58:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat