/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 22:41:47,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 22:41:47,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 22:41:47,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 22:41:47,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 22:41:47,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 22:41:47,668 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 22:41:47,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 22:41:47,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 22:41:47,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 22:41:47,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 22:41:47,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 22:41:47,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 22:41:47,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 22:41:47,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 22:41:47,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 22:41:47,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 22:41:47,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 22:41:47,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 22:41:47,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 22:41:47,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 22:41:47,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 22:41:47,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 22:41:47,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 22:41:47,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 22:41:47,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 22:41:47,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 22:41:47,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 22:41:47,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 22:41:47,738 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 22:41:47,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 22:41:47,740 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 22:41:47,741 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 22:41:47,742 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 22:41:47,744 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 22:41:47,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 22:41:47,746 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 22:41:47,746 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 22:41:47,746 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 22:41:47,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 22:41:47,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 22:41:47,750 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 22:41:47,804 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 22:41:47,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 22:41:47,806 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 22:41:47,807 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 22:41:47,807 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 22:41:47,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 22:41:47,807 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 22:41:47,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 22:41:47,808 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 22:41:47,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 22:41:47,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 22:41:47,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 22:41:47,809 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 22:41:47,809 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 22:41:47,809 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 22:41:47,809 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 22:41:47,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 22:41:47,810 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 22:41:47,810 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 22:41:47,810 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 22:41:47,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 22:41:47,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 22:41:47,811 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 22:41:47,811 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 22:41:47,811 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 22:41:47,811 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 22:41:47,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 22:41:47,812 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 22:41:47,812 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 22:41:47,812 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 22:41:48,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 22:41:48,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 22:41:48,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 22:41:48,224 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 22:41:48,224 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 22:41:48,226 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label38.c [2020-10-26 22:41:48,315 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b4226aff/3e094f58c7304f3cad93f6923cd0056f/FLAG209486df7 [2020-10-26 22:41:49,091 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 22:41:49,092 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem11_label38.c [2020-10-26 22:41:49,113 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b4226aff/3e094f58c7304f3cad93f6923cd0056f/FLAG209486df7 [2020-10-26 22:41:49,323 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b4226aff/3e094f58c7304f3cad93f6923cd0056f [2020-10-26 22:41:49,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 22:41:49,341 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 22:41:49,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 22:41:49,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 22:41:49,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 22:41:49,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:41:49" (1/1) ... [2020-10-26 22:41:49,353 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d0fe900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:49, skipping insertion in model container [2020-10-26 22:41:49,353 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:41:49" (1/1) ... [2020-10-26 22:41:49,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 22:41:49,418 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 22:41:49,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:41:50,001 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 22:41:50,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:41:50,379 INFO L208 MainTranslator]: Completed translation [2020-10-26 22:41:50,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:50 WrapperNode [2020-10-26 22:41:50,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 22:41:50,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 22:41:50,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 22:41:50,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 22:41:50,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:50" (1/1) ... [2020-10-26 22:41:50,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:50" (1/1) ... [2020-10-26 22:41:50,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:50" (1/1) ... [2020-10-26 22:41:50,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:50" (1/1) ... [2020-10-26 22:41:50,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:50" (1/1) ... [2020-10-26 22:41:50,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:50" (1/1) ... [2020-10-26 22:41:50,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:50" (1/1) ... [2020-10-26 22:41:50,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 22:41:50,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 22:41:50,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 22:41:50,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 22:41:50,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:50" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 22:41:50,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 22:41:50,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 22:41:50,648 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 22:41:50,648 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 22:41:50,649 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 22:41:50,649 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 22:41:50,649 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 22:41:50,650 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 22:41:50,650 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 22:41:50,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 22:41:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 22:41:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 22:41:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 22:41:50,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 22:41:50,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 22:41:50,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 22:41:50,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 22:41:50,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 22:41:50,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 22:41:52,737 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 22:41:52,738 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 22:41:52,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:41:52 BoogieIcfgContainer [2020-10-26 22:41:52,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 22:41:52,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 22:41:52,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 22:41:52,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 22:41:52,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:41:49" (1/3) ... [2020-10-26 22:41:52,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c6a6de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:41:52, skipping insertion in model container [2020-10-26 22:41:52,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:50" (2/3) ... [2020-10-26 22:41:52,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c6a6de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:41:52, skipping insertion in model container [2020-10-26 22:41:52,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:41:52" (3/3) ... [2020-10-26 22:41:52,750 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label38.c [2020-10-26 22:41:52,763 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 22:41:52,769 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 22:41:52,783 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 22:41:52,814 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 22:41:52,814 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 22:41:52,814 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 22:41:52,815 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 22:41:52,815 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 22:41:52,815 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 22:41:52,815 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 22:41:52,815 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 22:41:52,840 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states. [2020-10-26 22:41:52,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-26 22:41:52,851 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:41:52,852 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] [2020-10-26 22:41:52,852 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:41:52,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:41:52,859 INFO L82 PathProgramCache]: Analyzing trace with hash -824411954, now seen corresponding path program 1 times [2020-10-26 22:41:52,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:41:52,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [54985724] [2020-10-26 22:41:52,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:41:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:41:53,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:53,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:41:53,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-26 22:41:53,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:41:53,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 604 [2020-10-26 22:41:53,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:41:53,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:41:53,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:41:53,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-26 22:41:53,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 22:41:53,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:41:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:41:53,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:53,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:41:53,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:41:53,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:41:53,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 22:41:53,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:41:53,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:41:53,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:41:53,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:41:53,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:41:53,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:41:53,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [54985724] [2020-10-26 22:41:53,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:41:53,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 22:41:53,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414332823] [2020-10-26 22:41:53,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 22:41:53,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:41:53,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 22:41:53,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 22:41:53,985 INFO L87 Difference]: Start difference. First operand 296 states. Second operand 4 states. [2020-10-26 22:41:57,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:41:57,369 INFO L93 Difference]: Finished difference Result 793 states and 1388 transitions. [2020-10-26 22:41:57,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:41:57,371 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2020-10-26 22:41:57,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:41:57,398 INFO L225 Difference]: With dead ends: 793 [2020-10-26 22:41:57,398 INFO L226 Difference]: Without dead ends: 432 [2020-10-26 22:41:57,408 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:41:57,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2020-10-26 22:41:57,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 426. [2020-10-26 22:41:57,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-10-26 22:41:57,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 613 transitions. [2020-10-26 22:41:57,495 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 613 transitions. Word has length 67 [2020-10-26 22:41:57,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:41:57,496 INFO L481 AbstractCegarLoop]: Abstraction has 426 states and 613 transitions. [2020-10-26 22:41:57,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 22:41:57,496 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 613 transitions. [2020-10-26 22:41:57,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-26 22:41:57,509 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:41:57,510 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:41:57,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 22:41:57,510 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:41:57,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:41:57,511 INFO L82 PathProgramCache]: Analyzing trace with hash -738422285, now seen corresponding path program 1 times [2020-10-26 22:41:57,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:41:57,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [218397392] [2020-10-26 22:41:57,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:41:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:41:57,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:57,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:58,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:59,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:41:59,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-26 22:41:59,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:41:59,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2082 [2020-10-26 22:41:59,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:41:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:41:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:41:59,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 22:41:59,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:41:59,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:41:59,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:41:59,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:59,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:41:59,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:41:59,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:41:59,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 22:41:59,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:41:59,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:41:59,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:41:59,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:41:59,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:41:59,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:41:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:41:59,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:00,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:00,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 22:42:00,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:00,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-26 22:42:00,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:00,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:00,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:42:00,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-26 22:42:00,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:00,215 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:42:00,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [218397392] [2020-10-26 22:42:00,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:42:00,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 22:42:00,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244862558] [2020-10-26 22:42:00,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:42:00,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:42:00,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:42:00,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:42:00,223 INFO L87 Difference]: Start difference. First operand 426 states and 613 transitions. Second operand 7 states. [2020-10-26 22:42:03,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:42:03,570 INFO L93 Difference]: Finished difference Result 1276 states and 1874 transitions. [2020-10-26 22:42:03,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:42:03,575 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 139 [2020-10-26 22:42:03,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:42:03,583 INFO L225 Difference]: With dead ends: 1276 [2020-10-26 22:42:03,583 INFO L226 Difference]: Without dead ends: 856 [2020-10-26 22:42:03,586 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:42:03,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2020-10-26 22:42:03,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 821. [2020-10-26 22:42:03,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2020-10-26 22:42:03,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1124 transitions. [2020-10-26 22:42:03,697 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1124 transitions. Word has length 139 [2020-10-26 22:42:03,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:42:03,698 INFO L481 AbstractCegarLoop]: Abstraction has 821 states and 1124 transitions. [2020-10-26 22:42:03,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:42:03,698 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1124 transitions. [2020-10-26 22:42:03,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-26 22:42:03,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:42:03,711 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:42:03,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 22:42:03,715 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:42:03,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:42:03,716 INFO L82 PathProgramCache]: Analyzing trace with hash 768995767, now seen corresponding path program 1 times [2020-10-26 22:42:03,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:42:03,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1546603026] [2020-10-26 22:42:03,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:42:03,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:03,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:03,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:04,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:05,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:05,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-26 22:42:05,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:42:05,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2005 [2020-10-26 22:42:05,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:05,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:42:05,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:42:05,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-26 22:42:05,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:05,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:42:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:05,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:05,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:05,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:42:05,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:05,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 22:42:05,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:05,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:42:05,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:05,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:42:05,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:05,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:42:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:05,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:06,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:06,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-26 22:42:06,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:06,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-26 22:42:06,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:06,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:06,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:42:06,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-26 22:42:06,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:06,256 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:42:06,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1546603026] [2020-10-26 22:42:06,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:42:06,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 22:42:06,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990389457] [2020-10-26 22:42:06,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:42:06,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:42:06,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:42:06,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:42:06,263 INFO L87 Difference]: Start difference. First operand 821 states and 1124 transitions. Second operand 7 states. [2020-10-26 22:42:09,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:42:09,790 INFO L93 Difference]: Finished difference Result 2437 states and 3378 transitions. [2020-10-26 22:42:09,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 22:42:09,791 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 141 [2020-10-26 22:42:09,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:42:09,805 INFO L225 Difference]: With dead ends: 2437 [2020-10-26 22:42:09,805 INFO L226 Difference]: Without dead ends: 1622 [2020-10-26 22:42:09,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-26 22:42:09,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2020-10-26 22:42:09,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1600. [2020-10-26 22:42:09,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1600 states. [2020-10-26 22:42:09,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1600 states to 1600 states and 1968 transitions. [2020-10-26 22:42:09,882 INFO L78 Accepts]: Start accepts. Automaton has 1600 states and 1968 transitions. Word has length 141 [2020-10-26 22:42:09,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:42:09,885 INFO L481 AbstractCegarLoop]: Abstraction has 1600 states and 1968 transitions. [2020-10-26 22:42:09,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:42:09,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1600 states and 1968 transitions. [2020-10-26 22:42:09,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-10-26 22:42:09,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:42:09,895 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:42:09,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 22:42:09,895 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:42:09,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:42:09,897 INFO L82 PathProgramCache]: Analyzing trace with hash 331373946, now seen corresponding path program 1 times [2020-10-26 22:42:09,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:42:09,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [633908883] [2020-10-26 22:42:09,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:42:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:10,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:10,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:10,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-10-26 22:42:10,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:10,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 485 [2020-10-26 22:42:10,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:10,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:10,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-26 22:42:10,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-26 22:42:10,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 22:42:10,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:42:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:10,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:10,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:10,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:42:10,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:10,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:42:10,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:10,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:42:10,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:10,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:42:10,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:10,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:42:10,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:10,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:10,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:10,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-26 22:42:10,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:10,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-26 22:42:10,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:10,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:42:10,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:10,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-26 22:42:10,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:10,899 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:42:10,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [633908883] [2020-10-26 22:42:10,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:42:10,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:42:10,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373211552] [2020-10-26 22:42:10,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:42:10,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:42:10,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:42:10,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:42:10,903 INFO L87 Difference]: Start difference. First operand 1600 states and 1968 transitions. Second operand 5 states. [2020-10-26 22:42:13,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:42:13,608 INFO L93 Difference]: Finished difference Result 3411 states and 4356 transitions. [2020-10-26 22:42:13,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:42:13,609 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 198 [2020-10-26 22:42:13,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:42:13,626 INFO L225 Difference]: With dead ends: 3411 [2020-10-26 22:42:13,626 INFO L226 Difference]: Without dead ends: 2195 [2020-10-26 22:42:13,629 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:42:13,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2195 states. [2020-10-26 22:42:13,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2195 to 1994. [2020-10-26 22:42:13,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1994 states. [2020-10-26 22:42:13,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 2468 transitions. [2020-10-26 22:42:13,715 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 2468 transitions. Word has length 198 [2020-10-26 22:42:13,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:42:13,717 INFO L481 AbstractCegarLoop]: Abstraction has 1994 states and 2468 transitions. [2020-10-26 22:42:13,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:42:13,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 2468 transitions. [2020-10-26 22:42:13,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-10-26 22:42:13,724 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:42:13,724 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:42:13,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 22:42:13,725 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:42:13,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:42:13,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1680334530, now seen corresponding path program 1 times [2020-10-26 22:42:13,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:42:13,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977644695] [2020-10-26 22:42:13,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:42:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:13,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:13,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:14,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:16,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:16,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-10-26 22:42:16,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:42:16,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2666 [2020-10-26 22:42:16,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:16,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:16,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-26 22:42:16,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-26 22:42:16,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:16,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:42:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:16,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:16,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:16,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:42:16,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:16,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:42:16,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:16,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:42:16,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:16,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:42:16,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:16,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:42:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:16,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:16,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:16,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-26 22:42:16,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:16,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-26 22:42:16,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:16,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:42:16,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:16,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-26 22:42:16,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:16,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-26 22:42:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:16,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:17,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:17,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-26 22:42:17,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:17,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-26 22:42:17,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:17,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:17,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:42:17,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-26 22:42:17,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:17,658 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 189 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:42:17,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977644695] [2020-10-26 22:42:17,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:42:17,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:42:17,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234942284] [2020-10-26 22:42:17,666 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:42:17,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:42:17,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:42:17,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:42:17,668 INFO L87 Difference]: Start difference. First operand 1994 states and 2468 transitions. Second operand 7 states. [2020-10-26 22:42:17,803 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-26 22:42:21,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:42:21,057 INFO L93 Difference]: Finished difference Result 4799 states and 6243 transitions. [2020-10-26 22:42:21,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 22:42:21,059 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 257 [2020-10-26 22:42:21,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:42:21,077 INFO L225 Difference]: With dead ends: 4799 [2020-10-26 22:42:21,078 INFO L226 Difference]: Without dead ends: 3189 [2020-10-26 22:42:21,083 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-26 22:42:21,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3189 states. [2020-10-26 22:42:21,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3189 to 3166. [2020-10-26 22:42:21,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3166 states. [2020-10-26 22:42:21,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3166 states to 3166 states and 3871 transitions. [2020-10-26 22:42:21,191 INFO L78 Accepts]: Start accepts. Automaton has 3166 states and 3871 transitions. Word has length 257 [2020-10-26 22:42:21,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:42:21,191 INFO L481 AbstractCegarLoop]: Abstraction has 3166 states and 3871 transitions. [2020-10-26 22:42:21,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:42:21,192 INFO L276 IsEmpty]: Start isEmpty. Operand 3166 states and 3871 transitions. [2020-10-26 22:42:21,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-10-26 22:42:21,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:42:21,198 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:42:21,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 22:42:21,199 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:42:21,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:42:21,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1691808810, now seen corresponding path program 1 times [2020-10-26 22:42:21,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:42:21,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230925730] [2020-10-26 22:42:21,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:42:21,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:21,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:21,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:22,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:22,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-10-26 22:42:22,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:42:22,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1144 [2020-10-26 22:42:22,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:22,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:22,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-26 22:42:22,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 22:42:22,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:42:22,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:42:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:22,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:22,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:22,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:42:22,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:22,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 22:42:22,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:22,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:42:22,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:22,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:42:22,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:22,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:42:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:22,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:22,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:22,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-26 22:42:22,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:22,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-26 22:42:22,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:22,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:42:22,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:22,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:42:22,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:22,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-26 22:42:22,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:22,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:22,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:22,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-26 22:42:22,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:22,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-26 22:42:22,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:22,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:42:22,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:22,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-26 22:42:22,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:23,024 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-26 22:42:23,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230925730] [2020-10-26 22:42:23,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:42:23,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:42:23,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604438680] [2020-10-26 22:42:23,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:42:23,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:42:23,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:42:23,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:42:23,035 INFO L87 Difference]: Start difference. First operand 3166 states and 3871 transitions. Second operand 5 states. [2020-10-26 22:42:25,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:42:25,061 INFO L93 Difference]: Finished difference Result 4807 states and 5971 transitions. [2020-10-26 22:42:25,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:42:25,062 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 267 [2020-10-26 22:42:25,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:42:25,078 INFO L225 Difference]: With dead ends: 4807 [2020-10-26 22:42:25,079 INFO L226 Difference]: Without dead ends: 3172 [2020-10-26 22:42:25,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:42:25,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3172 states. [2020-10-26 22:42:25,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3172 to 3164. [2020-10-26 22:42:25,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3164 states. [2020-10-26 22:42:25,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3164 states to 3164 states and 3854 transitions. [2020-10-26 22:42:25,172 INFO L78 Accepts]: Start accepts. Automaton has 3164 states and 3854 transitions. Word has length 267 [2020-10-26 22:42:25,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:42:25,173 INFO L481 AbstractCegarLoop]: Abstraction has 3164 states and 3854 transitions. [2020-10-26 22:42:25,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:42:25,173 INFO L276 IsEmpty]: Start isEmpty. Operand 3164 states and 3854 transitions. [2020-10-26 22:42:25,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-10-26 22:42:25,179 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:42:25,179 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:42:25,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 22:42:25,180 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:42:25,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:42:25,180 INFO L82 PathProgramCache]: Analyzing trace with hash 839011478, now seen corresponding path program 1 times [2020-10-26 22:42:25,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:42:25,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587465457] [2020-10-26 22:42:25,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:42:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:25,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:25,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:25,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:28,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:28,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-10-26 22:42:28,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:42:28,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3241 [2020-10-26 22:42:28,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:28,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:28,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-26 22:42:28,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-26 22:42:28,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:28,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:42:28,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:28,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:28,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:28,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:42:28,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:28,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 22:42:28,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:28,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:42:28,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:28,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:42:28,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:28,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:42:28,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:28,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:28,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:28,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-26 22:42:28,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:28,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-26 22:42:28,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:28,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:42:28,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:28,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-26 22:42:28,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:28,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-26 22:42:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:28,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:29,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:29,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-26 22:42:29,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:29,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-26 22:42:29,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:29,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:29,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:42:29,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-26 22:42:29,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:29,247 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 189 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:42:29,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [587465457] [2020-10-26 22:42:29,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:42:29,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:42:29,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679658612] [2020-10-26 22:42:29,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:42:29,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:42:29,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:42:29,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:42:29,250 INFO L87 Difference]: Start difference. First operand 3164 states and 3854 transitions. Second operand 7 states. [2020-10-26 22:42:32,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:42:32,776 INFO L93 Difference]: Finished difference Result 5382 states and 6639 transitions. [2020-10-26 22:42:32,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 22:42:32,783 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 267 [2020-10-26 22:42:32,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:42:32,804 INFO L225 Difference]: With dead ends: 5382 [2020-10-26 22:42:32,804 INFO L226 Difference]: Without dead ends: 3764 [2020-10-26 22:42:32,810 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:42:32,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3764 states. [2020-10-26 22:42:32,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3764 to 3552. [2020-10-26 22:42:32,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3552 states. [2020-10-26 22:42:32,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3552 states to 3552 states and 4335 transitions. [2020-10-26 22:42:32,913 INFO L78 Accepts]: Start accepts. Automaton has 3552 states and 4335 transitions. Word has length 267 [2020-10-26 22:42:32,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:42:32,914 INFO L481 AbstractCegarLoop]: Abstraction has 3552 states and 4335 transitions. [2020-10-26 22:42:32,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:42:32,914 INFO L276 IsEmpty]: Start isEmpty. Operand 3552 states and 4335 transitions. [2020-10-26 22:42:32,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2020-10-26 22:42:32,921 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:42:32,921 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:42:32,922 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 22:42:32,922 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:42:32,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:42:32,923 INFO L82 PathProgramCache]: Analyzing trace with hash 3141880, now seen corresponding path program 1 times [2020-10-26 22:42:32,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:42:32,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024603981] [2020-10-26 22:42:32,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:42:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:33,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:33,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:33,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:35,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:35,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-26 22:42:35,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:42:35,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2687 [2020-10-26 22:42:35,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:35,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:35,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-10-26 22:42:35,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-26 22:42:35,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:35,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:42:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:35,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:35,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:35,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:42:35,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:35,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:42:35,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:35,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:42:35,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:35,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:42:35,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:35,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:42:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:35,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:36,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:36,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-26 22:42:36,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:36,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-26 22:42:36,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:36,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:42:36,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:36,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 22:42:36,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:36,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-26 22:42:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:36,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:36,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:36,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-26 22:42:36,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:36,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-26 22:42:36,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:36,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:36,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:42:36,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-26 22:42:36,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:36,486 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 189 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:42:36,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024603981] [2020-10-26 22:42:36,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:42:36,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:42:36,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877541452] [2020-10-26 22:42:36,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:42:36,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:42:36,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:42:36,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:42:36,489 INFO L87 Difference]: Start difference. First operand 3552 states and 4335 transitions. Second operand 7 states. [2020-10-26 22:42:39,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:42:39,983 INFO L93 Difference]: Finished difference Result 7551 states and 9333 transitions. [2020-10-26 22:42:39,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:42:39,991 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 288 [2020-10-26 22:42:39,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:42:40,012 INFO L225 Difference]: With dead ends: 7551 [2020-10-26 22:42:40,012 INFO L226 Difference]: Without dead ends: 4193 [2020-10-26 22:42:40,023 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:42:40,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4193 states. [2020-10-26 22:42:40,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4193 to 4162. [2020-10-26 22:42:40,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4162 states. [2020-10-26 22:42:40,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4162 states to 4162 states and 5062 transitions. [2020-10-26 22:42:40,134 INFO L78 Accepts]: Start accepts. Automaton has 4162 states and 5062 transitions. Word has length 288 [2020-10-26 22:42:40,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:42:40,135 INFO L481 AbstractCegarLoop]: Abstraction has 4162 states and 5062 transitions. [2020-10-26 22:42:40,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:42:40,135 INFO L276 IsEmpty]: Start isEmpty. Operand 4162 states and 5062 transitions. [2020-10-26 22:42:40,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2020-10-26 22:42:40,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:42:40,143 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:42:40,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 22:42:40,144 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:42:40,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:42:40,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1581139126, now seen corresponding path program 1 times [2020-10-26 22:42:40,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:42:40,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [464923803] [2020-10-26 22:42:40,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:42:40,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:40,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:40,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:41,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:41,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 308 [2020-10-26 22:42:41,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:42:41,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 885 [2020-10-26 22:42:41,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:41,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:41,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 239 [2020-10-26 22:42:41,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:42:41,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:42:41,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:42:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:41,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:41,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:41,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:42:41,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:41,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 22:42:41,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:41,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:42:41,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:41,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:42:41,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:42:41,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:42:41,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:41,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:41,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:41,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-26 22:42:41,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:41,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-26 22:42:41,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:41,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:42:41,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:41,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:42:41,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:41,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-26 22:42:41,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:41,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:41,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:41,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-26 22:42:41,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:41,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-26 22:42:41,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:41,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:42:41,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:41,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-26 22:42:41,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:41,871 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-10-26 22:42:41,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [464923803] [2020-10-26 22:42:41,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:42:41,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:42:41,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700125408] [2020-10-26 22:42:41,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:42:41,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:42:41,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:42:41,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:42:41,881 INFO L87 Difference]: Start difference. First operand 4162 states and 5062 transitions. Second operand 5 states. [2020-10-26 22:42:44,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:42:44,793 INFO L93 Difference]: Finished difference Result 8313 states and 10420 transitions. [2020-10-26 22:42:44,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:42:44,795 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 294 [2020-10-26 22:42:44,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:42:44,825 INFO L225 Difference]: With dead ends: 8313 [2020-10-26 22:42:44,826 INFO L226 Difference]: Without dead ends: 6085 [2020-10-26 22:42:44,834 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:42:44,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6085 states. [2020-10-26 22:42:44,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6085 to 4934. [2020-10-26 22:42:44,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4934 states. [2020-10-26 22:42:44,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4934 states to 4934 states and 6066 transitions. [2020-10-26 22:42:44,978 INFO L78 Accepts]: Start accepts. Automaton has 4934 states and 6066 transitions. Word has length 294 [2020-10-26 22:42:44,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:42:44,979 INFO L481 AbstractCegarLoop]: Abstraction has 4934 states and 6066 transitions. [2020-10-26 22:42:44,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:42:44,979 INFO L276 IsEmpty]: Start isEmpty. Operand 4934 states and 6066 transitions. [2020-10-26 22:42:44,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2020-10-26 22:42:44,988 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:42:44,989 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:42:44,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 22:42:44,989 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:42:44,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:42:44,990 INFO L82 PathProgramCache]: Analyzing trace with hash 118528900, now seen corresponding path program 1 times [2020-10-26 22:42:44,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:42:44,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2122700110] [2020-10-26 22:42:44,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:42:45,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:45,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:45,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:45,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:47,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:47,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 308 [2020-10-26 22:42:47,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:42:47,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2402 [2020-10-26 22:42:47,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:47,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:47,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-10-26 22:42:47,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:42:47,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:47,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:42:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:47,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:47,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:47,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:42:47,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:47,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:42:47,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:47,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:42:47,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:47,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:42:47,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:47,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:42:47,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:47,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:47,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:47,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-26 22:42:47,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:47,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-26 22:42:47,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:47,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:42:47,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:47,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 22:42:47,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:47,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-26 22:42:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:47,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:47,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:47,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-26 22:42:47,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:47,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-26 22:42:47,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:47,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:47,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:42:47,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-26 22:42:47,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:48,074 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 195 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:42:48,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2122700110] [2020-10-26 22:42:48,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:42:48,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:42:48,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383695884] [2020-10-26 22:42:48,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:42:48,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:42:48,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:42:48,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:42:48,077 INFO L87 Difference]: Start difference. First operand 4934 states and 6066 transitions. Second operand 7 states. [2020-10-26 22:42:51,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:42:51,766 INFO L93 Difference]: Finished difference Result 11542 states and 15102 transitions. [2020-10-26 22:42:51,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:42:51,767 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 294 [2020-10-26 22:42:51,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:42:51,809 INFO L225 Difference]: With dead ends: 11542 [2020-10-26 22:42:51,810 INFO L226 Difference]: Without dead ends: 6992 [2020-10-26 22:42:51,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:42:51,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6992 states. [2020-10-26 22:42:51,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6992 to 6888. [2020-10-26 22:42:51,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6888 states. [2020-10-26 22:42:52,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6888 states to 6888 states and 8443 transitions. [2020-10-26 22:42:52,018 INFO L78 Accepts]: Start accepts. Automaton has 6888 states and 8443 transitions. Word has length 294 [2020-10-26 22:42:52,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:42:52,019 INFO L481 AbstractCegarLoop]: Abstraction has 6888 states and 8443 transitions. [2020-10-26 22:42:52,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:42:52,019 INFO L276 IsEmpty]: Start isEmpty. Operand 6888 states and 8443 transitions. [2020-10-26 22:42:52,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-10-26 22:42:52,030 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:42:52,033 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:42:52,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 22:42:52,033 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:42:52,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:42:52,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1899807079, now seen corresponding path program 1 times [2020-10-26 22:42:52,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:42:52,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2124967739] [2020-10-26 22:42:52,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:42:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:52,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:52,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:52,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:54,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:54,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 340 [2020-10-26 22:42:54,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:42:54,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2541 [2020-10-26 22:42:54,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:54,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:54,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 195 [2020-10-26 22:42:54,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-26 22:42:54,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:54,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:42:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:54,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:54,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:54,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:42:54,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:54,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 22:42:54,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:54,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:42:54,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:54,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:42:54,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:42:54,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:42:54,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:55,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:55,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:55,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-26 22:42:55,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:55,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-26 22:42:55,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:55,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:42:55,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:55,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-26 22:42:55,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:55,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-26 22:42:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:55,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:55,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:55,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-26 22:42:55,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:55,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-26 22:42:55,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:55,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:55,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:42:55,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-26 22:42:55,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:55,652 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 189 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:42:55,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2124967739] [2020-10-26 22:42:55,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:42:55,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:42:55,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959793678] [2020-10-26 22:42:55,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:42:55,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:42:55,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:42:55,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:42:55,655 INFO L87 Difference]: Start difference. First operand 6888 states and 8443 transitions. Second operand 7 states. [2020-10-26 22:42:58,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:42:58,868 INFO L93 Difference]: Finished difference Result 12075 states and 15070 transitions. [2020-10-26 22:42:58,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:42:58,869 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 326 [2020-10-26 22:42:58,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:42:58,899 INFO L225 Difference]: With dead ends: 12075 [2020-10-26 22:42:58,899 INFO L226 Difference]: Without dead ends: 7885 [2020-10-26 22:42:58,912 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:42:58,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7885 states. [2020-10-26 22:42:59,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7885 to 7473. [2020-10-26 22:42:59,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7473 states. [2020-10-26 22:42:59,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7473 states to 7473 states and 9134 transitions. [2020-10-26 22:42:59,095 INFO L78 Accepts]: Start accepts. Automaton has 7473 states and 9134 transitions. Word has length 326 [2020-10-26 22:42:59,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:42:59,096 INFO L481 AbstractCegarLoop]: Abstraction has 7473 states and 9134 transitions. [2020-10-26 22:42:59,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:42:59,096 INFO L276 IsEmpty]: Start isEmpty. Operand 7473 states and 9134 transitions. [2020-10-26 22:42:59,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-10-26 22:42:59,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:42:59,108 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:42:59,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 22:42:59,109 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:42:59,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:42:59,109 INFO L82 PathProgramCache]: Analyzing trace with hash 2132090035, now seen corresponding path program 1 times [2020-10-26 22:42:59,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:42:59,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1532354382] [2020-10-26 22:42:59,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:42:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:59,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:59,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:59,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:00,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:02,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:02,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 346 [2020-10-26 22:43:02,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:43:02,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2857 [2020-10-26 22:43:02,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:02,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:43:02,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 195 [2020-10-26 22:43:02,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-26 22:43:02,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:02,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:43:02,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:02,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:02,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:02,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:43:02,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:02,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 22:43:02,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:02,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:43:02,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:43:02,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:43:02,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:02,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:43:02,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:02,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:02,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:02,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-26 22:43:02,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:02,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-26 22:43:02,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:02,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:43:02,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:43:02,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-26 22:43:02,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:02,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-26 22:43:02,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:02,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:02,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:02,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:02,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-26 22:43:02,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:43:02,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-26 22:43:02,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:02,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:43:02,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:43:02,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-26 22:43:02,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:02,717 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 134 proven. 59 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 22:43:02,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1532354382] [2020-10-26 22:43:02,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:43:02,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 22:43:02,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224782353] [2020-10-26 22:43:02,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 22:43:02,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:43:02,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 22:43:02,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:43:02,727 INFO L87 Difference]: Start difference. First operand 7473 states and 9134 transitions. Second operand 6 states. [2020-10-26 22:43:05,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:43:05,700 INFO L93 Difference]: Finished difference Result 16700 states and 20887 transitions. [2020-10-26 22:43:05,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 22:43:05,701 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 332 [2020-10-26 22:43:05,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:43:05,745 INFO L225 Difference]: With dead ends: 16700 [2020-10-26 22:43:05,745 INFO L226 Difference]: Without dead ends: 9611 [2020-10-26 22:43:05,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:43:05,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9611 states. [2020-10-26 22:43:05,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9611 to 9592. [2020-10-26 22:43:05,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9592 states. [2020-10-26 22:43:05,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9592 states to 9592 states and 11994 transitions. [2020-10-26 22:43:05,998 INFO L78 Accepts]: Start accepts. Automaton has 9592 states and 11994 transitions. Word has length 332 [2020-10-26 22:43:05,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:43:05,999 INFO L481 AbstractCegarLoop]: Abstraction has 9592 states and 11994 transitions. [2020-10-26 22:43:05,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 22:43:05,999 INFO L276 IsEmpty]: Start isEmpty. Operand 9592 states and 11994 transitions. [2020-10-26 22:43:06,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2020-10-26 22:43:06,020 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:43:06,021 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:43:06,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 22:43:06,021 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:43:06,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:43:06,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1377998541, now seen corresponding path program 1 times [2020-10-26 22:43:06,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:43:06,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913853314] [2020-10-26 22:43:06,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:43:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:06,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:06,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:06,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:07,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:08,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:08,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 384 [2020-10-26 22:43:08,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:43:08,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2700 [2020-10-26 22:43:08,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:08,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:43:08,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 239 [2020-10-26 22:43:08,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-26 22:43:08,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:08,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:43:08,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:08,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:08,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:08,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:43:08,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:08,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 22:43:08,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:08,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:43:08,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:43:08,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:43:08,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:08,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:43:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:09,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:09,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:09,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-26 22:43:09,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:09,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-26 22:43:09,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:09,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:43:09,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:43:09,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:43:09,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:09,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-26 22:43:09,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:09,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:09,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:09,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-26 22:43:09,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:09,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-26 22:43:09,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:09,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:43:09,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:43:09,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-26 22:43:09,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:09,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-10-26 22:43:09,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:09,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:09,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:09,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:09,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-26 22:43:09,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:43:09,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-26 22:43:09,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:09,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:43:09,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:43:09,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-26 22:43:09,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:09,831 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 324 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-26 22:43:09,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1913853314] [2020-10-26 22:43:09,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:43:09,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 22:43:09,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595163405] [2020-10-26 22:43:09,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 22:43:09,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:43:09,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 22:43:09,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:43:09,833 INFO L87 Difference]: Start difference. First operand 9592 states and 11994 transitions. Second operand 6 states. [2020-10-26 22:43:10,061 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-26 22:43:11,465 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-26 22:43:12,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:43:12,803 INFO L93 Difference]: Finished difference Result 15955 states and 20231 transitions. [2020-10-26 22:43:12,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 22:43:12,805 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 368 [2020-10-26 22:43:12,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:43:12,836 INFO L225 Difference]: With dead ends: 15955 [2020-10-26 22:43:12,836 INFO L226 Difference]: Without dead ends: 9619 [2020-10-26 22:43:12,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-26 22:43:12,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9619 states. [2020-10-26 22:43:13,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9619 to 9590. [2020-10-26 22:43:13,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9590 states. [2020-10-26 22:43:13,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9590 states to 9590 states and 11953 transitions. [2020-10-26 22:43:13,065 INFO L78 Accepts]: Start accepts. Automaton has 9590 states and 11953 transitions. Word has length 368 [2020-10-26 22:43:13,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:43:13,066 INFO L481 AbstractCegarLoop]: Abstraction has 9590 states and 11953 transitions. [2020-10-26 22:43:13,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 22:43:13,066 INFO L276 IsEmpty]: Start isEmpty. Operand 9590 states and 11953 transitions. [2020-10-26 22:43:13,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2020-10-26 22:43:13,086 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:43:13,086 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:43:13,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 22:43:13,087 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:43:13,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:43:13,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1639568085, now seen corresponding path program 1 times [2020-10-26 22:43:13,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:43:13,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1589760122] [2020-10-26 22:43:13,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:43:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:13,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:13,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:13,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:16,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:16,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 390 [2020-10-26 22:43:16,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:43:16,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2865 [2020-10-26 22:43:16,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:16,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:43:16,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-26 22:43:16,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-26 22:43:16,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:16,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:43:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:16,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:16,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:16,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:43:16,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:16,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:43:16,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:16,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:43:16,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:43:16,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:43:16,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:16,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:43:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:16,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:16,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:16,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-26 22:43:16,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:16,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-26 22:43:16,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:16,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:43:16,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:43:16,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-26 22:43:16,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:16,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 22:43:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:16,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:16,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:16,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-26 22:43:16,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:16,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-26 22:43:16,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:16,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:43:16,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:43:16,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-26 22:43:16,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:16,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-10-26 22:43:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:16,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:16,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:16,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-26 22:43:16,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:16,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 22:43:16,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:16,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:43:16,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-26 22:43:16,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:43:16,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:16,604 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 280 proven. 73 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-10-26 22:43:16,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1589760122] [2020-10-26 22:43:16,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:43:16,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:43:16,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92757530] [2020-10-26 22:43:16,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:43:16,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:43:16,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:43:16,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:43:16,606 INFO L87 Difference]: Start difference. First operand 9590 states and 11953 transitions. Second operand 7 states. [2020-10-26 22:43:21,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:43:21,671 INFO L93 Difference]: Finished difference Result 21076 states and 26709 transitions. [2020-10-26 22:43:21,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:43:21,672 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 374 [2020-10-26 22:43:21,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:43:21,708 INFO L225 Difference]: With dead ends: 21076 [2020-10-26 22:43:21,708 INFO L226 Difference]: Without dead ends: 11870 [2020-10-26 22:43:21,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:43:21,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11870 states. [2020-10-26 22:43:21,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11870 to 11282. [2020-10-26 22:43:21,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11282 states. [2020-10-26 22:43:21,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11282 states to 11282 states and 13802 transitions. [2020-10-26 22:43:21,973 INFO L78 Accepts]: Start accepts. Automaton has 11282 states and 13802 transitions. Word has length 374 [2020-10-26 22:43:21,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:43:21,973 INFO L481 AbstractCegarLoop]: Abstraction has 11282 states and 13802 transitions. [2020-10-26 22:43:21,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:43:21,974 INFO L276 IsEmpty]: Start isEmpty. Operand 11282 states and 13802 transitions. [2020-10-26 22:43:21,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2020-10-26 22:43:21,988 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:43:21,989 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:43:21,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 22:43:21,989 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:43:21,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:43:21,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1794482977, now seen corresponding path program 1 times [2020-10-26 22:43:21,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:43:21,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2056509435] [2020-10-26 22:43:21,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:43:22,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:22,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:22,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:22,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:25,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:25,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 404 [2020-10-26 22:43:25,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:43:25,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3244 [2020-10-26 22:43:25,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:25,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:43:25,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-26 22:43:25,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-26 22:43:25,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:25,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:43:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:25,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:25,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:25,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:43:25,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:25,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 22:43:25,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:25,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:43:25,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:43:25,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:43:25,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:25,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:43:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:25,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:25,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:25,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-26 22:43:25,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:25,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 22:43:25,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:25,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:43:25,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:43:25,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:43:25,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:25,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-26 22:43:25,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:25,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:25,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:25,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-26 22:43:25,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:25,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-26 22:43:25,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:25,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:43:25,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:43:25,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-26 22:43:25,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:25,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-26 22:43:25,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:25,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:25,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:25,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-26 22:43:25,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:25,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-26 22:43:25,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:25,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:43:25,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:43:25,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-26 22:43:25,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:25,978 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 324 proven. 2 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-26 22:43:25,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2056509435] [2020-10-26 22:43:25,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:43:25,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:43:25,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852113723] [2020-10-26 22:43:25,979 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:43:25,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:43:25,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:43:25,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:43:25,980 INFO L87 Difference]: Start difference. First operand 11282 states and 13802 transitions. Second operand 7 states. [2020-10-26 22:43:30,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:43:30,183 INFO L93 Difference]: Finished difference Result 19528 states and 24250 transitions. [2020-10-26 22:43:30,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:43:30,188 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 388 [2020-10-26 22:43:30,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:43:30,226 INFO L225 Difference]: With dead ends: 19528 [2020-10-26 22:43:30,227 INFO L226 Difference]: Without dead ends: 11700 [2020-10-26 22:43:30,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:43:30,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11700 states. [2020-10-26 22:43:30,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11700 to 11674. [2020-10-26 22:43:30,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11674 states. [2020-10-26 22:43:30,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11674 states to 11674 states and 14265 transitions. [2020-10-26 22:43:30,486 INFO L78 Accepts]: Start accepts. Automaton has 11674 states and 14265 transitions. Word has length 388 [2020-10-26 22:43:30,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:43:30,487 INFO L481 AbstractCegarLoop]: Abstraction has 11674 states and 14265 transitions. [2020-10-26 22:43:30,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:43:30,488 INFO L276 IsEmpty]: Start isEmpty. Operand 11674 states and 14265 transitions. [2020-10-26 22:43:30,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-10-26 22:43:30,504 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:43:30,504 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:43:30,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 22:43:30,505 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:43:30,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:43:30,505 INFO L82 PathProgramCache]: Analyzing trace with hash -2077041905, now seen corresponding path program 1 times [2020-10-26 22:43:30,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:43:30,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508792404] [2020-10-26 22:43:30,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:43:30,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:30,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:30,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:31,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:33,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:33,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 426 [2020-10-26 22:43:33,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:43:33,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2960 [2020-10-26 22:43:33,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:33,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:43:33,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 281 [2020-10-26 22:43:33,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-26 22:43:33,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:33,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:43:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:33,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:33,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:33,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:43:33,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:33,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 22:43:33,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:33,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:43:33,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:43:33,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:43:33,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:33,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:43:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:33,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:33,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:33,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-26 22:43:33,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:33,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-26 22:43:33,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:33,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:43:33,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:43:33,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:43:33,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:33,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-26 22:43:33,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:33,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:33,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:33,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-26 22:43:33,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:33,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-26 22:43:33,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:33,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:43:33,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:43:33,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-26 22:43:33,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:34,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2020-10-26 22:43:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:34,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:34,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:34,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-26 22:43:34,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:34,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-26 22:43:34,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:34,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:43:34,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:43:34,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-26 22:43:34,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:34,400 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 324 proven. 2 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2020-10-26 22:43:34,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [508792404] [2020-10-26 22:43:34,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:43:34,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:43:34,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421464907] [2020-10-26 22:43:34,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:43:34,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:43:34,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:43:34,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:43:34,402 INFO L87 Difference]: Start difference. First operand 11674 states and 14265 transitions. Second operand 7 states. [2020-10-26 22:43:38,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:43:38,319 INFO L93 Difference]: Finished difference Result 23779 states and 29494 transitions. [2020-10-26 22:43:38,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:43:38,320 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 410 [2020-10-26 22:43:38,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:43:38,359 INFO L225 Difference]: With dead ends: 23779 [2020-10-26 22:43:38,359 INFO L226 Difference]: Without dead ends: 12489 [2020-10-26 22:43:38,376 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:43:38,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12489 states. [2020-10-26 22:43:38,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12489 to 12268. [2020-10-26 22:43:38,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12268 states. [2020-10-26 22:43:38,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12268 states to 12268 states and 14861 transitions. [2020-10-26 22:43:38,629 INFO L78 Accepts]: Start accepts. Automaton has 12268 states and 14861 transitions. Word has length 410 [2020-10-26 22:43:38,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:43:38,629 INFO L481 AbstractCegarLoop]: Abstraction has 12268 states and 14861 transitions. [2020-10-26 22:43:38,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:43:38,630 INFO L276 IsEmpty]: Start isEmpty. Operand 12268 states and 14861 transitions. [2020-10-26 22:43:38,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2020-10-26 22:43:38,652 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:43:38,652 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:43:38,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 22:43:38,652 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:43:38,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:43:38,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1370742098, now seen corresponding path program 1 times [2020-10-26 22:43:38,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:43:38,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57605238] [2020-10-26 22:43:38,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:43:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:38,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:38,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:39,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:39,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:41,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:41,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 459 [2020-10-26 22:43:41,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:43:41,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2565 [2020-10-26 22:43:41,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:41,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 22:43:41,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-26 22:43:41,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 315 [2020-10-26 22:43:41,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:41,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:43:41,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:41,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:41,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:41,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:43:41,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:41,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 22:43:41,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:41,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:43:41,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:43:41,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:43:41,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:41,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:43:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:41,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:41,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:41,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-26 22:43:41,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:41,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-26 22:43:41,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:41,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:43:41,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:43:41,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-26 22:43:41,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:41,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 22:43:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:41,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:41,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:41,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:41,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-26 22:43:41,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:43:41,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-26 22:43:41,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:41,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:43:41,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:43:41,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-26 22:43:41,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:41,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2020-10-26 22:43:41,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:41,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:42,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:42,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:42,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-26 22:43:42,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:43:42,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-26 22:43:42,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:42,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:43:42,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:43:42,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-26 22:43:42,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:42,435 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 286 proven. 117 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2020-10-26 22:43:42,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57605238] [2020-10-26 22:43:42,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:43:42,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:43:42,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961727214] [2020-10-26 22:43:42,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:43:42,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:43:42,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:43:42,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:43:42,438 INFO L87 Difference]: Start difference. First operand 12268 states and 14861 transitions. Second operand 7 states. [2020-10-26 22:43:46,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:43:46,770 INFO L93 Difference]: Finished difference Result 24494 states and 31691 transitions. [2020-10-26 22:43:46,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:43:46,772 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 443 [2020-10-26 22:43:46,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:43:46,773 INFO L225 Difference]: With dead ends: 24494 [2020-10-26 22:43:46,774 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 22:43:46,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:43:46,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 22:43:46,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 22:43:46,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 22:43:46,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 22:43:46,802 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 443 [2020-10-26 22:43:46,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:43:46,802 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 22:43:46,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:43:46,802 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 22:43:46,803 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 22:43:46,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-26 22:43:46,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 22:43:48,908 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 370 DAG size of output: 299 [2020-10-26 22:43:49,475 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 370 DAG size of output: 299 [2020-10-26 22:43:50,180 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 26 [2020-10-26 22:43:51,980 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 384 DAG size of output: 48 [2020-10-26 22:43:53,474 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 262 DAG size of output: 34 [2020-10-26 22:43:55,086 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 262 DAG size of output: 34 [2020-10-26 22:43:55,815 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 25 [2020-10-26 22:43:55,819 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 22:43:55,820 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 22:43:55,820 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 22:43:55,820 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 22:43:55,821 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:43:55,821 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~inputA~0 |old(~inputA~0)|) (= ~a25~0 |old(~a25~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a23~0 |old(~a23~0)|) (= ~a8~0 |old(~a8~0)|) (= ~a29~0 |old(~a29~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= |old(#valid)| |#valid|) (= ~a3~0 |old(~a3~0)|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|)) [2020-10-26 22:43:55,821 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:43:55,821 INFO L274 CegarLoopResult]: For program point L960(lines 960 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,821 INFO L274 CegarLoopResult]: For program point L696(lines 696 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,821 INFO L274 CegarLoopResult]: For program point L630(lines 630 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,822 INFO L274 CegarLoopResult]: For program point L895(lines 895 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,822 INFO L274 CegarLoopResult]: For program point L697(lines 697 707) no Hoare annotation was computed. [2020-10-26 22:43:55,822 INFO L274 CegarLoopResult]: For program point L697-2(lines 697 707) no Hoare annotation was computed. [2020-10-26 22:43:55,822 INFO L274 CegarLoopResult]: For program point L367(lines 367 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,822 INFO L274 CegarLoopResult]: For program point L301(lines 301 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,822 INFO L274 CegarLoopResult]: For program point L235(lines 235 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,822 INFO L274 CegarLoopResult]: For program point L169-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,822 INFO L274 CegarLoopResult]: For program point L103-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,822 INFO L274 CegarLoopResult]: For program point L37-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,822 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-10-26 22:43:55,823 INFO L274 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-10-26 22:43:55,823 INFO L274 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-10-26 22:43:55,823 INFO L274 CegarLoopResult]: For program point L568(lines 568 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,823 INFO L274 CegarLoopResult]: For program point L502(lines 502 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,823 INFO L274 CegarLoopResult]: For program point L172-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,823 INFO L274 CegarLoopResult]: For program point L106-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,823 INFO L274 CegarLoopResult]: For program point L40-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,823 INFO L274 CegarLoopResult]: For program point L965(lines 965 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,823 INFO L274 CegarLoopResult]: For program point L833(lines 833 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,823 INFO L274 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-10-26 22:43:55,824 INFO L274 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-10-26 22:43:55,824 INFO L274 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-10-26 22:43:55,824 INFO L274 CegarLoopResult]: For program point L900(lines 900 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,824 INFO L274 CegarLoopResult]: For program point L438(lines 438 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,824 INFO L274 CegarLoopResult]: For program point L372(lines 372 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,824 INFO L274 CegarLoopResult]: For program point L637(lines 637 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,824 INFO L274 CegarLoopResult]: For program point L307(lines 307 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,824 INFO L274 CegarLoopResult]: For program point L175-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,824 INFO L274 CegarLoopResult]: For program point L109-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,825 INFO L274 CegarLoopResult]: For program point L43-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,825 INFO L274 CegarLoopResult]: For program point L242(lines 242 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,825 INFO L274 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-10-26 22:43:55,825 INFO L274 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-10-26 22:43:55,825 INFO L274 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-10-26 22:43:55,825 INFO L274 CegarLoopResult]: For program point L771(lines 771 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,825 INFO L274 CegarLoopResult]: For program point L838(lines 838 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,825 INFO L274 CegarLoopResult]: For program point L574(lines 574 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,825 INFO L274 CegarLoopResult]: For program point L178-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,825 INFO L274 CegarLoopResult]: For program point L112-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,826 INFO L274 CegarLoopResult]: For program point L46-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,826 INFO L274 CegarLoopResult]: For program point L971(lines 971 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,826 INFO L274 CegarLoopResult]: For program point L905(lines 905 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,826 INFO L274 CegarLoopResult]: For program point L509(lines 509 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,826 INFO L274 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-10-26 22:43:55,826 INFO L274 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-10-26 22:43:55,826 INFO L274 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-10-26 22:43:55,826 INFO L274 CegarLoopResult]: For program point L972(lines 972 982) no Hoare annotation was computed. [2020-10-26 22:43:55,826 INFO L274 CegarLoopResult]: For program point L906(lines 906 916) no Hoare annotation was computed. [2020-10-26 22:43:55,826 INFO L274 CegarLoopResult]: For program point L972-2(lines 972 982) no Hoare annotation was computed. [2020-10-26 22:43:55,826 INFO L274 CegarLoopResult]: For program point L906-2(lines 906 916) no Hoare annotation was computed. [2020-10-26 22:43:55,827 INFO L274 CegarLoopResult]: For program point L708(lines 708 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,827 INFO L274 CegarLoopResult]: For program point L312(lines 312 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,827 INFO L274 CegarLoopResult]: For program point L577(lines 577 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,827 INFO L274 CegarLoopResult]: For program point L445(lines 445 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,827 INFO L274 CegarLoopResult]: For program point L379(lines 379 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,827 INFO L274 CegarLoopResult]: For program point L181-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,827 INFO L274 CegarLoopResult]: For program point L115-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,827 INFO L274 CegarLoopResult]: For program point L49-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,827 INFO L274 CegarLoopResult]: For program point L776(lines 776 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,827 INFO L274 CegarLoopResult]: For program point L644(lines 644 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,827 INFO L274 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-10-26 22:43:55,828 INFO L274 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-10-26 22:43:55,828 INFO L274 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-10-26 22:43:55,828 INFO L274 CegarLoopResult]: For program point L843(lines 843 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,828 INFO L274 CegarLoopResult]: For program point L249(lines 249 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,828 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,828 INFO L274 CegarLoopResult]: For program point L184-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,828 INFO L274 CegarLoopResult]: For program point L118-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,828 INFO L274 CegarLoopResult]: For program point L52-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,828 INFO L274 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-10-26 22:43:55,828 INFO L274 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-10-26 22:43:55,828 INFO L274 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-10-26 22:43:55,828 INFO L274 CegarLoopResult]: For program point L714(lines 714 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,828 INFO L274 CegarLoopResult]: For program point L516(lines 516 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,828 INFO L274 CegarLoopResult]: For program point L649(lines 649 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,829 INFO L274 CegarLoopResult]: For program point L583(lines 583 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,829 INFO L274 CegarLoopResult]: For program point L517(lines 517 527) no Hoare annotation was computed. [2020-10-26 22:43:55,829 INFO L274 CegarLoopResult]: For program point L517-2(lines 517 527) no Hoare annotation was computed. [2020-10-26 22:43:55,829 INFO L274 CegarLoopResult]: For program point L319(lines 319 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,829 INFO L274 CegarLoopResult]: For program point L187-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,829 INFO L274 CegarLoopResult]: For program point L121-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,829 INFO L274 CegarLoopResult]: For program point L55-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,829 INFO L274 CegarLoopResult]: For program point L848(lines 848 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,829 INFO L274 CegarLoopResult]: For program point L782(lines 782 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,829 INFO L274 CegarLoopResult]: For program point L650(lines 650 659) no Hoare annotation was computed. [2020-10-26 22:43:55,829 INFO L274 CegarLoopResult]: For program point L650-2(lines 650 659) no Hoare annotation was computed. [2020-10-26 22:43:55,829 INFO L274 CegarLoopResult]: For program point L452(lines 452 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,830 INFO L274 CegarLoopResult]: For program point L386(lines 386 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,830 INFO L270 CegarLoopResult]: At program point L188(line 188) the Hoare annotation is: (and (not (<= 180 |old(~a23~0)|)) (not (<= |old(~a29~0)| 274)) (= |old(~a4~0)| 1) (not (= 12 |old(~a25~0)|)) (not (= 10 |old(~a25~0)|)) (not (= 11 |old(~a25~0)|)) (not (= 9 |old(~a25~0)|))) [2020-10-26 22:43:55,830 INFO L274 CegarLoopResult]: For program point L188-1(line 188) no Hoare annotation was computed. [2020-10-26 22:43:55,830 INFO L274 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-10-26 22:43:55,830 INFO L274 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-10-26 22:43:55,830 INFO L274 CegarLoopResult]: For program point L256(lines 256 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,830 INFO L274 CegarLoopResult]: For program point L190-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,830 INFO L274 CegarLoopResult]: For program point L124-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,830 INFO L274 CegarLoopResult]: For program point L58-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,830 INFO L274 CegarLoopResult]: For program point L983(lines 983 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,831 INFO L274 CegarLoopResult]: For program point L917(lines 917 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,831 INFO L274 CegarLoopResult]: For program point L719(lines 719 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,831 INFO L274 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-10-26 22:43:55,831 INFO L274 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-10-26 22:43:55,831 INFO L274 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-10-26 22:43:55,831 INFO L274 CegarLoopResult]: For program point L918(lines 918 928) no Hoare annotation was computed. [2020-10-26 22:43:55,831 INFO L274 CegarLoopResult]: For program point L918-2(lines 918 928) no Hoare annotation was computed. [2020-10-26 22:43:55,831 INFO L274 CegarLoopResult]: For program point L720(lines 720 732) no Hoare annotation was computed. [2020-10-26 22:43:55,831 INFO L274 CegarLoopResult]: For program point L720-2(lines 720 732) no Hoare annotation was computed. [2020-10-26 22:43:55,831 INFO L274 CegarLoopResult]: For program point L588(lines 588 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,831 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 24 1028) the Hoare annotation is: (let ((.cse6 (= ~a4~0 |old(~a4~0)|)) (.cse7 (= ~a25~0 |old(~a25~0)|)) (.cse4 (= ~a23~0 |old(~a23~0)|)) (.cse5 (= ~a29~0 |old(~a29~0)|)) (.cse3 (= |old(~a4~0)| 1))) (let ((.cse0 (not .cse3)) (.cse1 (and .cse7 .cse4 .cse5 (= ~a4~0 1))) (.cse2 (and .cse7 .cse4 .cse5 .cse6))) (and (or .cse0 .cse1 (not (= 9 |old(~a25~0)|))) (or (not (<= 180 |old(~a23~0)|)) .cse2) (or (not (<= |old(~a29~0)| 274)) .cse2) (or .cse3 .cse2) (or .cse0 .cse1 (not (= 10 |old(~a25~0)|))) (or (and .cse4 .cse5 (= ~a25~0 12) .cse6) (not (= 12 |old(~a25~0)|))) (or .cse2 (not (= 11 |old(~a25~0)|)))))) [2020-10-26 22:43:55,831 INFO L274 CegarLoopResult]: For program point L324(lines 324 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,831 INFO L274 CegarLoopResult]: For program point L589(lines 589 599) no Hoare annotation was computed. [2020-10-26 22:43:55,831 INFO L274 CegarLoopResult]: For program point L589-2(lines 589 599) no Hoare annotation was computed. [2020-10-26 22:43:55,832 INFO L274 CegarLoopResult]: For program point L193-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,832 INFO L274 CegarLoopResult]: For program point L127-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,832 INFO L274 CegarLoopResult]: For program point L61-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,832 INFO L274 CegarLoopResult]: For program point L854(lines 854 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,832 INFO L274 CegarLoopResult]: For program point L458(lines 458 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,832 INFO L274 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-10-26 22:43:55,832 INFO L274 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-10-26 22:43:55,832 INFO L274 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-10-26 22:43:55,832 INFO L274 CegarLoopResult]: For program point L789(lines 789 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,832 INFO L274 CegarLoopResult]: For program point L393(lines 393 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,832 INFO L274 CegarLoopResult]: For program point L262(lines 262 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,832 INFO L274 CegarLoopResult]: For program point L196-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,832 INFO L274 CegarLoopResult]: For program point L130-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,832 INFO L274 CegarLoopResult]: For program point L64-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,833 INFO L274 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-10-26 22:43:55,833 INFO L274 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-10-26 22:43:55,833 INFO L274 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-10-26 22:43:55,833 INFO L274 CegarLoopResult]: For program point L990(lines 990 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,833 INFO L274 CegarLoopResult]: For program point L660(lines 660 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,833 INFO L274 CegarLoopResult]: For program point L528(lines 528 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,833 INFO L274 CegarLoopResult]: For program point L331(lines 331 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,833 INFO L274 CegarLoopResult]: For program point L199-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,833 INFO L274 CegarLoopResult]: For program point L133-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,833 INFO L274 CegarLoopResult]: For program point L67-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,833 INFO L274 CegarLoopResult]: For program point L794(lines 794 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,833 INFO L274 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-10-26 22:43:55,833 INFO L274 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-10-26 22:43:55,833 INFO L274 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-10-26 22:43:55,833 INFO L274 CegarLoopResult]: For program point L861(lines 861 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,833 INFO L274 CegarLoopResult]: For program point L465(lines 465 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,834 INFO L274 CegarLoopResult]: For program point L267(lines 267 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,834 INFO L274 CegarLoopResult]: For program point L400(lines 400 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,834 INFO L274 CegarLoopResult]: For program point L202-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,834 INFO L274 CegarLoopResult]: For program point L136-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,834 INFO L274 CegarLoopResult]: For program point L70-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,834 INFO L274 CegarLoopResult]: For program point L995(lines 995 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,834 INFO L274 CegarLoopResult]: For program point L929(lines 929 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,834 INFO L274 CegarLoopResult]: For program point L665(lines 665 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,834 INFO L274 CegarLoopResult]: For program point L533(lines 533 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,834 INFO L274 CegarLoopResult]: For program point L401(lines 401 412) no Hoare annotation was computed. [2020-10-26 22:43:55,834 INFO L274 CegarLoopResult]: For program point L401-2(lines 401 412) no Hoare annotation was computed. [2020-10-26 22:43:55,834 INFO L274 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-10-26 22:43:55,834 INFO L274 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-10-26 22:43:55,834 INFO L274 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-10-26 22:43:55,834 INFO L274 CegarLoopResult]: For program point L600(lines 600 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,834 INFO L274 CegarLoopResult]: For program point L336(lines 336 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,835 INFO L274 CegarLoopResult]: For program point L270(lines 270 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,835 INFO L274 CegarLoopResult]: For program point L733(lines 733 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,835 INFO L274 CegarLoopResult]: For program point L205-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,835 INFO L274 CegarLoopResult]: For program point L139-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,835 INFO L274 CegarLoopResult]: For program point L73-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,835 INFO L274 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-10-26 22:43:55,835 INFO L274 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-10-26 22:43:55,835 INFO L274 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-10-26 22:43:55,835 INFO L274 CegarLoopResult]: For program point L867(lines 867 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,835 INFO L274 CegarLoopResult]: For program point L801(lines 801 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,835 INFO L274 CegarLoopResult]: For program point L934(lines 934 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,835 INFO L274 CegarLoopResult]: For program point L868(lines 868 877) no Hoare annotation was computed. [2020-10-26 22:43:55,835 INFO L274 CegarLoopResult]: For program point L868-2(lines 868 877) no Hoare annotation was computed. [2020-10-26 22:43:55,835 INFO L274 CegarLoopResult]: For program point L472(lines 472 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,835 INFO L274 CegarLoopResult]: For program point L142-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,835 INFO L274 CegarLoopResult]: For program point L76-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,836 INFO L274 CegarLoopResult]: For program point L605(lines 605 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,836 INFO L274 CegarLoopResult]: For program point L539(lines 539 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,836 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-10-26 22:43:55,836 INFO L274 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-10-26 22:43:55,836 INFO L274 CegarLoopResult]: For program point L1002(lines 1002 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,836 INFO L274 CegarLoopResult]: For program point L672(lines 672 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,836 INFO L274 CegarLoopResult]: For program point L606(lines 606 616) no Hoare annotation was computed. [2020-10-26 22:43:55,836 INFO L274 CegarLoopResult]: For program point L606-2(lines 606 616) no Hoare annotation was computed. [2020-10-26 22:43:55,836 INFO L274 CegarLoopResult]: For program point L342(lines 342 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,836 INFO L274 CegarLoopResult]: For program point L277(lines 277 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,836 INFO L274 CegarLoopResult]: For program point L145-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,836 INFO L274 CegarLoopResult]: For program point L79-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,836 INFO L274 CegarLoopResult]: For program point L806(lines 806 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,836 INFO L274 CegarLoopResult]: For program point L740(lines 740 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,836 INFO L274 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-10-26 22:43:55,837 INFO L274 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-10-26 22:43:55,837 INFO L274 CegarLoopResult]: For program point L807(lines 807 817) no Hoare annotation was computed. [2020-10-26 22:43:55,837 INFO L274 CegarLoopResult]: For program point L807-2(lines 807 817) no Hoare annotation was computed. [2020-10-26 22:43:55,837 INFO L274 CegarLoopResult]: For program point L544(lines 544 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,837 INFO L274 CegarLoopResult]: For program point L148-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,837 INFO L274 CegarLoopResult]: For program point L82-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,837 INFO L274 CegarLoopResult]: For program point L1007(lines 1007 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,837 INFO L274 CegarLoopResult]: For program point L941(lines 941 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,837 INFO L274 CegarLoopResult]: For program point L677(lines 677 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,837 INFO L274 CegarLoopResult]: For program point L479(lines 479 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,837 INFO L274 CegarLoopResult]: For program point L413(lines 413 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,838 INFO L274 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-10-26 22:43:55,838 INFO L274 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-10-26 22:43:55,838 INFO L274 CegarLoopResult]: For program point L942(lines 942 954) no Hoare annotation was computed. [2020-10-26 22:43:55,838 INFO L274 CegarLoopResult]: For program point L942-2(lines 942 954) no Hoare annotation was computed. [2020-10-26 22:43:55,838 INFO L274 CegarLoopResult]: For program point L480(lines 480 488) no Hoare annotation was computed. [2020-10-26 22:43:55,838 INFO L274 CegarLoopResult]: For program point L480-2(lines 480 488) no Hoare annotation was computed. [2020-10-26 22:43:55,838 INFO L274 CegarLoopResult]: For program point L348(lines 348 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,838 INFO L274 CegarLoopResult]: For program point L282(lines 282 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,838 INFO L274 CegarLoopResult]: For program point L216(lines 216 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,838 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,838 INFO L274 CegarLoopResult]: For program point L745(lines 745 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,838 INFO L274 CegarLoopResult]: For program point L151-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,839 INFO L274 CegarLoopResult]: For program point L85-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,839 INFO L274 CegarLoopResult]: For program point L878(lines 878 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,839 INFO L274 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-10-26 22:43:55,839 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-10-26 22:43:55,839 INFO L274 CegarLoopResult]: For program point L154-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,839 INFO L274 CegarLoopResult]: For program point L88-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,839 INFO L274 CegarLoopResult]: For program point L683(lines 683 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,839 INFO L274 CegarLoopResult]: For program point L617(lines 617 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,839 INFO L274 CegarLoopResult]: For program point L551(lines 551 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,839 INFO L274 CegarLoopResult]: For program point L419(lines 419 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,839 INFO L274 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-10-26 22:43:55,839 INFO L274 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-10-26 22:43:55,840 INFO L274 CegarLoopResult]: For program point L1014(lines 1014 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,840 INFO L274 CegarLoopResult]: For program point L883(lines 883 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,840 INFO L274 CegarLoopResult]: For program point L355(lines 355 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,840 INFO L274 CegarLoopResult]: For program point L289(lines 289 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,840 INFO L274 CegarLoopResult]: For program point L223(lines 223 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,840 INFO L274 CegarLoopResult]: For program point L157-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,840 INFO L274 CegarLoopResult]: For program point L91-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,840 INFO L274 CegarLoopResult]: For program point L25(lines 25 27) no Hoare annotation was computed. [2020-10-26 22:43:55,840 INFO L274 CegarLoopResult]: For program point L25-2(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,840 INFO L274 CegarLoopResult]: For program point L818(lines 818 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,840 INFO L274 CegarLoopResult]: For program point L752(lines 752 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,841 INFO L274 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-10-26 22:43:55,841 INFO L274 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-10-26 22:43:55,841 INFO L274 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-10-26 22:43:55,841 INFO L274 CegarLoopResult]: For program point L489(lines 489 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,841 INFO L274 CegarLoopResult]: For program point L490(lines 490 501) no Hoare annotation was computed. [2020-10-26 22:43:55,841 INFO L274 CegarLoopResult]: For program point L424(lines 424 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,841 INFO L274 CegarLoopResult]: For program point L490-2(lines 490 501) no Hoare annotation was computed. [2020-10-26 22:43:55,841 INFO L274 CegarLoopResult]: For program point L160-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,841 INFO L274 CegarLoopResult]: For program point L94-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,841 INFO L274 CegarLoopResult]: For program point L28-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,842 INFO L274 CegarLoopResult]: For program point L1019(lines 1019 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,842 INFO L274 CegarLoopResult]: For program point L623(lines 623 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,842 INFO L274 CegarLoopResult]: For program point L557(lines 557 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,842 INFO L274 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-10-26 22:43:55,842 INFO L274 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-10-26 22:43:55,842 INFO L274 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-10-26 22:43:55,842 INFO L274 CegarLoopResult]: For program point L888(lines 888 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,842 INFO L274 CegarLoopResult]: For program point L690(lines 690 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,842 INFO L274 CegarLoopResult]: For program point L360(lines 360 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,842 INFO L274 CegarLoopResult]: For program point L955(lines 955 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,843 INFO L274 CegarLoopResult]: For program point L229(lines 229 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,843 INFO L274 CegarLoopResult]: For program point L163-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,843 INFO L274 CegarLoopResult]: For program point L97-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,843 INFO L274 CegarLoopResult]: For program point L31-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,843 INFO L274 CegarLoopResult]: For program point L824(lines 824 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,843 INFO L274 CegarLoopResult]: For program point L296(lines 296 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,843 INFO L274 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-10-26 22:43:55,843 INFO L274 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-10-26 22:43:55,843 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-10-26 22:43:55,843 INFO L274 CegarLoopResult]: For program point L759(lines 759 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,844 INFO L274 CegarLoopResult]: For program point L760(lines 760 770) no Hoare annotation was computed. [2020-10-26 22:43:55,844 INFO L274 CegarLoopResult]: For program point L760-2(lines 760 770) no Hoare annotation was computed. [2020-10-26 22:43:55,844 INFO L274 CegarLoopResult]: For program point L166-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,844 INFO L274 CegarLoopResult]: For program point L100-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,844 INFO L274 CegarLoopResult]: For program point L34-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:43:55,844 INFO L274 CegarLoopResult]: For program point L827(lines 827 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,844 INFO L274 CegarLoopResult]: For program point L563(lines 563 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,844 INFO L274 CegarLoopResult]: For program point L431(lines 431 1026) no Hoare annotation was computed. [2020-10-26 22:43:55,844 INFO L274 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-10-26 22:43:55,844 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-10-26 22:43:55,844 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-10-26 22:43:55,845 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:43:55,845 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a25~0 10) (<= ~a29~0 130) (= ~a4~0 1) (= ~a23~0 312)) [2020-10-26 22:43:55,845 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 22:43:55,845 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:43:55,845 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 1030 1046) the Hoare annotation is: (or (not (= |old(~a4~0)| 1)) (not (= 312 |old(~a23~0)|)) (and (= ~a25~0 |old(~a25~0)|) (= ~a29~0 |old(~a29~0)|) (= ~a4~0 1) (= ~a23~0 312)) (not (= 10 |old(~a25~0)|)) (not (<= |old(~a29~0)| 130))) [2020-10-26 22:43:55,845 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 1030 1046) no Hoare annotation was computed. [2020-10-26 22:43:55,845 INFO L270 CegarLoopResult]: At program point L1044(line 1044) the Hoare annotation is: (or (not (= |old(~a4~0)| 1)) (= ~a25~0 9) (= ~a25~0 11) (not (= 312 |old(~a23~0)|)) (= ~a25~0 10) (<= 180 ~a23~0) (not (= 10 |old(~a25~0)|)) (<= ~a29~0 274) (= ~a25~0 12) (not (= ~a4~0 1)) (not (<= |old(~a29~0)| 130))) [2020-10-26 22:43:55,845 INFO L274 CegarLoopResult]: For program point L1044-1(line 1044) no Hoare annotation was computed. [2020-10-26 22:43:55,845 INFO L274 CegarLoopResult]: For program point L1041(line 1041) no Hoare annotation was computed. [2020-10-26 22:43:55,846 INFO L270 CegarLoopResult]: At program point L1036-2(lines 1036 1045) the Hoare annotation is: (or (not (= |old(~a4~0)| 1)) (= ~a25~0 9) (= ~a25~0 11) (not (= 312 |old(~a23~0)|)) (= ~a25~0 10) (<= 180 ~a23~0) (not (= 10 |old(~a25~0)|)) (<= ~a29~0 274) (= ~a25~0 12) (not (= ~a4~0 1)) (not (<= |old(~a29~0)| 130))) [2020-10-26 22:43:55,846 INFO L274 CegarLoopResult]: For program point L1036-3(lines 1030 1046) no Hoare annotation was computed. [2020-10-26 22:43:55,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:43:55 BoogieIcfgContainer [2020-10-26 22:43:55,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 22:43:55,872 INFO L168 Benchmark]: Toolchain (without parser) took 126538.10 ms. Allocated memory was 160.4 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 131.9 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 962.3 MB. Max. memory is 8.0 GB. [2020-10-26 22:43:55,876 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 160.4 MB. Free memory is still 132.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 22:43:55,877 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1035.75 ms. Allocated memory is still 160.4 MB. Free memory was 131.3 MB in the beginning and 121.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 31.8 MB. Max. memory is 8.0 GB. [2020-10-26 22:43:55,877 INFO L168 Benchmark]: Boogie Preprocessor took 171.14 ms. Allocated memory is still 160.4 MB. Free memory was 121.9 MB in the beginning and 114.5 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2020-10-26 22:43:55,879 INFO L168 Benchmark]: RCFGBuilder took 2187.87 ms. Allocated memory was 160.4 MB in the beginning and 195.0 MB in the end (delta: 34.6 MB). Free memory was 114.5 MB in the beginning and 151.8 MB in the end (delta: -37.3 MB). Peak memory consumption was 85.4 MB. Max. memory is 8.0 GB. [2020-10-26 22:43:55,880 INFO L168 Benchmark]: TraceAbstraction took 123126.87 ms. Allocated memory was 195.0 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 151.3 MB in the beginning and 1.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 945.8 MB. Max. memory is 8.0 GB. [2020-10-26 22:43:55,888 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 160.4 MB. Free memory is still 132.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1035.75 ms. Allocated memory is still 160.4 MB. Free memory was 131.3 MB in the beginning and 121.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 31.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 171.14 ms. Allocated memory is still 160.4 MB. Free memory was 121.9 MB in the beginning and 114.5 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2187.87 ms. Allocated memory was 160.4 MB in the beginning and 195.0 MB in the end (delta: 34.6 MB). Free memory was 114.5 MB in the beginning and 151.8 MB in the end (delta: -37.3 MB). Peak memory consumption was 85.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 123126.87 ms. Allocated memory was 195.0 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 151.3 MB in the beginning and 1.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 945.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1036]: Loop Invariant Derived loop invariant: (((((((((!(\old(a4) == 1) || a25 == 9) || a25 == 11) || !(312 == \old(a23))) || a25 == 10) || 180 <= a23) || !(10 == \old(a25))) || a29 <= 274) || a25 == 12) || !(a4 == 1)) || !(\old(a29) <= 130) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 296 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 113.9s, OverallIterations: 17, TraceHistogramMax: 4, AutomataDifference: 59.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 810 SDtfs, 9965 SDslu, 1369 SDs, 0 SdLazy, 23262 SolverSat, 3417 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 40.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 282 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12268occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 17 MinimizatonAttempts, 3088 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 989 PreInvPairs, 1223 NumberOfFragments, 352 HoareAnnotationTreeSize, 989 FomulaSimplifications, 28465 FormulaSimplificationTreeSizeReduction, 3.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 24057 FormulaSimplificationTreeSizeReductionInter, 5.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 48.1s InterpolantComputationTime, 4853 NumberOfCodeBlocks, 4853 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 4836 ConstructedInterpolants, 0 QuantifiedInterpolants, 5301468 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 3 PerfectInterpolantSequences, 3753/4023 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...