/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/Problem02_label04.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:37:08,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:37:08,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:37:08,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:37:08,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:37:08,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:37:08,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:37:08,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:37:08,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:37:08,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:37:08,627 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:37:08,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:37:08,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:37:08,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:37:08,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:37:08,637 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:37:08,638 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:37:08,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:37:08,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:37:08,659 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:37:08,661 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:37:08,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:37:08,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:37:08,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:37:08,675 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:37:08,675 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:37:08,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:37:08,678 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:37:08,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:37:08,679 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:37:08,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:37:08,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:37:08,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:37:08,683 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:37:08,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:37:08,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:37:08,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:37:08,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:37:08,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:37:08,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:37:08,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:37:08,696 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 20:37:08,748 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:37:08,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:37:08,753 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:37:08,753 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:37:08,753 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:37:08,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:37:08,754 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:37:08,754 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:37:08,754 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:37:08,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:37:08,756 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:37:08,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:37:08,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:37:08,756 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:37:08,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:37:08,757 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:37:08,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:37:08,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:37:08,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:37:08,757 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:37:08,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:37:08,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:37:08,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:37:08,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:37:08,758 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:37:08,759 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:37:08,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:37:08,759 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:37:08,759 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:37:08,759 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:37:09,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:37:09,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:37:09,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:37:09,239 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:37:09,240 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:37:09,241 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label04.c [2020-10-26 20:37:09,337 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aacd447de/6b7391cb60ab4755bd1fce52464837cd/FLAG4ac2d5513 [2020-10-26 20:37:10,135 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:37:10,139 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label04.c [2020-10-26 20:37:10,152 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aacd447de/6b7391cb60ab4755bd1fce52464837cd/FLAG4ac2d5513 [2020-10-26 20:37:10,382 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aacd447de/6b7391cb60ab4755bd1fce52464837cd [2020-10-26 20:37:10,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:37:10,392 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:37:10,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:37:10,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:37:10,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:37:10,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:37:10" (1/1) ... [2020-10-26 20:37:10,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7653d3e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:37:10, skipping insertion in model container [2020-10-26 20:37:10,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:37:10" (1/1) ... [2020-10-26 20:37:10,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:37:10,455 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:37:10,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:37:10,909 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:37:11,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:37:11,112 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:37:11,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:37:11 WrapperNode [2020-10-26 20:37:11,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:37:11,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:37:11,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:37:11,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:37:11,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:37:11" (1/1) ... [2020-10-26 20:37:11,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:37:11" (1/1) ... [2020-10-26 20:37:11,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:37:11" (1/1) ... [2020-10-26 20:37:11,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:37:11" (1/1) ... [2020-10-26 20:37:11,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:37:11" (1/1) ... [2020-10-26 20:37:11,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:37:11" (1/1) ... [2020-10-26 20:37:11,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:37:11" (1/1) ... [2020-10-26 20:37:11,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:37:11,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:37:11,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:37:11,303 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:37:11,304 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:37:11" (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 20:37:11,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:37:11,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:37:11,394 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:37:11,394 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:37:11,394 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:37:11,395 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:37:11,395 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:37:11,396 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:37:11,396 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:37:11,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:37:11,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:37:11,398 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:37:11,398 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:37:11,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:37:11,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:37:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:37:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:37:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:37:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:37:12,952 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:37:12,952 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:37:12,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:37:12 BoogieIcfgContainer [2020-10-26 20:37:12,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:37:12,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:37:12,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:37:12,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:37:12,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:37:10" (1/3) ... [2020-10-26 20:37:12,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9670c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:37:12, skipping insertion in model container [2020-10-26 20:37:12,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:37:11" (2/3) ... [2020-10-26 20:37:12,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9670c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:37:12, skipping insertion in model container [2020-10-26 20:37:12,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:37:12" (3/3) ... [2020-10-26 20:37:12,966 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label04.c [2020-10-26 20:37:12,980 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:37:12,987 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:37:13,004 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:37:13,041 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:37:13,041 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:37:13,041 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:37:13,041 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:37:13,042 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:37:13,042 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:37:13,042 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:37:13,042 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:37:13,071 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-26 20:37:13,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-26 20:37:13,087 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:13,088 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:13,088 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:13,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:13,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1457047349, now seen corresponding path program 1 times [2020-10-26 20:37:13,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:13,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [11828264] [2020-10-26 20:37:13,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:13,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:13,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:15,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:15,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-26 20:37:15,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:15,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2012 [2020-10-26 20:37:15,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:15,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-26 20:37:15,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:15,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-26 20:37:15,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:37:16,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:16,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:16,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:16,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:16,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:16,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-26 20:37:16,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:16,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:16,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:16,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:16,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:16,290 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 20:37:16,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [11828264] [2020-10-26 20:37:16,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:37:16,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-26 20:37:16,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392423612] [2020-10-26 20:37:16,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-26 20:37:16,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:16,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-26 20:37:16,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:37:16,319 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 11 states. [2020-10-26 20:37:16,534 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:37:16,719 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-26 20:37:16,891 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-26 20:37:17,073 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-26 20:37:17,444 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 109 [2020-10-26 20:37:17,811 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 108 [2020-10-26 20:37:18,584 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 107 [2020-10-26 20:37:19,212 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 105 [2020-10-26 20:37:20,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:20,501 INFO L93 Difference]: Finished difference Result 541 states and 898 transitions. [2020-10-26 20:37:20,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 20:37:20,503 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 113 [2020-10-26 20:37:20,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:20,518 INFO L225 Difference]: With dead ends: 541 [2020-10-26 20:37:20,519 INFO L226 Difference]: Without dead ends: 237 [2020-10-26 20:37:20,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2020-10-26 20:37:20,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-10-26 20:37:20,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 234. [2020-10-26 20:37:20,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-26 20:37:20,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 324 transitions. [2020-10-26 20:37:20,614 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 324 transitions. Word has length 113 [2020-10-26 20:37:20,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:20,615 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 324 transitions. [2020-10-26 20:37:20,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-26 20:37:20,616 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 324 transitions. [2020-10-26 20:37:20,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-26 20:37:20,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:20,620 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:20,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:37:20,621 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:20,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:20,622 INFO L82 PathProgramCache]: Analyzing trace with hash 810763510, now seen corresponding path program 1 times [2020-10-26 20:37:20,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:20,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798887021] [2020-10-26 20:37:20,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:20,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:20,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:21,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:22,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:22,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-26 20:37:22,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:37:22,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1744 [2020-10-26 20:37:22,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:22,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:37:22,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:22,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-26 20:37:22,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:22,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:22,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:22,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:22,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:22,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:22,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:37:22,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:22,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:22,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:22,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:22,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:22,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:22,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:22,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:22,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:22,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:37:22,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:22,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:37:22,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:22,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:22,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:22,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:37:22,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:22,720 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:37:22,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798887021] [2020-10-26 20:37:22,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:22,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:37:22,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265779812] [2020-10-26 20:37:22,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:37:22,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:22,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:37:22,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:37:22,725 INFO L87 Difference]: Start difference. First operand 234 states and 324 transitions. Second operand 6 states. [2020-10-26 20:37:24,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:24,472 INFO L93 Difference]: Finished difference Result 614 states and 877 transitions. [2020-10-26 20:37:24,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:37:24,473 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 122 [2020-10-26 20:37:24,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:24,480 INFO L225 Difference]: With dead ends: 614 [2020-10-26 20:37:24,480 INFO L226 Difference]: Without dead ends: 386 [2020-10-26 20:37:24,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:24,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-10-26 20:37:24,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 381. [2020-10-26 20:37:24,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-10-26 20:37:24,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 533 transitions. [2020-10-26 20:37:24,550 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 533 transitions. Word has length 122 [2020-10-26 20:37:24,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:24,551 INFO L481 AbstractCegarLoop]: Abstraction has 381 states and 533 transitions. [2020-10-26 20:37:24,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:37:24,551 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 533 transitions. [2020-10-26 20:37:24,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-26 20:37:24,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:24,558 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2020-10-26 20:37:24,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:37:24,559 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:24,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:24,560 INFO L82 PathProgramCache]: Analyzing trace with hash 812485573, now seen corresponding path program 1 times [2020-10-26 20:37:24,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:24,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [327114218] [2020-10-26 20:37:24,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:24,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:24,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:24,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:25,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:26,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:26,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-26 20:37:26,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:37:26,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2010 [2020-10-26 20:37:26,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:26,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:37:26,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:26,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-26 20:37:26,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:26,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:26,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:26,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:26,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:26,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:26,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:37:26,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:26,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:26,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:26,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:26,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:26,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:26,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:26,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:26,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:26,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:37:26,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:26,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:37:26,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:26,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:26,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:26,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:37:26,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:26,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:37:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:26,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:26,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:26,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-26 20:37:26,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:26,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-26 20:37:26,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:26,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:26,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:26,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-26 20:37:26,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-26 20:37:26,981 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-26 20:37:26,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [327114218] [2020-10-26 20:37:26,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:26,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:37:26,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802162429] [2020-10-26 20:37:26,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:26,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:26,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:26,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:26,987 INFO L87 Difference]: Start difference. First operand 381 states and 533 transitions. Second operand 7 states. [2020-10-26 20:37:29,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:29,049 INFO L93 Difference]: Finished difference Result 1082 states and 1557 transitions. [2020-10-26 20:37:29,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:37:29,051 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2020-10-26 20:37:29,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:29,058 INFO L225 Difference]: With dead ends: 1082 [2020-10-26 20:37:29,058 INFO L226 Difference]: Without dead ends: 707 [2020-10-26 20:37:29,060 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:37:29,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2020-10-26 20:37:29,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 537. [2020-10-26 20:37:29,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-26 20:37:29,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 739 transitions. [2020-10-26 20:37:29,127 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 739 transitions. Word has length 144 [2020-10-26 20:37:29,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:29,128 INFO L481 AbstractCegarLoop]: Abstraction has 537 states and 739 transitions. [2020-10-26 20:37:29,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:29,128 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 739 transitions. [2020-10-26 20:37:29,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-26 20:37:29,138 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:29,139 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:37:29,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:37:29,139 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:29,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:29,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1466678643, now seen corresponding path program 1 times [2020-10-26 20:37:29,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:29,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2105920246] [2020-10-26 20:37:29,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:29,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:29,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:29,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:30,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:31,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:31,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-26 20:37:31,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:37:31,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2322 [2020-10-26 20:37:31,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:31,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:37:31,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:31,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-26 20:37:31,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:31,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:31,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:31,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:31,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:31,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:31,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:37:31,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:31,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:31,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:31,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:31,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:31,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:31,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:31,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:31,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:31,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:31,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:37:31,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:31,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:37:31,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:31,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:31,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:31,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:37:31,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:31,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:37:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:31,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:31,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:31,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-26 20:37:31,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:31,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-26 20:37:31,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:31,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:31,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:31,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-26 20:37:31,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:31,870 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-26 20:37:31,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2105920246] [2020-10-26 20:37:31,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:31,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:37:31,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622095804] [2020-10-26 20:37:31,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:31,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:31,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:31,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:31,873 INFO L87 Difference]: Start difference. First operand 537 states and 739 transitions. Second operand 7 states. [2020-10-26 20:37:34,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:34,041 INFO L93 Difference]: Finished difference Result 1542 states and 2186 transitions. [2020-10-26 20:37:34,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:37:34,042 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 148 [2020-10-26 20:37:34,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:34,049 INFO L225 Difference]: With dead ends: 1542 [2020-10-26 20:37:34,049 INFO L226 Difference]: Without dead ends: 1011 [2020-10-26 20:37:34,051 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:37:34,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2020-10-26 20:37:34,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 996. [2020-10-26 20:37:34,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 996 states. [2020-10-26 20:37:34,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 1346 transitions. [2020-10-26 20:37:34,101 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 1346 transitions. Word has length 148 [2020-10-26 20:37:34,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:34,102 INFO L481 AbstractCegarLoop]: Abstraction has 996 states and 1346 transitions. [2020-10-26 20:37:34,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:34,102 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 1346 transitions. [2020-10-26 20:37:34,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-26 20:37:34,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:34,108 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:37:34,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:37:34,109 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:34,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:34,110 INFO L82 PathProgramCache]: Analyzing trace with hash 914758541, now seen corresponding path program 1 times [2020-10-26 20:37:34,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:34,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [253934987] [2020-10-26 20:37:34,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:34,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:34,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:34,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:34,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-26 20:37:34,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:34,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 412 [2020-10-26 20:37:34,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:34,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:34,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-26 20:37:34,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-26 20:37:34,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:34,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:34,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:34,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:34,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:34,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:34,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:34,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:37:34,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:34,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:34,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:34,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:34,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 20:37:34,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:34,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:34,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:34,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:37:34,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:34,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:37:34,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:34,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:34,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:34,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:34,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:34,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:37:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:34,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:34,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:34,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-26 20:37:34,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:34,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:37:34,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:34,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:34,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:34,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-26 20:37:34,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:34,864 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:37:34,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [253934987] [2020-10-26 20:37:34,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:34,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:37:34,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836105055] [2020-10-26 20:37:34,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:37:34,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:34,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:37:34,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:37:34,868 INFO L87 Difference]: Start difference. First operand 996 states and 1346 transitions. Second operand 5 states. [2020-10-26 20:37:36,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:36,540 INFO L93 Difference]: Finished difference Result 2737 states and 3785 transitions. [2020-10-26 20:37:36,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:37:36,541 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-10-26 20:37:36,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:36,551 INFO L225 Difference]: With dead ends: 2737 [2020-10-26 20:37:36,551 INFO L226 Difference]: Without dead ends: 1296 [2020-10-26 20:37:36,556 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 20:37:36,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2020-10-26 20:37:36,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1142. [2020-10-26 20:37:36,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1142 states. [2020-10-26 20:37:36,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1423 transitions. [2020-10-26 20:37:36,619 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1423 transitions. Word has length 148 [2020-10-26 20:37:36,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:36,620 INFO L481 AbstractCegarLoop]: Abstraction has 1142 states and 1423 transitions. [2020-10-26 20:37:36,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:37:36,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1423 transitions. [2020-10-26 20:37:36,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-26 20:37:36,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:36,626 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:37:36,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:37:36,627 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:36,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:36,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1146481416, now seen corresponding path program 1 times [2020-10-26 20:37:36,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:36,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1183387589] [2020-10-26 20:37:36,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:36,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:36,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:37,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:37,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:37,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-26 20:37:37,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:37:37,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 964 [2020-10-26 20:37:37,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:37,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:37,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:37:37,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-26 20:37:37,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:37,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:37,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:37,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:37,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:37,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:37,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:37:37,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:37,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:37,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:37,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:37,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:37,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:37,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:37,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:37,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:37:37,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:37,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:37:37,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:37,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:37,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:37,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-26 20:37:37,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:37,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:37:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:37,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:37,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:37,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-26 20:37:37,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:37,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-26 20:37:37,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:37,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:37,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:37,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:37:37,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:38,021 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 52 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 20:37:38,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1183387589] [2020-10-26 20:37:38,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:38,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:38,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746903384] [2020-10-26 20:37:38,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:38,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:38,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:38,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:38,024 INFO L87 Difference]: Start difference. First operand 1142 states and 1423 transitions. Second operand 7 states. [2020-10-26 20:37:38,769 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:37:39,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:39,705 INFO L93 Difference]: Finished difference Result 3040 states and 3863 transitions. [2020-10-26 20:37:39,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:37:39,706 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 161 [2020-10-26 20:37:39,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:39,717 INFO L225 Difference]: With dead ends: 3040 [2020-10-26 20:37:39,717 INFO L226 Difference]: Without dead ends: 1904 [2020-10-26 20:37:39,721 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-26 20:37:39,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1904 states. [2020-10-26 20:37:39,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1904 to 1884. [2020-10-26 20:37:39,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1884 states. [2020-10-26 20:37:39,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1884 states to 1884 states and 2315 transitions. [2020-10-26 20:37:39,788 INFO L78 Accepts]: Start accepts. Automaton has 1884 states and 2315 transitions. Word has length 161 [2020-10-26 20:37:39,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:39,788 INFO L481 AbstractCegarLoop]: Abstraction has 1884 states and 2315 transitions. [2020-10-26 20:37:39,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:39,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1884 states and 2315 transitions. [2020-10-26 20:37:39,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-10-26 20:37:39,795 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:39,796 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:37:39,796 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:37:39,796 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:39,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:39,797 INFO L82 PathProgramCache]: Analyzing trace with hash 719920685, now seen corresponding path program 1 times [2020-10-26 20:37:39,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:39,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [774339379] [2020-10-26 20:37:39,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:39,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:39,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:39,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:40,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:41,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:41,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-10-26 20:37:41,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:37:41,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1301 [2020-10-26 20:37:41,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:41,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:41,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:37:41,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-26 20:37:41,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:41,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:41,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:41,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:41,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:41,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:41,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:37:41,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:41,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:41,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:41,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:41,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:41,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:41,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:41,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:41,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:37:41,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:41,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:37:41,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:41,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:41,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:41,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-26 20:37:41,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:41,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:37:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:41,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:41,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:41,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 20:37:41,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:41,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-26 20:37:41,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:41,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:41,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:41,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-26 20:37:41,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:41,610 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 89 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 20:37:41,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [774339379] [2020-10-26 20:37:41,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:41,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:41,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159559424] [2020-10-26 20:37:41,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:41,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:41,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:41,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:41,613 INFO L87 Difference]: Start difference. First operand 1884 states and 2315 transitions. Second operand 7 states. [2020-10-26 20:37:43,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:43,513 INFO L93 Difference]: Finished difference Result 4127 states and 5286 transitions. [2020-10-26 20:37:43,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:37:43,514 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2020-10-26 20:37:43,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:43,530 INFO L225 Difference]: With dead ends: 4127 [2020-10-26 20:37:43,530 INFO L226 Difference]: Without dead ends: 2249 [2020-10-26 20:37:43,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:37:43,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2249 states. [2020-10-26 20:37:43,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2249 to 2196. [2020-10-26 20:37:43,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2196 states. [2020-10-26 20:37:43,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 2685 transitions. [2020-10-26 20:37:43,625 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 2685 transitions. Word has length 198 [2020-10-26 20:37:43,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:43,625 INFO L481 AbstractCegarLoop]: Abstraction has 2196 states and 2685 transitions. [2020-10-26 20:37:43,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:43,626 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 2685 transitions. [2020-10-26 20:37:43,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-10-26 20:37:43,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:43,635 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 20:37:43,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:37:43,635 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:43,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:43,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1607985141, now seen corresponding path program 1 times [2020-10-26 20:37:43,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:43,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1373821647] [2020-10-26 20:37:43,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:43,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:43,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:44,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:44,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-10-26 20:37:44,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:44,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 634 [2020-10-26 20:37:44,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:44,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:44,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 118 [2020-10-26 20:37:44,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 20:37:44,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:44,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:44,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:44,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:44,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:44,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:44,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:37:44,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:44,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:44,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:44,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:44,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:44,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:44,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:44,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:44,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-26 20:37:44,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:44,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:37:44,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:44,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:44,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:44,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:44,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:44,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-26 20:37:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:44,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:44,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:44,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 20:37:44,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:44,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-26 20:37:44,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:44,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:44,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:44,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-26 20:37:44,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:45,147 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-26 20:37:45,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1373821647] [2020-10-26 20:37:45,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:45,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:37:45,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503548961] [2020-10-26 20:37:45,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:37:45,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:45,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:37:45,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:37:45,150 INFO L87 Difference]: Start difference. First operand 2196 states and 2685 transitions. Second operand 5 states. [2020-10-26 20:37:45,998 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-26 20:37:46,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:46,762 INFO L93 Difference]: Finished difference Result 4477 states and 5558 transitions. [2020-10-26 20:37:46,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:37:46,767 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 219 [2020-10-26 20:37:46,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:46,779 INFO L225 Difference]: With dead ends: 4477 [2020-10-26 20:37:46,780 INFO L226 Difference]: Without dead ends: 2199 [2020-10-26 20:37:46,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 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 20:37:46,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2199 states. [2020-10-26 20:37:46,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2199 to 2194. [2020-10-26 20:37:46,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2194 states. [2020-10-26 20:37:46,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2194 states to 2194 states and 2664 transitions. [2020-10-26 20:37:46,860 INFO L78 Accepts]: Start accepts. Automaton has 2194 states and 2664 transitions. Word has length 219 [2020-10-26 20:37:46,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:46,860 INFO L481 AbstractCegarLoop]: Abstraction has 2194 states and 2664 transitions. [2020-10-26 20:37:46,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:37:46,861 INFO L276 IsEmpty]: Start isEmpty. Operand 2194 states and 2664 transitions. [2020-10-26 20:37:46,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-10-26 20:37:46,869 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:46,869 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, 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] [2020-10-26 20:37:46,869 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:37:46,870 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:46,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:46,870 INFO L82 PathProgramCache]: Analyzing trace with hash -961208789, now seen corresponding path program 1 times [2020-10-26 20:37:46,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:46,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786088352] [2020-10-26 20:37:46,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:46,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:46,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:47,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:48,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:50,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:50,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:50,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-10-26 20:37:50,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:37:50,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3976 [2020-10-26 20:37:50,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:50,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:50,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-26 20:37:50,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-26 20:37:50,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:51,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:51,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:51,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:51,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:51,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:51,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:37:51,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:51,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:51,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:51,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:51,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:51,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:51,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:51,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:51,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:51,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:37:51,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:51,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-26 20:37:51,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:51,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:51,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:51,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-26 20:37:51,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:51,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-26 20:37:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:51,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:51,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:51,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-26 20:37:51,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:51,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-26 20:37:51,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:51,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:51,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:51,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-26 20:37:51,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:51,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-26 20:37:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:51,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:51,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:51,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-26 20:37:51,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:51,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:37:51,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:51,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:51,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-26 20:37:51,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:51,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:51,333 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 129 proven. 27 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 20:37:51,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786088352] [2020-10-26 20:37:51,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:51,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:51,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655853126] [2020-10-26 20:37:51,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:51,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:51,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:51,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:51,337 INFO L87 Difference]: Start difference. First operand 2194 states and 2664 transitions. Second operand 7 states. [2020-10-26 20:37:52,278 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:37:53,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:53,379 INFO L93 Difference]: Finished difference Result 4833 states and 5940 transitions. [2020-10-26 20:37:53,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:37:53,384 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 222 [2020-10-26 20:37:53,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:53,398 INFO L225 Difference]: With dead ends: 4833 [2020-10-26 20:37:53,398 INFO L226 Difference]: Without dead ends: 2645 [2020-10-26 20:37:53,404 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 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 20:37:53,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2020-10-26 20:37:53,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 2490. [2020-10-26 20:37:53,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2490 states. [2020-10-26 20:37:53,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2490 states to 2490 states and 2951 transitions. [2020-10-26 20:37:53,484 INFO L78 Accepts]: Start accepts. Automaton has 2490 states and 2951 transitions. Word has length 222 [2020-10-26 20:37:53,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:53,484 INFO L481 AbstractCegarLoop]: Abstraction has 2490 states and 2951 transitions. [2020-10-26 20:37:53,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:53,484 INFO L276 IsEmpty]: Start isEmpty. Operand 2490 states and 2951 transitions. [2020-10-26 20:37:53,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-26 20:37:53,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:53,494 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, 3, 3, 3, 3, 3, 3, 3, 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 20:37:53,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:37:53,494 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:53,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:53,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1139630394, now seen corresponding path program 1 times [2020-10-26 20:37:53,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:53,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2009701457] [2020-10-26 20:37:53,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:53,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:53,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:53,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:53,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:53,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:54,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:57,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:58,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:58,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-10-26 20:37:58,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 20:37:58,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-26 20:37:58,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:58,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:37:58,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:58,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-26 20:37:58,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:58,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:58,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:58,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:58,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:58,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:58,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:37:58,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:58,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:58,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:58,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:58,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:37:58,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:58,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:58,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:58,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-26 20:37:58,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:58,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-26 20:37:58,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:58,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:58,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:58,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-26 20:37:58,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:58,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-26 20:37:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:58,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:58,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:58,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:58,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-26 20:37:58,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:58,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-26 20:37:58,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:58,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:58,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:58,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-26 20:37:58,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:58,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-26 20:37:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:58,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:58,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:58,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-26 20:37:58,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:58,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:37:58,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:58,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:58,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-26 20:37:58,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:58,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:59,019 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 104 proven. 79 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:37:59,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2009701457] [2020-10-26 20:37:59,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:59,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:37:59,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538201881] [2020-10-26 20:37:59,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:37:59,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:59,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:37:59,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:37:59,023 INFO L87 Difference]: Start difference. First operand 2490 states and 2951 transitions. Second operand 8 states. [2020-10-26 20:38:01,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:38:01,024 INFO L93 Difference]: Finished difference Result 5931 states and 7096 transitions. [2020-10-26 20:38:01,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:38:01,024 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 223 [2020-10-26 20:38:01,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:38:01,044 INFO L225 Difference]: With dead ends: 5931 [2020-10-26 20:38:01,045 INFO L226 Difference]: Without dead ends: 3447 [2020-10-26 20:38:01,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:38:01,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3447 states. [2020-10-26 20:38:01,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3447 to 3251. [2020-10-26 20:38:01,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3251 states. [2020-10-26 20:38:01,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3251 states to 3251 states and 3807 transitions. [2020-10-26 20:38:01,162 INFO L78 Accepts]: Start accepts. Automaton has 3251 states and 3807 transitions. Word has length 223 [2020-10-26 20:38:01,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:38:01,163 INFO L481 AbstractCegarLoop]: Abstraction has 3251 states and 3807 transitions. [2020-10-26 20:38:01,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:38:01,163 INFO L276 IsEmpty]: Start isEmpty. Operand 3251 states and 3807 transitions. [2020-10-26 20:38:01,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-10-26 20:38:01,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:38:01,174 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2020-10-26 20:38:01,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:38:01,175 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:38:01,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:38:01,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1247187834, now seen corresponding path program 1 times [2020-10-26 20:38:01,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:38:01,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1493365501] [2020-10-26 20:38:01,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:38:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:01,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:01,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:01,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:01,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:01,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:02,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:03,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:04,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:04,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-10-26 20:38:04,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-26 20:38:04,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2890 [2020-10-26 20:38:04,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:04,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:04,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-26 20:38:04,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-26 20:38:04,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:04,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:38:04,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:04,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:04,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:04,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:38:04,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:04,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:38:04,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:04,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:38:04,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:04,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:38:04,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:04,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:38:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:04,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:04,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:04,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-26 20:38:04,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:04,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:38:04,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:04,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:38:04,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:04,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:38:04,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:04,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-26 20:38:04,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:04,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:04,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:04,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:38:04,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:04,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:38:04,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:04,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:38:04,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:04,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:38:04,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:04,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-26 20:38:04,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:04,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:04,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:04,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:04,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-26 20:38:04,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:38:04,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-26 20:38:04,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:04,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:04,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:04,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-26 20:38:04,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:04,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-26 20:38:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:04,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:04,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:04,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-26 20:38:04,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:04,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:38:04,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:04,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:38:04,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-26 20:38:04,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:38:04,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:04,505 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 153 proven. 29 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-26 20:38:04,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1493365501] [2020-10-26 20:38:04,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:38:04,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:38:04,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393316187] [2020-10-26 20:38:04,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:38:04,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:38:04,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:38:04,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:38:04,508 INFO L87 Difference]: Start difference. First operand 3251 states and 3807 transitions. Second operand 7 states. [2020-10-26 20:38:07,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:38:07,104 INFO L93 Difference]: Finished difference Result 7659 states and 8926 transitions. [2020-10-26 20:38:07,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:38:07,104 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 231 [2020-10-26 20:38:07,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:38:07,125 INFO L225 Difference]: With dead ends: 7659 [2020-10-26 20:38:07,125 INFO L226 Difference]: Without dead ends: 4112 [2020-10-26 20:38:07,136 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 1 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 20:38:07,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4112 states. [2020-10-26 20:38:07,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4112 to 3229. [2020-10-26 20:38:07,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3229 states. [2020-10-26 20:38:07,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3229 states to 3229 states and 3620 transitions. [2020-10-26 20:38:07,236 INFO L78 Accepts]: Start accepts. Automaton has 3229 states and 3620 transitions. Word has length 231 [2020-10-26 20:38:07,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:38:07,236 INFO L481 AbstractCegarLoop]: Abstraction has 3229 states and 3620 transitions. [2020-10-26 20:38:07,236 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:38:07,237 INFO L276 IsEmpty]: Start isEmpty. Operand 3229 states and 3620 transitions. [2020-10-26 20:38:07,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-10-26 20:38:07,246 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:38:07,247 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:38:07,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:38:07,247 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:38:07,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:38:07,248 INFO L82 PathProgramCache]: Analyzing trace with hash -2061667424, now seen corresponding path program 1 times [2020-10-26 20:38:07,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:38:07,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [417706271] [2020-10-26 20:38:07,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:38:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:07,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:07,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:07,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:08,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:08,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:08,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:09,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:10,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:10,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:10,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-26 20:38:10,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-26 20:38:10,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3710 [2020-10-26 20:38:10,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:10,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:38:10,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-26 20:38:10,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 199 [2020-10-26 20:38:10,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:11,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:38:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:11,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:11,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:11,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:38:11,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:11,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:38:11,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:11,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:38:11,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:11,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:38:11,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:11,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:38:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:11,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:11,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:11,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:38:11,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:11,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:38:11,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:11,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:38:11,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:11,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:38:11,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:11,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:38:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:11,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:11,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:11,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-26 20:38:11,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:11,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:38:11,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:11,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:38:11,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:11,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-26 20:38:11,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:11,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-26 20:38:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:11,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:11,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:11,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-26 20:38:11,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:11,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-26 20:38:11,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:11,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:11,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:11,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-26 20:38:11,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:11,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 20:38:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:11,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:11,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:11,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-26 20:38:11,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:11,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-26 20:38:11,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:11,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:11,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:11,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-26 20:38:11,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:11,410 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 90 proven. 76 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-10-26 20:38:11,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [417706271] [2020-10-26 20:38:11,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:38:11,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:38:11,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271865419] [2020-10-26 20:38:11,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:38:11,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:38:11,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:38:11,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:38:11,412 INFO L87 Difference]: Start difference. First operand 3229 states and 3620 transitions. Second operand 7 states. [2020-10-26 20:38:12,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:38:12,892 INFO L93 Difference]: Finished difference Result 6323 states and 7110 transitions. [2020-10-26 20:38:12,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:38:12,897 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 232 [2020-10-26 20:38:12,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:38:12,898 INFO L225 Difference]: With dead ends: 6323 [2020-10-26 20:38:12,898 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:38:12,910 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:38:12,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:38:12,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:38:12,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:38:12,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:38:12,911 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 232 [2020-10-26 20:38:12,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:38:12,911 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:38:12,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:38:12,911 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:38:12,911 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:38:12,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 20:38:12,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:38:14,392 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 175 [2020-10-26 20:38:15,015 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 182 [2020-10-26 20:38:15,269 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 34 [2020-10-26 20:38:16,835 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 226 DAG size of output: 98 [2020-10-26 20:38:17,570 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 59 [2020-10-26 20:38:18,135 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 59 [2020-10-26 20:38:18,541 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 62 [2020-10-26 20:38:18,547 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:38:18,547 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:38:18,547 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:38:18,547 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:38:18,548 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:38:18,549 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|)) [2020-10-26 20:38:18,550 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:38:18,550 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-26 20:38:18,550 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-26 20:38:18,550 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-26 20:38:18,550 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-26 20:38:18,550 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-26 20:38:18,550 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-26 20:38:18,550 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-26 20:38:18,550 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-26 20:38:18,550 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-26 20:38:18,550 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-26 20:38:18,551 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-26 20:38:18,551 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-26 20:38:18,551 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-26 20:38:18,551 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-26 20:38:18,551 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-26 20:38:18,551 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,551 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,551 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,551 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,551 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,551 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-26 20:38:18,552 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-26 20:38:18,552 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-26 20:38:18,552 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-26 20:38:18,552 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-26 20:38:18,554 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-26 20:38:18,554 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-26 20:38:18,554 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-26 20:38:18,554 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-26 20:38:18,554 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-26 20:38:18,554 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-26 20:38:18,554 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-26 20:38:18,555 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-26 20:38:18,555 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,555 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,555 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,557 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,557 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-26 20:38:18,557 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,557 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-26 20:38:18,557 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-26 20:38:18,557 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-26 20:38:18,557 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-26 20:38:18,557 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-26 20:38:18,558 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-26 20:38:18,558 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-26 20:38:18,558 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-26 20:38:18,558 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-26 20:38:18,558 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-26 20:38:18,558 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-26 20:38:18,558 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-26 20:38:18,558 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-26 20:38:18,558 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-26 20:38:18,558 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-26 20:38:18,560 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,560 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,560 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,560 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,560 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,560 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-26 20:38:18,561 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-26 20:38:18,561 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-26 20:38:18,562 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-26 20:38:18,562 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-26 20:38:18,562 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-26 20:38:18,562 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-26 20:38:18,562 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-26 20:38:18,562 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-26 20:38:18,562 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-26 20:38:18,562 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-26 20:38:18,562 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,562 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,562 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,563 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,563 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,563 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-26 20:38:18,563 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-26 20:38:18,563 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-26 20:38:18,563 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-26 20:38:18,563 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-26 20:38:18,563 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-26 20:38:18,563 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-26 20:38:18,563 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-26 20:38:18,563 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-26 20:38:18,564 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-26 20:38:18,564 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-26 20:38:18,564 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-26 20:38:18,564 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-26 20:38:18,564 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,564 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,564 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,564 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,564 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,564 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-26 20:38:18,564 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-26 20:38:18,564 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-26 20:38:18,565 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-26 20:38:18,565 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-26 20:38:18,565 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-26 20:38:18,566 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-26 20:38:18,566 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-26 20:38:18,566 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-26 20:38:18,566 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,566 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,566 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-26 20:38:18,566 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-26 20:38:18,566 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-26 20:38:18,566 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-26 20:38:18,566 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-26 20:38:18,567 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-26 20:38:18,567 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-26 20:38:18,567 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,567 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,567 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,567 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,567 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-26 20:38:18,567 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,567 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-26 20:38:18,567 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,567 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-26 20:38:18,568 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-26 20:38:18,568 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-26 20:38:18,568 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-26 20:38:18,568 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-26 20:38:18,568 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-26 20:38:18,568 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-26 20:38:18,568 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-26 20:38:18,568 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-26 20:38:18,568 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-26 20:38:18,568 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-26 20:38:18,568 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-26 20:38:18,569 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-26 20:38:18,569 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-26 20:38:18,569 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,569 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,569 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,569 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,569 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,569 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,569 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-26 20:38:18,569 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-26 20:38:18,569 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-26 20:38:18,570 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-26 20:38:18,570 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-26 20:38:18,570 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-26 20:38:18,570 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-26 20:38:18,570 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-26 20:38:18,570 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-26 20:38:18,570 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-26 20:38:18,570 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-26 20:38:18,570 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,570 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,570 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,570 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,571 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,571 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,571 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-26 20:38:18,571 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-26 20:38:18,571 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-26 20:38:18,571 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-26 20:38:18,571 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-26 20:38:18,571 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-26 20:38:18,571 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-26 20:38:18,572 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 31 600) the Hoare annotation is: (let ((.cse10 (= ~a28~0 |old(~a28~0)|)) (.cse1 (= ~a17~0 |old(~a17~0)|)) (.cse2 (= ~a11~0 |old(~a11~0)|)) (.cse12 (= ~a19~0 1)) (.cse3 (= ~a25~0 |old(~a25~0)|))) (let ((.cse6 (not (= 0 |old(~a19~0)|))) (.cse4 (= ~a28~0 10)) (.cse5 (not (= 10 |old(~a28~0)|))) (.cse8 (not (= |old(~a19~0)| |old(~a25~0)|))) (.cse14 (and .cse10 .cse1 .cse2 .cse12 .cse3)) (.cse9 (= ~a19~0 |old(~a19~0)|)) (.cse7 (not (= |old(~a19~0)| 1))) (.cse11 (not (<= |old(~a28~0)| 9))) (.cse0 (= ~a19~0 0)) (.cse13 (not (= 0 |old(~a11~0)|))) (.cse15 (not (= |old(~a11~0)| |old(~a19~0)|)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4) .cse5 .cse6) (or .cse7 (not (= 11 |old(~a28~0)|)) .cse8 (and .cse1 .cse2 (= ~a25~0 1) .cse9 (= ~a28~0 11))) (or (and .cse10 .cse0 .cse1 .cse2 .cse3) .cse6 .cse11) (or (and .cse1 .cse2 .cse12 .cse3 .cse4) .cse5 .cse7) (or .cse7 .cse13 .cse11 .cse14) (or .cse7 .cse8 .cse15 .cse11 .cse14) (or (not (<= |old(~a25~0)| 1)) (not (<= |old(~a11~0)| 1)) (not (<= 7 |old(~a17~0)|)) (not (<= |old(~a17~0)| 7)) (and (<= 1 ~a11~0) (<= 7 ~a17~0) (<= 9 ~a28~0) (<= 1 ~a25~0) (<= ~a11~0 1) (<= ~a28~0 9) (<= ~a25~0 1) (<= ~a17~0 7) .cse9) .cse11 (not (= ~a21~0 1)) (not (<= 1 |old(~a11~0)|)) (not (<= 1 |old(~a25~0)|)) (not (<= |old(~a19~0)| 0)) (not (<= 9 |old(~a28~0)|))) (or .cse7 (and .cse10 .cse2 .cse12 .cse3 (= ~a17~0 8)) (not (= 8 |old(~a17~0)|)) .cse11) (or (and .cse10 (= ~a25~0 ~a11~0) .cse0 .cse1 .cse3) .cse13 .cse15 (not (= |old(~a11~0)| |old(~a25~0)|)))))) [2020-10-26 20:38:18,572 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-26 20:38:18,572 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-26 20:38:18,572 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-26 20:38:18,572 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-26 20:38:18,572 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-26 20:38:18,572 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-26 20:38:18,572 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-26 20:38:18,573 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,573 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,573 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,573 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,573 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,573 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,573 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-26 20:38:18,573 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-26 20:38:18,573 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-26 20:38:18,573 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-26 20:38:18,573 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-26 20:38:18,573 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-26 20:38:18,574 INFO L270 CegarLoopResult]: At program point L492(line 492) the Hoare annotation is: (let ((.cse0 (not (= 10 |old(~a28~0)|))) (.cse1 (not (= 0 |old(~a19~0)|))) (.cse5 (not (= 0 |old(~a11~0)|))) (.cse2 (not (= |old(~a19~0)| 1))) (.cse3 (not (= |old(~a19~0)| |old(~a25~0)|))) (.cse6 (not (= |old(~a11~0)| |old(~a19~0)|))) (.cse4 (not (<= |old(~a28~0)| 9)))) (and (or .cse0 .cse1) (or .cse0 .cse2) (or .cse2 (not (= 11 |old(~a28~0)|)) .cse3) (or .cse1 .cse4) (or .cse5 .cse6 (not (= |old(~a11~0)| |old(~a25~0)|))) (or .cse2 .cse5 .cse4) (or (not (<= |old(~a25~0)| 1)) (not (<= |old(~a11~0)| 1)) (not (<= 7 |old(~a17~0)|)) (not (<= |old(~a17~0)| 7)) .cse4 (not (= ~a21~0 1)) (not (<= 1 |old(~a11~0)|)) (not (<= 1 |old(~a25~0)|)) (not (<= |old(~a19~0)| 0)) (not (<= 9 |old(~a28~0)|))) (or .cse2 (not (= 8 |old(~a17~0)|)) .cse4) (or .cse2 .cse3 .cse6 .cse4))) [2020-10-26 20:38:18,574 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-26 20:38:18,574 INFO L274 CegarLoopResult]: For program point L492-1(line 492) no Hoare annotation was computed. [2020-10-26 20:38:18,574 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-26 20:38:18,574 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-26 20:38:18,574 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-26 20:38:18,574 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-26 20:38:18,574 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-26 20:38:18,574 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,574 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,575 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,575 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,575 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,575 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,575 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-26 20:38:18,575 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-26 20:38:18,575 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-26 20:38:18,575 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-26 20:38:18,575 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-26 20:38:18,575 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-26 20:38:18,575 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-26 20:38:18,576 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-26 20:38:18,576 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-26 20:38:18,576 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-26 20:38:18,576 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-26 20:38:18,576 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-26 20:38:18,576 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-26 20:38:18,576 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-26 20:38:18,576 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-26 20:38:18,576 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-26 20:38:18,576 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,576 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,576 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,576 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,577 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:18,577 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-26 20:38:18,577 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-26 20:38:18,579 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-26 20:38:18,579 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-26 20:38:18,579 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:38:18,579 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a25~0 ~a11~0) (= ~a19~0 1) (= ~a21~0 1) (= ~a17~0 8) (= 7 ~a28~0) (= ~a11~0 0)) [2020-10-26 20:38:18,579 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:38:18,579 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:38:18,579 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse1 (<= ~a28~0 9)) (.cse0 (= ~a19~0 1)) (.cse3 (= ~a11~0 0)) (.cse4 (= ~a25~0 ~a19~0)) (.cse5 (= ~a11~0 ~a19~0)) (.cse2 (= ~a19~0 0)) (.cse6 (= ~a28~0 10))) (or (and .cse0 (= ~a17~0 8) .cse1) (not (= |old(~a19~0)| 1)) (not (= 8 |old(~a17~0)|)) (and .cse2 .cse1) (and .cse3 .cse1 (= ~a19~0 |old(~a19~0)|)) (and .cse0 .cse1 .cse4 .cse5) (not (= 0 |old(~a11~0)|)) (and (<= 1 ~a11~0) (<= ~a19~0 0) (<= 7 ~a17~0) (<= 9 ~a28~0) (<= 1 ~a25~0) (<= ~a11~0 1) .cse1 (<= ~a25~0 1) (<= ~a17~0 7)) (not (= ~a21~0 1)) (and .cse0 .cse6) (and (= ~a25~0 1) .cse4 (= ~a28~0 11)) (and .cse3 .cse4 .cse5) (not (= 7 |old(~a28~0)|)) (not (= |old(~a11~0)| |old(~a25~0)|)) (and .cse2 .cse6))) [2020-10-26 20:38:18,580 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 602 619) the Hoare annotation is: (or (and (= ~a25~0 ~a11~0) (= ~a19~0 1) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8) (= 7 ~a28~0)) (not (= |old(~a19~0)| 1)) (not (= 0 |old(~a11~0)|)) (not (= 8 |old(~a17~0)|)) (not (= ~a21~0 1)) (not (= 7 |old(~a28~0)|)) (not (= |old(~a11~0)| |old(~a25~0)|))) [2020-10-26 20:38:18,580 INFO L274 CegarLoopResult]: For program point L608-3(lines 602 619) no Hoare annotation was computed. [2020-10-26 20:38:18,580 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 602 619) no Hoare annotation was computed. [2020-10-26 20:38:18,580 INFO L270 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (let ((.cse1 (<= ~a28~0 9)) (.cse0 (= ~a19~0 1)) (.cse3 (= ~a11~0 0)) (.cse4 (= ~a25~0 ~a19~0)) (.cse5 (= ~a11~0 ~a19~0)) (.cse2 (= ~a19~0 0)) (.cse6 (= ~a28~0 10))) (or (and .cse0 (= ~a17~0 8) .cse1) (not (= |old(~a19~0)| 1)) (not (= 8 |old(~a17~0)|)) (and .cse2 .cse1) (and .cse3 .cse1 (= ~a19~0 |old(~a19~0)|)) (and .cse0 .cse1 .cse4 .cse5) (not (= 0 |old(~a11~0)|)) (and (<= 1 ~a11~0) (<= ~a19~0 0) (<= 7 ~a17~0) (<= 9 ~a28~0) (<= 1 ~a25~0) (<= ~a11~0 1) .cse1 (<= ~a25~0 1) (<= ~a17~0 7)) (not (= ~a21~0 1)) (and .cse0 .cse6) (and (= ~a25~0 1) .cse4 (= ~a28~0 11)) (and .cse3 .cse4 .cse5) (not (= 7 |old(~a28~0)|)) (not (= |old(~a11~0)| |old(~a25~0)|)) (and .cse2 .cse6))) [2020-10-26 20:38:18,580 INFO L274 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-10-26 20:38:18,580 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-26 20:38:18,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:38:18 BoogieIcfgContainer [2020-10-26 20:38:18,628 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:38:18,632 INFO L168 Benchmark]: Toolchain (without parser) took 68242.48 ms. Allocated memory was 158.3 MB in the beginning and 868.2 MB in the end (delta: 709.9 MB). Free memory was 131.4 MB in the beginning and 499.0 MB in the end (delta: -367.7 MB). Peak memory consumption was 517.1 MB. Max. memory is 8.0 GB. [2020-10-26 20:38:18,633 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 158.3 MB. Free memory is still 129.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:38:18,634 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.64 ms. Allocated memory is still 158.3 MB. Free memory was 130.7 MB in the beginning and 105.2 MB in the end (delta: 25.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:38:18,637 INFO L168 Benchmark]: Boogie Preprocessor took 186.47 ms. Allocated memory is still 158.3 MB. Free memory was 105.2 MB in the beginning and 136.3 MB in the end (delta: -31.2 MB). Peak memory consumption was 5.3 MB. Max. memory is 8.0 GB. [2020-10-26 20:38:18,641 INFO L168 Benchmark]: RCFGBuilder took 1652.81 ms. Allocated memory was 158.3 MB in the beginning and 191.9 MB in the end (delta: 33.6 MB). Free memory was 136.3 MB in the beginning and 152.5 MB in the end (delta: -16.2 MB). Peak memory consumption was 89.3 MB. Max. memory is 8.0 GB. [2020-10-26 20:38:18,642 INFO L168 Benchmark]: TraceAbstraction took 65671.39 ms. Allocated memory was 191.9 MB in the beginning and 868.2 MB in the end (delta: 676.3 MB). Free memory was 151.9 MB in the beginning and 499.0 MB in the end (delta: -347.1 MB). Peak memory consumption was 503.3 MB. Max. memory is 8.0 GB. [2020-10-26 20:38:18,651 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 158.3 MB. Free memory is still 129.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 719.64 ms. Allocated memory is still 158.3 MB. Free memory was 130.7 MB in the beginning and 105.2 MB in the end (delta: 25.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 186.47 ms. Allocated memory is still 158.3 MB. Free memory was 105.2 MB in the beginning and 136.3 MB in the end (delta: -31.2 MB). Peak memory consumption was 5.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1652.81 ms. Allocated memory was 158.3 MB in the beginning and 191.9 MB in the end (delta: 33.6 MB). Free memory was 136.3 MB in the beginning and 152.5 MB in the end (delta: -16.2 MB). Peak memory consumption was 89.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 65671.39 ms. Allocated memory was 191.9 MB in the beginning and 868.2 MB in the end (delta: 676.3 MB). Free memory was 151.9 MB in the beginning and 499.0 MB in the end (delta: -347.1 MB). Peak memory consumption was 503.3 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: 608]: Loop Invariant Derived loop invariant: (((((((((((((((a19 == 1 && a17 == 8) && a28 <= 9) || !(\old(a19) == 1)) || !(8 == \old(a17))) || (a19 == 0 && a28 <= 9)) || ((a11 == 0 && a28 <= 9) && a19 == \old(a19))) || (((a19 == 1 && a28 <= 9) && a25 == a19) && a11 == a19)) || !(0 == \old(a11))) || ((((((((1 <= a11 && a19 <= 0) && 7 <= a17) && 9 <= a28) && 1 <= a25) && a11 <= 1) && a28 <= 9) && a25 <= 1) && a17 <= 7)) || !(a21 == 1)) || (a19 == 1 && a28 == 10)) || ((a25 == 1 && a25 == a19) && a28 == 11)) || ((a11 == 0 && a25 == a19) && a11 == a19)) || !(7 == \old(a28))) || !(\old(a11) == \old(a25))) || (a19 == 0 && a28 == 10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 59.8s, OverallIterations: 12, TraceHistogramMax: 5, AutomataDifference: 25.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 433 SDtfs, 5357 SDslu, 628 SDs, 0 SdLazy, 10179 SolverSat, 1561 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 212 GetRequests, 104 SyntacticMatches, 4 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3251occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 12 MinimizatonAttempts, 1659 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 340 PreInvPairs, 404 NumberOfFragments, 830 HoareAnnotationTreeSize, 340 FomulaSimplifications, 932405 FormulaSimplificationTreeSizeReduction, 2.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 13033 FormulaSimplificationTreeSizeReductionInter, 3.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 31.7s InterpolantComputationTime, 2161 NumberOfCodeBlocks, 2161 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2149 ConstructedInterpolants, 0 QuantifiedInterpolants, 1869090 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 1 PerfectInterpolantSequences, 996/1220 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...