/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_label32.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:38:59,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:38:59,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:38:59,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:39:00,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:39:00,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:39:00,010 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:39:00,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:39:00,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:39:00,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:39:00,026 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:39:00,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:39:00,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:39:00,031 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:39:00,035 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:39:00,037 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:39:00,039 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:39:00,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:39:00,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:39:00,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:39:00,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:39:00,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:39:00,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:39:00,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:39:00,081 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:39:00,082 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:39:00,083 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:39:00,084 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:39:00,085 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:39:00,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:39:00,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:39:00,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:39:00,090 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:39:00,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:39:00,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:39:00,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:39:00,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:39:00,096 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:39:00,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:39:00,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:39:00,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:39:00,106 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 20:39:00,161 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:39:00,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:39:00,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:39:00,166 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:39:00,166 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:39:00,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:39:00,167 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:39:00,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:39:00,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:39:00,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:39:00,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:39:00,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:39:00,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:39:00,169 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:39:00,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:39:00,170 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:39:00,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:39:00,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:39:00,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:39:00,170 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:39:00,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:39:00,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:39:00,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:39:00,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:39:00,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:39:00,172 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:39:00,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:39:00,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:39:00,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:39:00,172 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:39:00,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:39:00,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:39:00,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:39:00,617 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:39:00,618 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:39:00,619 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label32.c [2020-10-26 20:39:00,716 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/74a5e600f/bf945a83246f4268a96ae045faffe0c7/FLAG026864ce1 [2020-10-26 20:39:01,541 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:39:01,541 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label32.c [2020-10-26 20:39:01,563 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/74a5e600f/bf945a83246f4268a96ae045faffe0c7/FLAG026864ce1 [2020-10-26 20:39:01,769 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/74a5e600f/bf945a83246f4268a96ae045faffe0c7 [2020-10-26 20:39:01,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:39:01,784 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:39:01,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:39:01,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:39:01,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:39:01,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:39:01" (1/1) ... [2020-10-26 20:39:01,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fe8493e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:01, skipping insertion in model container [2020-10-26 20:39:01,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:39:01" (1/1) ... [2020-10-26 20:39:01,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:39:01,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:39:02,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:39:02,459 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:39:02,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:39:02,600 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:39:02,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:02 WrapperNode [2020-10-26 20:39:02,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:39:02,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:39:02,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:39:02,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:39:02,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:02" (1/1) ... [2020-10-26 20:39:02,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:02" (1/1) ... [2020-10-26 20:39:02,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:02" (1/1) ... [2020-10-26 20:39:02,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:02" (1/1) ... [2020-10-26 20:39:02,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:02" (1/1) ... [2020-10-26 20:39:02,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:02" (1/1) ... [2020-10-26 20:39:02,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:02" (1/1) ... [2020-10-26 20:39:02,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:39:02,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:39:02,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:39:02,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:39:02,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:02" (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 20:39:02,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:39:02,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:39:02,843 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:39:02,843 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:39:02,844 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:39:02,844 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:39:02,844 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:39:02,844 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:39:02,845 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:39:02,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:39:02,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:39:02,846 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:39:02,846 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:39:02,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:39:02,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:39:02,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:39:02,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:39:02,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:39:02,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:39:04,175 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:39:04,175 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:39:04,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:39:04 BoogieIcfgContainer [2020-10-26 20:39:04,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:39:04,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:39:04,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:39:04,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:39:04,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:39:01" (1/3) ... [2020-10-26 20:39:04,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd583d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:39:04, skipping insertion in model container [2020-10-26 20:39:04,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:39:02" (2/3) ... [2020-10-26 20:39:04,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd583d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:39:04, skipping insertion in model container [2020-10-26 20:39:04,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:39:04" (3/3) ... [2020-10-26 20:39:04,188 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label32.c [2020-10-26 20:39:04,201 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:39:04,207 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:39:04,221 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:39:04,253 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:39:04,253 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:39:04,253 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:39:04,254 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:39:04,254 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:39:04,254 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:39:04,254 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:39:04,254 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:39:04,302 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-26 20:39:04,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-26 20:39:04,315 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:39:04,317 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, 1, 1, 1] [2020-10-26 20:39:04,317 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:39:04,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:39:04,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1831200597, now seen corresponding path program 1 times [2020-10-26 20:39:04,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:39:04,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1812963082] [2020-10-26 20:39:04,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:39:04,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:04,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:04,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:06,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:06,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-26 20:39:06,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:39:06,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1935 [2020-10-26 20:39:06,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:06,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-26 20:39:06,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:39:06,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-26 20:39:06,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:39:07,227 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 41 [2020-10-26 20:39:07,427 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 42 [2020-10-26 20:39:07,606 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 38 [2020-10-26 20:39:07,771 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 33 [2020-10-26 20:39:07,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:39:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:08,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:08,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:08,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:39:08,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:08,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-26 20:39:08,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:08,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:39:08,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:39:08,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:39:08,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:08,220 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 20:39:08,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1812963082] [2020-10-26 20:39:08,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:39:08,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-26 20:39:08,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366023098] [2020-10-26 20:39:08,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-26 20:39:08,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:39:08,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-26 20:39:08,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:39:08,252 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 11 states. [2020-10-26 20:39:08,427 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:39:08,591 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-26 20:39:08,747 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-26 20:39:08,926 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-26 20:39:09,272 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 119 [2020-10-26 20:39:09,704 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 116 [2020-10-26 20:39:10,462 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 112 [2020-10-26 20:39:11,094 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 107 [2020-10-26 20:39:12,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:39:12,334 INFO L93 Difference]: Finished difference Result 541 states and 898 transitions. [2020-10-26 20:39:12,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 20:39:12,337 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 116 [2020-10-26 20:39:12,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:39:12,361 INFO L225 Difference]: With dead ends: 541 [2020-10-26 20:39:12,361 INFO L226 Difference]: Without dead ends: 237 [2020-10-26 20:39:12,380 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2020-10-26 20:39:12,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-10-26 20:39:12,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 234. [2020-10-26 20:39:12,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-26 20:39:12,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 324 transitions. [2020-10-26 20:39:12,485 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 324 transitions. Word has length 116 [2020-10-26 20:39:12,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:39:12,487 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 324 transitions. [2020-10-26 20:39:12,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-26 20:39:12,487 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 324 transitions. [2020-10-26 20:39:12,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-26 20:39:12,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:39:12,503 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:39:12,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:39:12,503 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:39:12,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:39:12,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1567226380, now seen corresponding path program 1 times [2020-10-26 20:39:12,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:39:12,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [375270222] [2020-10-26 20:39:12,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:39:12,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:12,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:12,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:12,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:14,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:14,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-26 20:39:14,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:39:14,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1815 [2020-10-26 20:39:14,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:14,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:39:14,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:39:14,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-26 20:39:14,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:39:14,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:39:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:14,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:14,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:14,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:39:14,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:14,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-26 20:39:14,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:14,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:39:14,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:39:14,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:39:14,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:39:14,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:39:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:14,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:14,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:14,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:14,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:39:14,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:39:14,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-26 20:39:14,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:14,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:39:14,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:39:14,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:39:14,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:14,747 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:39:14,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [375270222] [2020-10-26 20:39:14,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:39:14,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:39:14,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737509193] [2020-10-26 20:39:14,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:39:14,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:39:14,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:39:14,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:39:14,759 INFO L87 Difference]: Start difference. First operand 234 states and 324 transitions. Second operand 7 states. [2020-10-26 20:39:16,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:39:16,384 INFO L93 Difference]: Finished difference Result 618 states and 888 transitions. [2020-10-26 20:39:16,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:39:16,386 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 125 [2020-10-26 20:39:16,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:39:16,395 INFO L225 Difference]: With dead ends: 618 [2020-10-26 20:39:16,395 INFO L226 Difference]: Without dead ends: 390 [2020-10-26 20:39:16,397 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:39:16,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2020-10-26 20:39:16,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 381. [2020-10-26 20:39:16,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-10-26 20:39:16,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 549 transitions. [2020-10-26 20:39:16,461 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 549 transitions. Word has length 125 [2020-10-26 20:39:16,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:39:16,465 INFO L481 AbstractCegarLoop]: Abstraction has 381 states and 549 transitions. [2020-10-26 20:39:16,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:39:16,466 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 549 transitions. [2020-10-26 20:39:16,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-26 20:39:16,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:39:16,470 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:39:16,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:39:16,471 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:39:16,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:39:16,475 INFO L82 PathProgramCache]: Analyzing trace with hash -803495607, now seen corresponding path program 1 times [2020-10-26 20:39:16,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:39:16,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [112134429] [2020-10-26 20:39:16,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:39:16,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:16,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:16,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:16,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:17,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:17,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:18,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:19,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:19,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-26 20:39:19,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 20:39:19,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2656 [2020-10-26 20:39:19,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:19,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-26 20:39:19,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:39:19,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-26 20:39:19,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:19,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:39:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:19,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:19,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:19,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:39:19,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:19,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:39:19,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:19,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:39:19,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:39:19,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:39:19,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:19,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:39:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:19,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:19,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:19,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:19,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:39:19,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:39:19,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:39:19,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:19,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:39:19,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:39:19,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:39:19,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:19,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:39:19,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:19,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:19,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:19,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:19,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:39:19,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:39:19,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 20:39:19,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:19,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:39:19,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:39:19,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:39:19,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:19,530 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-26 20:39:19,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [112134429] [2020-10-26 20:39:19,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:39:19,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:39:19,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594732238] [2020-10-26 20:39:19,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:39:19,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:39:19,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:39:19,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:39:19,540 INFO L87 Difference]: Start difference. First operand 381 states and 549 transitions. Second operand 7 states. [2020-10-26 20:39:21,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:39:21,115 INFO L93 Difference]: Finished difference Result 1079 states and 1624 transitions. [2020-10-26 20:39:21,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:39:21,116 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 140 [2020-10-26 20:39:21,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:39:21,126 INFO L225 Difference]: With dead ends: 1079 [2020-10-26 20:39:21,126 INFO L226 Difference]: Without dead ends: 704 [2020-10-26 20:39:21,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:39:21,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2020-10-26 20:39:21,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 683. [2020-10-26 20:39:21,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 683 states. [2020-10-26 20:39:21,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 968 transitions. [2020-10-26 20:39:21,178 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 968 transitions. Word has length 140 [2020-10-26 20:39:21,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:39:21,179 INFO L481 AbstractCegarLoop]: Abstraction has 683 states and 968 transitions. [2020-10-26 20:39:21,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:39:21,179 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 968 transitions. [2020-10-26 20:39:21,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-26 20:39:21,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:39:21,182 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, 1, 1, 1] [2020-10-26 20:39:21,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:39:21,183 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:39:21,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:39:21,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1804855099, now seen corresponding path program 1 times [2020-10-26 20:39:21,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:39:21,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1360578246] [2020-10-26 20:39:21,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:39:21,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:21,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:21,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:21,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:22,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:23,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:23,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-26 20:39:23,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:39:23,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2032 [2020-10-26 20:39:23,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:23,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:39:23,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:39:23,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-26 20:39:23,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:23,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:39:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:23,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:23,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:23,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:39:23,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:23,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:39:23,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:23,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:39:23,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:39:23,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:39:23,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:23,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:39:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:23,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:23,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:23,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:39:23,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:23,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:39:23,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:23,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:39:23,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:39:23,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:39:23,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:23,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:39:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:23,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:23,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:23,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-26 20:39:23,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:23,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-26 20:39:23,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:23,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:39:23,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:39:23,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-26 20:39:23,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:23,571 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:39:23,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1360578246] [2020-10-26 20:39:23,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:39:23,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:39:23,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736103881] [2020-10-26 20:39:23,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:39:23,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:39:23,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:39:23,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:39:23,574 INFO L87 Difference]: Start difference. First operand 683 states and 968 transitions. Second operand 8 states. [2020-10-26 20:39:25,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:39:25,746 INFO L93 Difference]: Finished difference Result 1934 states and 3251 transitions. [2020-10-26 20:39:25,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:39:25,747 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 147 [2020-10-26 20:39:25,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:39:25,762 INFO L225 Difference]: With dead ends: 1934 [2020-10-26 20:39:25,763 INFO L226 Difference]: Without dead ends: 1257 [2020-10-26 20:39:25,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:39:25,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2020-10-26 20:39:25,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1141. [2020-10-26 20:39:25,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-10-26 20:39:25,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1589 transitions. [2020-10-26 20:39:25,856 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1589 transitions. Word has length 147 [2020-10-26 20:39:25,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:39:25,857 INFO L481 AbstractCegarLoop]: Abstraction has 1141 states and 1589 transitions. [2020-10-26 20:39:25,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:39:25,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1589 transitions. [2020-10-26 20:39:25,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-26 20:39:25,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:39:25,862 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, 1, 1, 1] [2020-10-26 20:39:25,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:39:25,862 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:39:25,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:39:25,863 INFO L82 PathProgramCache]: Analyzing trace with hash -122678275, now seen corresponding path program 1 times [2020-10-26 20:39:25,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:39:25,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [418055391] [2020-10-26 20:39:25,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:39:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:25,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:26,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:26,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:26,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-26 20:39:26,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:39:26,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 654 [2020-10-26 20:39:26,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:26,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:39:26,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-26 20:39:26,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-26 20:39:26,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:26,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:39:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:26,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:26,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:26,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:39:26,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:26,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:39:26,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:26,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:39:26,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:39:26,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:39:26,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 20:39:26,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:39:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:26,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:26,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:26,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:39:26,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:26,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:39:26,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:26,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:39:26,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:39:26,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:39:26,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:26,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:39:26,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:26,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:26,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:26,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-26 20:39:26,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:26,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 20:39:26,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:26,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:39:26,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:39:26,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-26 20:39:26,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:27,177 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 20:39:27,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [418055391] [2020-10-26 20:39:27,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:39:27,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:39:27,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665833910] [2020-10-26 20:39:27,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:39:27,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:39:27,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:39:27,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:39:27,182 INFO L87 Difference]: Start difference. First operand 1141 states and 1589 transitions. Second operand 5 states. [2020-10-26 20:39:27,574 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:39:28,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:39:28,545 INFO L93 Difference]: Finished difference Result 2372 states and 3369 transitions. [2020-10-26 20:39:28,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:39:28,545 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 151 [2020-10-26 20:39:28,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:39:28,555 INFO L225 Difference]: With dead ends: 2372 [2020-10-26 20:39:28,555 INFO L226 Difference]: Without dead ends: 1148 [2020-10-26 20:39:28,559 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 20:39:28,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2020-10-26 20:39:28,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 1139. [2020-10-26 20:39:28,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1139 states. [2020-10-26 20:39:28,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1139 states to 1139 states and 1580 transitions. [2020-10-26 20:39:28,616 INFO L78 Accepts]: Start accepts. Automaton has 1139 states and 1580 transitions. Word has length 151 [2020-10-26 20:39:28,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:39:28,616 INFO L481 AbstractCegarLoop]: Abstraction has 1139 states and 1580 transitions. [2020-10-26 20:39:28,616 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:39:28,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1139 states and 1580 transitions. [2020-10-26 20:39:28,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-26 20:39:28,621 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:39:28,622 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 20:39:28,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:39:28,622 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:39:28,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:39:28,623 INFO L82 PathProgramCache]: Analyzing trace with hash 137111867, now seen corresponding path program 1 times [2020-10-26 20:39:28,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:39:28,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1276791691] [2020-10-26 20:39:28,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:39:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:28,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:28,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:28,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:29,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:31,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:32,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:33,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:33,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-26 20:39:33,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 20:39:33,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-26 20:39:33,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:33,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:39:33,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:39:33,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-26 20:39:33,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:33,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:39:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:33,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:33,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:33,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:39:33,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:33,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:39:33,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:33,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:39:33,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:39:33,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:39:33,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:33,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:39:33,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:33,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:33,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:33,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:33,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:39:33,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:39:33,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 20:39:33,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:33,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:39:33,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:39:33,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:39:33,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:33,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:39:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:33,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:33,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:33,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-26 20:39:33,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:33,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 20:39:33,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:33,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:39:33,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:39:33,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-26 20:39:33,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:33,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-26 20:39:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:33,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:33,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:33,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-26 20:39:33,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:33,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:39:33,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:33,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:39:33,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-26 20:39:33,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:39:33,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:34,001 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 62 proven. 28 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-26 20:39:34,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1276791691] [2020-10-26 20:39:34,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:39:34,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:39:34,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698661767] [2020-10-26 20:39:34,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:39:34,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:39:34,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:39:34,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:39:34,004 INFO L87 Difference]: Start difference. First operand 1139 states and 1580 transitions. Second operand 7 states. [2020-10-26 20:39:35,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:39:35,684 INFO L93 Difference]: Finished difference Result 2449 states and 3474 transitions. [2020-10-26 20:39:35,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:39:35,685 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 182 [2020-10-26 20:39:35,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:39:35,693 INFO L225 Difference]: With dead ends: 2449 [2020-10-26 20:39:35,693 INFO L226 Difference]: Without dead ends: 1316 [2020-10-26 20:39:35,697 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:39:35,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2020-10-26 20:39:35,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1143. [2020-10-26 20:39:35,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1143 states. [2020-10-26 20:39:35,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1548 transitions. [2020-10-26 20:39:35,746 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1548 transitions. Word has length 182 [2020-10-26 20:39:35,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:39:35,746 INFO L481 AbstractCegarLoop]: Abstraction has 1143 states and 1548 transitions. [2020-10-26 20:39:35,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:39:35,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1548 transitions. [2020-10-26 20:39:35,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-26 20:39:35,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:39:35,752 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 20:39:35,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:39:35,752 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:39:35,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:39:35,753 INFO L82 PathProgramCache]: Analyzing trace with hash -961831014, now seen corresponding path program 1 times [2020-10-26 20:39:35,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:39:35,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1540067631] [2020-10-26 20:39:35,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:39:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:35,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:35,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:36,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:37,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:38,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:39,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:39,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-26 20:39:39,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:39:39,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3448 [2020-10-26 20:39:39,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:39,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:39:39,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-26 20:39:39,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-26 20:39:39,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:39,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:39:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:39,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:39,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:39,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:39:39,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:39,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:39:39,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:39,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:39:39,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:39:39,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:39:39,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:39,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:39:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:39,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:39,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:39,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:39:39,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:39,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:39:39,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:39,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:39:39,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:39:39,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-26 20:39:39,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:39,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:39:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:39,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:39,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:39,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-26 20:39:39,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:39,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-26 20:39:39,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:39,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:39:39,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:39:39,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-26 20:39:39,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:39,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-26 20:39:39,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:39,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:39,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:39,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-26 20:39:39,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:39,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:39:39,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:39,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:39:39,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-26 20:39:39,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:39:39,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:39,561 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 68 proven. 27 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-26 20:39:39,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1540067631] [2020-10-26 20:39:39,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:39:39,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:39:39,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847140381] [2020-10-26 20:39:39,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:39:39,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:39:39,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:39:39,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:39:39,565 INFO L87 Difference]: Start difference. First operand 1143 states and 1548 transitions. Second operand 7 states. [2020-10-26 20:39:41,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:39:41,433 INFO L93 Difference]: Finished difference Result 2914 states and 4018 transitions. [2020-10-26 20:39:41,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:39:41,434 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 183 [2020-10-26 20:39:41,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:39:41,446 INFO L225 Difference]: With dead ends: 2914 [2020-10-26 20:39:41,446 INFO L226 Difference]: Without dead ends: 1314 [2020-10-26 20:39:41,451 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:39:41,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2020-10-26 20:39:41,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1292. [2020-10-26 20:39:41,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1292 states. [2020-10-26 20:39:41,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1625 transitions. [2020-10-26 20:39:41,499 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1625 transitions. Word has length 183 [2020-10-26 20:39:41,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:39:41,499 INFO L481 AbstractCegarLoop]: Abstraction has 1292 states and 1625 transitions. [2020-10-26 20:39:41,499 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:39:41,499 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1625 transitions. [2020-10-26 20:39:41,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-26 20:39:41,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:39:41,505 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 20:39:41,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:39:41,506 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:39:41,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:39:41,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1585733330, now seen corresponding path program 1 times [2020-10-26 20:39:41,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:39:41,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2074506620] [2020-10-26 20:39:41,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:39:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:41,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:41,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:41,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:41,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:43,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:44,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:45,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:45,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-10-26 20:39:45,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 20:39:45,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3726 [2020-10-26 20:39:45,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:45,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:39:45,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:39:45,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-26 20:39:45,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:45,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:39:45,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:45,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:45,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:45,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:39:45,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:45,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:39:45,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:45,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:39:45,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:39:45,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:39:45,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:45,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:39:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:45,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:45,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:45,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:39:45,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:45,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:39:45,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:45,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:39:45,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:39:45,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-26 20:39:45,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:45,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:39:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:45,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:45,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:45,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:45,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-26 20:39:45,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:39:45,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-26 20:39:45,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:45,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:39:45,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:39:45,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-26 20:39:45,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:45,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:39:45,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:45,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:45,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:45,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-26 20:39:45,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:45,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-26 20:39:45,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:45,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:39:45,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:39:45,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-26 20:39:45,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:45,713 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 82 proven. 6 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-10-26 20:39:45,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2074506620] [2020-10-26 20:39:45,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:39:45,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:39:45,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671604343] [2020-10-26 20:39:45,716 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:39:45,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:39:45,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:39:45,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:39:45,723 INFO L87 Difference]: Start difference. First operand 1292 states and 1625 transitions. Second operand 7 states. [2020-10-26 20:39:47,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:39:47,361 INFO L93 Difference]: Finished difference Result 2911 states and 3786 transitions. [2020-10-26 20:39:47,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:39:47,361 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 187 [2020-10-26 20:39:47,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:39:47,372 INFO L225 Difference]: With dead ends: 2911 [2020-10-26 20:39:47,372 INFO L226 Difference]: Without dead ends: 1625 [2020-10-26 20:39:47,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 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 20:39:47,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1625 states. [2020-10-26 20:39:47,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1625 to 1596. [2020-10-26 20:39:47,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1596 states. [2020-10-26 20:39:47,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1596 states to 1596 states and 1946 transitions. [2020-10-26 20:39:47,448 INFO L78 Accepts]: Start accepts. Automaton has 1596 states and 1946 transitions. Word has length 187 [2020-10-26 20:39:47,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:39:47,448 INFO L481 AbstractCegarLoop]: Abstraction has 1596 states and 1946 transitions. [2020-10-26 20:39:47,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:39:47,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1596 states and 1946 transitions. [2020-10-26 20:39:47,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-10-26 20:39:47,456 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:39:47,457 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, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:39:47,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:39:47,457 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:39:47,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:39:47,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1691721775, now seen corresponding path program 1 times [2020-10-26 20:39:47,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:39:47,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [134064665] [2020-10-26 20:39:47,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:39:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:47,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:47,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:47,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:48,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:48,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:48,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:52,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:52,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-26 20:39:52,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 20:39:52,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-26 20:39:52,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:52,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:39:52,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:39:52,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-26 20:39:52,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:52,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:39:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:52,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:52,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:52,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:39:52,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:52,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:39:52,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:52,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:39:52,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:39:52,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:39:52,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:52,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:39:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:52,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:52,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:52,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:39:52,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:52,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:39:52,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:52,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:39:52,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:39:52,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:39:52,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:52,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:39:52,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:52,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:52,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:52,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:52,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-26 20:39:52,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:39:52,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-26 20:39:52,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:52,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:39:52,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:39:52,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-26 20:39:52,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:52,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 20:39:52,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:52,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:52,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:52,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-26 20:39:52,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:52,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:39:52,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:52,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:39:52,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-26 20:39:52,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:39:52,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:52,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-26 20:39:52,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:52,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:52,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:52,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-26 20:39:52,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:52,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 20:39:52,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:52,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:39:52,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-26 20:39:52,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:39:52,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:53,006 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 142 proven. 78 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-10-26 20:39:53,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [134064665] [2020-10-26 20:39:53,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:39:53,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:39:53,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839266128] [2020-10-26 20:39:53,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:39:53,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:39:53,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:39:53,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:39:53,010 INFO L87 Difference]: Start difference. First operand 1596 states and 1946 transitions. Second operand 8 states. [2020-10-26 20:39:54,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:39:54,686 INFO L93 Difference]: Finished difference Result 4138 states and 5177 transitions. [2020-10-26 20:39:54,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:39:54,687 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 259 [2020-10-26 20:39:54,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:39:54,701 INFO L225 Difference]: With dead ends: 4138 [2020-10-26 20:39:54,702 INFO L226 Difference]: Without dead ends: 2548 [2020-10-26 20:39:54,708 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:39:54,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2548 states. [2020-10-26 20:39:54,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2548 to 2497. [2020-10-26 20:39:54,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2497 states. [2020-10-26 20:39:54,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2497 states to 2497 states and 3023 transitions. [2020-10-26 20:39:54,793 INFO L78 Accepts]: Start accepts. Automaton has 2497 states and 3023 transitions. Word has length 259 [2020-10-26 20:39:54,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:39:54,793 INFO L481 AbstractCegarLoop]: Abstraction has 2497 states and 3023 transitions. [2020-10-26 20:39:54,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:39:54,794 INFO L276 IsEmpty]: Start isEmpty. Operand 2497 states and 3023 transitions. [2020-10-26 20:39:54,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-10-26 20:39:54,803 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:39:54,804 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:39:54,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:39:54,805 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:39:54,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:39:54,805 INFO L82 PathProgramCache]: Analyzing trace with hash -895184040, now seen corresponding path program 1 times [2020-10-26 20:39:54,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:39:54,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [534439443] [2020-10-26 20:39:54,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:39:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:54,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:54,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:55,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:56,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:56,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:56,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:56,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:56,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:59,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:59,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-26 20:39:59,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-26 20:39:59,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4383 [2020-10-26 20:39:59,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:59,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 20:39:59,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:39:59,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-26 20:39:59,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:59,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:39:59,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:59,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:59,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:59,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:39:59,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:39:59,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:39:59,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:59,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:39:59,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:39:59,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:39:59,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:59,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:39:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:59,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:59,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:59,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:59,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:39:59,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:39:59,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:39:59,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:59,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:39:59,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:39:59,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-26 20:39:59,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:59,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:39:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:59,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:59,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:59,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:59,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 20:39:59,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:39:59,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-26 20:39:59,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:59,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:39:59,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:39:59,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-26 20:39:59,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:59,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-26 20:39:59,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:39:59,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:59,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:39:59,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:39:59,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-26 20:39:59,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:39:59,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-26 20:39:59,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:39:59,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-26 20:39:59,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:39:59,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-26 20:39:59,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:39:59,925 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 133 proven. 7 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-10-26 20:39:59,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [534439443] [2020-10-26 20:39:59,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:39:59,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:39:59,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767878296] [2020-10-26 20:39:59,927 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:39:59,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:39:59,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:39:59,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:39:59,928 INFO L87 Difference]: Start difference. First operand 2497 states and 3023 transitions. Second operand 7 states. [2020-10-26 20:40:01,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:40:01,415 INFO L93 Difference]: Finished difference Result 4952 states and 6018 transitions. [2020-10-26 20:40:01,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:40:01,415 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 259 [2020-10-26 20:40:01,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:40:01,416 INFO L225 Difference]: With dead ends: 4952 [2020-10-26 20:40:01,416 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:40:01,428 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:40:01,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:40:01,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:40:01,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:40:01,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:40:01,429 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 259 [2020-10-26 20:40:01,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:40:01,429 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:40:01,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:40:01,429 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:40:01,429 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:40:01,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:40:01,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:40:02,089 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 178 [2020-10-26 20:40:02,448 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 189 [2020-10-26 20:40:02,626 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 37 [2020-10-26 20:40:03,280 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 82 [2020-10-26 20:40:03,842 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 52 [2020-10-26 20:40:04,370 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 52 [2020-10-26 20:40:04,555 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 54 [2020-10-26 20:40:04,560 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:40:04,560 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:40:04,560 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:40:04,560 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:40:04,560 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:40:04,561 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 20:40:04,563 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:40:04,563 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-26 20:40:04,563 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-26 20:40:04,564 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-26 20:40:04,564 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-26 20:40:04,564 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-26 20:40:04,564 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-26 20:40:04,564 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-26 20:40:04,564 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-26 20:40:04,564 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-26 20:40:04,564 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-26 20:40:04,564 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-26 20:40:04,565 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-26 20:40:04,565 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-26 20:40:04,565 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-26 20:40:04,565 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-26 20:40:04,565 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,565 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,565 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,565 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,566 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,566 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-26 20:40:04,566 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-26 20:40:04,566 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-26 20:40:04,567 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-26 20:40:04,567 INFO L270 CegarLoopResult]: At program point L501(line 501) the Hoare annotation is: (let ((.cse0 (not (= ~a21~0 1)))) (and (or (not (= 8 |old(~a17~0)|)) .cse0) (or (not (= 10 |old(~a28~0)|)) (not (= |old(~a19~0)| 1))) (or (not (= 7 |old(~a17~0)|)) (not (= 0 |old(~a19~0)|)) (not (= |old(~a11~0)| |old(~a19~0)|)) (not (= 9 |old(~a28~0)|)) .cse0 (not (= |old(~a11~0)| |old(~a25~0)|))) (or (not (= |old(~a25~0)| 1)) .cse0) (or (not (<= |old(~a11~0)| 1)) (not (<= |old(~a28~0)| 10)) (not (<= 7 |old(~a17~0)|)) (not (<= |old(~a17~0)| 7)) (not (<= |old(~a25~0)| 0)) (not (<= 10 |old(~a28~0)|)) .cse0 (not (<= 1 |old(~a11~0)|)) (not (<= |old(~a19~0)| 0))))) [2020-10-26 20:40:04,568 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-26 20:40:04,568 INFO L274 CegarLoopResult]: For program point L501-1(line 501) no Hoare annotation was computed. [2020-10-26 20:40:04,568 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-26 20:40:04,568 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-26 20:40:04,568 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-26 20:40:04,568 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-26 20:40:04,568 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-26 20:40:04,569 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-26 20:40:04,569 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-26 20:40:04,569 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,569 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,571 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,571 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,571 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-26 20:40:04,571 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,571 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-26 20:40:04,571 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-26 20:40:04,571 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-26 20:40:04,571 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-26 20:40:04,572 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-26 20:40:04,572 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-26 20:40:04,572 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-26 20:40:04,572 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-26 20:40:04,572 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-26 20:40:04,572 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-26 20:40:04,572 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-26 20:40:04,572 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-26 20:40:04,572 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-26 20:40:04,572 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-26 20:40:04,574 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-26 20:40:04,574 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,574 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,574 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,574 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,574 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,575 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-26 20:40:04,575 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-26 20:40:04,575 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-26 20:40:04,575 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-26 20:40:04,576 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-26 20:40:04,576 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-26 20:40:04,576 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-26 20:40:04,576 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-26 20:40:04,576 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-26 20:40:04,576 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-26 20:40:04,576 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-26 20:40:04,576 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,576 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,576 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,577 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,577 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,577 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-26 20:40:04,577 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-26 20:40:04,577 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-26 20:40:04,577 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-26 20:40:04,577 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-26 20:40:04,577 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-26 20:40:04,577 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-26 20:40:04,577 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-26 20:40:04,578 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-26 20:40:04,578 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-26 20:40:04,578 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-26 20:40:04,578 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-26 20:40:04,578 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-26 20:40:04,578 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,578 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,578 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,578 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,578 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,578 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-26 20:40:04,579 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-26 20:40:04,579 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-26 20:40:04,579 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-26 20:40:04,579 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-26 20:40:04,579 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-26 20:40:04,580 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-26 20:40:04,580 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-26 20:40:04,580 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-26 20:40:04,580 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,581 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,581 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-26 20:40:04,581 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-26 20:40:04,581 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-26 20:40:04,581 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-26 20:40:04,581 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-26 20:40:04,581 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-26 20:40:04,581 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-26 20:40:04,581 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,581 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,582 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,582 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,582 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-26 20:40:04,582 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,583 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-26 20:40:04,583 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,583 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-26 20:40:04,583 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-26 20:40:04,583 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-26 20:40:04,584 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-26 20:40:04,584 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-26 20:40:04,584 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-26 20:40:04,584 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-26 20:40:04,584 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-26 20:40:04,584 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-26 20:40:04,584 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-26 20:40:04,584 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-26 20:40:04,584 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-26 20:40:04,584 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-26 20:40:04,585 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-26 20:40:04,585 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,585 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,585 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,585 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,585 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,585 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,585 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-26 20:40:04,585 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-26 20:40:04,585 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-26 20:40:04,585 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-26 20:40:04,586 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-26 20:40:04,586 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-26 20:40:04,586 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-26 20:40:04,586 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-26 20:40:04,586 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-26 20:40:04,586 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-26 20:40:04,586 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-26 20:40:04,586 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,586 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,586 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,586 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,587 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,587 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,587 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-26 20:40:04,587 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-26 20:40:04,587 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-26 20:40:04,587 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-26 20:40:04,587 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-26 20:40:04,587 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-26 20:40:04,587 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-26 20:40:04,588 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 31 600) the Hoare annotation is: (let ((.cse0 (= ~a28~0 |old(~a28~0)|)) (.cse1 (= ~a17~0 |old(~a17~0)|)) (.cse2 (= ~a11~0 |old(~a11~0)|)) (.cse4 (not (= ~a21~0 1))) (.cse5 (= ~a25~0 |old(~a25~0)|)) (.cse3 (= ~a19~0 |old(~a19~0)|))) (and (or (not (= |old(~a25~0)| 1)) (and .cse0 .cse1 .cse2 (= ~a25~0 1) .cse3) .cse4) (or (and .cse0 .cse2 .cse5 (= ~a17~0 8) .cse3) (not (= 8 |old(~a17~0)|)) .cse4) (or (not (= 7 |old(~a17~0)|)) (and (= ~a25~0 ~a11~0) (= ~a19~0 0) .cse1 .cse5 (= ~a28~0 9)) (not (= 0 |old(~a19~0)|)) (not (= |old(~a11~0)| |old(~a19~0)|)) (not (= 9 |old(~a28~0)|)) .cse4 (not (= |old(~a11~0)| |old(~a25~0)|))) (or (and .cse1 .cse2 (= ~a19~0 1) .cse5 (= ~a28~0 10)) (not (= 10 |old(~a28~0)|)) (not (= |old(~a19~0)| 1))) (or (not (<= |old(~a11~0)| 1)) (not (<= |old(~a28~0)| 10)) (not (<= 7 |old(~a17~0)|)) (not (<= |old(~a17~0)| 7)) (not (<= |old(~a25~0)| 0)) (not (<= 10 |old(~a28~0)|)) .cse4 (not (<= 1 |old(~a11~0)|)) (and (<= 1 ~a11~0) (<= 7 ~a17~0) (<= 10 ~a28~0) .cse5 (<= ~a11~0 1) (<= ~a28~0 10) (<= ~a17~0 7) .cse3) (not (<= |old(~a19~0)| 0))))) [2020-10-26 20:40:04,588 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-26 20:40:04,588 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-26 20:40:04,588 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-26 20:40:04,588 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-26 20:40:04,588 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-26 20:40:04,588 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-26 20:40:04,588 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-26 20:40:04,588 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,589 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,589 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,589 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,589 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,589 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,589 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-26 20:40:04,589 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-26 20:40:04,589 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-26 20:40:04,589 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-26 20:40:04,589 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-26 20:40:04,590 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-26 20:40:04,590 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-26 20:40:04,590 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-26 20:40:04,590 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-26 20:40:04,590 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-26 20:40:04,590 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-26 20:40:04,590 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-26 20:40:04,590 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-26 20:40:04,590 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,591 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,591 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,591 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,591 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,591 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,591 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-26 20:40:04,591 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-26 20:40:04,591 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-26 20:40:04,591 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-26 20:40:04,591 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-26 20:40:04,591 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-26 20:40:04,592 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-26 20:40:04,592 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-26 20:40:04,592 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-26 20:40:04,592 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-26 20:40:04,592 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-26 20:40:04,592 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-26 20:40:04,592 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-26 20:40:04,592 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-26 20:40:04,592 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-26 20:40:04,592 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-26 20:40:04,592 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,593 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,593 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,593 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,593 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:40:04,593 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-26 20:40:04,593 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-26 20:40:04,593 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-26 20:40:04,593 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-26 20:40:04,593 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:40:04,593 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 1) (= ~a25~0 0) (= ~a21~0 1) (<= 7 ~a28~0) (<= 8 ~a17~0) (= ~a11~0 0) (<= ~a28~0 7) (<= ~a17~0 8)) [2020-10-26 20:40:04,594 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:40:04,594 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:40:04,594 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (or (and (= 7 ~a17~0) (= ~a11~0 0) (= ~a28~0 9) (= ~a25~0 ~a19~0) (= ~a11~0 ~a19~0)) (not (<= |old(~a28~0)| 7)) (not (= |old(~a19~0)| 1)) (not (= 0 |old(~a11~0)|)) (= ~a17~0 8) (and (<= 1 ~a11~0) (<= ~a19~0 0) (<= 7 ~a17~0) (<= 10 ~a28~0) (<= ~a11~0 1) (<= ~a17~0 7) (<= ~a25~0 0) (<= ~a28~0 10)) (not (= 8 |old(~a17~0)|)) (not (<= 7 |old(~a28~0)|)) (= ~a25~0 1) (not (= ~a21~0 1)) (and (= ~a19~0 1) (= ~a28~0 10)) (not (= |old(~a11~0)| |old(~a25~0)|))) [2020-10-26 20:40:04,594 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 602 619) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (= |old(~a19~0)| 1)) (not (= 8 |old(~a17~0)|)) (and (= ~a25~0 ~a11~0) (= ~a19~0 1) (<= 7 ~a28~0) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8) (<= ~a28~0 7)) (not (= 0 |old(~a25~0)|)) (not (<= 7 |old(~a28~0)|)) (not (= ~a21~0 1)) (not (= |old(~a11~0)| |old(~a25~0)|))) [2020-10-26 20:40:04,594 INFO L274 CegarLoopResult]: For program point L608-3(lines 602 619) no Hoare annotation was computed. [2020-10-26 20:40:04,594 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 602 619) no Hoare annotation was computed. [2020-10-26 20:40:04,595 INFO L270 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (or (and (= 7 ~a17~0) (= ~a11~0 0) (= ~a28~0 9) (= ~a25~0 ~a19~0) (= ~a11~0 ~a19~0)) (not (<= |old(~a28~0)| 7)) (not (= |old(~a19~0)| 1)) (not (= 0 |old(~a11~0)|)) (= ~a17~0 8) (and (<= 1 ~a11~0) (<= ~a19~0 0) (<= 7 ~a17~0) (<= 10 ~a28~0) (<= ~a11~0 1) (<= ~a17~0 7) (<= ~a25~0 0) (<= ~a28~0 10)) (not (= 8 |old(~a17~0)|)) (not (<= 7 |old(~a28~0)|)) (= ~a25~0 1) (not (= ~a21~0 1)) (and (= ~a19~0 1) (= ~a28~0 10)) (not (= |old(~a11~0)| |old(~a25~0)|))) [2020-10-26 20:40:04,595 INFO L274 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-10-26 20:40:04,595 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-26 20:40:04,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:40:04 BoogieIcfgContainer [2020-10-26 20:40:04,623 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:40:04,625 INFO L168 Benchmark]: Toolchain (without parser) took 62846.83 ms. Allocated memory was 163.6 MB in the beginning and 857.7 MB in the end (delta: 694.2 MB). Free memory was 136.9 MB in the beginning and 792.3 MB in the end (delta: -655.3 MB). Peak memory consumption was 517.3 MB. Max. memory is 8.0 GB. [2020-10-26 20:40:04,626 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 125.8 MB. Free memory is still 85.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:40:04,629 INFO L168 Benchmark]: CACSL2BoogieTranslator took 811.87 ms. Allocated memory is still 163.6 MB. Free memory was 136.4 MB in the beginning and 110.7 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:40:04,632 INFO L168 Benchmark]: Boogie Preprocessor took 145.54 ms. Allocated memory is still 163.6 MB. Free memory was 110.7 MB in the beginning and 106.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:40:04,635 INFO L168 Benchmark]: RCFGBuilder took 1428.59 ms. Allocated memory is still 163.6 MB. Free memory was 105.7 MB in the beginning and 57.7 MB in the end (delta: 48.1 MB). Peak memory consumption was 47.6 MB. Max. memory is 8.0 GB. [2020-10-26 20:40:04,639 INFO L168 Benchmark]: TraceAbstraction took 60442.92 ms. Allocated memory was 163.6 MB in the beginning and 857.7 MB in the end (delta: 694.2 MB). Free memory was 57.1 MB in the beginning and 792.3 MB in the end (delta: -735.1 MB). Peak memory consumption was 437.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:40:04,644 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 125.8 MB. Free memory is still 85.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 811.87 ms. Allocated memory is still 163.6 MB. Free memory was 136.4 MB in the beginning and 110.7 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 145.54 ms. Allocated memory is still 163.6 MB. Free memory was 110.7 MB in the beginning and 106.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1428.59 ms. Allocated memory is still 163.6 MB. Free memory was 105.7 MB in the beginning and 57.7 MB in the end (delta: 48.1 MB). Peak memory consumption was 47.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 60442.92 ms. Allocated memory was 163.6 MB in the beginning and 857.7 MB in the end (delta: 694.2 MB). Free memory was 57.1 MB in the beginning and 792.3 MB in the end (delta: -735.1 MB). Peak memory consumption was 437.2 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: ((((((((((((((7 == a17 && a11 == 0) && a28 == 9) && a25 == a19) && a11 == a19) || !(\old(a28) <= 7)) || !(\old(a19) == 1)) || !(0 == \old(a11))) || a17 == 8) || (((((((1 <= a11 && a19 <= 0) && 7 <= a17) && 10 <= a28) && a11 <= 1) && a17 <= 7) && a25 <= 0) && a28 <= 10)) || !(8 == \old(a17))) || !(7 <= \old(a28))) || a25 == 1) || !(a21 == 1)) || (a19 == 1 && a28 == 10)) || !(\old(a11) == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 57.1s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 19.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 364 SDtfs, 4583 SDslu, 590 SDs, 0 SdLazy, 8758 SolverSat, 1437 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 183 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2497occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 433 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 204 PreInvPairs, 248 NumberOfFragments, 592 HoareAnnotationTreeSize, 204 FomulaSimplifications, 506414 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 22362 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 35.5s InterpolantComputationTime, 1749 NumberOfCodeBlocks, 1749 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1739 ConstructedInterpolants, 0 QuantifiedInterpolants, 1940594 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 746/911 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...