/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/Problem10_label04.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 22:29:38,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 22:29:38,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 22:29:38,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 22:29:38,222 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 22:29:38,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 22:29:38,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 22:29:38,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 22:29:38,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 22:29:38,248 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 22:29:38,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 22:29:38,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 22:29:38,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 22:29:38,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 22:29:38,256 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 22:29:38,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 22:29:38,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 22:29:38,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 22:29:38,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 22:29:38,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 22:29:38,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 22:29:38,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 22:29:38,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 22:29:38,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 22:29:38,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 22:29:38,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 22:29:38,303 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 22:29:38,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 22:29:38,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 22:29:38,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 22:29:38,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 22:29:38,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 22:29:38,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 22:29:38,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 22:29:38,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 22:29:38,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 22:29:38,314 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 22:29:38,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 22:29:38,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 22:29:38,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 22:29:38,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 22:29:38,325 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 22:29:38,389 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 22:29:38,389 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 22:29:38,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 22:29:38,395 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 22:29:38,395 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 22:29:38,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 22:29:38,396 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 22:29:38,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 22:29:38,396 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 22:29:38,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 22:29:38,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 22:29:38,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 22:29:38,398 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 22:29:38,398 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 22:29:38,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 22:29:38,399 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 22:29:38,399 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 22:29:38,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 22:29:38,400 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 22:29:38,400 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 22:29:38,400 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 22:29:38,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 22:29:38,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 22:29:38,401 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 22:29:38,401 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 22:29:38,401 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 22:29:38,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 22:29:38,401 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 22:29:38,402 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 22:29:38,402 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 22:29:38,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 22:29:38,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 22:29:38,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 22:29:38,902 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 22:29:38,902 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 22:29:38,903 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label04.c [2020-10-26 22:29:38,975 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/870c91e72/0bf6bf226941467193532c727a85fdfd/FLAG9dc3ad090 [2020-10-26 22:29:39,755 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 22:29:39,756 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label04.c [2020-10-26 22:29:39,778 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/870c91e72/0bf6bf226941467193532c727a85fdfd/FLAG9dc3ad090 [2020-10-26 22:29:40,016 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/870c91e72/0bf6bf226941467193532c727a85fdfd [2020-10-26 22:29:40,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 22:29:40,027 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 22:29:40,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 22:29:40,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 22:29:40,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 22:29:40,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:29:40" (1/1) ... [2020-10-26 22:29:40,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4164d8be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:29:40, skipping insertion in model container [2020-10-26 22:29:40,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:29:40" (1/1) ... [2020-10-26 22:29:40,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 22:29:40,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 22:29:40,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:29:40,707 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 22:29:40,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:29:40,936 INFO L208 MainTranslator]: Completed translation [2020-10-26 22:29:40,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:29:40 WrapperNode [2020-10-26 22:29:40,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 22:29:40,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 22:29:40,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 22:29:40,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 22:29:40,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:29:40" (1/1) ... [2020-10-26 22:29:40,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:29:40" (1/1) ... [2020-10-26 22:29:40,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:29:40" (1/1) ... [2020-10-26 22:29:40,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:29:40" (1/1) ... [2020-10-26 22:29:41,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:29:40" (1/1) ... [2020-10-26 22:29:41,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:29:40" (1/1) ... [2020-10-26 22:29:41,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:29:40" (1/1) ... [2020-10-26 22:29:41,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 22:29:41,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 22:29:41,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 22:29:41,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 22:29:41,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:29:40" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 22:29:41,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 22:29:41,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 22:29:41,200 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 22:29:41,200 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 22:29:41,201 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 22:29:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 22:29:41,202 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 22:29:41,202 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 22:29:41,202 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 22:29:41,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 22:29:41,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 22:29:41,203 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 22:29:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 22:29:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 22:29:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 22:29:41,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 22:29:41,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 22:29:41,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 22:29:41,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 22:29:42,816 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 22:29:42,816 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 22:29:42,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:29:42 BoogieIcfgContainer [2020-10-26 22:29:42,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 22:29:42,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 22:29:42,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 22:29:42,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 22:29:42,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:29:40" (1/3) ... [2020-10-26 22:29:42,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1609f157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:29:42, skipping insertion in model container [2020-10-26 22:29:42,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:29:40" (2/3) ... [2020-10-26 22:29:42,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1609f157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:29:42, skipping insertion in model container [2020-10-26 22:29:42,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:29:42" (3/3) ... [2020-10-26 22:29:42,829 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label04.c [2020-10-26 22:29:42,842 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 22:29:42,848 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 22:29:42,863 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 22:29:42,898 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 22:29:42,898 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 22:29:42,898 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 22:29:42,898 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 22:29:42,899 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 22:29:42,899 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 22:29:42,899 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 22:29:42,899 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 22:29:42,923 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-26 22:29:42,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-26 22:29:42,935 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:29:42,936 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] [2020-10-26 22:29:42,937 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:29:42,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:29:42,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1596012158, now seen corresponding path program 1 times [2020-10-26 22:29:42,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:29:42,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821322306] [2020-10-26 22:29:42,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:29:43,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:43,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:43,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:43,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:29:43,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:29:43,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 695 [2020-10-26 22:29:43,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:43,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:29:43,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:29:43,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:29:43,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 22:29:44,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:29:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:44,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:44,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:44,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:29:44,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:29:44,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 22:29:44,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:44,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:29:44,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:29:44,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:29:44,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:44,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:29:44,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821322306] [2020-10-26 22:29:44,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:29:44,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 22:29:44,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837718330] [2020-10-26 22:29:44,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 22:29:44,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:29:44,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 22:29:44,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 22:29:44,144 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-26 22:29:45,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:29:45,999 INFO L93 Difference]: Finished difference Result 586 states and 1012 transitions. [2020-10-26 22:29:46,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:29:46,008 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 73 [2020-10-26 22:29:46,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:29:46,038 INFO L225 Difference]: With dead ends: 586 [2020-10-26 22:29:46,038 INFO L226 Difference]: Without dead ends: 303 [2020-10-26 22:29:46,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:29:46,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-26 22:29:46,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-10-26 22:29:46,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-26 22:29:46,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 396 transitions. [2020-10-26 22:29:46,205 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 396 transitions. Word has length 73 [2020-10-26 22:29:46,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:29:46,207 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 396 transitions. [2020-10-26 22:29:46,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 22:29:46,209 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 396 transitions. [2020-10-26 22:29:46,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-26 22:29:46,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:29:46,225 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:29:46,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 22:29:46,226 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:29:46,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:29:46,227 INFO L82 PathProgramCache]: Analyzing trace with hash -782368033, now seen corresponding path program 1 times [2020-10-26 22:29:46,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:29:46,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [888505689] [2020-10-26 22:29:46,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:29:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:46,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:46,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:47,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:47,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-26 22:29:47,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:29:47,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1253 [2020-10-26 22:29:47,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:47,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 22:29:47,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:29:47,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-26 22:29:47,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:29:47,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:29:47,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:47,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:47,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:47,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:29:47,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:29:47,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 22:29:47,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:47,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:29:47,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:29:47,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:29:47,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:47,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:29:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:47,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:47,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:47,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:47,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:29:47,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:29:47,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-26 22:29:47,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:47,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:29:47,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:29:47,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-26 22:29:47,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:48,144 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 61 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 22:29:48,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [888505689] [2020-10-26 22:29:48,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:29:48,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:29:48,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730096399] [2020-10-26 22:29:48,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 22:29:48,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:29:48,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 22:29:48,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:29:48,156 INFO L87 Difference]: Start difference. First operand 299 states and 396 transitions. Second operand 6 states. [2020-10-26 22:29:49,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:29:49,914 INFO L93 Difference]: Finished difference Result 890 states and 1204 transitions. [2020-10-26 22:29:49,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 22:29:49,919 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2020-10-26 22:29:49,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:29:49,925 INFO L225 Difference]: With dead ends: 890 [2020-10-26 22:29:49,925 INFO L226 Difference]: Without dead ends: 597 [2020-10-26 22:29:49,927 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:29:49,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2020-10-26 22:29:49,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 591. [2020-10-26 22:29:49,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-10-26 22:29:49,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 760 transitions. [2020-10-26 22:29:49,966 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 760 transitions. Word has length 143 [2020-10-26 22:29:49,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:29:49,968 INFO L481 AbstractCegarLoop]: Abstraction has 591 states and 760 transitions. [2020-10-26 22:29:49,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 22:29:49,969 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 760 transitions. [2020-10-26 22:29:49,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-26 22:29:49,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:29:49,974 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:29:49,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 22:29:49,975 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:29:49,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:29:49,975 INFO L82 PathProgramCache]: Analyzing trace with hash 597897789, now seen corresponding path program 1 times [2020-10-26 22:29:49,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:29:49,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1379705039] [2020-10-26 22:29:49,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:29:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:50,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:50,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:50,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:50,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-26 22:29:50,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:29:50,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 484 [2020-10-26 22:29:50,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:50,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:29:50,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-26 22:29:50,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-26 22:29:50,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:50,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:29:50,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:50,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:50,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:50,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:29:50,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:29:50,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 22:29:50,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:50,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:29:50,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:29:50,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:29:50,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:50,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:29:50,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:50,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:50,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:50,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 22:29:50,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:29:50,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-26 22:29:50,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:50,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:29:50,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:29:50,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:29:50,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:50,957 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 64 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:29:50,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1379705039] [2020-10-26 22:29:50,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:29:50,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:29:50,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833240657] [2020-10-26 22:29:50,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:29:50,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:29:50,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:29:50,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:29:50,964 INFO L87 Difference]: Start difference. First operand 591 states and 760 transitions. Second operand 5 states. [2020-10-26 22:29:52,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:29:52,195 INFO L93 Difference]: Finished difference Result 1205 states and 1557 transitions. [2020-10-26 22:29:52,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:29:52,197 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2020-10-26 22:29:52,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:29:52,204 INFO L225 Difference]: With dead ends: 1205 [2020-10-26 22:29:52,205 INFO L226 Difference]: Without dead ends: 597 [2020-10-26 22:29:52,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:29:52,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2020-10-26 22:29:52,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 591. [2020-10-26 22:29:52,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-10-26 22:29:52,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 755 transitions. [2020-10-26 22:29:52,267 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 755 transitions. Word has length 152 [2020-10-26 22:29:52,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:29:52,267 INFO L481 AbstractCegarLoop]: Abstraction has 591 states and 755 transitions. [2020-10-26 22:29:52,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:29:52,268 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 755 transitions. [2020-10-26 22:29:52,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-26 22:29:52,274 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:29:52,274 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:29:52,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 22:29:52,274 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:29:52,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:29:52,275 INFO L82 PathProgramCache]: Analyzing trace with hash -392299008, now seen corresponding path program 1 times [2020-10-26 22:29:52,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:29:52,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669032613] [2020-10-26 22:29:52,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:29:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:52,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:52,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:53,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:53,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:53,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-10-26 22:29:53,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:29:53,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1299 [2020-10-26 22:29:53,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:53,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:29:53,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:29:53,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-26 22:29:53,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 22:29:53,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:29:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:53,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:53,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:53,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:29:53,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:29:53,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 22:29:53,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:53,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:29:53,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:29:53,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:29:53,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:53,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:29:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:53,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:53,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:53,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:29:53,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:29:53,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-26 22:29:53,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:53,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:29:53,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:29:53,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:29:53,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:53,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:29:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:53,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:54,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:54,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:29:54,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 22:29:54,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:29:54,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-26 22:29:54,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:29:54,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:29:54,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:29:54,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-26 22:29:54,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:29:54,114 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 130 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 22:29:54,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669032613] [2020-10-26 22:29:54,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:29:54,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:29:54,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125527709] [2020-10-26 22:29:54,116 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:29:54,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:29:54,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:29:54,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:29:54,117 INFO L87 Difference]: Start difference. First operand 591 states and 755 transitions. Second operand 7 states. [2020-10-26 22:29:56,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:29:56,515 INFO L93 Difference]: Finished difference Result 1512 states and 2054 transitions. [2020-10-26 22:29:56,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:29:56,517 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 215 [2020-10-26 22:29:56,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:29:56,527 INFO L225 Difference]: With dead ends: 1512 [2020-10-26 22:29:56,527 INFO L226 Difference]: Without dead ends: 927 [2020-10-26 22:29:56,530 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:29:56,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2020-10-26 22:29:56,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 750. [2020-10-26 22:29:56,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 750 states. [2020-10-26 22:29:56,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 937 transitions. [2020-10-26 22:29:56,583 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 937 transitions. Word has length 215 [2020-10-26 22:29:56,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:29:56,584 INFO L481 AbstractCegarLoop]: Abstraction has 750 states and 937 transitions. [2020-10-26 22:29:56,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:29:56,585 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 937 transitions. [2020-10-26 22:29:56,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-10-26 22:29:56,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:29:56,591 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 22:29:56,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 22:29:56,591 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:29:56,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:29:56,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1500342170, now seen corresponding path program 1 times [2020-10-26 22:29:56,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:29:56,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [819453635] [2020-10-26 22:29:56,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:29:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:29:56,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:56,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:57,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:29:58,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:00,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:00,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-10-26 22:30:00,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:30:00,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4315 [2020-10-26 22:30:00,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:00,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:30:00,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:30:00,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:30:00,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:01,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:30:01,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:01,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:01,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:01,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:30:01,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:01,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 22:30:01,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:01,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:30:01,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:01,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:30:01,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:01,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:30:01,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:01,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:01,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:01,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:30:01,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:01,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-26 22:30:01,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:01,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:01,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:30:01,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 22:30:01,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:01,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-26 22:30:01,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:01,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:01,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:01,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 22:30:01,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:01,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-26 22:30:01,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:01,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:01,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-26 22:30:01,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:01,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:01,520 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 130 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 22:30:01,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [819453635] [2020-10-26 22:30:01,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:30:01,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:30:01,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829295720] [2020-10-26 22:30:01,522 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:30:01,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:30:01,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:30:01,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:30:01,523 INFO L87 Difference]: Start difference. First operand 750 states and 937 transitions. Second operand 7 states. [2020-10-26 22:30:03,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:30:03,415 INFO L93 Difference]: Finished difference Result 1806 states and 2231 transitions. [2020-10-26 22:30:03,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:30:03,418 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 222 [2020-10-26 22:30:03,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:30:03,429 INFO L225 Difference]: With dead ends: 1806 [2020-10-26 22:30:03,429 INFO L226 Difference]: Without dead ends: 1062 [2020-10-26 22:30:03,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:30:03,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2020-10-26 22:30:03,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1048. [2020-10-26 22:30:03,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1048 states. [2020-10-26 22:30:03,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1260 transitions. [2020-10-26 22:30:03,483 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1260 transitions. Word has length 222 [2020-10-26 22:30:03,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:30:03,484 INFO L481 AbstractCegarLoop]: Abstraction has 1048 states and 1260 transitions. [2020-10-26 22:30:03,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:30:03,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1260 transitions. [2020-10-26 22:30:03,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-10-26 22:30:03,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:30:03,490 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 22:30:03,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 22:30:03,490 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:30:03,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:30:03,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1634153690, now seen corresponding path program 1 times [2020-10-26 22:30:03,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:30:03,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2050491662] [2020-10-26 22:30:03,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:30:03,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:03,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:03,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:04,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:04,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-26 22:30:04,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:30:04,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1121 [2020-10-26 22:30:04,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:04,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:30:04,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:30:04,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-26 22:30:04,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:04,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:30:04,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:04,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:04,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:04,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:30:04,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:04,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 22:30:04,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:04,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:04,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:04,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:04,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:04,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:30:04,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:04,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:05,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:05,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:30:05,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:05,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-26 22:30:05,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:05,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:30:05,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:05,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:30:05,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:05,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:30:05,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:05,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:05,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:05,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 22:30:05,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:05,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-26 22:30:05,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:05,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:05,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:30:05,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-26 22:30:05,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:30:05,308 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 132 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 22:30:05,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2050491662] [2020-10-26 22:30:05,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:30:05,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 22:30:05,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174586872] [2020-10-26 22:30:05,311 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 22:30:05,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:30:05,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 22:30:05,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:30:05,312 INFO L87 Difference]: Start difference. First operand 1048 states and 1260 transitions. Second operand 6 states. [2020-10-26 22:30:07,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:30:07,263 INFO L93 Difference]: Finished difference Result 2545 states and 3173 transitions. [2020-10-26 22:30:07,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 22:30:07,265 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 260 [2020-10-26 22:30:07,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:30:07,277 INFO L225 Difference]: With dead ends: 2545 [2020-10-26 22:30:07,278 INFO L226 Difference]: Without dead ends: 1646 [2020-10-26 22:30:07,284 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:30:07,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2020-10-26 22:30:07,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1642. [2020-10-26 22:30:07,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1642 states. [2020-10-26 22:30:07,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 1958 transitions. [2020-10-26 22:30:07,354 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 1958 transitions. Word has length 260 [2020-10-26 22:30:07,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:30:07,355 INFO L481 AbstractCegarLoop]: Abstraction has 1642 states and 1958 transitions. [2020-10-26 22:30:07,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 22:30:07,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 1958 transitions. [2020-10-26 22:30:07,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-10-26 22:30:07,361 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:30:07,362 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:30:07,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 22:30:07,362 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:30:07,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:30:07,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1630704954, now seen corresponding path program 1 times [2020-10-26 22:30:07,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:30:07,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [699703852] [2020-10-26 22:30:07,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:30:07,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:07,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:07,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:08,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:09,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:09,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 284 [2020-10-26 22:30:09,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:30:09,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1873 [2020-10-26 22:30:09,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:09,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:09,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:30:09,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:30:09,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:09,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:30:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:09,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:09,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:09,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:30:09,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:09,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:30:09,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:09,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:09,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:09,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:09,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:09,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:30:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:09,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:09,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:09,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:30:09,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:09,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-26 22:30:09,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:09,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:30:09,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:09,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:30:09,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:09,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:30:09,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:09,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:09,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:09,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:30:09,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:09,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-26 22:30:09,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:09,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:09,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:30:09,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:30:09,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:09,962 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 209 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:30:09,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [699703852] [2020-10-26 22:30:09,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:30:09,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:30:09,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355540668] [2020-10-26 22:30:09,965 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:30:09,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:30:09,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:30:09,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:30:09,967 INFO L87 Difference]: Start difference. First operand 1642 states and 1958 transitions. Second operand 7 states. [2020-10-26 22:30:12,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:30:12,173 INFO L93 Difference]: Finished difference Result 3741 states and 4660 transitions. [2020-10-26 22:30:12,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:30:12,176 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 270 [2020-10-26 22:30:12,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:30:12,191 INFO L225 Difference]: With dead ends: 3741 [2020-10-26 22:30:12,191 INFO L226 Difference]: Without dead ends: 2248 [2020-10-26 22:30:12,198 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 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 22:30:12,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2248 states. [2020-10-26 22:30:12,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2248 to 2236. [2020-10-26 22:30:12,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2236 states. [2020-10-26 22:30:12,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 2692 transitions. [2020-10-26 22:30:12,288 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 2692 transitions. Word has length 270 [2020-10-26 22:30:12,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:30:12,288 INFO L481 AbstractCegarLoop]: Abstraction has 2236 states and 2692 transitions. [2020-10-26 22:30:12,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:30:12,289 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 2692 transitions. [2020-10-26 22:30:12,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-10-26 22:30:12,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:30:12,296 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:30:12,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 22:30:12,296 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:30:12,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:30:12,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1670676710, now seen corresponding path program 1 times [2020-10-26 22:30:12,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:30:12,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19027357] [2020-10-26 22:30:12,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:30:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:12,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:12,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:12,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-26 22:30:12,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:12,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-10-26 22:30:12,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:12,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:12,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-26 22:30:12,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-26 22:30:12,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:12,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:30:12,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:12,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:12,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:12,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:30:12,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:12,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:30:12,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:12,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:12,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:12,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:12,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:12,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:30:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:12,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:12,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:12,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:30:12,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:12,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-26 22:30:12,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:12,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:12,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:12,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:12,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:12,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:30:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:13,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:13,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:13,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-26 22:30:13,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:13,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-26 22:30:13,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:13,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:30:13,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:13,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-26 22:30:13,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:13,195 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 131 proven. 2 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-10-26 22:30:13,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19027357] [2020-10-26 22:30:13,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:30:13,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:30:13,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085853350] [2020-10-26 22:30:13,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:30:13,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:30:13,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:30:13,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:30:13,197 INFO L87 Difference]: Start difference. First operand 2236 states and 2692 transitions. Second operand 5 states. [2020-10-26 22:30:14,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:30:14,663 INFO L93 Difference]: Finished difference Result 4756 states and 5767 transitions. [2020-10-26 22:30:14,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:30:14,664 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 273 [2020-10-26 22:30:14,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:30:14,679 INFO L225 Difference]: With dead ends: 4756 [2020-10-26 22:30:14,680 INFO L226 Difference]: Without dead ends: 2669 [2020-10-26 22:30:14,686 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:30:14,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2669 states. [2020-10-26 22:30:14,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2669 to 2667. [2020-10-26 22:30:14,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2667 states. [2020-10-26 22:30:14,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 3166 transitions. [2020-10-26 22:30:14,773 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 3166 transitions. Word has length 273 [2020-10-26 22:30:14,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:30:14,774 INFO L481 AbstractCegarLoop]: Abstraction has 2667 states and 3166 transitions. [2020-10-26 22:30:14,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:30:14,774 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 3166 transitions. [2020-10-26 22:30:14,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-10-26 22:30:14,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:30:14,783 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:30:14,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 22:30:14,783 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:30:14,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:30:14,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1985147050, now seen corresponding path program 1 times [2020-10-26 22:30:14,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:30:14,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1934267953] [2020-10-26 22:30:14,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:30:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:14,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:14,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:15,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:18,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:18,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 343 [2020-10-26 22:30:18,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:30:18,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3983 [2020-10-26 22:30:18,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:18,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-26 22:30:18,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:30:18,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-26 22:30:18,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:19,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:30:19,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:19,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:19,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:19,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:30:19,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:19,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:30:19,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:19,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:19,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:19,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:19,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:19,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:30:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:19,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:19,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:19,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:30:19,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:19,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-26 22:30:19,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:19,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:30:19,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:19,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:30:19,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:19,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:30:19,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:19,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:19,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:19,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 22:30:19,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:19,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-10-26 22:30:19,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:19,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 22:30:19,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:30:19,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 22:30:19,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:19,891 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 227 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:30:19,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1934267953] [2020-10-26 22:30:19,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:30:19,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:30:19,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712661437] [2020-10-26 22:30:19,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:30:19,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:30:19,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:30:19,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:30:19,895 INFO L87 Difference]: Start difference. First operand 2667 states and 3166 transitions. Second operand 8 states. [2020-10-26 22:30:22,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:30:22,504 INFO L93 Difference]: Finished difference Result 6397 states and 7757 transitions. [2020-10-26 22:30:22,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:30:22,505 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 329 [2020-10-26 22:30:22,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:30:22,529 INFO L225 Difference]: With dead ends: 6397 [2020-10-26 22:30:22,530 INFO L226 Difference]: Without dead ends: 3859 [2020-10-26 22:30:22,538 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-26 22:30:22,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3859 states. [2020-10-26 22:30:22,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3859 to 3563. [2020-10-26 22:30:22,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3563 states. [2020-10-26 22:30:22,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3563 states to 3563 states and 4341 transitions. [2020-10-26 22:30:22,655 INFO L78 Accepts]: Start accepts. Automaton has 3563 states and 4341 transitions. Word has length 329 [2020-10-26 22:30:22,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:30:22,656 INFO L481 AbstractCegarLoop]: Abstraction has 3563 states and 4341 transitions. [2020-10-26 22:30:22,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:30:22,656 INFO L276 IsEmpty]: Start isEmpty. Operand 3563 states and 4341 transitions. [2020-10-26 22:30:22,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2020-10-26 22:30:22,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:30:22,669 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 22:30:22,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 22:30:22,670 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:30:22,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:30:22,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1122053173, now seen corresponding path program 1 times [2020-10-26 22:30:22,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:30:22,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1112955419] [2020-10-26 22:30:22,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:30:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:22,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:22,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:23,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:26,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:27,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:27,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 363 [2020-10-26 22:30:27,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:30:27,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-26 22:30:27,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:27,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:27,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:30:27,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-26 22:30:27,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:27,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:30:27,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:27,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:27,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:27,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:30:27,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:27,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:30:27,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:27,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:27,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:27,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:27,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:27,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:30:27,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:27,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:28,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:28,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:30:28,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:28,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-26 22:30:28,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:28,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:30:28,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:28,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:30:28,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:28,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:30:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:28,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:28,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:28,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:30:28,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:28,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-26 22:30:28,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:28,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:28,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:30:28,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 22:30:28,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:28,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-26 22:30:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:28,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:28,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:28,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:30:28,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:28,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 22:30:28,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:28,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:28,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:30:28,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:28,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:28,484 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 273 proven. 76 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-10-26 22:30:28,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1112955419] [2020-10-26 22:30:28,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:30:28,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:30:28,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740788015] [2020-10-26 22:30:28,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:30:28,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:30:28,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:30:28,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:30:28,489 INFO L87 Difference]: Start difference. First operand 3563 states and 4341 transitions. Second operand 7 states. [2020-10-26 22:30:30,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:30:30,752 INFO L93 Difference]: Finished difference Result 7283 states and 8881 transitions. [2020-10-26 22:30:30,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:30:30,753 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 347 [2020-10-26 22:30:30,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:30:30,776 INFO L225 Difference]: With dead ends: 7283 [2020-10-26 22:30:30,776 INFO L226 Difference]: Without dead ends: 3869 [2020-10-26 22:30:30,786 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:30:30,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3869 states. [2020-10-26 22:30:30,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3869 to 3855. [2020-10-26 22:30:30,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3855 states. [2020-10-26 22:30:30,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3855 states to 3855 states and 4642 transitions. [2020-10-26 22:30:30,913 INFO L78 Accepts]: Start accepts. Automaton has 3855 states and 4642 transitions. Word has length 347 [2020-10-26 22:30:30,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:30:30,914 INFO L481 AbstractCegarLoop]: Abstraction has 3855 states and 4642 transitions. [2020-10-26 22:30:30,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:30:30,914 INFO L276 IsEmpty]: Start isEmpty. Operand 3855 states and 4642 transitions. [2020-10-26 22:30:30,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2020-10-26 22:30:30,925 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:30:30,926 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 22:30:30,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 22:30:30,926 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:30:30,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:30:30,927 INFO L82 PathProgramCache]: Analyzing trace with hash 536802097, now seen corresponding path program 1 times [2020-10-26 22:30:30,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:30:30,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1666732487] [2020-10-26 22:30:30,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:30:30,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:31,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:31,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:31,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:33,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:33,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 382 [2020-10-26 22:30:33,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:30:33,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2295 [2020-10-26 22:30:33,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:33,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:33,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-10-26 22:30:33,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:30:33,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:33,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:30:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:33,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:33,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:33,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:30:33,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:33,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 22:30:33,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:33,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:33,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:33,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:33,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:33,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:30:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:33,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:33,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:33,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:30:33,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:33,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-26 22:30:33,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:33,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:33,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:33,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:33,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:33,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:30:33,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:33,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:33,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:33,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:30:33,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:33,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-26 22:30:33,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:33,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:30:33,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:33,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-26 22:30:33,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:33,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-26 22:30:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:33,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:33,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:33,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:30:33,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:33,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-26 22:30:33,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:33,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:33,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:30:33,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:30:33,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:33,926 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 353 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-26 22:30:33,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1666732487] [2020-10-26 22:30:33,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:30:33,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:30:33,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998210041] [2020-10-26 22:30:33,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:30:33,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:30:33,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:30:33,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:30:33,929 INFO L87 Difference]: Start difference. First operand 3855 states and 4642 transitions. Second operand 7 states. [2020-10-26 22:30:36,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:30:36,156 INFO L93 Difference]: Finished difference Result 7714 states and 9447 transitions. [2020-10-26 22:30:36,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:30:36,157 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 366 [2020-10-26 22:30:36,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:30:36,180 INFO L225 Difference]: With dead ends: 7714 [2020-10-26 22:30:36,180 INFO L226 Difference]: Without dead ends: 4008 [2020-10-26 22:30:36,190 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 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 22:30:36,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4008 states. [2020-10-26 22:30:36,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4008 to 4002. [2020-10-26 22:30:36,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4002 states. [2020-10-26 22:30:36,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4002 states to 4002 states and 4906 transitions. [2020-10-26 22:30:36,332 INFO L78 Accepts]: Start accepts. Automaton has 4002 states and 4906 transitions. Word has length 366 [2020-10-26 22:30:36,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:30:36,333 INFO L481 AbstractCegarLoop]: Abstraction has 4002 states and 4906 transitions. [2020-10-26 22:30:36,333 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:30:36,333 INFO L276 IsEmpty]: Start isEmpty. Operand 4002 states and 4906 transitions. [2020-10-26 22:30:36,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2020-10-26 22:30:36,348 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:30:36,348 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 22:30:36,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 22:30:36,349 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:30:36,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:30:36,349 INFO L82 PathProgramCache]: Analyzing trace with hash -797300411, now seen corresponding path program 1 times [2020-10-26 22:30:36,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:30:36,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1258560439] [2020-10-26 22:30:36,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:30:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:36,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:36,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:37,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:39,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:39,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 392 [2020-10-26 22:30:39,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:30:39,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3010 [2020-10-26 22:30:39,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:39,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:39,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 233 [2020-10-26 22:30:39,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:30:39,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:39,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:30:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:39,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:39,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:39,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:30:39,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:39,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:30:39,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:39,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:39,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:39,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:39,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:39,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:30:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:39,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:39,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:39,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:30:39,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:39,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 22:30:39,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:39,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:39,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:39,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:39,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:39,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:30:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:39,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:39,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:39,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:30:39,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:39,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-26 22:30:39,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:39,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:30:39,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:39,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-26 22:30:39,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:39,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-26 22:30:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:39,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:39,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:39,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:30:39,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:39,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-26 22:30:39,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:39,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:39,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:30:39,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:30:39,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:40,175 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 358 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-26 22:30:40,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1258560439] [2020-10-26 22:30:40,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:30:40,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:30:40,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484640291] [2020-10-26 22:30:40,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:30:40,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:30:40,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:30:40,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:30:40,178 INFO L87 Difference]: Start difference. First operand 4002 states and 4906 transitions. Second operand 7 states. [2020-10-26 22:30:42,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:30:42,653 INFO L93 Difference]: Finished difference Result 8882 states and 11087 transitions. [2020-10-26 22:30:42,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 22:30:42,654 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 376 [2020-10-26 22:30:42,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:30:42,683 INFO L225 Difference]: With dead ends: 8882 [2020-10-26 22:30:42,683 INFO L226 Difference]: Without dead ends: 5029 [2020-10-26 22:30:42,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:30:42,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5029 states. [2020-10-26 22:30:42,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5029 to 4590. [2020-10-26 22:30:42,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4590 states. [2020-10-26 22:30:42,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4590 states to 4590 states and 5634 transitions. [2020-10-26 22:30:42,832 INFO L78 Accepts]: Start accepts. Automaton has 4590 states and 5634 transitions. Word has length 376 [2020-10-26 22:30:42,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:30:42,833 INFO L481 AbstractCegarLoop]: Abstraction has 4590 states and 5634 transitions. [2020-10-26 22:30:42,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:30:42,833 INFO L276 IsEmpty]: Start isEmpty. Operand 4590 states and 5634 transitions. [2020-10-26 22:30:42,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2020-10-26 22:30:42,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:30:42,843 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:30:42,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 22:30:42,844 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:30:42,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:30:42,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1197383701, now seen corresponding path program 1 times [2020-10-26 22:30:42,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:30:42,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [807586453] [2020-10-26 22:30:42,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:30:42,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:42,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:43,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:43,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:44,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:45,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:45,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 393 [2020-10-26 22:30:45,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:30:45,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2634 [2020-10-26 22:30:45,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:45,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:45,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 194 [2020-10-26 22:30:45,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-26 22:30:45,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:45,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:30:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:45,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:45,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:45,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:30:45,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:45,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:30:45,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:45,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:45,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:45,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:45,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:45,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:30:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:45,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:45,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:45,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:30:45,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:45,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 22:30:45,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:45,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:45,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:45,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:45,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:45,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:30:45,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:45,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:45,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:45,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-26 22:30:45,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:45,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-26 22:30:45,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:45,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:30:45,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:45,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-26 22:30:45,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:45,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-26 22:30:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:46,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:46,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:46,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:46,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-26 22:30:46,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:30:46,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-10-26 22:30:46,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:46,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:46,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:30:46,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-26 22:30:46,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:46,693 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 376 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-26 22:30:46,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [807586453] [2020-10-26 22:30:46,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:30:46,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 22:30:46,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733808160] [2020-10-26 22:30:46,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 22:30:46,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:30:46,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 22:30:46,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:30:46,696 INFO L87 Difference]: Start difference. First operand 4590 states and 5634 transitions. Second operand 6 states. [2020-10-26 22:30:48,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:30:48,333 INFO L93 Difference]: Finished difference Result 9064 states and 11163 transitions. [2020-10-26 22:30:48,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 22:30:48,334 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 377 [2020-10-26 22:30:48,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:30:48,357 INFO L225 Difference]: With dead ends: 9064 [2020-10-26 22:30:48,358 INFO L226 Difference]: Without dead ends: 4604 [2020-10-26 22:30:48,370 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-26 22:30:48,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4604 states. [2020-10-26 22:30:48,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4604 to 4588. [2020-10-26 22:30:48,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4588 states. [2020-10-26 22:30:48,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4588 states to 4588 states and 5613 transitions. [2020-10-26 22:30:48,502 INFO L78 Accepts]: Start accepts. Automaton has 4588 states and 5613 transitions. Word has length 377 [2020-10-26 22:30:48,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:30:48,503 INFO L481 AbstractCegarLoop]: Abstraction has 4588 states and 5613 transitions. [2020-10-26 22:30:48,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 22:30:48,503 INFO L276 IsEmpty]: Start isEmpty. Operand 4588 states and 5613 transitions. [2020-10-26 22:30:48,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2020-10-26 22:30:48,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:30:48,513 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:30:48,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 22:30:48,514 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:30:48,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:30:48,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1945543461, now seen corresponding path program 1 times [2020-10-26 22:30:48,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:30:48,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1953032461] [2020-10-26 22:30:48,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:30:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:48,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:48,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:49,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:50,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:50,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 401 [2020-10-26 22:30:50,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:30:50,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1975 [2020-10-26 22:30:50,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:50,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:50,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 242 [2020-10-26 22:30:50,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:30:50,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:50,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:30:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:50,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:50,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:50,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:30:50,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:50,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:30:50,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:50,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:50,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:50,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:50,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:50,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:30:50,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:50,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:50,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:50,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:30:50,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:50,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-26 22:30:50,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:50,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:50,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:50,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:50,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:50,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:30:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:50,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:50,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:50,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-26 22:30:50,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:50,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-26 22:30:50,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:50,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:30:50,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:50,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:30:50,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:50,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-10-26 22:30:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:50,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:51,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:51,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:30:51,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:51,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-26 22:30:51,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:51,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:51,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:30:51,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:30:51,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:51,210 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 358 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2020-10-26 22:30:51,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1953032461] [2020-10-26 22:30:51,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:30:51,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:30:51,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328307337] [2020-10-26 22:30:51,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:30:51,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:30:51,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:30:51,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:30:51,212 INFO L87 Difference]: Start difference. First operand 4588 states and 5613 transitions. Second operand 7 states. [2020-10-26 22:30:55,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:30:55,604 INFO L93 Difference]: Finished difference Result 9754 states and 12024 transitions. [2020-10-26 22:30:55,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:30:55,611 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 385 [2020-10-26 22:30:55,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:30:55,632 INFO L225 Difference]: With dead ends: 9754 [2020-10-26 22:30:55,633 INFO L226 Difference]: Without dead ends: 5315 [2020-10-26 22:30:55,646 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:30:55,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5315 states. [2020-10-26 22:30:55,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5315 to 5164. [2020-10-26 22:30:55,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5164 states. [2020-10-26 22:30:55,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5164 states to 5164 states and 6352 transitions. [2020-10-26 22:30:55,782 INFO L78 Accepts]: Start accepts. Automaton has 5164 states and 6352 transitions. Word has length 385 [2020-10-26 22:30:55,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:30:55,783 INFO L481 AbstractCegarLoop]: Abstraction has 5164 states and 6352 transitions. [2020-10-26 22:30:55,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:30:55,783 INFO L276 IsEmpty]: Start isEmpty. Operand 5164 states and 6352 transitions. [2020-10-26 22:30:55,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2020-10-26 22:30:55,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:30:55,793 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:30:55,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 22:30:55,794 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:30:55,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:30:55,795 INFO L82 PathProgramCache]: Analyzing trace with hash 671401593, now seen corresponding path program 1 times [2020-10-26 22:30:55,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:30:55,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [506923465] [2020-10-26 22:30:55,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:30:55,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:55,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:55,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:57,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:57,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 403 [2020-10-26 22:30:57,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:30:57,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1242 [2020-10-26 22:30:57,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:57,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:30:57,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 328 [2020-10-26 22:30:57,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 22:30:57,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:57,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:30:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:57,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:57,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:57,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:30:57,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:57,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:30:57,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:57,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:57,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:57,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:57,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:57,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:30:57,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:57,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:57,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:57,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:30:57,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:57,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-26 22:30:57,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:57,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:57,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:57,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:57,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:57,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:30:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:57,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:57,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:57,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 22:30:57,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:57,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 22:30:57,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:57,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:30:57,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:57,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:30:57,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:57,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-26 22:30:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:57,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:57,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:30:57,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-26 22:30:57,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:30:57,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-26 22:30:57,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:30:57,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:30:57,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:30:57,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-26 22:30:57,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:30:57,676 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 198 proven. 3 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-10-26 22:30:57,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [506923465] [2020-10-26 22:30:57,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:30:57,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:30:57,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898030939] [2020-10-26 22:30:57,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:30:57,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:30:57,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:30:57,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:30:57,679 INFO L87 Difference]: Start difference. First operand 5164 states and 6352 transitions. Second operand 5 states. [2020-10-26 22:30:59,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:30:59,033 INFO L93 Difference]: Finished difference Result 10185 states and 12605 transitions. [2020-10-26 22:30:59,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:30:59,039 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 387 [2020-10-26 22:30:59,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:30:59,057 INFO L225 Difference]: With dead ends: 10185 [2020-10-26 22:30:59,057 INFO L226 Difference]: Without dead ends: 5162 [2020-10-26 22:30:59,071 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:30:59,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5162 states. [2020-10-26 22:30:59,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5162 to 5162. [2020-10-26 22:30:59,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5162 states. [2020-10-26 22:30:59,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5162 states to 5162 states and 6333 transitions. [2020-10-26 22:30:59,262 INFO L78 Accepts]: Start accepts. Automaton has 5162 states and 6333 transitions. Word has length 387 [2020-10-26 22:30:59,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:30:59,263 INFO L481 AbstractCegarLoop]: Abstraction has 5162 states and 6333 transitions. [2020-10-26 22:30:59,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:30:59,263 INFO L276 IsEmpty]: Start isEmpty. Operand 5162 states and 6333 transitions. [2020-10-26 22:30:59,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2020-10-26 22:30:59,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:30:59,277 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:30:59,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 22:30:59,278 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:30:59,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:30:59,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1344946707, now seen corresponding path program 1 times [2020-10-26 22:30:59,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:30:59,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1999044183] [2020-10-26 22:30:59,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:30:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:30:59,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:30:59,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:00,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:01,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:01,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 419 [2020-10-26 22:31:01,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:31:01,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2415 [2020-10-26 22:31:01,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:01,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:01,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-10-26 22:31:01,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-26 22:31:01,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:01,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:01,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:01,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:01,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:01,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:01,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:01,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:31:01,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:01,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:01,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:01,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:01,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:01,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:01,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:02,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:02,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:31:02,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:02,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-26 22:31:02,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:02,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:02,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:02,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:02,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:02,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:31:02,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:02,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:02,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:02,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:31:02,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:02,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-26 22:31:02,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:02,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:02,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:02,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-26 22:31:02,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:02,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-26 22:31:02,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:02,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:02,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:02,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-26 22:31:02,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:02,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-26 22:31:02,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:02,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:02,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:02,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-26 22:31:02,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:02,475 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 390 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-26 22:31:02,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1999044183] [2020-10-26 22:31:02,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:02,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:31:02,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379614794] [2020-10-26 22:31:02,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:31:02,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:02,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:31:02,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:02,478 INFO L87 Difference]: Start difference. First operand 5162 states and 6333 transitions. Second operand 7 states. [2020-10-26 22:31:04,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:04,835 INFO L93 Difference]: Finished difference Result 10473 states and 12861 transitions. [2020-10-26 22:31:04,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:31:04,838 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 403 [2020-10-26 22:31:04,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:04,856 INFO L225 Difference]: With dead ends: 10473 [2020-10-26 22:31:04,857 INFO L226 Difference]: Without dead ends: 5460 [2020-10-26 22:31:04,868 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:31:04,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5460 states. [2020-10-26 22:31:04,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5460 to 5166. [2020-10-26 22:31:04,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5166 states. [2020-10-26 22:31:04,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 6343 transitions. [2020-10-26 22:31:04,990 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 6343 transitions. Word has length 403 [2020-10-26 22:31:04,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:04,991 INFO L481 AbstractCegarLoop]: Abstraction has 5166 states and 6343 transitions. [2020-10-26 22:31:04,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:31:04,991 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 6343 transitions. [2020-10-26 22:31:05,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2020-10-26 22:31:05,004 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:05,004 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:05,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 22:31:05,005 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:05,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:05,008 INFO L82 PathProgramCache]: Analyzing trace with hash -401799041, now seen corresponding path program 1 times [2020-10-26 22:31:05,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:05,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1644385055] [2020-10-26 22:31:05,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:05,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:05,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:05,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:05,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:05,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 429 [2020-10-26 22:31:05,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:31:05,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 843 [2020-10-26 22:31:05,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:05,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:05,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-26 22:31:05,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-26 22:31:05,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:06,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:06,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:06,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:06,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:06,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:06,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:06,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 22:31:06,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:06,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:06,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:06,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:06,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:06,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:06,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:06,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:06,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:31:06,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:06,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 22:31:06,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:06,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:06,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:06,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:06,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:06,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:31:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:06,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:06,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:06,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:31:06,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:06,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 22:31:06,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:06,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:06,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:06,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:06,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:06,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-26 22:31:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:06,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:06,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:06,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-26 22:31:06,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:06,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-26 22:31:06,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:06,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:06,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:06,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-26 22:31:06,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 22:31:06,548 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 198 proven. 3 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-10-26 22:31:06,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1644385055] [2020-10-26 22:31:06,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:06,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:31:06,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584882900] [2020-10-26 22:31:06,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:31:06,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:06,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:31:06,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:31:06,552 INFO L87 Difference]: Start difference. First operand 5166 states and 6343 transitions. Second operand 5 states. [2020-10-26 22:31:08,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:08,324 INFO L93 Difference]: Finished difference Result 9893 states and 12208 transitions. [2020-10-26 22:31:08,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:31:08,324 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 413 [2020-10-26 22:31:08,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:08,351 INFO L225 Difference]: With dead ends: 9893 [2020-10-26 22:31:08,351 INFO L226 Difference]: Without dead ends: 4876 [2020-10-26 22:31:08,363 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:31:08,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4876 states. [2020-10-26 22:31:08,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4876 to 4727. [2020-10-26 22:31:08,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4727 states. [2020-10-26 22:31:08,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4727 states to 4727 states and 5654 transitions. [2020-10-26 22:31:08,477 INFO L78 Accepts]: Start accepts. Automaton has 4727 states and 5654 transitions. Word has length 413 [2020-10-26 22:31:08,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:08,478 INFO L481 AbstractCegarLoop]: Abstraction has 4727 states and 5654 transitions. [2020-10-26 22:31:08,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:31:08,478 INFO L276 IsEmpty]: Start isEmpty. Operand 4727 states and 5654 transitions. [2020-10-26 22:31:08,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2020-10-26 22:31:08,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:08,492 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:08,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-26 22:31:08,493 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:08,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:08,493 INFO L82 PathProgramCache]: Analyzing trace with hash 140833079, now seen corresponding path program 1 times [2020-10-26 22:31:08,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:08,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [842759120] [2020-10-26 22:31:08,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:08,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:08,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:09,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:09,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 429 [2020-10-26 22:31:09,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:31:09,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 705 [2020-10-26 22:31:09,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:09,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:09,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-26 22:31:09,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-26 22:31:09,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:09,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:09,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:09,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:09,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:09,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:09,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 22:31:09,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:09,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:09,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:09,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:09,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:09,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:09,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:09,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:09,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-26 22:31:09,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:09,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 22:31:09,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:09,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:09,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:09,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:09,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:09,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 22:31:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:09,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:09,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:09,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-26 22:31:09,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:09,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 22:31:09,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:09,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:09,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:09,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:09,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:09,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-26 22:31:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:09,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:09,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:09,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-26 22:31:09,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:09,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-26 22:31:09,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:09,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:09,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:09,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-26 22:31:09,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:09,820 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 198 proven. 3 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2020-10-26 22:31:09,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [842759120] [2020-10-26 22:31:09,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:09,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:31:09,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490166521] [2020-10-26 22:31:09,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:31:09,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:09,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:31:09,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:31:09,824 INFO L87 Difference]: Start difference. First operand 4727 states and 5654 transitions. Second operand 5 states. [2020-10-26 22:31:11,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:11,499 INFO L93 Difference]: Finished difference Result 9450 states and 11308 transitions. [2020-10-26 22:31:11,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:31:11,506 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 413 [2020-10-26 22:31:11,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:11,521 INFO L225 Difference]: With dead ends: 9450 [2020-10-26 22:31:11,521 INFO L226 Difference]: Without dead ends: 4578 [2020-10-26 22:31:11,531 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:31:11,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4578 states. [2020-10-26 22:31:11,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4578 to 4576. [2020-10-26 22:31:11,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4576 states. [2020-10-26 22:31:11,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4576 states to 4576 states and 5405 transitions. [2020-10-26 22:31:11,626 INFO L78 Accepts]: Start accepts. Automaton has 4576 states and 5405 transitions. Word has length 413 [2020-10-26 22:31:11,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:11,627 INFO L481 AbstractCegarLoop]: Abstraction has 4576 states and 5405 transitions. [2020-10-26 22:31:11,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:31:11,627 INFO L276 IsEmpty]: Start isEmpty. Operand 4576 states and 5405 transitions. [2020-10-26 22:31:11,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2020-10-26 22:31:11,639 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:11,639 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:11,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-26 22:31:11,640 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:11,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:11,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1161291591, now seen corresponding path program 1 times [2020-10-26 22:31:11,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:11,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [998500016] [2020-10-26 22:31:11,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:11,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:11,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:12,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:12,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:12,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 437 [2020-10-26 22:31:12,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:31:12,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1172 [2020-10-26 22:31:12,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:12,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:31:12,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 270 [2020-10-26 22:31:12,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-26 22:31:12,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:13,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:13,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:13,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:13,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:13,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:13,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:13,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:31:13,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:13,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:13,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:13,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:13,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:13,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:13,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:13,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:13,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:13,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-26 22:31:13,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:13,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 22:31:13,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:13,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:13,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:13,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:13,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:13,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 22:31:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:13,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:13,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:13,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-26 22:31:13,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:13,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-26 22:31:13,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:13,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:13,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:13,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-26 22:31:13,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:13,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-10-26 22:31:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:13,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:13,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:13,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:13,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:31:13,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:31:13,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-26 22:31:13,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:13,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:13,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:13,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:31:13,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:13,415 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 306 proven. 66 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-10-26 22:31:13,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [998500016] [2020-10-26 22:31:13,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:13,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 22:31:13,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307023589] [2020-10-26 22:31:13,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 22:31:13,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:13,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 22:31:13,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:31:13,417 INFO L87 Difference]: Start difference. First operand 4576 states and 5405 transitions. Second operand 6 states. [2020-10-26 22:31:15,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:15,271 INFO L93 Difference]: Finished difference Result 9010 states and 10664 transitions. [2020-10-26 22:31:15,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 22:31:15,272 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 421 [2020-10-26 22:31:15,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:15,273 INFO L225 Difference]: With dead ends: 9010 [2020-10-26 22:31:15,273 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 22:31:15,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:31:15,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 22:31:15,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 22:31:15,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 22:31:15,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 22:31:15,286 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 421 [2020-10-26 22:31:15,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:15,287 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 22:31:15,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 22:31:15,287 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 22:31:15,287 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 22:31:15,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-26 22:31:15,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 22:31:15,813 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 203 [2020-10-26 22:31:17,152 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 203 [2020-10-26 22:31:18,207 WARN L193 SmtUtils]: Spent 931.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 49 [2020-10-26 22:31:19,622 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 260 DAG size of output: 65 [2020-10-26 22:31:20,191 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 52 [2020-10-26 22:31:21,156 WARN L193 SmtUtils]: Spent 962.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 49 [2020-10-26 22:31:21,168 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 22:31:21,169 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 22:31:21,169 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 22:31:21,169 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 22:31:21,169 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:31:21,171 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-26 22:31:21,172 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:31:21,172 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-26 22:31:21,172 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-26 22:31:21,172 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-26 22:31:21,172 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-26 22:31:21,172 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-26 22:31:21,172 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-26 22:31:21,172 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-26 22:31:21,172 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-26 22:31:21,173 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-26 22:31:21,173 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-26 22:31:21,174 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-26 22:31:21,174 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-26 22:31:21,174 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-26 22:31:21,174 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,174 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,174 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,175 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,175 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,175 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,175 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-26 22:31:21,175 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-26 22:31:21,175 INFO L270 CegarLoopResult]: At program point L204(line 204) the Hoare annotation is: (let ((.cse0 (not (= 3 |old(~a10~0)|))) (.cse3 (not (= 0 |old(~a10~0)|))) (.cse2 (not (= 9 |old(~a19~0)|))) (.cse4 (not (= |old(~a10~0)| 1))) (.cse1 (not (<= |old(~a1~0)| 505272)))) (and (or .cse0 .cse1) (or .cse0 .cse2) (or .cse2 .cse3) (or .cse3 .cse1) (or .cse2 .cse4) (not (= 2 |old(~a10~0)|)) (or (not (<= 331498 |old(~a1~0)|)) .cse4 (not (= 14 ~a4~0)) (not (= 8 |old(~a19~0)|)) (not (= ~a12~0 0))) (not (= 4 |old(~a10~0)|)) (or (not (<= 10 |old(~a19~0)|)) .cse4) (or .cse4 .cse1 (not (= 7 |old(~a19~0)|))))) [2020-10-26 22:31:21,175 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-26 22:31:21,175 INFO L274 CegarLoopResult]: For program point L204-1(line 204) no Hoare annotation was computed. [2020-10-26 22:31:21,175 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-26 22:31:21,176 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-26 22:31:21,176 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-26 22:31:21,176 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-26 22:31:21,176 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-26 22:31:21,176 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-26 22:31:21,176 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-26 22:31:21,176 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,176 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,176 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,176 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,176 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,177 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-26 22:31:21,177 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-26 22:31:21,177 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-26 22:31:21,177 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-26 22:31:21,177 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-26 22:31:21,177 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-26 22:31:21,178 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-26 22:31:21,178 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-26 22:31:21,178 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-26 22:31:21,178 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-26 22:31:21,178 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-26 22:31:21,178 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-26 22:31:21,178 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-26 22:31:21,178 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-26 22:31:21,178 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,180 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,180 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,180 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,180 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,181 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-26 22:31:21,181 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-26 22:31:21,181 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-26 22:31:21,181 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-26 22:31:21,181 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-26 22:31:21,181 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-26 22:31:21,181 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-26 22:31:21,181 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-26 22:31:21,181 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-26 22:31:21,181 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-26 22:31:21,181 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,181 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,182 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,182 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,182 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,182 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-26 22:31:21,182 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-26 22:31:21,182 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-26 22:31:21,182 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-26 22:31:21,182 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-26 22:31:21,182 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-26 22:31:21,184 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-26 22:31:21,184 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-26 22:31:21,184 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-26 22:31:21,184 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-26 22:31:21,184 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-26 22:31:21,184 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-26 22:31:21,184 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-26 22:31:21,184 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,185 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,185 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,185 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,185 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,185 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-26 22:31:21,185 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-26 22:31:21,185 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-26 22:31:21,186 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-26 22:31:21,186 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-26 22:31:21,186 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,186 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,186 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-26 22:31:21,186 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-26 22:31:21,186 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-26 22:31:21,187 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-26 22:31:21,187 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,187 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,187 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,187 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,187 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,187 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-26 22:31:21,187 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-26 22:31:21,187 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-26 22:31:21,187 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-26 22:31:21,187 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-26 22:31:21,188 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-26 22:31:21,188 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-26 22:31:21,188 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-26 22:31:21,188 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-26 22:31:21,188 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-26 22:31:21,188 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-26 22:31:21,189 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-26 22:31:21,189 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-26 22:31:21,189 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,189 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,189 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,189 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,189 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-26 22:31:21,189 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,190 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,190 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-26 22:31:21,190 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-26 22:31:21,190 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-26 22:31:21,190 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-26 22:31:21,190 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-26 22:31:21,190 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-26 22:31:21,190 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-26 22:31:21,190 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-26 22:31:21,190 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-26 22:31:21,190 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-26 22:31:21,190 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-26 22:31:21,191 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-26 22:31:21,191 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-26 22:31:21,191 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,191 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,191 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,191 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,191 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,191 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,191 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-26 22:31:21,192 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse6 (= ~a1~0 |old(~a1~0)|)) (.cse7 (= ~a10~0 |old(~a10~0)|))) (let ((.cse1 (not (= 0 |old(~a10~0)|))) (.cse3 (not (= 9 |old(~a19~0)|))) (.cse5 (not (= 3 |old(~a10~0)|))) (.cse0 (and .cse6 (= ~a19~0 |old(~a19~0)|) .cse7)) (.cse2 (not (<= |old(~a1~0)| 505272))) (.cse4 (not (= |old(~a10~0)| 1)))) (and (or .cse0 (not (= 4 |old(~a10~0)|))) (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse1) (or .cse4 .cse0 .cse2 (not (= 7 |old(~a19~0)|))) (or (not (<= 10 |old(~a19~0)|)) .cse0 .cse4) (or .cse3 .cse4 .cse0) (or .cse5 .cse0 .cse3) (or .cse0 (not (= 2 |old(~a10~0)|))) (or .cse5 .cse0 .cse2) (or (not (<= 331498 |old(~a1~0)|)) .cse4 (not (= 14 ~a4~0)) (not (= 8 |old(~a19~0)|)) (not (= ~a12~0 0)) (and (= ~a19~0 8) .cse6 .cse7))))) [2020-10-26 22:31:21,192 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-26 22:31:21,192 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-26 22:31:21,192 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-26 22:31:21,192 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-26 22:31:21,192 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-26 22:31:21,192 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-26 22:31:21,192 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-26 22:31:21,192 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-26 22:31:21,192 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-26 22:31:21,192 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-26 22:31:21,193 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-26 22:31:21,193 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-26 22:31:21,193 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-26 22:31:21,193 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,193 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,193 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,194 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,194 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,195 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,196 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-26 22:31:21,196 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-26 22:31:21,196 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-26 22:31:21,196 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-26 22:31:21,197 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-26 22:31:21,197 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-26 22:31:21,197 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-26 22:31:21,197 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-26 22:31:21,197 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-26 22:31:21,204 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-26 22:31:21,204 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-26 22:31:21,204 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-26 22:31:21,205 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-26 22:31:21,205 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,205 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,205 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,205 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,205 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,205 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,205 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-26 22:31:21,205 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-26 22:31:21,205 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-26 22:31:21,206 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-26 22:31:21,206 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-26 22:31:21,206 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-26 22:31:21,206 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-26 22:31:21,206 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-26 22:31:21,206 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-26 22:31:21,206 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-26 22:31:21,206 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-26 22:31:21,206 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-26 22:31:21,206 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,207 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,207 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,207 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,207 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,207 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:31:21,207 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:31:21,207 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (<= ~a1~0 23)) [2020-10-26 22:31:21,207 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 22:31:21,207 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:31:21,208 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (= 9 |old(~a19~0)|)) (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 0 |old(~a10~0)|))) [2020-10-26 22:31:21,208 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:31:21,208 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse4 (= ~a10~0 3)) (.cse1 (= ~a19~0 9)) (.cse0 (= ~a10~0 0)) (.cse3 (<= ~a1~0 505272)) (.cse2 (= ~a10~0 1))) (or (and .cse0 .cse1) (and (= ~a19~0 8) (<= 331498 ~a1~0) .cse2 (= 14 ~a4~0) (= ~a12~0 0)) (not (= 0 |old(~a10~0)|)) (and .cse2 (= 7 ~a19~0) .cse3) (and .cse4 .cse1) (and .cse4 .cse3) (= ~a10~0 2) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (and .cse2 .cse1) (and .cse0 .cse3) (and .cse2 (<= 10 ~a19~0)) (= ~a10~0 4))) [2020-10-26 22:31:21,208 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-26 22:31:21,208 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-26 22:31:21,209 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse4 (= ~a10~0 3)) (.cse1 (= ~a19~0 9)) (.cse0 (= ~a10~0 0)) (.cse3 (<= ~a1~0 505272)) (.cse2 (= ~a10~0 1))) (or (and .cse0 .cse1) (and (= ~a19~0 8) (<= 331498 ~a1~0) .cse2 (= 14 ~a4~0) (= ~a12~0 0)) (not (= 0 |old(~a10~0)|)) (and .cse2 (= 7 ~a19~0) .cse3) (and .cse4 .cse1) (and .cse4 .cse3) (= ~a10~0 2) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (and .cse2 .cse1) (and .cse0 .cse3) (and .cse2 (<= 10 ~a19~0)) (= ~a10~0 4))) [2020-10-26 22:31:21,209 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:31:21,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:31:21 BoogieIcfgContainer [2020-10-26 22:31:21,250 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 22:31:21,260 INFO L168 Benchmark]: Toolchain (without parser) took 101230.34 ms. Allocated memory was 158.3 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 133.1 MB in the beginning and 1.1 GB in the end (delta: -954.3 MB). Peak memory consumption was 772.0 MB. Max. memory is 8.0 GB. [2020-10-26 22:31:21,261 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 158.3 MB. Free memory is still 133.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 22:31:21,262 INFO L168 Benchmark]: CACSL2BoogieTranslator took 909.91 ms. Allocated memory is still 158.3 MB. Free memory was 132.6 MB in the beginning and 137.7 MB in the end (delta: -5.1 MB). Peak memory consumption was 30.6 MB. Max. memory is 8.0 GB. [2020-10-26 22:31:21,266 INFO L168 Benchmark]: Boogie Preprocessor took 169.22 ms. Allocated memory is still 158.3 MB. Free memory was 137.7 MB in the beginning and 132.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-26 22:31:21,267 INFO L168 Benchmark]: RCFGBuilder took 1709.43 ms. Allocated memory is still 158.3 MB. Free memory was 132.9 MB in the beginning and 89.6 MB in the end (delta: 43.3 MB). Peak memory consumption was 58.5 MB. Max. memory is 8.0 GB. [2020-10-26 22:31:21,269 INFO L168 Benchmark]: TraceAbstraction took 98429.38 ms. Allocated memory was 158.3 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 89.1 MB in the beginning and 1.1 GB in the end (delta: -998.4 MB). Peak memory consumption was 727.0 MB. Max. memory is 8.0 GB. [2020-10-26 22:31:21,277 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 158.3 MB. Free memory is still 133.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 909.91 ms. Allocated memory is still 158.3 MB. Free memory was 132.6 MB in the beginning and 137.7 MB in the end (delta: -5.1 MB). Peak memory consumption was 30.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 169.22 ms. Allocated memory is still 158.3 MB. Free memory was 137.7 MB in the beginning and 132.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1709.43 ms. Allocated memory is still 158.3 MB. Free memory was 132.9 MB in the beginning and 89.6 MB in the end (delta: 43.3 MB). Peak memory consumption was 58.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 98429.38 ms. Allocated memory was 158.3 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 89.1 MB in the beginning and 1.1 GB in the end (delta: -998.4 MB). Peak memory consumption was 727.0 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: 584]: Loop Invariant Derived loop invariant: ((((((((((((a10 == 0 && a19 == 9) || ((((a19 == 8 && 331498 <= a1) && a10 == 1) && 14 == a4) && a12 == 0)) || !(0 == \old(a10))) || ((a10 == 1 && 7 == a19) && a1 <= 505272)) || (a10 == 3 && a19 == 9)) || (a10 == 3 && a1 <= 505272)) || a10 == 2) || !(9 == \old(a19))) || !(\old(a1) <= 23)) || (a10 == 1 && a19 == 9)) || (a10 == 0 && a1 <= 505272)) || (a10 == 1 && 10 <= a19)) || a10 == 4 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 92.3s, OverallIterations: 19, TraceHistogramMax: 4, AutomataDifference: 39.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 523 SDtfs, 6415 SDslu, 593 SDs, 0 SdLazy, 16023 SolverSat, 1785 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 28.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 324 GetRequests, 188 SyntacticMatches, 2 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5166occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 19 MinimizatonAttempts, 1592 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 821 PreInvPairs, 897 NumberOfFragments, 566 HoareAnnotationTreeSize, 821 FomulaSimplifications, 71212 FormulaSimplificationTreeSizeReduction, 1.8s HoareSimplificationTime, 9 FomulaSimplificationsInter, 15317 FormulaSimplificationTreeSizeReductionInter, 3.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 46.6s InterpolantComputationTime, 5825 NumberOfCodeBlocks, 5825 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 5806 ConstructedInterpolants, 0 QuantifiedInterpolants, 5061994 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 5620/6001 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...