/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_label27.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 11:59:21,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 11:59:21,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 11:59:21,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 11:59:21,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 11:59:21,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 11:59:21,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 11:59:21,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 11:59:21,250 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 11:59:21,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 11:59:21,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 11:59:21,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 11:59:21,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 11:59:21,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 11:59:21,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 11:59:21,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 11:59:21,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 11:59:21,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 11:59:21,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 11:59:21,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 11:59:21,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 11:59:21,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 11:59:21,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 11:59:21,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 11:59:21,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 11:59:21,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 11:59:21,313 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 11:59:21,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 11:59:21,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 11:59:21,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 11:59:21,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 11:59:21,318 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 11:59:21,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 11:59:21,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 11:59:21,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 11:59:21,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 11:59:21,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 11:59:21,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 11:59:21,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 11:59:21,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 11:59:21,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 11:59:21,335 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 [2020-10-28 11:59:21,373 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 11:59:21,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 11:59:21,375 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 11:59:21,375 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 11:59:21,375 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 11:59:21,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 11:59:21,376 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 11:59:21,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 11:59:21,376 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 11:59:21,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 11:59:21,376 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 11:59:21,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 11:59:21,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 11:59:21,377 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 11:59:21,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 11:59:21,377 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 11:59:21,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 11:59:21,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 11:59:21,378 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 11:59:21,378 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 11:59:21,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 11:59:21,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 11:59:21,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 11:59:21,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 11:59:21,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 11:59:21,379 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 11:59:21,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 11:59:21,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 11:59:21,380 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 11:59:21,380 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 11:59:21,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 11:59:21,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 11:59:21,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 11:59:21,880 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 11:59:21,881 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 11:59:21,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label27.c [2020-10-28 11:59:21,970 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/56b3c9f65/d569a71337ab46b3905ba5cca9835b27/FLAG7a3f8e809 [2020-10-28 11:59:22,790 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 11:59:22,791 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label27.c [2020-10-28 11:59:22,806 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/56b3c9f65/d569a71337ab46b3905ba5cca9835b27/FLAG7a3f8e809 [2020-10-28 11:59:23,007 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/56b3c9f65/d569a71337ab46b3905ba5cca9835b27 [2020-10-28 11:59:23,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 11:59:23,021 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 11:59:23,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 11:59:23,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 11:59:23,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 11:59:23,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:59:23" (1/1) ... [2020-10-28 11:59:23,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47ad8976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:23, skipping insertion in model container [2020-10-28 11:59:23,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:59:23" (1/1) ... [2020-10-28 11:59:23,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 11:59:23,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 11:59:23,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 11:59:23,557 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 11:59:23,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 11:59:23,765 INFO L208 MainTranslator]: Completed translation [2020-10-28 11:59:23,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:23 WrapperNode [2020-10-28 11:59:23,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 11:59:23,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 11:59:23,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 11:59:23,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 11:59:23,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:23" (1/1) ... [2020-10-28 11:59:23,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:23" (1/1) ... [2020-10-28 11:59:23,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:23" (1/1) ... [2020-10-28 11:59:23,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:23" (1/1) ... [2020-10-28 11:59:23,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:23" (1/1) ... [2020-10-28 11:59:23,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:23" (1/1) ... [2020-10-28 11:59:23,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:23" (1/1) ... [2020-10-28 11:59:23,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 11:59:23,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 11:59:23,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 11:59:23,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 11:59:23,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:23" (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 [2020-10-28 11:59:23,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 11:59:23,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 11:59:23,971 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 11:59:23,971 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 11:59:23,972 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 11:59:23,972 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 11:59:23,972 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 11:59:23,972 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 11:59:23,973 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 11:59:23,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 11:59:23,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 11:59:23,973 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 11:59:23,973 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 11:59:23,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 11:59:23,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 11:59:23,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 11:59:23,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 11:59:23,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 11:59:23,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 11:59:25,378 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 11:59:25,378 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 11:59:25,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:59:25 BoogieIcfgContainer [2020-10-28 11:59:25,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 11:59:25,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 11:59:25,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 11:59:25,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 11:59:25,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:59:23" (1/3) ... [2020-10-28 11:59:25,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@388fe1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:59:25, skipping insertion in model container [2020-10-28 11:59:25,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:23" (2/3) ... [2020-10-28 11:59:25,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@388fe1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:59:25, skipping insertion in model container [2020-10-28 11:59:25,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:59:25" (3/3) ... [2020-10-28 11:59:25,391 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label27.c [2020-10-28 11:59:25,404 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 11:59:25,410 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 11:59:25,424 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 11:59:25,456 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 11:59:25,456 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 11:59:25,456 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 11:59:25,457 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 11:59:25,457 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 11:59:25,457 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 11:59:25,457 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 11:59:25,457 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 11:59:25,481 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-28 11:59:25,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-28 11:59:25,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:59:25,494 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:59:25,495 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:59:25,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:59:25,502 INFO L82 PathProgramCache]: Analyzing trace with hash 544365738, now seen corresponding path program 1 times [2020-10-28 11:59:25,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:59:25,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1465868393] [2020-10-28 11:59:25,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:59:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:25,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:26,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:26,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 11:59:26,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:26,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 709 [2020-10-28 11:59:26,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:26,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:26,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:59:26,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 11:59:26,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-28 11:59:26,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 11:59:26,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:59:26,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:26,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:26,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:26,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:59:26,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:26,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 11:59:26,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:26,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:26,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:59:26,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:26,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 11:59:26,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:59:26,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 11:59:26,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1465868393] [2020-10-28 11:59:26,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 11:59:26,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 11:59:26,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568196567] [2020-10-28 11:59:26,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 11:59:26,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:59:26,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 11:59:26,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 11:59:26,827 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-28 11:59:28,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:59:28,719 INFO L93 Difference]: Finished difference Result 586 states and 1013 transitions. [2020-10-28 11:59:28,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:59:28,721 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2020-10-28 11:59:28,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:59:28,738 INFO L225 Difference]: With dead ends: 586 [2020-10-28 11:59:28,738 INFO L226 Difference]: Without dead ends: 303 [2020-10-28 11:59:28,746 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 [2020-10-28 11:59:28,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-28 11:59:28,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 297. [2020-10-28 11:59:28,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-10-28 11:59:28,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 424 transitions. [2020-10-28 11:59:28,827 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 424 transitions. Word has length 67 [2020-10-28 11:59:28,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:59:28,828 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 424 transitions. [2020-10-28 11:59:28,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 11:59:28,829 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 424 transitions. [2020-10-28 11:59:28,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-28 11:59:28,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:59:28,835 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:59:28,836 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 11:59:28,836 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:59:28,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:59:28,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1472539947, now seen corresponding path program 1 times [2020-10-28 11:59:28,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:59:28,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2146711498] [2020-10-28 11:59:28,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:59:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:28,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:29,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:29,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:30,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:30,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-28 11:59:30,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 11:59:30,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1350 [2020-10-28 11:59:30,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:30,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:30,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:59:30,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 11:59:30,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 11:59:30,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:59:30,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:59:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:30,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:30,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:30,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:59:30,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:30,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 11:59:30,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:30,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:30,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:59:30,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:30,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 11:59:30,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:59:30,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:59:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:30,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:30,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:30,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 11:59:30,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:30,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-28 11:59:30,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:30,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:30,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:59:30,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:59:30,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-28 11:59:30,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 11:59:30,658 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 11:59:30,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2146711498] [2020-10-28 11:59:30,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 11:59:30,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 11:59:30,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33328300] [2020-10-28 11:59:30,662 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:59:30,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:59:30,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:59:30,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:59:30,664 INFO L87 Difference]: Start difference. First operand 297 states and 424 transitions. Second operand 7 states. [2020-10-28 11:59:32,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:59:32,792 INFO L93 Difference]: Finished difference Result 914 states and 1340 transitions. [2020-10-28 11:59:32,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 11:59:32,798 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 139 [2020-10-28 11:59:32,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:59:32,810 INFO L225 Difference]: With dead ends: 914 [2020-10-28 11:59:32,810 INFO L226 Difference]: Without dead ends: 623 [2020-10-28 11:59:32,815 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 11:59:32,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2020-10-28 11:59:32,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 597. [2020-10-28 11:59:32,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 597 states. [2020-10-28 11:59:32,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 767 transitions. [2020-10-28 11:59:32,883 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 767 transitions. Word has length 139 [2020-10-28 11:59:32,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:59:32,884 INFO L481 AbstractCegarLoop]: Abstraction has 597 states and 767 transitions. [2020-10-28 11:59:32,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:59:32,885 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 767 transitions. [2020-10-28 11:59:32,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-28 11:59:32,891 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:59:32,891 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:59:32,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 11:59:32,891 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:59:32,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:59:32,892 INFO L82 PathProgramCache]: Analyzing trace with hash 336430597, now seen corresponding path program 1 times [2020-10-28 11:59:32,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:59:32,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1393167728] [2020-10-28 11:59:32,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:59:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:32,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:33,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:33,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:33,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-28 11:59:33,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:59:33,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 511 [2020-10-28 11:59:33,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:33,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:33,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:59:33,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-28 11:59:33,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 11:59:33,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:59:33,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:59:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:33,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:33,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:33,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:59:33,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:33,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 11:59:33,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:33,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:33,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:59:33,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:33,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:59:33,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:33,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:59:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:33,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:33,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:33,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 11:59:33,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:33,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-28 11:59:33,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:33,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:33,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:59:33,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:33,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 11:59:33,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:59:33,853 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 11:59:33,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1393167728] [2020-10-28 11:59:33,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:59:33,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 11:59:33,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004931845] [2020-10-28 11:59:33,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 11:59:33,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:59:33,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 11:59:33,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 11:59:33,861 INFO L87 Difference]: Start difference. First operand 597 states and 767 transitions. Second operand 5 states. [2020-10-28 11:59:35,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:59:35,578 INFO L93 Difference]: Finished difference Result 898 states and 1190 transitions. [2020-10-28 11:59:35,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:59:35,579 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2020-10-28 11:59:35,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:59:35,598 INFO L225 Difference]: With dead ends: 898 [2020-10-28 11:59:35,598 INFO L226 Difference]: Without dead ends: 895 [2020-10-28 11:59:35,599 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 [2020-10-28 11:59:35,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2020-10-28 11:59:35,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 746. [2020-10-28 11:59:35,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2020-10-28 11:59:35,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1006 transitions. [2020-10-28 11:59:35,662 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1006 transitions. Word has length 146 [2020-10-28 11:59:35,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:59:35,665 INFO L481 AbstractCegarLoop]: Abstraction has 746 states and 1006 transitions. [2020-10-28 11:59:35,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 11:59:35,665 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1006 transitions. [2020-10-28 11:59:35,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-10-28 11:59:35,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:59:35,680 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:59:35,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 11:59:35,681 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:59:35,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:59:35,682 INFO L82 PathProgramCache]: Analyzing trace with hash -411900036, now seen corresponding path program 1 times [2020-10-28 11:59:35,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:59:35,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [781107951] [2020-10-28 11:59:35,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:59:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:35,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:35,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:36,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:37,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:37,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-10-28 11:59:37,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 11:59:37,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1869 [2020-10-28 11:59:37,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:37,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:37,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:59:37,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 11:59:37,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 11:59:37,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:37,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:59:37,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:37,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:37,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:37,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:59:37,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:37,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 11:59:37,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:37,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:37,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:59:37,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:37,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:59:37,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:37,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:59:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:37,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:37,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:37,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 11:59:37,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:37,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-28 11:59:37,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:37,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:37,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:59:37,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:37,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 11:59:37,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:37,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 11:59:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:37,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:38,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:38,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 11:59:38,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:38,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-28 11:59:38,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:38,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:38,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:59:38,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:59:38,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-28 11:59:38,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:38,176 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 185 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 11:59:38,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [781107951] [2020-10-28 11:59:38,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:59:38,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:59:38,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281261085] [2020-10-28 11:59:38,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:59:38,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:59:38,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:59:38,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:59:38,181 INFO L87 Difference]: Start difference. First operand 746 states and 1006 transitions. Second operand 7 states. [2020-10-28 11:59:40,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:59:40,532 INFO L93 Difference]: Finished difference Result 1959 states and 2769 transitions. [2020-10-28 11:59:40,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 11:59:40,533 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 219 [2020-10-28 11:59:40,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:59:40,542 INFO L225 Difference]: With dead ends: 1959 [2020-10-28 11:59:40,542 INFO L226 Difference]: Without dead ends: 1219 [2020-10-28 11:59:40,545 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 [2020-10-28 11:59:40,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2020-10-28 11:59:40,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1052. [2020-10-28 11:59:40,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2020-10-28 11:59:40,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1356 transitions. [2020-10-28 11:59:40,618 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1356 transitions. Word has length 219 [2020-10-28 11:59:40,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:59:40,620 INFO L481 AbstractCegarLoop]: Abstraction has 1052 states and 1356 transitions. [2020-10-28 11:59:40,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:59:40,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1356 transitions. [2020-10-28 11:59:40,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-10-28 11:59:40,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:59:40,630 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:59:40,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 11:59:40,630 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:59:40,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:59:40,631 INFO L82 PathProgramCache]: Analyzing trace with hash -775063338, now seen corresponding path program 1 times [2020-10-28 11:59:40,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:59:40,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354091504] [2020-10-28 11:59:40,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:59:40,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:40,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:40,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:40,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:44,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:45,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:45,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-28 11:59:45,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 11:59:45,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4904 [2020-10-28 11:59:45,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:45,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:45,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:59:45,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-28 11:59:45,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 11:59:45,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:59:45,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:59:45,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:45,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:45,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:45,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:59:45,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:45,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 11:59:45,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:45,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:45,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:59:45,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:45,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:59:45,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:45,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:59:45,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:45,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:45,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:45,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-28 11:59:45,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:45,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-28 11:59:45,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:45,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:45,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:59:45,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:45,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-28 11:59:45,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:45,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 11:59:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:45,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:45,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:45,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 11:59:45,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:45,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-28 11:59:45,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:45,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:45,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:59:45,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:59:45,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-28 11:59:45,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:46,111 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 192 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 11:59:46,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1354091504] [2020-10-28 11:59:46,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:59:46,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:59:46,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512632471] [2020-10-28 11:59:46,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:59:46,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:59:46,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:59:46,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:59:46,115 INFO L87 Difference]: Start difference. First operand 1052 states and 1356 transitions. Second operand 7 states. [2020-10-28 11:59:48,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:59:48,160 INFO L93 Difference]: Finished difference Result 2563 states and 3505 transitions. [2020-10-28 11:59:48,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 11:59:48,161 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 226 [2020-10-28 11:59:48,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:59:48,174 INFO L225 Difference]: With dead ends: 2563 [2020-10-28 11:59:48,174 INFO L226 Difference]: Without dead ends: 1517 [2020-10-28 11:59:48,177 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 11:59:48,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2020-10-28 11:59:48,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1497. [2020-10-28 11:59:48,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1497 states. [2020-10-28 11:59:48,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 2052 transitions. [2020-10-28 11:59:48,253 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 2052 transitions. Word has length 226 [2020-10-28 11:59:48,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:59:48,254 INFO L481 AbstractCegarLoop]: Abstraction has 1497 states and 2052 transitions. [2020-10-28 11:59:48,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:59:48,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 2052 transitions. [2020-10-28 11:59:48,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-28 11:59:48,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:59:48,260 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:59:48,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 11:59:48,261 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:59:48,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:59:48,261 INFO L82 PathProgramCache]: Analyzing trace with hash 377007530, now seen corresponding path program 1 times [2020-10-28 11:59:48,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:59:48,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [958381] [2020-10-28 11:59:48,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:59:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:48,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:48,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:48,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:52,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:53,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:53,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-28 11:59:53,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 11:59:53,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-28 11:59:53,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:53,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:53,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:59:53,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 11:59:53,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 11:59:53,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:53,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:59:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:53,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:53,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:53,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:59:53,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:53,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 11:59:53,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:53,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:53,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:59:53,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:53,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 11:59:53,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:53,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:59:53,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:53,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:53,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:53,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 11:59:53,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:53,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-28 11:59:53,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:53,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:53,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:59:53,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:59:53,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-28 11:59:53,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:53,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-28 11:59:53,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:53,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:53,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:53,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 11:59:53,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:53,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 11:59:53,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:53,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:53,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:59:53,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 11:59:53,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:59:53,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:53,934 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 118 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 11:59:53,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [958381] [2020-10-28 11:59:53,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:59:53,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:59:53,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921210256] [2020-10-28 11:59:53,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:59:53,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:59:53,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:59:53,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:59:53,937 INFO L87 Difference]: Start difference. First operand 1497 states and 2052 transitions. Second operand 7 states. [2020-10-28 11:59:55,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:59:55,658 INFO L93 Difference]: Finished difference Result 3165 states and 4358 transitions. [2020-10-28 11:59:55,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 11:59:55,662 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 236 [2020-10-28 11:59:55,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:59:55,674 INFO L225 Difference]: With dead ends: 3165 [2020-10-28 11:59:55,674 INFO L226 Difference]: Without dead ends: 1674 [2020-10-28 11:59:55,681 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-28 11:59:55,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2020-10-28 11:59:55,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1652. [2020-10-28 11:59:55,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1652 states. [2020-10-28 11:59:55,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 2240 transitions. [2020-10-28 11:59:55,760 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 2240 transitions. Word has length 236 [2020-10-28 11:59:55,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:59:55,761 INFO L481 AbstractCegarLoop]: Abstraction has 1652 states and 2240 transitions. [2020-10-28 11:59:55,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:59:55,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 2240 transitions. [2020-10-28 11:59:55,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-10-28 11:59:55,767 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:59:55,767 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:59:55,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 11:59:55,768 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:59:55,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:59:55,768 INFO L82 PathProgramCache]: Analyzing trace with hash 514617018, now seen corresponding path program 1 times [2020-10-28 11:59:55,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:59:55,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1173827880] [2020-10-28 11:59:55,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:59:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:55,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:55,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:56,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:56,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:57,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:57,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-28 11:59:57,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 11:59:57,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1650 [2020-10-28 11:59:57,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:57,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:57,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:59:57,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-28 11:59:57,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 11:59:57,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:57,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:59:57,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:57,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:57,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:57,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:59:57,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:57,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 11:59:57,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:57,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:57,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:59:57,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:57,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:59:57,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:57,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:59:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:57,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:57,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:57,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 11:59:57,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:57,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-28 11:59:57,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:57,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:57,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:59:57,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:57,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 11:59:57,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:57,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 11:59:57,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:57,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:57,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:57,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 11:59:57,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:57,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-28 11:59:57,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:57,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:57,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:59:57,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:59:57,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-28 11:59:57,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:58,021 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 194 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 11:59:58,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1173827880] [2020-10-28 11:59:58,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:59:58,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:59:58,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122558902] [2020-10-28 11:59:58,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:59:58,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:59:58,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:59:58,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:59:58,025 INFO L87 Difference]: Start difference. First operand 1652 states and 2240 transitions. Second operand 7 states. [2020-10-28 11:59:59,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:59:59,972 INFO L93 Difference]: Finished difference Result 3457 states and 4817 transitions. [2020-10-28 11:59:59,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 11:59:59,973 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 244 [2020-10-28 11:59:59,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:59:59,986 INFO L225 Difference]: With dead ends: 3457 [2020-10-28 11:59:59,986 INFO L226 Difference]: Without dead ends: 1954 [2020-10-28 11:59:59,992 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-28 11:59:59,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2020-10-28 12:00:00,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1944. [2020-10-28 12:00:00,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1944 states. [2020-10-28 12:00:00,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2619 transitions. [2020-10-28 12:00:00,068 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2619 transitions. Word has length 244 [2020-10-28 12:00:00,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:00:00,069 INFO L481 AbstractCegarLoop]: Abstraction has 1944 states and 2619 transitions. [2020-10-28 12:00:00,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:00:00,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2619 transitions. [2020-10-28 12:00:00,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2020-10-28 12:00:00,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:00:00,077 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:00:00,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 12:00:00,077 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:00:00,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:00:00,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1452319770, now seen corresponding path program 1 times [2020-10-28 12:00:00,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:00:00,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1256467755] [2020-10-28 12:00:00,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:00:00,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:00,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:00,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:00,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:01,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:02,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:02,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-28 12:00:02,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:00:02,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2643 [2020-10-28 12:00:02,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:02,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:02,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:00:02,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-28 12:00:02,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-28 12:00:02,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:02,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:00:02,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:02,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:02,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:02,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:00:02,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:02,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:00:02,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:02,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:02,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:00:02,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:02,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:00:02,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:02,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:00:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:02,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:02,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:02,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:00:02,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:02,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-28 12:00:02,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:02,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:02,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:00:02,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:02,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:00:02,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:02,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 12:00:03,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:03,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:03,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:03,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 12:00:03,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:03,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-28 12:00:03,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:03,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:03,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:00:03,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:00:03,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-28 12:00:03,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:03,361 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 194 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:00:03,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1256467755] [2020-10-28 12:00:03,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:00:03,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:00:03,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424971225] [2020-10-28 12:00:03,363 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:00:03,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:00:03,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:00:03,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:00:03,364 INFO L87 Difference]: Start difference. First operand 1944 states and 2619 transitions. Second operand 7 states. [2020-10-28 12:00:05,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:00:05,720 INFO L93 Difference]: Finished difference Result 4336 states and 6601 transitions. [2020-10-28 12:00:05,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:00:05,720 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 266 [2020-10-28 12:00:05,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:00:05,738 INFO L225 Difference]: With dead ends: 4336 [2020-10-28 12:00:05,739 INFO L226 Difference]: Without dead ends: 1917 [2020-10-28 12:00:05,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:00:05,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2020-10-28 12:00:05,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1648. [2020-10-28 12:00:05,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1648 states. [2020-10-28 12:00:05,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 2071 transitions. [2020-10-28 12:00:05,854 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 2071 transitions. Word has length 266 [2020-10-28 12:00:05,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:00:05,855 INFO L481 AbstractCegarLoop]: Abstraction has 1648 states and 2071 transitions. [2020-10-28 12:00:05,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:00:05,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 2071 transitions. [2020-10-28 12:00:05,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2020-10-28 12:00:05,864 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:00:05,864 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 12:00:05,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 12:00:05,865 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:00:05,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:00:05,865 INFO L82 PathProgramCache]: Analyzing trace with hash 2070849395, now seen corresponding path program 1 times [2020-10-28 12:00:05,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:00:05,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [529836583] [2020-10-28 12:00:05,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:00:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:06,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:06,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:06,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:09,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:09,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 373 [2020-10-28 12:00:09,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:00:09,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3224 [2020-10-28 12:00:09,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:09,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:09,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:00:09,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-28 12:00:09,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-28 12:00:09,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:09,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:00:09,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:09,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:09,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:09,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:00:09,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:09,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 12:00:09,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:09,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:09,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:00:09,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:09,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:00:09,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:09,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:00:09,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:09,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:09,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:09,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 12:00:09,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:09,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-28 12:00:09,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:09,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:09,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:00:09,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:09,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 12:00:09,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:09,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 12:00:09,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:09,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:09,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:09,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-28 12:00:09,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:09,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-28 12:00:09,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:09,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:09,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:00:09,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:00:09,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 12:00:09,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:09,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-28 12:00:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:09,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:09,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:09,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 12:00:09,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:09,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-28 12:00:09,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:09,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:09,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:00:09,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-28 12:00:09,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:00:09,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:10,109 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 255 proven. 76 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-10-28 12:00:10,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [529836583] [2020-10-28 12:00:10,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:00:10,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:00:10,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222829204] [2020-10-28 12:00:10,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:00:10,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:00:10,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:00:10,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:00:10,119 INFO L87 Difference]: Start difference. First operand 1648 states and 2071 transitions. Second operand 7 states. [2020-10-28 12:00:12,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:00:12,215 INFO L93 Difference]: Finished difference Result 3451 states and 4399 transitions. [2020-10-28 12:00:12,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:00:12,215 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 357 [2020-10-28 12:00:12,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:00:12,226 INFO L225 Difference]: With dead ends: 3451 [2020-10-28 12:00:12,226 INFO L226 Difference]: Without dead ends: 1952 [2020-10-28 12:00:12,231 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 [2020-10-28 12:00:12,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1952 states. [2020-10-28 12:00:12,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1952 to 1948. [2020-10-28 12:00:12,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1948 states. [2020-10-28 12:00:12,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1948 states to 1948 states and 2407 transitions. [2020-10-28 12:00:12,292 INFO L78 Accepts]: Start accepts. Automaton has 1948 states and 2407 transitions. Word has length 357 [2020-10-28 12:00:12,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:00:12,293 INFO L481 AbstractCegarLoop]: Abstraction has 1948 states and 2407 transitions. [2020-10-28 12:00:12,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:00:12,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1948 states and 2407 transitions. [2020-10-28 12:00:12,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2020-10-28 12:00:12,304 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:00:12,304 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:00:12,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 12:00:12,305 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:00:12,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:00:12,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1839709159, now seen corresponding path program 1 times [2020-10-28 12:00:12,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:00:12,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1495573548] [2020-10-28 12:00:12,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:00:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:12,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:12,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:13,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:13,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 392 [2020-10-28 12:00:13,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:00:13,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 831 [2020-10-28 12:00:13,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:13,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:13,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:00:13,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 323 [2020-10-28 12:00:13,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 12:00:13,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:13,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:00:13,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:13,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:13,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:13,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:00:13,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:13,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:00:13,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:13,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:13,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:00:13,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:13,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:00:13,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:13,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:00:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:13,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:13,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:13,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-28 12:00:13,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:13,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 12:00:13,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:13,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:13,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:00:13,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:13,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:00:13,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:13,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-28 12:00:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:13,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:13,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:13,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-28 12:00:13,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:13,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:00:13,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:13,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:13,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:00:13,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:13,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:00:13,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:13,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-28 12:00:13,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:13,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:13,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:13,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 12:00:13,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:13,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-28 12:00:13,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:13,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:13,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:00:13,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:13,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 12:00:13,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:13,884 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 180 proven. 3 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2020-10-28 12:00:13,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1495573548] [2020-10-28 12:00:13,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:00:13,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:00:13,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069475512] [2020-10-28 12:00:13,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:00:13,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:00:13,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:00:13,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:00:13,889 INFO L87 Difference]: Start difference. First operand 1948 states and 2407 transitions. Second operand 5 states. [2020-10-28 12:00:15,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:00:15,819 INFO L93 Difference]: Finished difference Result 4760 states and 5943 transitions. [2020-10-28 12:00:15,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:00:15,820 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 376 [2020-10-28 12:00:15,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:00:15,837 INFO L225 Difference]: With dead ends: 4760 [2020-10-28 12:00:15,837 INFO L226 Difference]: Without dead ends: 2961 [2020-10-28 12:00:15,844 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 [2020-10-28 12:00:15,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2020-10-28 12:00:15,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 2528. [2020-10-28 12:00:15,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2528 states. [2020-10-28 12:00:15,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2528 states to 2528 states and 3165 transitions. [2020-10-28 12:00:15,938 INFO L78 Accepts]: Start accepts. Automaton has 2528 states and 3165 transitions. Word has length 376 [2020-10-28 12:00:15,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:00:15,939 INFO L481 AbstractCegarLoop]: Abstraction has 2528 states and 3165 transitions. [2020-10-28 12:00:15,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:00:15,939 INFO L276 IsEmpty]: Start isEmpty. Operand 2528 states and 3165 transitions. [2020-10-28 12:00:15,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2020-10-28 12:00:15,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:00:15,954 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 12:00:15,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 12:00:15,954 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:00:15,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:00:15,955 INFO L82 PathProgramCache]: Analyzing trace with hash 674738671, now seen corresponding path program 1 times [2020-10-28 12:00:15,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:00:15,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2031412938] [2020-10-28 12:00:15,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:00:16,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:16,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:16,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:17,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:17,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 403 [2020-10-28 12:00:17,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:00:17,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1007 [2020-10-28 12:00:17,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:17,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:17,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:00:17,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 334 [2020-10-28 12:00:17,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 12:00:17,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:17,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:00:17,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:17,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:17,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:17,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:00:17,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:17,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:00:17,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:17,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:17,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:00:17,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:17,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:00:17,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:17,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:00:17,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:17,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:17,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:17,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 12:00:17,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:17,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:00:17,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:17,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:17,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:00:17,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:17,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:00:17,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:17,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 12:00:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:17,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:17,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:17,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-28 12:00:17,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:17,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:00:17,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:17,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:17,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:00:17,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:17,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:00:17,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:17,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-28 12:00:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:17,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:17,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:17,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 12:00:17,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:17,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-28 12:00:17,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:17,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:17,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:00:17,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:17,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-28 12:00:17,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:17,610 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 180 proven. 3 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-10-28 12:00:17,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2031412938] [2020-10-28 12:00:17,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:00:17,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:00:17,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065193585] [2020-10-28 12:00:17,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:00:17,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:00:17,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:00:17,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:00:17,612 INFO L87 Difference]: Start difference. First operand 2528 states and 3165 transitions. Second operand 5 states. [2020-10-28 12:00:19,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:00:19,374 INFO L93 Difference]: Finished difference Result 3695 states and 4734 transitions. [2020-10-28 12:00:19,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:00:19,379 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 387 [2020-10-28 12:00:19,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:00:19,399 INFO L225 Difference]: With dead ends: 3695 [2020-10-28 12:00:19,400 INFO L226 Difference]: Without dead ends: 3692 [2020-10-28 12:00:19,402 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 [2020-10-28 12:00:19,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3692 states. [2020-10-28 12:00:19,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3692 to 3547. [2020-10-28 12:00:19,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3547 states. [2020-10-28 12:00:19,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3547 states to 3547 states and 4568 transitions. [2020-10-28 12:00:19,560 INFO L78 Accepts]: Start accepts. Automaton has 3547 states and 4568 transitions. Word has length 387 [2020-10-28 12:00:19,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:00:19,561 INFO L481 AbstractCegarLoop]: Abstraction has 3547 states and 4568 transitions. [2020-10-28 12:00:19,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:00:19,562 INFO L276 IsEmpty]: Start isEmpty. Operand 3547 states and 4568 transitions. [2020-10-28 12:00:19,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2020-10-28 12:00:19,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:00:19,578 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 12:00:19,578 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 12:00:19,578 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:00:19,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:00:19,579 INFO L82 PathProgramCache]: Analyzing trace with hash 803661245, now seen corresponding path program 1 times [2020-10-28 12:00:19,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:00:19,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1583428356] [2020-10-28 12:00:19,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:00:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:19,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:20,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:20,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:20,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 408 [2020-10-28 12:00:20,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:00:20,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1072 [2020-10-28 12:00:20,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:20,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:20,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:00:20,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 339 [2020-10-28 12:00:20,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 12:00:20,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:20,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:00:20,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:20,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:20,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:20,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:00:20,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:20,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:00:20,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:20,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:20,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:00:20,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:20,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:00:20,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:20,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:00:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:20,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:20,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:20,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 12:00:20,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:20,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:00:20,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:20,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:20,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:00:20,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:20,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:00:20,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:20,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 12:00:20,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:20,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:20,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:20,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-28 12:00:20,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:20,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:00:20,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:20,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:20,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:00:20,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:20,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:00:20,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:21,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-28 12:00:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:21,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:21,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:21,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-28 12:00:21,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:21,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-28 12:00:21,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:21,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:21,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:00:21,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:21,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-28 12:00:21,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:21,347 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 180 proven. 3 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-10-28 12:00:21,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1583428356] [2020-10-28 12:00:21,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:00:21,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 12:00:21,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037208469] [2020-10-28 12:00:21,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 12:00:21,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:00:21,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 12:00:21,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:00:21,350 INFO L87 Difference]: Start difference. First operand 3547 states and 4568 transitions. Second operand 6 states. [2020-10-28 12:00:23,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:00:23,773 INFO L93 Difference]: Finished difference Result 7663 states and 9874 transitions. [2020-10-28 12:00:23,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 12:00:23,774 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 392 [2020-10-28 12:00:23,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:00:23,776 INFO L225 Difference]: With dead ends: 7663 [2020-10-28 12:00:23,776 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 12:00:23,795 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:00:23,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 12:00:23,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 12:00:23,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 12:00:23,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 12:00:23,796 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 392 [2020-10-28 12:00:23,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:00:23,797 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 12:00:23,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 12:00:23,797 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 12:00:23,797 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 12:00:23,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 12:00:23,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 12:00:24,404 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 142 [2020-10-28 12:00:25,290 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 142 [2020-10-28 12:00:25,773 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 31 [2020-10-28 12:00:26,601 WARN L193 SmtUtils]: Spent 818.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 39 [2020-10-28 12:00:26,927 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 26 [2020-10-28 12:00:27,248 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 31 [2020-10-28 12:00:27,253 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-28 12:00:27,253 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-28 12:00:27,254 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-28 12:00:27,254 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-28 12:00:27,254 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:00:27,256 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)|)) [2020-10-28 12:00:27,256 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:00:27,256 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-28 12:00:27,256 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-28 12:00:27,256 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-28 12:00:27,256 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-28 12:00:27,257 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-28 12:00:27,257 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-28 12:00:27,257 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-28 12:00:27,257 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-28 12:00:27,257 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-28 12:00:27,258 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-28 12:00:27,258 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-28 12:00:27,258 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-28 12:00:27,259 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-28 12:00:27,259 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,259 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,259 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,259 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,259 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,259 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,259 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-28 12:00:27,259 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-28 12:00:27,259 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-28 12:00:27,260 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-28 12:00:27,260 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-28 12:00:27,260 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-28 12:00:27,260 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-28 12:00:27,260 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-28 12:00:27,260 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-28 12:00:27,260 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-28 12:00:27,260 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-28 12:00:27,260 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,260 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,260 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,260 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,261 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,261 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-28 12:00:27,261 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-28 12:00:27,261 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-28 12:00:27,261 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-28 12:00:27,261 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-28 12:00:27,262 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-28 12:00:27,262 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-28 12:00:27,262 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-28 12:00:27,262 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-28 12:00:27,262 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-28 12:00:27,262 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-28 12:00:27,262 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-28 12:00:27,262 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-28 12:00:27,263 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-28 12:00:27,263 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,263 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,264 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,265 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,265 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,265 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-28 12:00:27,265 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-28 12:00:27,265 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-28 12:00:27,265 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-28 12:00:27,265 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-28 12:00:27,265 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-28 12:00:27,265 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-28 12:00:27,265 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-28 12:00:27,265 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-28 12:00:27,265 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-28 12:00:27,266 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,266 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,266 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,266 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,266 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,266 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-28 12:00:27,266 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-28 12:00:27,266 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-28 12:00:27,266 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-28 12:00:27,266 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-28 12:00:27,266 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-28 12:00:27,266 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-28 12:00:27,266 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-28 12:00:27,267 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-28 12:00:27,267 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-28 12:00:27,267 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-28 12:00:27,267 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-28 12:00:27,267 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-28 12:00:27,267 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,267 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,267 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,267 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,267 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,267 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-28 12:00:27,267 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-28 12:00:27,268 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-28 12:00:27,268 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-28 12:00:27,269 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-28 12:00:27,269 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,269 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,269 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-28 12:00:27,269 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-28 12:00:27,269 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-28 12:00:27,269 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-28 12:00:27,269 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,269 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,269 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,270 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,270 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,270 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-28 12:00:27,270 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-28 12:00:27,270 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-28 12:00:27,270 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-28 12:00:27,270 INFO L270 CegarLoopResult]: At program point L186(line 186) the Hoare annotation is: (let ((.cse0 (not (= 2 |old(~a10~0)|)))) (and (or (not (<= 8 |old(~a19~0)|)) .cse0) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a19~0)| 6)) (not (= 8 |old(~a19~0)|)) (or .cse0 (not (<= 0 |old(~a1~0)|))) (not (<= |old(~a10~0)| 1)))) [2020-10-28 12:00:27,270 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-28 12:00:27,270 INFO L274 CegarLoopResult]: For program point L186-1(line 186) no Hoare annotation was computed. [2020-10-28 12:00:27,271 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-28 12:00:27,271 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-28 12:00:27,271 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-28 12:00:27,271 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-28 12:00:27,271 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-28 12:00:27,272 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-28 12:00:27,272 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-28 12:00:27,272 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,272 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,272 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,272 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,272 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-28 12:00:27,272 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,272 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,272 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-28 12:00:27,273 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-28 12:00:27,273 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-28 12:00:27,273 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-28 12:00:27,273 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-28 12:00:27,273 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-28 12:00:27,273 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-28 12:00:27,273 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-28 12:00:27,273 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-28 12:00:27,273 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-28 12:00:27,273 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-28 12:00:27,273 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-28 12:00:27,273 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-28 12:00:27,273 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,274 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,274 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,274 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,274 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,274 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,274 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-28 12:00:27,275 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) (.cse1 (not (= 2 |old(~a10~0)|)))) (and (or .cse0 (not (= 8 |old(~a19~0)|))) (or .cse0 (not (<= |old(~a19~0)| 6))) (or .cse0 (not (<= |old(~a10~0)| 1))) (or .cse0 (not (= 9 |old(~a19~0)|))) (or .cse0 (not (<= 8 |old(~a19~0)|)) .cse1) (or .cse0 .cse1 (not (<= 0 |old(~a1~0)|))))) [2020-10-28 12:00:27,275 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-28 12:00:27,275 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-28 12:00:27,275 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-28 12:00:27,275 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-28 12:00:27,276 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-28 12:00:27,276 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-28 12:00:27,276 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-28 12:00:27,276 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-28 12:00:27,276 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-28 12:00:27,276 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-28 12:00:27,276 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-28 12:00:27,276 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-28 12:00:27,276 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-28 12:00:27,276 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,276 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,277 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,277 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,277 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,277 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,277 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-28 12:00:27,277 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-28 12:00:27,277 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-28 12:00:27,277 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-28 12:00:27,277 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-28 12:00:27,277 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-28 12:00:27,277 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-28 12:00:27,278 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-28 12:00:27,278 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-28 12:00:27,278 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-28 12:00:27,278 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-28 12:00:27,278 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-28 12:00:27,278 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-28 12:00:27,278 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,278 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,278 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,278 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,278 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,278 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,279 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-28 12:00:27,279 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-28 12:00:27,279 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-28 12:00:27,279 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-28 12:00:27,279 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-28 12:00:27,279 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-28 12:00:27,279 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-28 12:00:27,279 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-28 12:00:27,279 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-28 12:00:27,279 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-28 12:00:27,279 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-28 12:00:27,279 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-28 12:00:27,280 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,280 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,280 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,280 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,280 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,280 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:00:27,280 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:00:27,280 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (= 23 ~a1~0)) [2020-10-28 12:00:27,280 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 12:00:27,281 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:00:27,281 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (and (= 23 ~a1~0) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) [2020-10-28 12:00:27,281 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-28 12:00:27,281 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse0 (= ~a10~0 2))) (or (= ~a19~0 8) (and .cse0 (not (= 7 ~a19~0))) (not (= 9 |old(~a19~0)|)) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (<= ~a10~0 1) (<= ~a19~0 6) (not (= 23 |old(~a1~0)|)) (and (<= 0 ~a1~0) .cse0))) [2020-10-28 12:00:27,281 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-28 12:00:27,281 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-28 12:00:27,281 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse0 (= ~a10~0 2))) (or (= ~a19~0 8) (and .cse0 (not (= 7 ~a19~0))) (not (= 9 |old(~a19~0)|)) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (<= ~a10~0 1) (<= ~a19~0 6) (not (= 23 |old(~a1~0)|)) (and (<= 0 ~a1~0) .cse0))) [2020-10-28 12:00:27,281 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-28 12:00:27,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 12:00:27 BoogieIcfgContainer [2020-10-28 12:00:27,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 12:00:27,320 INFO L168 Benchmark]: Toolchain (without parser) took 64300.87 ms. Allocated memory was 125.8 MB in the beginning and 974.1 MB in the end (delta: 848.3 MB). Free memory was 99.7 MB in the beginning and 537.9 MB in the end (delta: -438.2 MB). Peak memory consumption was 580.7 MB. Max. memory is 8.0 GB. [2020-10-28 12:00:27,323 INFO L168 Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 125.8 MB. Free memory is still 87.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 12:00:27,325 INFO L168 Benchmark]: CACSL2BoogieTranslator took 740.61 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 99.1 MB in the beginning and 130.8 MB in the end (delta: -31.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. [2020-10-28 12:00:27,326 INFO L168 Benchmark]: Boogie Preprocessor took 112.09 ms. Allocated memory is still 151.0 MB. Free memory was 130.8 MB in the beginning and 126.2 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-28 12:00:27,329 INFO L168 Benchmark]: RCFGBuilder took 1501.04 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 70.3 MB in the end (delta: 55.9 MB). Peak memory consumption was 58.4 MB. Max. memory is 8.0 GB. [2020-10-28 12:00:27,334 INFO L168 Benchmark]: TraceAbstraction took 61931.56 ms. Allocated memory was 151.0 MB in the beginning and 974.1 MB in the end (delta: 823.1 MB). Free memory was 69.8 MB in the beginning and 537.9 MB in the end (delta: -468.1 MB). Peak memory consumption was 525.4 MB. Max. memory is 8.0 GB. [2020-10-28 12:00:27,340 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 ms. Allocated memory is still 125.8 MB. Free memory is still 87.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 740.61 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 99.1 MB in the beginning and 130.8 MB in the end (delta: -31.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 112.09 ms. Allocated memory is still 151.0 MB. Free memory was 130.8 MB in the beginning and 126.2 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1501.04 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 70.3 MB in the end (delta: 55.9 MB). Peak memory consumption was 58.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 61931.56 ms. Allocated memory was 151.0 MB in the beginning and 974.1 MB in the end (delta: 823.1 MB). Free memory was 69.8 MB in the beginning and 537.9 MB in the end (delta: -468.1 MB). Peak memory consumption was 525.4 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: (((((((a19 == 8 || (a10 == 2 && !(7 == a19))) || !(9 == \old(a19))) || a19 == 9) || !(0 == \old(a10))) || a10 <= 1) || a19 <= 6) || !(23 == \old(a1))) || (0 <= a1 && a10 == 2) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 58.3s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 24.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 336 SDtfs, 4596 SDslu, 410 SDs, 0 SdLazy, 10262 SolverSat, 1582 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 189 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3547occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 12 MinimizatonAttempts, 1251 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 284 PreInvPairs, 366 NumberOfFragments, 310 HoareAnnotationTreeSize, 284 FomulaSimplifications, 369938 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 9 FomulaSimplificationsInter, 45948 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 30.3s InterpolantComputationTime, 3055 NumberOfCodeBlocks, 3055 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 3043 ConstructedInterpolants, 0 QuantifiedInterpolants, 1928236 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 2706/2877 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...