/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=DEEPEST --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/Problem01_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 15:34:45,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 15:34:45,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 15:34:45,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 15:34:45,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 15:34:45,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 15:34:45,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 15:34:45,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 15:34:45,496 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 15:34:45,498 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 15:34:45,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 15:34:45,500 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 15:34:45,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 15:34:45,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 15:34:45,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 15:34:45,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 15:34:45,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 15:34:45,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 15:34:45,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 15:34:45,512 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 15:34:45,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 15:34:45,515 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 15:34:45,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 15:34:45,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 15:34:45,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 15:34:45,548 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 15:34:45,549 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 15:34:45,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 15:34:45,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 15:34:45,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 15:34:45,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 15:34:45,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 15:34:45,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 15:34:45,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 15:34:45,569 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 15:34:45,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 15:34:45,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 15:34:45,571 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 15:34:45,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 15:34:45,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 15:34:45,577 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 15:34:45,579 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 [2020-10-27 15:34:45,609 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 15:34:45,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 15:34:45,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 15:34:45,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 15:34:45,614 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 15:34:45,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 15:34:45,614 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 15:34:45,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 15:34:45,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 15:34:45,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 15:34:45,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 15:34:45,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 15:34:45,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 15:34:45,617 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 15:34:45,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 15:34:45,618 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 15:34:45,618 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 15:34:45,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 15:34:45,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 15:34:45,619 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 15:34:45,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 15:34:45,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 15:34:45,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 15:34:45,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 15:34:45,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 15:34:45,620 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 15:34:45,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 15:34:45,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 15:34:45,621 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 15:34:45,621 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 15:34:46,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 15:34:46,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 15:34:46,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 15:34:46,153 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 15:34:46,153 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 15:34:46,154 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label51.c [2020-10-27 15:34:46,249 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c39a2375/457f6cc36f1d4cb08ae142bc9a72dfe0/FLAG58d3093b4 [2020-10-27 15:34:47,067 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 15:34:47,068 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label51.c [2020-10-27 15:34:47,092 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c39a2375/457f6cc36f1d4cb08ae142bc9a72dfe0/FLAG58d3093b4 [2020-10-27 15:34:47,293 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c39a2375/457f6cc36f1d4cb08ae142bc9a72dfe0 [2020-10-27 15:34:47,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 15:34:47,303 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 15:34:47,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 15:34:47,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 15:34:47,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 15:34:47,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:34:47" (1/1) ... [2020-10-27 15:34:47,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61162730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:47, skipping insertion in model container [2020-10-27 15:34:47,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:34:47" (1/1) ... [2020-10-27 15:34:47,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 15:34:47,370 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 15:34:47,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:34:47,922 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 15:34:48,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:34:48,111 INFO L208 MainTranslator]: Completed translation [2020-10-27 15:34:48,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:48 WrapperNode [2020-10-27 15:34:48,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 15:34:48,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 15:34:48,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 15:34:48,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 15:34:48,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:48" (1/1) ... [2020-10-27 15:34:48,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:48" (1/1) ... [2020-10-27 15:34:48,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:48" (1/1) ... [2020-10-27 15:34:48,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:48" (1/1) ... [2020-10-27 15:34:48,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:48" (1/1) ... [2020-10-27 15:34:48,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:48" (1/1) ... [2020-10-27 15:34:48,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:48" (1/1) ... [2020-10-27 15:34:48,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 15:34:48,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 15:34:48,243 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 15:34:48,243 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 15:34:48,244 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:48" (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 [2020-10-27 15:34:48,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 15:34:48,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 15:34:48,330 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 15:34:48,330 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-27 15:34:48,331 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 15:34:48,331 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-27 15:34:48,331 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 15:34:48,331 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 15:34:48,331 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 15:34:48,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 15:34:48,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 15:34:48,333 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 15:34:48,333 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 15:34:48,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 15:34:48,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 15:34:48,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 15:34:48,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 15:34:48,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 15:34:48,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 15:34:49,996 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 15:34:49,996 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 15:34:49,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:34:49 BoogieIcfgContainer [2020-10-27 15:34:49,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 15:34:50,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 15:34:50,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 15:34:50,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 15:34:50,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:34:47" (1/3) ... [2020-10-27 15:34:50,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f79bdf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:34:50, skipping insertion in model container [2020-10-27 15:34:50,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:48" (2/3) ... [2020-10-27 15:34:50,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f79bdf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:34:50, skipping insertion in model container [2020-10-27 15:34:50,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:34:49" (3/3) ... [2020-10-27 15:34:50,007 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label51.c [2020-10-27 15:34:50,020 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 15:34:50,026 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 15:34:50,047 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 15:34:50,079 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 15:34:50,079 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 15:34:50,079 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 15:34:50,079 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 15:34:50,079 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 15:34:50,080 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 15:34:50,080 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 15:34:50,080 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 15:34:50,103 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-27 15:34:50,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-27 15:34:50,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:34:50,118 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:34:50,119 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:34:50,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:34:50,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1165412251, now seen corresponding path program 1 times [2020-10-27 15:34:50,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:34:50,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [74351650] [2020-10-27 15:34:50,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:34:50,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:50,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:51,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:52,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:52,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-27 15:34:52,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:34:52,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2199 [2020-10-27 15:34:52,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:52,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 15:34:52,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 15:34:52,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 15:34:52,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 15:34:53,287 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2020-10-27 15:34:53,948 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 15:34:53,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:34:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:34:53,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:34:53,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:34:53,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:34:53,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:34:53,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 15:34:53,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:34:53,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:34:53,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:34:53,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 15:34:53,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:34:54,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:34:54,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [74351650] [2020-10-27 15:34:54,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:34:54,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 15:34:54,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780780865] [2020-10-27 15:34:54,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 15:34:54,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:34:54,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 15:34:54,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-27 15:34:54,168 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 12 states. [2020-10-27 15:34:54,483 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 15:34:54,794 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 15:34:55,155 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 15:34:55,486 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 15:34:56,181 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 119 [2020-10-27 15:34:56,971 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2020-10-27 15:34:57,992 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 117 [2020-10-27 15:34:59,158 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 116 [2020-10-27 15:34:59,965 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 114 [2020-10-27 15:35:01,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:01,889 INFO L93 Difference]: Finished difference Result 479 states and 799 transitions. [2020-10-27 15:35:01,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 15:35:01,897 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 113 [2020-10-27 15:35:01,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:01,910 INFO L225 Difference]: With dead ends: 479 [2020-10-27 15:35:01,911 INFO L226 Difference]: Without dead ends: 206 [2020-10-27 15:35:01,917 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2020-10-27 15:35:01,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-27 15:35:01,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-10-27 15:35:01,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-27 15:35:01,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 278 transitions. [2020-10-27 15:35:02,001 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 278 transitions. Word has length 113 [2020-10-27 15:35:02,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:02,002 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 278 transitions. [2020-10-27 15:35:02,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 15:35:02,003 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 278 transitions. [2020-10-27 15:35:02,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-27 15:35:02,007 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:02,007 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:02,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 15:35:02,008 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:02,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:02,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1302739907, now seen corresponding path program 1 times [2020-10-27 15:35:02,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:02,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1929350540] [2020-10-27 15:35:02,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:02,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:02,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:02,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:02,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:04,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:04,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 15:35:04,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:35:04,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2645 [2020-10-27 15:35:04,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:04,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:04,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 15:35:04,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 15:35:04,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:35:05,039 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 15:35:05,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:05,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:05,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:05,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:05,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:05,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 15:35:05,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:05,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:05,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:05,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:05,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:05,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:05,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:05,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:05,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:35:05,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:05,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 15:35:05,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:05,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:05,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:05,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 15:35:05,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:05,170 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:35:05,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1929350540] [2020-10-27 15:35:05,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:05,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:35:05,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583306715] [2020-10-27 15:35:05,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:35:05,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:05,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:35:05,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:35:05,179 INFO L87 Difference]: Start difference. First operand 206 states and 278 transitions. Second operand 5 states. [2020-10-27 15:35:05,376 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 15:35:07,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:07,210 INFO L93 Difference]: Finished difference Result 483 states and 693 transitions. [2020-10-27 15:35:07,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:35:07,211 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2020-10-27 15:35:07,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:07,217 INFO L225 Difference]: With dead ends: 483 [2020-10-27 15:35:07,217 INFO L226 Difference]: Without dead ends: 343 [2020-10-27 15:35:07,219 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:35:07,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-10-27 15:35:07,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2020-10-27 15:35:07,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2020-10-27 15:35:07,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 467 transitions. [2020-10-27 15:35:07,252 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 467 transitions. Word has length 121 [2020-10-27 15:35:07,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:07,253 INFO L481 AbstractCegarLoop]: Abstraction has 343 states and 467 transitions. [2020-10-27 15:35:07,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:35:07,253 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 467 transitions. [2020-10-27 15:35:07,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-27 15:35:07,256 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:07,257 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:07,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 15:35:07,257 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:07,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:07,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1382427966, now seen corresponding path program 1 times [2020-10-27 15:35:07,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:07,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [235833973] [2020-10-27 15:35:07,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:07,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:07,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:07,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:07,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:07,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-27 15:35:07,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:35:07,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 639 [2020-10-27 15:35:07,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:07,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:07,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-27 15:35:07,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-27 15:35:07,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:08,220 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 15:35:08,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:08,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:08,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:08,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:08,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:08,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 15:35:08,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:08,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:08,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:08,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:08,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:08,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:08,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:08,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:08,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 15:35:08,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:08,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 15:35:08,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:08,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:08,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:08,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:35:08,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:08,421 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:35:08,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [235833973] [2020-10-27 15:35:08,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:08,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:35:08,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945382252] [2020-10-27 15:35:08,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:35:08,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:08,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:35:08,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:35:08,429 INFO L87 Difference]: Start difference. First operand 343 states and 467 transitions. Second operand 5 states. [2020-10-27 15:35:08,789 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 15:35:10,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:10,425 INFO L93 Difference]: Finished difference Result 719 states and 1031 transitions. [2020-10-27 15:35:10,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:35:10,427 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-10-27 15:35:10,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:10,430 INFO L225 Difference]: With dead ends: 719 [2020-10-27 15:35:10,431 INFO L226 Difference]: Without dead ends: 343 [2020-10-27 15:35:10,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:35:10,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-10-27 15:35:10,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2020-10-27 15:35:10,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2020-10-27 15:35:10,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 423 transitions. [2020-10-27 15:35:10,459 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 423 transitions. Word has length 124 [2020-10-27 15:35:10,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:10,460 INFO L481 AbstractCegarLoop]: Abstraction has 343 states and 423 transitions. [2020-10-27 15:35:10,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:35:10,460 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 423 transitions. [2020-10-27 15:35:10,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-27 15:35:10,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:10,463 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:10,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 15:35:10,463 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:10,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:10,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1093451993, now seen corresponding path program 1 times [2020-10-27 15:35:10,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:10,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1654056376] [2020-10-27 15:35:10,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:10,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:10,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:10,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:12,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:13,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:13,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-27 15:35:13,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:35:13,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2534 [2020-10-27 15:35:13,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:13,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:13,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-27 15:35:13,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-27 15:35:13,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:13,459 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 15:35:13,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:13,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:13,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:13,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:13,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:13,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 15:35:13,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:13,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:13,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:13,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:13,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:35:13,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:13,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:13,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:13,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:35:13,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:13,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:35:13,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:13,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:13,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:13,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:13,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:13,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 15:35:13,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:13,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:13,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:13,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 15:35:13,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:13,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 15:35:13,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:13,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:13,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:13,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 15:35:13,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:35:13,771 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-27 15:35:13,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1654056376] [2020-10-27 15:35:13,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:13,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:35:13,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581062017] [2020-10-27 15:35:13,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:35:13,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:13,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:35:13,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:35:13,776 INFO L87 Difference]: Start difference. First operand 343 states and 423 transitions. Second operand 5 states. [2020-10-27 15:35:14,272 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 15:35:15,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:15,590 INFO L93 Difference]: Finished difference Result 702 states and 910 transitions. [2020-10-27 15:35:15,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:35:15,591 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2020-10-27 15:35:15,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:15,595 INFO L225 Difference]: With dead ends: 702 [2020-10-27 15:35:15,595 INFO L226 Difference]: Without dead ends: 343 [2020-10-27 15:35:15,596 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:35:15,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-10-27 15:35:15,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2020-10-27 15:35:15,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2020-10-27 15:35:15,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 421 transitions. [2020-10-27 15:35:15,621 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 421 transitions. Word has length 133 [2020-10-27 15:35:15,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:15,621 INFO L481 AbstractCegarLoop]: Abstraction has 343 states and 421 transitions. [2020-10-27 15:35:15,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:35:15,621 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 421 transitions. [2020-10-27 15:35:15,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-27 15:35:15,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:15,624 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:15,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 15:35:15,624 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:15,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:15,625 INFO L82 PathProgramCache]: Analyzing trace with hash 100299812, now seen corresponding path program 1 times [2020-10-27 15:35:15,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:15,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1696254779] [2020-10-27 15:35:15,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:15,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:15,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:15,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:16,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:19,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:20,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:20,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-27 15:35:20,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:35:20,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 15:35:20,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:20,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 15:35:20,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-27 15:35:20,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-27 15:35:20,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:21,240 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-10-27 15:35:21,510 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2020-10-27 15:35:21,869 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 50 [2020-10-27 15:35:22,321 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 53 [2020-10-27 15:35:22,750 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 49 [2020-10-27 15:35:23,133 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 45 [2020-10-27 15:35:23,497 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 41 [2020-10-27 15:35:23,822 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 37 [2020-10-27 15:35:24,019 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 15:35:24,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:24,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:24,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:24,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:24,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:24,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 15:35:24,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:24,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:24,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-27 15:35:24,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:24,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:24,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:24,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:35:24,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:24,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:35:24,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:24,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:24,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:24,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:24,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:24,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 15:35:24,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:24,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:24,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:24,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 15:35:24,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:24,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 15:35:24,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:24,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:24,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:24,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 15:35:24,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:24,361 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-27 15:35:24,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1696254779] [2020-10-27 15:35:24,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:24,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 15:35:24,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742760195] [2020-10-27 15:35:24,363 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 15:35:24,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:24,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 15:35:24,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-27 15:35:24,364 INFO L87 Difference]: Start difference. First operand 343 states and 421 transitions. Second operand 13 states. [2020-10-27 15:35:24,686 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 28 [2020-10-27 15:35:25,172 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-27 15:35:25,659 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-27 15:35:26,940 WARN L193 SmtUtils]: Spent 905.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 146 [2020-10-27 15:35:28,034 WARN L193 SmtUtils]: Spent 829.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 143 [2020-10-27 15:35:29,194 WARN L193 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 140 [2020-10-27 15:35:30,215 WARN L193 SmtUtils]: Spent 835.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 137 [2020-10-27 15:35:31,549 WARN L193 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 132 [2020-10-27 15:35:32,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:32,004 INFO L93 Difference]: Finished difference Result 692 states and 896 transitions. [2020-10-27 15:35:32,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 15:35:32,005 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 136 [2020-10-27 15:35:32,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:32,009 INFO L225 Difference]: With dead ends: 692 [2020-10-27 15:35:32,010 INFO L226 Difference]: Without dead ends: 415 [2020-10-27 15:35:32,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-27 15:35:32,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-10-27 15:35:32,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2020-10-27 15:35:32,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-10-27 15:35:32,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 501 transitions. [2020-10-27 15:35:32,035 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 501 transitions. Word has length 136 [2020-10-27 15:35:32,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:32,036 INFO L481 AbstractCegarLoop]: Abstraction has 415 states and 501 transitions. [2020-10-27 15:35:32,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 15:35:32,036 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 501 transitions. [2020-10-27 15:35:32,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-27 15:35:32,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:32,039 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:32,040 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 15:35:32,040 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:32,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:32,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1541515640, now seen corresponding path program 1 times [2020-10-27 15:35:32,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:32,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [892586867] [2020-10-27 15:35:32,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:32,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:32,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:32,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:32,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:33,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:34,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:34,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-27 15:35:34,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:35:34,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2387 [2020-10-27 15:35:34,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:34,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:34,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-27 15:35:34,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 15:35:34,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:34,730 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 15:35:34,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:34,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:34,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:34,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:34,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:34,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:34,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:35:34,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:34,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:34,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:34,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:34,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:34,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:34,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:34,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:34,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:35:34,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:34,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:35:34,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:34,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:34,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:34,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:34,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:35:34,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 15:35:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:34,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:34,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:34,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 15:35:34,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:34,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 15:35:34,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:34,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:34,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:34,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 15:35:34,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:34,919 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-27 15:35:34,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [892586867] [2020-10-27 15:35:34,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:34,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 15:35:34,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945036476] [2020-10-27 15:35:34,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 15:35:34,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:34,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 15:35:34,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:35:34,925 INFO L87 Difference]: Start difference. First operand 415 states and 501 transitions. Second operand 6 states. [2020-10-27 15:35:35,349 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-27 15:35:35,593 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 15:35:38,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:38,151 INFO L93 Difference]: Finished difference Result 1312 states and 1672 transitions. [2020-10-27 15:35:38,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 15:35:38,153 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2020-10-27 15:35:38,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:38,163 INFO L225 Difference]: With dead ends: 1312 [2020-10-27 15:35:38,163 INFO L226 Difference]: Without dead ends: 963 [2020-10-27 15:35:38,171 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-27 15:35:38,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2020-10-27 15:35:38,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 963. [2020-10-27 15:35:38,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 963 states. [2020-10-27 15:35:38,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1170 transitions. [2020-10-27 15:35:38,230 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1170 transitions. Word has length 138 [2020-10-27 15:35:38,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:38,231 INFO L481 AbstractCegarLoop]: Abstraction has 963 states and 1170 transitions. [2020-10-27 15:35:38,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 15:35:38,231 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1170 transitions. [2020-10-27 15:35:38,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-27 15:35:38,236 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:38,237 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:38,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 15:35:38,237 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:38,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:38,238 INFO L82 PathProgramCache]: Analyzing trace with hash 54459571, now seen corresponding path program 1 times [2020-10-27 15:35:38,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:38,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [34101271] [2020-10-27 15:35:38,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:38,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:38,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:38,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:39,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:40,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:40,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 15:35:40,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:35:40,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2121 [2020-10-27 15:35:40,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:40,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:40,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-27 15:35:40,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 15:35:40,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:40,604 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 15:35:40,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:40,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:40,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:40,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:40,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:40,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:40,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:35:40,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:40,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:40,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:40,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:40,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:40,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:40,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:40,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:40,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:35:40,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:40,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:35:40,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:40,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:40,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:40,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:40,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:40,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 15:35:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:40,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:40,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:40,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-27 15:35:40,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:40,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 15:35:40,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:40,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:40,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:40,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 15:35:40,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:40,747 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-27 15:35:40,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [34101271] [2020-10-27 15:35:40,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:40,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:35:40,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571455654] [2020-10-27 15:35:40,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:35:40,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:40,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:35:40,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:35:40,750 INFO L87 Difference]: Start difference. First operand 963 states and 1170 transitions. Second operand 5 states. [2020-10-27 15:35:41,169 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 15:35:42,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:42,803 INFO L93 Difference]: Finished difference Result 2545 states and 3151 transitions. [2020-10-27 15:35:42,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:35:42,805 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-10-27 15:35:42,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:42,814 INFO L225 Difference]: With dead ends: 2545 [2020-10-27 15:35:42,814 INFO L226 Difference]: Without dead ends: 1648 [2020-10-27 15:35:42,817 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:35:42,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2020-10-27 15:35:42,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1378. [2020-10-27 15:35:42,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1378 states. [2020-10-27 15:35:42,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 1655 transitions. [2020-10-27 15:35:42,875 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 1655 transitions. Word has length 155 [2020-10-27 15:35:42,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:42,875 INFO L481 AbstractCegarLoop]: Abstraction has 1378 states and 1655 transitions. [2020-10-27 15:35:42,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:35:42,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 1655 transitions. [2020-10-27 15:35:42,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-27 15:35:42,882 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:42,882 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:42,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 15:35:42,883 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:42,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:42,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1308147170, now seen corresponding path program 1 times [2020-10-27 15:35:42,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:42,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1200314836] [2020-10-27 15:35:42,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:42,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:42,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:42,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:43,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:44,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:45,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:45,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-27 15:35:45,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:35:45,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2862 [2020-10-27 15:35:45,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:45,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:45,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 107 [2020-10-27 15:35:45,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 15:35:45,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:46,022 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 15:35:46,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:46,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:46,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:46,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:46,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:46,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 15:35:46,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:46,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:46,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:46,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:46,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:46,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:46,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:46,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:46,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:46,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:35:46,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:46,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:35:46,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:46,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:46,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:46,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:46,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:46,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 15:35:46,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:46,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:46,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:46,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 15:35:46,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:46,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 15:35:46,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:46,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:46,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:46,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:46,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:46,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 15:35:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:46,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:46,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:46,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-27 15:35:46,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:46,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-27 15:35:46,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:46,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:46,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:46,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-27 15:35:46,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:46,297 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 87 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-27 15:35:46,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1200314836] [2020-10-27 15:35:46,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:46,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 15:35:46,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268590092] [2020-10-27 15:35:46,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 15:35:46,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:46,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 15:35:46,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:35:46,301 INFO L87 Difference]: Start difference. First operand 1378 states and 1655 transitions. Second operand 6 states. [2020-10-27 15:35:46,621 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 15:35:47,271 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-27 15:35:49,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:49,398 INFO L93 Difference]: Finished difference Result 4192 states and 5134 transitions. [2020-10-27 15:35:49,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 15:35:49,402 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 206 [2020-10-27 15:35:49,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:49,403 INFO L225 Difference]: With dead ends: 4192 [2020-10-27 15:35:49,403 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 15:35:49,412 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-27 15:35:49,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 15:35:49,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 15:35:49,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 15:35:49,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 15:35:49,413 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 206 [2020-10-27 15:35:49,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:49,413 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 15:35:49,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 15:35:49,414 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 15:35:49,414 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 15:35:49,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 15:35:49,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 15:35:50,328 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 40 [2020-10-27 15:35:51,626 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 286 DAG size of output: 37 [2020-10-27 15:35:51,877 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 15:35:51,983 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-10-27 15:35:52,203 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 20 [2020-10-27 15:35:52,208 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-27 15:35:52,208 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-27 15:35:52,208 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-27 15:35:52,208 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-27 15:35:52,208 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 15:35:52,209 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|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-27 15:35:52,209 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 15:35:52,209 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,209 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,209 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,210 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,210 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,210 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,210 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-27 15:35:52,210 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-27 15:35:52,210 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-27 15:35:52,210 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-27 15:35:52,210 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-27 15:35:52,210 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-27 15:35:52,211 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-27 15:35:52,211 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-27 15:35:52,211 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-27 15:35:52,211 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-27 15:35:52,211 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-27 15:35:52,211 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-27 15:35:52,211 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,211 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,211 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,212 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,212 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,212 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,212 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-27 15:35:52,212 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-27 15:35:52,212 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-27 15:35:52,212 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-27 15:35:52,212 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-27 15:35:52,213 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-27 15:35:52,213 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-27 15:35:52,213 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-27 15:35:52,213 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-27 15:35:52,213 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-27 15:35:52,213 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,213 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,213 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,213 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,213 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,214 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,214 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-27 15:35:52,214 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-27 15:35:52,214 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-27 15:35:52,214 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-27 15:35:52,214 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-27 15:35:52,214 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-27 15:35:52,214 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-27 15:35:52,214 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-27 15:35:52,215 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-27 15:35:52,215 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-27 15:35:52,215 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-27 15:35:52,215 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-27 15:35:52,215 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-27 15:35:52,215 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-27 15:35:52,215 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-27 15:35:52,215 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,215 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,216 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,216 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,216 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,216 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-27 15:35:52,216 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-27 15:35:52,216 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-27 15:35:52,216 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-27 15:35:52,216 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-27 15:35:52,216 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-27 15:35:52,217 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-27 15:35:52,217 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-27 15:35:52,217 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-27 15:35:52,217 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,217 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,217 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,217 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,217 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,217 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-27 15:35:52,221 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-27 15:35:52,221 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-27 15:35:52,221 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-27 15:35:52,221 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-27 15:35:52,221 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-27 15:35:52,221 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-27 15:35:52,222 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-27 15:35:52,222 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-27 15:35:52,222 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-27 15:35:52,222 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-27 15:35:52,222 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-27 15:35:52,222 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-27 15:35:52,222 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,222 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,222 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,222 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,223 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,223 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-27 15:35:52,223 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-27 15:35:52,223 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-27 15:35:52,223 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,223 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,223 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-27 15:35:52,223 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-27 15:35:52,224 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-27 15:35:52,224 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-27 15:35:52,224 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-27 15:35:52,224 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-27 15:35:52,225 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,225 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,225 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,226 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,226 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-27 15:35:52,226 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,226 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-27 15:35:52,226 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-27 15:35:52,226 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-27 15:35:52,227 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-27 15:35:52,227 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-27 15:35:52,227 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-27 15:35:52,227 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-27 15:35:52,227 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-27 15:35:52,227 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-27 15:35:52,227 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-27 15:35:52,227 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-27 15:35:52,227 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-27 15:35:52,227 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-27 15:35:52,227 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,228 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,228 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,228 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,228 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,228 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-27 15:35:52,228 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-27 15:35:52,228 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-27 15:35:52,228 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-27 15:35:52,228 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-27 15:35:52,229 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-27 15:35:52,229 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-27 15:35:52,229 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-27 15:35:52,229 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,229 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,229 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse0 (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|)))) (and (or (= 5 |old(~a16~0)|) .cse0) (or (not (= |old(~a7~0)| 1)) .cse0) (or (not (<= 15 |old(~a8~0)|)) .cse0) (or (not (= |old(~a17~0)| |old(~a20~0)|)) .cse0 (not (= 0 |old(~a17~0)|))))) [2020-10-27 15:35:52,230 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,230 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,230 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,230 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-27 15:35:52,230 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-27 15:35:52,231 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-27 15:35:52,231 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-27 15:35:52,231 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-27 15:35:52,231 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-27 15:35:52,231 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-27 15:35:52,231 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-27 15:35:52,231 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-27 15:35:52,232 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-27 15:35:52,232 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-27 15:35:52,232 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,232 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,233 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,233 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,233 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-27 15:35:52,233 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,233 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,233 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-27 15:35:52,233 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-27 15:35:52,233 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-27 15:35:52,233 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-27 15:35:52,234 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-27 15:35:52,234 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-27 15:35:52,234 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-27 15:35:52,234 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-27 15:35:52,234 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-27 15:35:52,234 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-27 15:35:52,234 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-27 15:35:52,234 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-27 15:35:52,234 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,234 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,234 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,235 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,235 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,235 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-27 15:35:52,235 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:35:52,235 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-27 15:35:52,235 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-27 15:35:52,235 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-27 15:35:52,235 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-27 15:35:52,235 INFO L270 CegarLoopResult]: At program point L496(line 496) the Hoare annotation is: (and (not (= |old(~a7~0)| 1)) (not (<= 15 |old(~a8~0)|)) (or (not (= |old(~a17~0)| |old(~a20~0)|)) (not (= 0 |old(~a17~0)|))) (= 5 |old(~a16~0)|)) [2020-10-27 15:35:52,236 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-27 15:35:52,236 INFO L274 CegarLoopResult]: For program point L496-1(line 496) no Hoare annotation was computed. [2020-10-27 15:35:52,236 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-27 15:35:52,236 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-27 15:35:52,236 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-27 15:35:52,236 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-27 15:35:52,236 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-27 15:35:52,236 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-27 15:35:52,236 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-27 15:35:52,236 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-27 15:35:52,237 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 15:35:52,237 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a12~0 8) (= ~a8~0 15) (= ~a20~0 1) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-27 15:35:52,237 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 15:35:52,237 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 15:35:52,237 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 15) (= 5 ~a16~0) (= ~a7~0 0)) (not (= |old(~a17~0)| 1)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a21~0)| 1)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-27 15:35:52,237 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-27 15:35:52,237 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (= ~a7~0 1) (not (= |old(~a20~0)| 1)) (not (= 5 ~a16~0)) (and (= ~a20~0 ~a17~0) (= ~a17~0 0)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (not (= 15 |old(~a8~0)|)) (not (= ~a12~0 8)) (<= 15 ~a8~0) (not (= |old(~a7~0)| 0))) [2020-10-27 15:35:52,238 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-27 15:35:52,238 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-27 15:35:52,238 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (= ~a7~0 1) (not (= |old(~a20~0)| 1)) (not (= 5 ~a16~0)) (and (= ~a20~0 ~a17~0) (= ~a17~0 0)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (not (= 15 |old(~a8~0)|)) (not (= ~a12~0 8)) (<= 15 ~a8~0) (not (= |old(~a7~0)| 0))) [2020-10-27 15:35:52,238 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-27 15:35:52,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:35:52 BoogieIcfgContainer [2020-10-27 15:35:52,269 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 15:35:52,271 INFO L168 Benchmark]: Toolchain (without parser) took 64972.24 ms. Allocated memory was 151.0 MB in the beginning and 544.2 MB in the end (delta: 393.2 MB). Free memory was 130.8 MB in the beginning and 400.1 MB in the end (delta: -269.3 MB). Peak memory consumption was 328.2 MB. Max. memory is 8.0 GB. [2020-10-27 15:35:52,272 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 124.1 MB in the end (delta: 116.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 15:35:52,272 INFO L168 Benchmark]: CACSL2BoogieTranslator took 807.32 ms. Allocated memory is still 151.0 MB. Free memory was 130.2 MB in the beginning and 123.0 MB in the end (delta: 7.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 8.0 GB. [2020-10-27 15:35:52,273 INFO L168 Benchmark]: Boogie Preprocessor took 128.37 ms. Allocated memory is still 151.0 MB. Free memory was 123.0 MB in the beginning and 118.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-27 15:35:52,274 INFO L168 Benchmark]: RCFGBuilder took 1756.17 ms. Allocated memory is still 151.0 MB. Free memory was 118.3 MB in the beginning and 72.0 MB in the end (delta: 46.3 MB). Peak memory consumption was 47.9 MB. Max. memory is 8.0 GB. [2020-10-27 15:35:52,275 INFO L168 Benchmark]: TraceAbstraction took 62269.26 ms. Allocated memory was 151.0 MB in the beginning and 544.2 MB in the end (delta: 393.2 MB). Free memory was 71.5 MB in the beginning and 400.1 MB in the end (delta: -328.6 MB). Peak memory consumption was 269.1 MB. Max. memory is 8.0 GB. [2020-10-27 15:35:52,278 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 124.1 MB in the end (delta: 116.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 807.32 ms. Allocated memory is still 151.0 MB. Free memory was 130.2 MB in the beginning and 123.0 MB in the end (delta: 7.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 128.37 ms. Allocated memory is still 151.0 MB. Free memory was 123.0 MB in the beginning and 118.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1756.17 ms. Allocated memory is still 151.0 MB. Free memory was 118.3 MB in the beginning and 72.0 MB in the end (delta: 46.3 MB). Peak memory consumption was 47.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 62269.26 ms. Allocated memory was 151.0 MB in the beginning and 544.2 MB in the end (delta: 393.2 MB). Free memory was 71.5 MB in the beginning and 400.1 MB in the end (delta: -328.6 MB). Peak memory consumption was 269.1 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: 585]: Loop Invariant Derived loop invariant: (((((((((!(\old(a17) == 1) || a7 == 1) || !(\old(a20) == 1)) || !(5 == a16)) || (a20 == a17 && a17 == 0)) || !(5 == \old(a16))) || !(\old(a21) == 1)) || !(15 == \old(a8))) || !(a12 == 8)) || 15 <= a8) || !(\old(a7) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 59.3s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 29.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 208 SDtfs, 2392 SDslu, 208 SDs, 0 SdLazy, 6567 SolverSat, 518 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 60 SyntacticMatches, 4 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 16.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1378occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 270 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 118 PreInvPairs, 166 NumberOfFragments, 373 HoareAnnotationTreeSize, 118 FomulaSimplifications, 1374 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 9 FomulaSimplificationsInter, 3675 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 27.8s InterpolantComputationTime, 1126 NumberOfCodeBlocks, 1126 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1118 ConstructedInterpolants, 0 QuantifiedInterpolants, 1878983 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 1 PerfectInterpolantSequences, 233/246 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...