/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 22:31:20,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 22:31:20,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 22:31:20,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 22:31:20,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 22:31:20,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 22:31:20,551 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 22:31:20,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 22:31:20,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 22:31:20,565 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 22:31:20,566 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 22:31:20,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 22:31:20,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 22:31:20,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 22:31:20,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 22:31:20,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 22:31:20,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 22:31:20,581 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 22:31:20,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 22:31:20,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 22:31:20,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 22:31:20,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 22:31:20,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 22:31:20,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 22:31:20,613 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 22:31:20,614 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 22:31:20,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 22:31:20,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 22:31:20,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 22:31:20,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 22:31:20,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 22:31:20,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 22:31:20,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 22:31:20,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 22:31:20,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 22:31:20,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 22:31:20,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 22:31:20,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 22:31:20,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 22:31:20,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 22:31:20,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 22:31:20,634 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 22:31:20,676 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 22:31:20,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 22:31:20,678 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 22:31:20,678 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 22:31:20,678 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 22:31:20,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 22:31:20,679 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 22:31:20,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 22:31:20,679 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 22:31:20,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 22:31:20,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 22:31:20,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 22:31:20,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 22:31:20,680 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 22:31:20,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 22:31:20,680 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 22:31:20,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 22:31:20,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 22:31:20,681 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 22:31:20,681 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 22:31:20,681 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 22:31:20,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 22:31:20,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 22:31:20,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 22:31:20,682 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 22:31:20,682 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 22:31:20,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 22:31:20,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 22:31:20,683 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 22:31:20,683 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 22:31:21,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 22:31:21,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 22:31:21,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 22:31:21,142 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 22:31:21,142 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 22:31:21,148 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label19.c [2020-10-26 22:31:21,224 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f40f33533/59d27883aa104f3c870cb03233239227/FLAGe9468c1c2 [2020-10-26 22:31:22,049 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 22:31:22,052 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label19.c [2020-10-26 22:31:22,072 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f40f33533/59d27883aa104f3c870cb03233239227/FLAGe9468c1c2 [2020-10-26 22:31:22,232 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f40f33533/59d27883aa104f3c870cb03233239227 [2020-10-26 22:31:22,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 22:31:22,243 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 22:31:22,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 22:31:22,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 22:31:22,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 22:31:22,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:31:22" (1/1) ... [2020-10-26 22:31:22,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5de1bd80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:22, skipping insertion in model container [2020-10-26 22:31:22,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:31:22" (1/1) ... [2020-10-26 22:31:22,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 22:31:22,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 22:31:22,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:31:22,763 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 22:31:22,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:31:23,025 INFO L208 MainTranslator]: Completed translation [2020-10-26 22:31:23,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:23 WrapperNode [2020-10-26 22:31:23,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 22:31:23,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 22:31:23,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 22:31:23,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 22:31:23,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:23" (1/1) ... [2020-10-26 22:31:23,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:23" (1/1) ... [2020-10-26 22:31:23,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:23" (1/1) ... [2020-10-26 22:31:23,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:23" (1/1) ... [2020-10-26 22:31:23,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:23" (1/1) ... [2020-10-26 22:31:23,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:23" (1/1) ... [2020-10-26 22:31:23,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:23" (1/1) ... [2020-10-26 22:31:23,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 22:31:23,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 22:31:23,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 22:31:23,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 22:31:23,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 22:31:23,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 22:31:23,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 22:31:23,228 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 22:31:23,228 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 22:31:23,228 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 22:31:23,228 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 22:31:23,229 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 22:31:23,229 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 22:31:23,229 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 22:31:23,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 22:31:23,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 22:31:23,230 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 22:31:23,230 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 22:31:23,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 22:31:23,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 22:31:23,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 22:31:23,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 22:31:23,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 22:31:23,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 22:31:24,877 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 22:31:24,877 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 22:31:24,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:31:24 BoogieIcfgContainer [2020-10-26 22:31:24,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 22:31:24,883 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 22:31:24,883 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 22:31:24,889 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 22:31:24,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:31:22" (1/3) ... [2020-10-26 22:31:24,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a530b43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:31:24, skipping insertion in model container [2020-10-26 22:31:24,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:23" (2/3) ... [2020-10-26 22:31:24,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a530b43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:31:24, skipping insertion in model container [2020-10-26 22:31:24,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:31:24" (3/3) ... [2020-10-26 22:31:24,894 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label19.c [2020-10-26 22:31:24,924 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 22:31:24,937 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 22:31:24,969 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 22:31:25,042 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 22:31:25,042 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 22:31:25,042 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 22:31:25,043 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 22:31:25,043 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 22:31:25,043 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 22:31:25,046 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 22:31:25,046 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 22:31:25,093 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-26 22:31:25,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-26 22:31:25,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:25,102 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] [2020-10-26 22:31:25,103 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:25,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:25,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1629572132, now seen corresponding path program 1 times [2020-10-26 22:31:25,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:25,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1445335072] [2020-10-26 22:31:25,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:25,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:25,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:25,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-26 22:31:25,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:25,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 592 [2020-10-26 22:31:25,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:25,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:31:25,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:31:25,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-26 22:31:25,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 22:31:26,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:26,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:26,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:26,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:26,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:26,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-26 22:31:26,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:26,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:26,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:26,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:31:26,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:31:26,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:31:26,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1445335072] [2020-10-26 22:31:26,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:31:26,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 22:31:26,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388311479] [2020-10-26 22:31:26,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 22:31:26,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:26,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 22:31:26,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 22:31:26,233 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-26 22:31:26,399 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-26 22:31:28,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:28,925 INFO L93 Difference]: Finished difference Result 586 states and 1013 transitions. [2020-10-26 22:31:28,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:31:28,928 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-10-26 22:31:28,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:28,943 INFO L225 Difference]: With dead ends: 586 [2020-10-26 22:31:28,943 INFO L226 Difference]: Without dead ends: 303 [2020-10-26 22:31:28,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:31:28,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-26 22:31:29,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 297. [2020-10-26 22:31:29,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-10-26 22:31:29,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 424 transitions. [2020-10-26 22:31:29,030 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 424 transitions. Word has length 36 [2020-10-26 22:31:29,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:29,031 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 424 transitions. [2020-10-26 22:31:29,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 22:31:29,031 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 424 transitions. [2020-10-26 22:31:29,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-26 22:31:29,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:29,037 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:29,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 22:31:29,038 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:29,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:29,039 INFO L82 PathProgramCache]: Analyzing trace with hash 742016028, now seen corresponding path program 1 times [2020-10-26 22:31:29,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:29,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [113288293] [2020-10-26 22:31:29,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:29,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:29,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:29,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:30,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:30,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-26 22:31:30,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:31:30,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1274 [2020-10-26 22:31:30,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:30,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 22:31:30,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:31:30,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-26 22:31:30,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:31:30,577 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-26 22:31:30,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:30,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:30,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:30,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:30,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:30,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:30,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 22:31:30,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:30,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:30,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:30,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:31:30,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:30,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:30,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:30,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:30,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:30,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:30,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 22:31:30,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:31:30,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-26 22:31:30,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:30,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:30,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:30,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-26 22:31:30,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:30,899 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 22:31:30,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [113288293] [2020-10-26 22:31:30,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:30,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:31:30,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927480539] [2020-10-26 22:31:30,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 22:31:30,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:30,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 22:31:30,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:31:30,910 INFO L87 Difference]: Start difference. First operand 297 states and 424 transitions. Second operand 6 states. [2020-10-26 22:31:33,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:33,042 INFO L93 Difference]: Finished difference Result 737 states and 1048 transitions. [2020-10-26 22:31:33,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 22:31:33,044 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2020-10-26 22:31:33,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:33,051 INFO L225 Difference]: With dead ends: 737 [2020-10-26 22:31:33,051 INFO L226 Difference]: Without dead ends: 446 [2020-10-26 22:31:33,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:33,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2020-10-26 22:31:33,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 444. [2020-10-26 22:31:33,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-26 22:31:33,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 600 transitions. [2020-10-26 22:31:33,093 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 600 transitions. Word has length 108 [2020-10-26 22:31:33,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:33,093 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 600 transitions. [2020-10-26 22:31:33,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 22:31:33,094 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 600 transitions. [2020-10-26 22:31:33,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-26 22:31:33,097 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:33,097 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:33,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 22:31:33,098 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:33,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:33,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1258466848, now seen corresponding path program 1 times [2020-10-26 22:31:33,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:33,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [98501948] [2020-10-26 22:31:33,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:33,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:33,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:33,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:33,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-26 22:31:33,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:31:33,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 509 [2020-10-26 22:31:33,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:33,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:33,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-26 22:31:33,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-26 22:31:33,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:33,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:33,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:33,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:33,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:33,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:33,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:33,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 22:31:33,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:33,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:33,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:33,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:33,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:33,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:33,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:33,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:34,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:34,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 22:31:34,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:34,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-26 22:31:34,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:34,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:34,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:34,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:31:34,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:31:34,192 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:31:34,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [98501948] [2020-10-26 22:31:34,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:34,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:31:34,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868789596] [2020-10-26 22:31:34,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:31:34,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:34,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:31:34,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:31:34,199 INFO L87 Difference]: Start difference. First operand 444 states and 600 transitions. Second operand 5 states. [2020-10-26 22:31:34,823 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-26 22:31:35,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:35,902 INFO L93 Difference]: Finished difference Result 764 states and 1057 transitions. [2020-10-26 22:31:35,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:31:35,904 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 115 [2020-10-26 22:31:35,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:35,909 INFO L225 Difference]: With dead ends: 764 [2020-10-26 22:31:35,909 INFO L226 Difference]: Without dead ends: 446 [2020-10-26 22:31:35,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:31:35,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2020-10-26 22:31:35,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 444. [2020-10-26 22:31:35,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-26 22:31:35,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 597 transitions. [2020-10-26 22:31:35,954 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 597 transitions. Word has length 115 [2020-10-26 22:31:35,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:35,955 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 597 transitions. [2020-10-26 22:31:35,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:31:35,956 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 597 transitions. [2020-10-26 22:31:35,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-26 22:31:35,959 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:35,959 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:35,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 22:31:35,960 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:35,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:35,961 INFO L82 PathProgramCache]: Analyzing trace with hash 420592668, now seen corresponding path program 1 times [2020-10-26 22:31:35,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:35,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1633719934] [2020-10-26 22:31:35,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:36,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:36,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:36,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:36,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-26 22:31:36,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:31:36,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 903 [2020-10-26 22:31:36,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:36,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:31:36,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:31:36,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-26 22:31:36,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:37,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:37,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:37,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:37,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:37,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:37,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:37,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 22:31:37,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:37,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:37,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:37,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:31:37,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:37,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:37,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:37,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:37,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-26 22:31:37,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:37,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-26 22:31:37,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:37,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:37,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:37,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-26 22:31:37,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:37,376 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:31:37,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1633719934] [2020-10-26 22:31:37,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:31:37,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 22:31:37,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766168195] [2020-10-26 22:31:37,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:31:37,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:37,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:31:37,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:37,380 INFO L87 Difference]: Start difference. First operand 444 states and 597 transitions. Second operand 7 states. [2020-10-26 22:31:39,015 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-26 22:31:40,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:40,246 INFO L93 Difference]: Finished difference Result 1049 states and 1479 transitions. [2020-10-26 22:31:40,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:31:40,248 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 117 [2020-10-26 22:31:40,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:40,253 INFO L225 Difference]: With dead ends: 1049 [2020-10-26 22:31:40,253 INFO L226 Difference]: Without dead ends: 754 [2020-10-26 22:31:40,255 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:31:40,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2020-10-26 22:31:40,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 742. [2020-10-26 22:31:40,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2020-10-26 22:31:40,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 914 transitions. [2020-10-26 22:31:40,287 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 914 transitions. Word has length 117 [2020-10-26 22:31:40,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:40,287 INFO L481 AbstractCegarLoop]: Abstraction has 742 states and 914 transitions. [2020-10-26 22:31:40,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:31:40,287 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 914 transitions. [2020-10-26 22:31:40,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-26 22:31:40,292 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:40,293 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:31:40,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 22:31:40,293 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:40,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:40,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1243614688, now seen corresponding path program 1 times [2020-10-26 22:31:40,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:40,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [922652212] [2020-10-26 22:31:40,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:40,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:40,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:40,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:40,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:41,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:42,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:42,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-26 22:31:42,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:31:42,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1851 [2020-10-26 22:31:42,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:42,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-26 22:31:42,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:31:42,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-26 22:31:42,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:42,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:42,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:42,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:42,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:42,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:42,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 22:31:42,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:42,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:42,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:42,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:31:42,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:31:42,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:42,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:42,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:42,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:42,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:31:42,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:31:42,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-26 22:31:42,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:42,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:42,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:42,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-26 22:31:42,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:42,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:31:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:42,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:42,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:43,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:43,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 22:31:43,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:31:43,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-26 22:31:43,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:43,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 22:31:43,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:43,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-26 22:31:43,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-26 22:31:43,174 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-26 22:31:43,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [922652212] [2020-10-26 22:31:43,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:43,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:31:43,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738264926] [2020-10-26 22:31:43,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:31:43,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:43,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:31:43,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:31:43,177 INFO L87 Difference]: Start difference. First operand 742 states and 914 transitions. Second operand 8 states. [2020-10-26 22:31:43,397 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-26 22:31:44,267 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-10-26 22:31:45,106 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-26 22:31:47,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:47,311 INFO L93 Difference]: Finished difference Result 985 states and 1212 transitions. [2020-10-26 22:31:47,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-26 22:31:47,312 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 178 [2020-10-26 22:31:47,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:47,324 INFO L225 Difference]: With dead ends: 985 [2020-10-26 22:31:47,324 INFO L226 Difference]: Without dead ends: 982 [2020-10-26 22:31:47,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-10-26 22:31:47,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2020-10-26 22:31:47,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 897. [2020-10-26 22:31:47,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 897 states. [2020-10-26 22:31:47,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1098 transitions. [2020-10-26 22:31:47,383 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1098 transitions. Word has length 178 [2020-10-26 22:31:47,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:47,384 INFO L481 AbstractCegarLoop]: Abstraction has 897 states and 1098 transitions. [2020-10-26 22:31:47,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:31:47,384 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1098 transitions. [2020-10-26 22:31:47,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-26 22:31:47,391 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:47,391 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:47,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 22:31:47,392 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:47,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:47,394 INFO L82 PathProgramCache]: Analyzing trace with hash 2128129752, now seen corresponding path program 1 times [2020-10-26 22:31:47,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:47,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [287087065] [2020-10-26 22:31:47,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:47,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:47,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:47,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:48,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:48,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-26 22:31:48,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:31:48,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 672 [2020-10-26 22:31:48,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:48,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:48,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:31:48,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-26 22:31:48,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:48,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:48,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:48,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:48,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:48,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:48,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 22:31:48,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:48,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:48,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:48,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:48,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:48,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:48,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:48,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:48,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:31:48,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:48,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-26 22:31:48,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:48,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:48,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:48,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:31:48,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:48,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:31:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:48,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:48,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:48,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-26 22:31:48,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:48,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-26 22:31:48,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:48,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:48,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:48,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-26 22:31:48,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:31:48,720 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:31:48,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [287087065] [2020-10-26 22:31:48,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:48,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:31:48,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120303409] [2020-10-26 22:31:48,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:31:48,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:48,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:31:48,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:48,730 INFO L87 Difference]: Start difference. First operand 897 states and 1098 transitions. Second operand 7 states. [2020-10-26 22:31:49,326 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-26 22:31:51,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:51,631 INFO L93 Difference]: Finished difference Result 1963 states and 2531 transitions. [2020-10-26 22:31:51,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:31:51,633 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 187 [2020-10-26 22:31:51,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:51,640 INFO L225 Difference]: With dead ends: 1963 [2020-10-26 22:31:51,640 INFO L226 Difference]: Without dead ends: 1215 [2020-10-26 22:31:51,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:31:51,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215 states. [2020-10-26 22:31:51,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215 to 1052. [2020-10-26 22:31:51,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2020-10-26 22:31:51,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1276 transitions. [2020-10-26 22:31:51,682 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1276 transitions. Word has length 187 [2020-10-26 22:31:51,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:51,683 INFO L481 AbstractCegarLoop]: Abstraction has 1052 states and 1276 transitions. [2020-10-26 22:31:51,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:31:51,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1276 transitions. [2020-10-26 22:31:51,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-10-26 22:31:51,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:51,687 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:31:51,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 22:31:51,688 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:51,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:51,688 INFO L82 PathProgramCache]: Analyzing trace with hash -391656032, now seen corresponding path program 1 times [2020-10-26 22:31:51,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:51,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1902805421] [2020-10-26 22:31:51,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:51,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:51,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:53,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:53,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-10-26 22:31:53,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:31:53,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1241 [2020-10-26 22:31:53,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:53,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:53,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:31:53,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-26 22:31:53,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:53,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:53,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:53,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:53,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:53,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:53,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:53,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 22:31:53,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:53,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:53,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:53,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:53,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:53,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:53,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:53,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:53,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:53,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:31:53,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:53,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-26 22:31:53,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:53,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:53,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:53,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:31:53,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:53,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:31:53,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:53,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:53,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:53,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-26 22:31:53,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:53,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-26 22:31:53,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:53,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:53,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:53,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-26 22:31:53,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:53,692 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:31:53,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1902805421] [2020-10-26 22:31:53,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:53,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:31:53,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458773468] [2020-10-26 22:31:53,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:31:53,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:53,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:31:53,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:53,697 INFO L87 Difference]: Start difference. First operand 1052 states and 1276 transitions. Second operand 7 states. [2020-10-26 22:31:54,582 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-26 22:31:56,273 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-26 22:31:56,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:56,898 INFO L93 Difference]: Finished difference Result 2569 states and 3231 transitions. [2020-10-26 22:31:56,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:31:56,902 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 232 [2020-10-26 22:31:56,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:56,914 INFO L225 Difference]: With dead ends: 2569 [2020-10-26 22:31:56,915 INFO L226 Difference]: Without dead ends: 1666 [2020-10-26 22:31:56,918 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:31:56,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2020-10-26 22:31:56,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 1654. [2020-10-26 22:31:56,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1654 states. [2020-10-26 22:31:56,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 1990 transitions. [2020-10-26 22:31:56,982 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 1990 transitions. Word has length 232 [2020-10-26 22:31:56,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:56,983 INFO L481 AbstractCegarLoop]: Abstraction has 1654 states and 1990 transitions. [2020-10-26 22:31:56,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:31:56,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 1990 transitions. [2020-10-26 22:31:56,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-10-26 22:31:56,988 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:56,989 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:31:56,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 22:31:56,989 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:56,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:56,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1704388172, now seen corresponding path program 1 times [2020-10-26 22:31:56,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:56,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1394112411] [2020-10-26 22:31:56,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:57,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:57,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:57,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:57,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-10-26 22:31:57,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:57,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-10-26 22:31:57,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:57,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:57,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-10-26 22:31:57,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 22:31:57,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:57,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:57,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:57,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:57,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:57,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:57,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:31:57,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:57,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:57,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:57,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:57,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:57,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:57,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:57,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:57,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-26 22:31:57,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:57,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-26 22:31:57,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:57,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:57,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:57,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:57,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:57,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 22:31:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:57,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:57,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:57,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-26 22:31:57,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:57,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-26 22:31:57,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:57,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:57,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:57,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-26 22:31:57,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:57,870 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2020-10-26 22:31:57,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1394112411] [2020-10-26 22:31:57,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:57,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:31:57,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363625218] [2020-10-26 22:31:57,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:31:57,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:57,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:31:57,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:31:57,873 INFO L87 Difference]: Start difference. First operand 1654 states and 1990 transitions. Second operand 5 states. [2020-10-26 22:31:58,905 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-26 22:32:00,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:00,406 INFO L93 Difference]: Finished difference Result 3741 states and 4634 transitions. [2020-10-26 22:32:00,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:32:00,416 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 254 [2020-10-26 22:32:00,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:00,431 INFO L225 Difference]: With dead ends: 3741 [2020-10-26 22:32:00,431 INFO L226 Difference]: Without dead ends: 2236 [2020-10-26 22:32:00,436 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:32:00,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states. [2020-10-26 22:32:00,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 2087. [2020-10-26 22:32:00,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2087 states. [2020-10-26 22:32:00,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2087 states to 2087 states and 2496 transitions. [2020-10-26 22:32:00,518 INFO L78 Accepts]: Start accepts. Automaton has 2087 states and 2496 transitions. Word has length 254 [2020-10-26 22:32:00,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:00,518 INFO L481 AbstractCegarLoop]: Abstraction has 2087 states and 2496 transitions. [2020-10-26 22:32:00,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:32:00,519 INFO L276 IsEmpty]: Start isEmpty. Operand 2087 states and 2496 transitions. [2020-10-26 22:32:00,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2020-10-26 22:32:00,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:00,530 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:00,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 22:32:00,531 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:00,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:00,531 INFO L82 PathProgramCache]: Analyzing trace with hash -144474920, now seen corresponding path program 1 times [2020-10-26 22:32:00,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:00,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1779234642] [2020-10-26 22:32:00,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:00,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:00,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:00,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:00,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:02,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:03,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:05,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:05,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 375 [2020-10-26 22:32:05,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 22:32:05,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-26 22:32:05,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:05,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:05,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:32:05,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:32:05,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:05,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:05,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:05,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:05,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:05,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:05,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:32:05,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:05,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:05,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:05,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:05,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:05,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:05,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:05,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:05,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:05,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:05,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:05,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-26 22:32:05,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:05,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:05,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:05,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:32:05,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:06,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:06,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:06,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:06,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:06,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:06,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-26 22:32:06,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:06,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:06,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:06,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:32:06,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:06,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-26 22:32:06,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:06,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:06,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:06,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-26 22:32:06,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:06,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-26 22:32:06,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:06,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:06,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-10-26 22:32:06,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:06,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:06,453 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 167 proven. 81 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-26 22:32:06,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1779234642] [2020-10-26 22:32:06,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:06,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:06,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748953350] [2020-10-26 22:32:06,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:06,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:06,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:06,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:06,457 INFO L87 Difference]: Start difference. First operand 2087 states and 2496 transitions. Second operand 7 states. [2020-10-26 22:32:08,772 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-26 22:32:09,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:09,207 INFO L93 Difference]: Finished difference Result 4496 states and 5575 transitions. [2020-10-26 22:32:09,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:32:09,208 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 359 [2020-10-26 22:32:09,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:09,223 INFO L225 Difference]: With dead ends: 4496 [2020-10-26 22:32:09,224 INFO L226 Difference]: Without dead ends: 2558 [2020-10-26 22:32:09,230 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:32:09,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2558 states. [2020-10-26 22:32:09,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2558 to 2538. [2020-10-26 22:32:09,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2538 states. [2020-10-26 22:32:09,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2538 states to 2538 states and 3082 transitions. [2020-10-26 22:32:09,319 INFO L78 Accepts]: Start accepts. Automaton has 2538 states and 3082 transitions. Word has length 359 [2020-10-26 22:32:09,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:09,320 INFO L481 AbstractCegarLoop]: Abstraction has 2538 states and 3082 transitions. [2020-10-26 22:32:09,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:09,320 INFO L276 IsEmpty]: Start isEmpty. Operand 2538 states and 3082 transitions. [2020-10-26 22:32:09,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2020-10-26 22:32:09,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:09,331 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:09,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 22:32:09,331 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:09,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:09,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1751140844, now seen corresponding path program 1 times [2020-10-26 22:32:09,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:09,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2028961632] [2020-10-26 22:32:09,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:09,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:09,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:10,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:11,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:11,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 378 [2020-10-26 22:32:11,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:11,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2256 [2020-10-26 22:32:11,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:11,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:11,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-26 22:32:11,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-26 22:32:11,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:11,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:11,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:11,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:11,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:11,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:11,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:11,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:32:11,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:11,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:11,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:11,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:11,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:11,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:11,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:11,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:11,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:11,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:11,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:11,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-26 22:32:11,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:11,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:11,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:11,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:11,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:11,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:11,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:12,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:12,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-26 22:32:12,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:12,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-26 22:32:12,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:12,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:12,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:12,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-26 22:32:12,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:12,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-26 22:32:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:12,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:12,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:12,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-26 22:32:12,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:12,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-26 22:32:12,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:12,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:12,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:12,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-26 22:32:12,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:32:12,520 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 283 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-26 22:32:12,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2028961632] [2020-10-26 22:32:12,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:12,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:12,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274279738] [2020-10-26 22:32:12,522 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:12,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:12,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:12,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:12,523 INFO L87 Difference]: Start difference. First operand 2538 states and 3082 transitions. Second operand 7 states. [2020-10-26 22:32:13,371 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-26 22:32:15,753 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-26 22:32:15,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:15,872 INFO L93 Difference]: Finished difference Result 6089 states and 7597 transitions. [2020-10-26 22:32:15,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:32:15,873 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 362 [2020-10-26 22:32:15,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:15,915 INFO L225 Difference]: With dead ends: 6089 [2020-10-26 22:32:15,915 INFO L226 Difference]: Without dead ends: 3700 [2020-10-26 22:32:15,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:32:15,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3700 states. [2020-10-26 22:32:16,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3700 to 3408. [2020-10-26 22:32:16,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3408 states. [2020-10-26 22:32:16,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3408 states to 3408 states and 4238 transitions. [2020-10-26 22:32:16,036 INFO L78 Accepts]: Start accepts. Automaton has 3408 states and 4238 transitions. Word has length 362 [2020-10-26 22:32:16,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:16,037 INFO L481 AbstractCegarLoop]: Abstraction has 3408 states and 4238 transitions. [2020-10-26 22:32:16,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:16,037 INFO L276 IsEmpty]: Start isEmpty. Operand 3408 states and 4238 transitions. [2020-10-26 22:32:16,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2020-10-26 22:32:16,053 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:16,054 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:16,054 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 22:32:16,054 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:16,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:16,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1047229828, now seen corresponding path program 1 times [2020-10-26 22:32:16,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:16,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1789358835] [2020-10-26 22:32:16,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:16,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:16,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:17,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:19,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:19,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 417 [2020-10-26 22:32:19,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:19,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2902 [2020-10-26 22:32:19,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:19,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:19,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 251 [2020-10-26 22:32:19,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-26 22:32:19,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:19,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:19,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:19,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:19,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:19,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:19,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 22:32:19,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:19,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:19,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:19,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:19,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:32:19,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:19,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:19,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:19,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-26 22:32:19,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:19,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 22:32:19,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:19,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:19,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:19,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:19,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:19,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 22:32:19,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:19,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:19,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:19,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-26 22:32:19,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:19,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-26 22:32:19,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:19,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:19,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:19,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-26 22:32:19,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:19,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-26 22:32:19,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:19,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:19,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:19,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-26 22:32:19,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:19,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-26 22:32:19,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:19,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:19,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:19,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-26 22:32:19,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:19,984 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 311 proven. 2 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2020-10-26 22:32:19,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1789358835] [2020-10-26 22:32:19,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:19,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:19,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751742342] [2020-10-26 22:32:19,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:19,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:19,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:19,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:19,989 INFO L87 Difference]: Start difference. First operand 3408 states and 4238 transitions. Second operand 7 states. [2020-10-26 22:32:21,269 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-10-26 22:32:21,530 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-10-26 22:32:23,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:23,055 INFO L93 Difference]: Finished difference Result 6961 states and 8705 transitions. [2020-10-26 22:32:23,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 22:32:23,056 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 401 [2020-10-26 22:32:23,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:23,074 INFO L225 Difference]: With dead ends: 6961 [2020-10-26 22:32:23,075 INFO L226 Difference]: Without dead ends: 3702 [2020-10-26 22:32:23,083 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:32:23,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3702 states. [2020-10-26 22:32:23,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3702 to 3410. [2020-10-26 22:32:23,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3410 states. [2020-10-26 22:32:23,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3410 states to 3410 states and 4243 transitions. [2020-10-26 22:32:23,187 INFO L78 Accepts]: Start accepts. Automaton has 3410 states and 4243 transitions. Word has length 401 [2020-10-26 22:32:23,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:23,188 INFO L481 AbstractCegarLoop]: Abstraction has 3410 states and 4243 transitions. [2020-10-26 22:32:23,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:23,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3410 states and 4243 transitions. [2020-10-26 22:32:23,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2020-10-26 22:32:23,199 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:23,200 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:23,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 22:32:23,200 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:23,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:23,201 INFO L82 PathProgramCache]: Analyzing trace with hash 25295228, now seen corresponding path program 1 times [2020-10-26 22:32:23,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:23,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [812938400] [2020-10-26 22:32:23,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:23,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:23,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:23,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:23,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:25,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:26,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:28,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:28,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 434 [2020-10-26 22:32:28,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 22:32:28,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-26 22:32:28,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:28,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-26 22:32:28,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:32:28,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-26 22:32:28,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:28,582 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-26 22:32:28,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:28,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:28,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:28,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:28,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:28,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:32:28,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:28,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:28,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:28,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:28,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:28,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:28,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:28,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:28,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:28,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:28,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:28,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-26 22:32:28,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:28,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:28,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:28,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:32:28,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:28,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:28,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:28,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:28,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:28,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 22:32:28,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:28,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-26 22:32:28,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:28,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 22:32:28,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:28,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 22:32:28,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:29,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2020-10-26 22:32:29,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:29,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:29,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:29,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:29,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-26 22:32:29,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:29,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-26 22:32:29,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:29,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:29,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:29,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-26 22:32:29,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:29,560 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 312 proven. 125 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 22:32:29,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [812938400] [2020-10-26 22:32:29,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:29,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-26 22:32:29,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583900694] [2020-10-26 22:32:29,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-26 22:32:29,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:29,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-26 22:32:29,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:32:29,563 INFO L87 Difference]: Start difference. First operand 3410 states and 4243 transitions. Second operand 10 states. [2020-10-26 22:32:29,724 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-26 22:32:31,654 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-26 22:32:32,676 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-26 22:32:34,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:34,341 INFO L93 Difference]: Finished difference Result 8443 states and 10719 transitions. [2020-10-26 22:32:34,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-26 22:32:34,342 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 418 [2020-10-26 22:32:34,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:34,367 INFO L225 Difference]: With dead ends: 8443 [2020-10-26 22:32:34,368 INFO L226 Difference]: Without dead ends: 5162 [2020-10-26 22:32:34,378 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2020-10-26 22:32:34,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5162 states. [2020-10-26 22:32:34,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5162 to 4723. [2020-10-26 22:32:34,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4723 states. [2020-10-26 22:32:34,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4723 states to 4723 states and 6060 transitions. [2020-10-26 22:32:34,534 INFO L78 Accepts]: Start accepts. Automaton has 4723 states and 6060 transitions. Word has length 418 [2020-10-26 22:32:34,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:34,535 INFO L481 AbstractCegarLoop]: Abstraction has 4723 states and 6060 transitions. [2020-10-26 22:32:34,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-26 22:32:34,536 INFO L276 IsEmpty]: Start isEmpty. Operand 4723 states and 6060 transitions. [2020-10-26 22:32:34,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2020-10-26 22:32:34,547 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:34,547 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:34,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 22:32:34,548 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:34,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:34,548 INFO L82 PathProgramCache]: Analyzing trace with hash 393707572, now seen corresponding path program 1 times [2020-10-26 22:32:34,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:34,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1385753570] [2020-10-26 22:32:34,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:34,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:34,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:35,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:35,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:35,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 450 [2020-10-26 22:32:35,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:35,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 551 [2020-10-26 22:32:35,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:35,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:35,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 412 [2020-10-26 22:32:35,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-26 22:32:35,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:35,359 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-26 22:32:35,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:35,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:35,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:35,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:35,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:35,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:32:35,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:35,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:35,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:35,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:35,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:35,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:35,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:35,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:35,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-26 22:32:35,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:35,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-26 22:32:35,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:35,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:35,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:35,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:35,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:35,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 22:32:35,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:35,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:35,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:35,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-26 22:32:35,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:35,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 22:32:35,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:35,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:35,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:35,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:35,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:35,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2020-10-26 22:32:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:35,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:35,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:35,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-26 22:32:35,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:35,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-26 22:32:35,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:35,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:35,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:35,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-26 22:32:35,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:35,764 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 87 proven. 3 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2020-10-26 22:32:35,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1385753570] [2020-10-26 22:32:35,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:35,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:32:35,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823201473] [2020-10-26 22:32:35,766 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:32:35,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:35,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:32:35,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:32:35,767 INFO L87 Difference]: Start difference. First operand 4723 states and 6060 transitions. Second operand 5 states. [2020-10-26 22:32:37,440 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-26 22:32:37,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:37,482 INFO L93 Difference]: Finished difference Result 9159 states and 11807 transitions. [2020-10-26 22:32:37,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:32:37,483 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 434 [2020-10-26 22:32:37,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:37,485 INFO L225 Difference]: With dead ends: 9159 [2020-10-26 22:32:37,485 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 22:32:37,503 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:32:37,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 22:32:37,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 22:32:37,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 22:32:37,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 22:32:37,503 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 434 [2020-10-26 22:32:37,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:37,504 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 22:32:37,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:32:37,504 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 22:32:37,504 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 22:32:37,504 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 22:32:37,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 22:32:37,755 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 152 [2020-10-26 22:32:38,612 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 152 [2020-10-26 22:32:38,862 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 28 [2020-10-26 22:32:39,334 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 40 [2020-10-26 22:32:40,902 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 254 DAG size of output: 52 [2020-10-26 22:32:41,584 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 35 [2020-10-26 22:32:41,689 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-26 22:32:42,205 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 40 [2020-10-26 22:32:42,211 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 22:32:42,211 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 22:32:42,211 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 22:32:42,212 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 22:32:42,212 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:32:42,212 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-26 22:32:42,212 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:32:42,212 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-26 22:32:42,212 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-26 22:32:42,212 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-26 22:32:42,213 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-26 22:32:42,213 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-26 22:32:42,213 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-26 22:32:42,213 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-26 22:32:42,213 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-26 22:32:42,213 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-26 22:32:42,213 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-26 22:32:42,213 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-26 22:32:42,214 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-26 22:32:42,214 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-26 22:32:42,214 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,214 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,214 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,214 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,214 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,214 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,214 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-26 22:32:42,214 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-26 22:32:42,215 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-26 22:32:42,215 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-26 22:32:42,215 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-26 22:32:42,215 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-26 22:32:42,215 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-26 22:32:42,215 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-26 22:32:42,215 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-26 22:32:42,215 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-26 22:32:42,215 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-26 22:32:42,215 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,215 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,215 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,215 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,215 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,216 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-26 22:32:42,216 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-26 22:32:42,216 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-26 22:32:42,216 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-26 22:32:42,216 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-26 22:32:42,216 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-26 22:32:42,216 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-26 22:32:42,216 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-26 22:32:42,216 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-26 22:32:42,216 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-26 22:32:42,216 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-26 22:32:42,217 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-26 22:32:42,217 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-26 22:32:42,217 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-26 22:32:42,217 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,217 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,217 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,217 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,217 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,217 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-26 22:32:42,217 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-26 22:32:42,217 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-26 22:32:42,218 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-26 22:32:42,218 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-26 22:32:42,218 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-26 22:32:42,218 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-26 22:32:42,218 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-26 22:32:42,218 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-26 22:32:42,218 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-26 22:32:42,218 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,218 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,218 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,219 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,219 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,219 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-26 22:32:42,219 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-26 22:32:42,219 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-26 22:32:42,219 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-26 22:32:42,219 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-26 22:32:42,219 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-26 22:32:42,219 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-26 22:32:42,219 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-26 22:32:42,220 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-26 22:32:42,220 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-26 22:32:42,220 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-26 22:32:42,220 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-26 22:32:42,220 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-26 22:32:42,220 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,220 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,220 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,220 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,220 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,221 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-26 22:32:42,221 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-26 22:32:42,221 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-26 22:32:42,221 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-26 22:32:42,221 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-26 22:32:42,221 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,221 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,221 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-26 22:32:42,221 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-26 22:32:42,221 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-26 22:32:42,222 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-26 22:32:42,222 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,222 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,222 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,222 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,222 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,222 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-26 22:32:42,222 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-26 22:32:42,222 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-26 22:32:42,222 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-26 22:32:42,222 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-26 22:32:42,223 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-26 22:32:42,223 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-26 22:32:42,223 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-26 22:32:42,223 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-26 22:32:42,223 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-26 22:32:42,223 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-26 22:32:42,223 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-26 22:32:42,223 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-26 22:32:42,223 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,223 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,223 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,223 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,223 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-26 22:32:42,223 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,223 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,223 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-26 22:32:42,224 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-26 22:32:42,224 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-26 22:32:42,224 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-26 22:32:42,224 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-26 22:32:42,224 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-26 22:32:42,224 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-26 22:32:42,224 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-26 22:32:42,224 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-26 22:32:42,224 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-26 22:32:42,224 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-26 22:32:42,224 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-26 22:32:42,224 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-26 22:32:42,224 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,224 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,224 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,225 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,225 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,225 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,225 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-26 22:32:42,225 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse1 (= ~a1~0 |old(~a1~0)|)) (.cse2 (= ~a10~0 |old(~a10~0)|))) (let ((.cse0 (and .cse1 (= ~a19~0 |old(~a19~0)|) .cse2))) (and (or (not (<= 10 |old(~a19~0)|)) .cse0) (or (not (<= (+ |old(~a1~0)| 551894) 0)) (not (= 6 |old(~a19~0)|)) (and .cse1 (= ~a19~0 6) .cse2)) (or (and (= 14 ~a4~0) (not (< 0 |old(~a10~0)|)) (= ~a12~0 0) (not (<= (+ |old(~a10~0)| 1) 0)) (not (<= 0 (+ |old(~a1~0)| 12)))) .cse0) (or (and (<= 9 ~a19~0) (<= ~a19~0 9) .cse1 .cse2) (not (= 9 |old(~a19~0)|)))))) [2020-10-26 22:32:42,225 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-26 22:32:42,225 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-26 22:32:42,225 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-26 22:32:42,226 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-26 22:32:42,226 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-26 22:32:42,226 INFO L270 CegarLoopResult]: At program point L93(line 93) the Hoare annotation is: (and (not (<= 10 |old(~a19~0)|)) (= 14 ~a4~0) (not (< 0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (= ~a12~0 0) (or (not (<= (+ |old(~a1~0)| 551894) 0)) (not (= 6 |old(~a19~0)|))) (not (<= (+ |old(~a10~0)| 1) 0)) (not (<= 0 (+ |old(~a1~0)| 12)))) [2020-10-26 22:32:42,226 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-26 22:32:42,226 INFO L274 CegarLoopResult]: For program point L93-1(line 93) no Hoare annotation was computed. [2020-10-26 22:32:42,226 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-26 22:32:42,226 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-26 22:32:42,226 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-26 22:32:42,226 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-26 22:32:42,227 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-26 22:32:42,227 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-26 22:32:42,227 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,227 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,227 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,227 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,227 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,227 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,227 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-26 22:32:42,227 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-26 22:32:42,228 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-26 22:32:42,228 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-26 22:32:42,228 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-26 22:32:42,228 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-26 22:32:42,228 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-26 22:32:42,228 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-26 22:32:42,228 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-26 22:32:42,228 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-26 22:32:42,228 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-26 22:32:42,228 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-26 22:32:42,228 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-26 22:32:42,229 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,229 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,229 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,229 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,229 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,229 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,229 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-26 22:32:42,229 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-26 22:32:42,229 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-26 22:32:42,229 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-26 22:32:42,229 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-26 22:32:42,230 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-26 22:32:42,230 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-26 22:32:42,230 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-26 22:32:42,230 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-26 22:32:42,230 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-26 22:32:42,230 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-26 22:32:42,230 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-26 22:32:42,230 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,230 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,230 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,230 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,230 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,231 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:42,231 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:32:42,231 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 14 ~a4~0) (= ~a10~0 0) (= ~a12~0 0) (= ~a19~0 9) (= 23 ~a1~0)) [2020-10-26 22:32:42,231 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 22:32:42,231 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:32:42,231 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) (<= ~a19~0 9) (= 23 ~a1~0) (= ~a10~0 |old(~a10~0)|)) (not (= 14 ~a4~0)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (not (= ~a12~0 0))) [2020-10-26 22:32:42,231 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:32:42,231 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (or (< 0 ~a10~0) (<= 0 (+ ~a1~0 12)) (not (= 9 |old(~a19~0)|)) (<= 10 ~a19~0) (and (<= (+ ~a1~0 551894) 0) (= ~a19~0 6)) (not (= 14 ~a4~0)) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (not (= ~a12~0 0)) (<= (+ ~a10~0 1) 0)) [2020-10-26 22:32:42,232 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-26 22:32:42,232 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-26 22:32:42,232 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (or (< 0 ~a10~0) (<= 0 (+ ~a1~0 12)) (not (= 9 |old(~a19~0)|)) (<= 10 ~a19~0) (and (<= (+ ~a1~0 551894) 0) (= ~a19~0 6)) (not (= 14 ~a4~0)) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (not (= ~a12~0 0)) (<= (+ ~a10~0 1) 0)) [2020-10-26 22:32:42,232 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:32:42,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:32:42 BoogieIcfgContainer [2020-10-26 22:32:42,260 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 22:32:42,262 INFO L168 Benchmark]: Toolchain (without parser) took 80024.20 ms. Allocated memory was 166.7 MB in the beginning and 1.0 GB in the end (delta: 875.6 MB). Free memory was 141.5 MB in the beginning and 401.1 MB in the end (delta: -259.6 MB). Peak memory consumption was 616.7 MB. Max. memory is 8.0 GB. [2020-10-26 22:32:42,262 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 125.8 MB. Free memory was 100.8 MB in the beginning and 100.7 MB in the end (delta: 121.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 22:32:42,263 INFO L168 Benchmark]: CACSL2BoogieTranslator took 781.32 ms. Allocated memory is still 166.7 MB. Free memory was 140.9 MB in the beginning and 145.7 MB in the end (delta: -4.8 MB). Peak memory consumption was 29.1 MB. Max. memory is 8.0 GB. [2020-10-26 22:32:42,264 INFO L168 Benchmark]: Boogie Preprocessor took 120.64 ms. Allocated memory is still 166.7 MB. Free memory was 145.7 MB in the beginning and 141.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-26 22:32:42,265 INFO L168 Benchmark]: RCFGBuilder took 1732.01 ms. Allocated memory is still 166.7 MB. Free memory was 141.1 MB in the beginning and 133.0 MB in the end (delta: 8.1 MB). Peak memory consumption was 51.0 MB. Max. memory is 8.0 GB. [2020-10-26 22:32:42,265 INFO L168 Benchmark]: TraceAbstraction took 77377.58 ms. Allocated memory was 166.7 MB in the beginning and 1.0 GB in the end (delta: 875.6 MB). Free memory was 132.4 MB in the beginning and 401.1 MB in the end (delta: -268.7 MB). Peak memory consumption was 606.9 MB. Max. memory is 8.0 GB. [2020-10-26 22:32:42,269 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 125.8 MB. Free memory was 100.8 MB in the beginning and 100.7 MB in the end (delta: 121.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 781.32 ms. Allocated memory is still 166.7 MB. Free memory was 140.9 MB in the beginning and 145.7 MB in the end (delta: -4.8 MB). Peak memory consumption was 29.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 120.64 ms. Allocated memory is still 166.7 MB. Free memory was 145.7 MB in the beginning and 141.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1732.01 ms. Allocated memory is still 166.7 MB. Free memory was 141.1 MB in the beginning and 133.0 MB in the end (delta: 8.1 MB). Peak memory consumption was 51.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 77377.58 ms. Allocated memory was 166.7 MB in the beginning and 1.0 GB in the end (delta: 875.6 MB). Free memory was 132.4 MB in the beginning and 401.1 MB in the end (delta: -268.7 MB). Peak memory consumption was 606.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: (((((((((0 < a10 || 0 <= a1 + 12) || !(9 == \old(a19))) || 10 <= a19) || (a1 + 551894 <= 0 && a19 == 6)) || !(14 == a4)) || a19 == 9) || !(0 == \old(a10))) || !(23 == \old(a1))) || !(a12 == 0)) || a10 + 1 <= 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 72.4s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 38.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 353 SDtfs, 5904 SDslu, 472 SDs, 0 SdLazy, 11781 SolverSat, 1800 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 222 GetRequests, 103 SyntacticMatches, 6 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4723occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 13 MinimizatonAttempts, 1474 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 351 PreInvPairs, 419 NumberOfFragments, 342 HoareAnnotationTreeSize, 351 FomulaSimplifications, 27872 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 10682 FormulaSimplificationTreeSizeReductionInter, 3.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 31.0s InterpolantComputationTime, 3201 NumberOfCodeBlocks, 3201 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 3188 ConstructedInterpolants, 0 QuantifiedInterpolants, 2320474 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 2 PerfectInterpolantSequences, 2360/2667 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...