/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label06.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 11:57:46,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 11:57:46,164 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 11:57:46,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 11:57:46,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 11:57:46,239 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 11:57:46,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 11:57:46,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 11:57:46,250 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 11:57:46,258 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 11:57:46,259 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 11:57:46,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 11:57:46,261 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 11:57:46,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 11:57:46,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 11:57:46,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 11:57:46,270 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 11:57:46,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 11:57:46,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 11:57:46,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 11:57:46,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 11:57:46,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 11:57:46,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 11:57:46,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 11:57:46,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 11:57:46,301 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 11:57:46,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 11:57:46,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 11:57:46,303 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 11:57:46,304 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 11:57:46,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 11:57:46,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 11:57:46,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 11:57:46,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 11:57:46,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 11:57:46,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 11:57:46,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 11:57:46,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 11:57:46,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 11:57:46,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 11:57:46,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 11:57:46,314 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 11:57:46,384 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 11:57:46,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 11:57:46,386 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 11:57:46,386 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 11:57:46,387 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 11:57:46,387 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 11:57:46,387 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 11:57:46,387 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 11:57:46,387 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 11:57:46,388 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 11:57:46,388 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 11:57:46,388 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 11:57:46,388 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 11:57:46,388 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 11:57:46,389 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 11:57:46,389 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 11:57:46,389 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 11:57:46,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 11:57:46,390 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 11:57:46,390 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 11:57:46,390 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 11:57:46,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 11:57:46,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 11:57:46,391 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 11:57:46,391 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 11:57:46,391 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 11:57:46,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 11:57:46,391 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 11:57:46,392 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 11:57:46,392 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 11:57:46,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 11:57:46,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 11:57:46,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 11:57:46,802 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 11:57:46,804 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 11:57:46,805 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label06.c [2020-10-28 11:57:46,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ee304bb3/0e76702e506a4bc5a3dcf367e0c496a1/FLAG884027cc0 [2020-10-28 11:57:47,763 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 11:57:47,764 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label06.c [2020-10-28 11:57:47,782 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ee304bb3/0e76702e506a4bc5a3dcf367e0c496a1/FLAG884027cc0 [2020-10-28 11:57:47,947 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ee304bb3/0e76702e506a4bc5a3dcf367e0c496a1 [2020-10-28 11:57:47,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 11:57:47,966 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 11:57:47,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 11:57:47,971 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 11:57:47,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 11:57:47,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:57:47" (1/1) ... [2020-10-28 11:57:47,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a796cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:47, skipping insertion in model container [2020-10-28 11:57:47,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:57:47" (1/1) ... [2020-10-28 11:57:47,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 11:57:48,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 11:57:48,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 11:57:48,577 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 11:57:48,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 11:57:48,829 INFO L208 MainTranslator]: Completed translation [2020-10-28 11:57:48,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:48 WrapperNode [2020-10-28 11:57:48,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 11:57:48,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 11:57:48,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 11:57:48,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 11:57:48,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:48" (1/1) ... [2020-10-28 11:57:48,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:48" (1/1) ... [2020-10-28 11:57:48,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:48" (1/1) ... [2020-10-28 11:57:48,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:48" (1/1) ... [2020-10-28 11:57:48,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:48" (1/1) ... [2020-10-28 11:57:48,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:48" (1/1) ... [2020-10-28 11:57:48,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:48" (1/1) ... [2020-10-28 11:57:48,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 11:57:48,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 11:57:48,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 11:57:48,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 11:57:48,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 11:57:49,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 11:57:49,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 11:57:49,077 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 11:57:49,077 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 11:57:49,077 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 11:57:49,078 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 11:57:49,078 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 11:57:49,079 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 11:57:49,079 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 11:57:49,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 11:57:49,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 11:57:49,080 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 11:57:49,080 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 11:57:49,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 11:57:49,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 11:57:49,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 11:57:49,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 11:57:49,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 11:57:49,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 11:57:50,589 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 11:57:50,589 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 11:57:50,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:57:50 BoogieIcfgContainer [2020-10-28 11:57:50,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 11:57:50,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 11:57:50,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 11:57:50,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 11:57:50,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:57:47" (1/3) ... [2020-10-28 11:57:50,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db91e62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:57:50, skipping insertion in model container [2020-10-28 11:57:50,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:48" (2/3) ... [2020-10-28 11:57:50,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db91e62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:57:50, skipping insertion in model container [2020-10-28 11:57:50,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:57:50" (3/3) ... [2020-10-28 11:57:50,602 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label06.c [2020-10-28 11:57:50,616 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 11:57:50,622 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 11:57:50,637 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 11:57:50,670 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 11:57:50,670 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 11:57:50,670 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 11:57:50,670 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 11:57:50,670 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 11:57:50,671 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 11:57:50,671 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 11:57:50,671 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 11:57:50,697 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-28 11:57:50,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-28 11:57:50,704 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:50,705 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] [2020-10-28 11:57:50,706 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:50,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:50,712 INFO L82 PathProgramCache]: Analyzing trace with hash -26140774, now seen corresponding path program 1 times [2020-10-28 11:57:50,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:50,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1162269418] [2020-10-28 11:57:50,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:50,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:50,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:51,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:51,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 11:57:51,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:51,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 583 [2020-10-28 11:57:51,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:51,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:51,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:57:51,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 11:57:51,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-28 11:57:51,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 11:57:51,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:51,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:51,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:51,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:51,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:51,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 11:57:51,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:51,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:51,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:51,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:51,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 11:57:51,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:51,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 11:57:51,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1162269418] [2020-10-28 11:57:51,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 11:57:51,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 11:57:51,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245470716] [2020-10-28 11:57:51,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 11:57:51,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:51,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 11:57:51,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 11:57:51,737 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-28 11:57:53,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:53,689 INFO L93 Difference]: Finished difference Result 586 states and 1013 transitions. [2020-10-28 11:57:53,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:57:53,691 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-10-28 11:57:53,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:53,705 INFO L225 Difference]: With dead ends: 586 [2020-10-28 11:57:53,706 INFO L226 Difference]: Without dead ends: 303 [2020-10-28 11:57:53,714 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 11:57:53,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-28 11:57:53,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 297. [2020-10-28 11:57:53,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-10-28 11:57:53,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 424 transitions. [2020-10-28 11:57:53,790 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 424 transitions. Word has length 31 [2020-10-28 11:57:53,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:53,791 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 424 transitions. [2020-10-28 11:57:53,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 11:57:53,791 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 424 transitions. [2020-10-28 11:57:53,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-28 11:57:53,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:53,796 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:57:53,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 11:57:53,797 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:53,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:53,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1471292837, now seen corresponding path program 1 times [2020-10-28 11:57:53,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:53,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1530751940] [2020-10-28 11:57:53,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:53,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:53,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:54,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:54,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:55,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:55,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-28 11:57:55,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 11:57:55,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1189 [2020-10-28 11:57:55,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:55,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:55,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:57:55,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 11:57:55,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 11:57:55,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 11:57:55,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:55,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:55,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:55,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:55,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:55,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 11:57:55,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:55,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:55,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:55,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:55,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 11:57:55,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 11:57:55,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:55,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:55,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:55,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:55,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 11:57:55,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:55,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-28 11:57:55,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:55,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:55,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:55,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:57:55,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-28 11:57:55,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:55,471 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 11:57:55,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1530751940] [2020-10-28 11:57:55,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 11:57:55,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 11:57:55,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908299251] [2020-10-28 11:57:55,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:57:55,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:55,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:57:55,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:57:55,481 INFO L87 Difference]: Start difference. First operand 297 states and 424 transitions. Second operand 7 states. [2020-10-28 11:57:57,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:57,650 INFO L93 Difference]: Finished difference Result 908 states and 1332 transitions. [2020-10-28 11:57:57,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 11:57:57,651 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 103 [2020-10-28 11:57:57,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:57,664 INFO L225 Difference]: With dead ends: 908 [2020-10-28 11:57:57,664 INFO L226 Difference]: Without dead ends: 617 [2020-10-28 11:57:57,666 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 11:57:57,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2020-10-28 11:57:57,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 597. [2020-10-28 11:57:57,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 597 states. [2020-10-28 11:57:57,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 768 transitions. [2020-10-28 11:57:57,743 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 768 transitions. Word has length 103 [2020-10-28 11:57:57,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:57,744 INFO L481 AbstractCegarLoop]: Abstraction has 597 states and 768 transitions. [2020-10-28 11:57:57,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:57:57,744 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 768 transitions. [2020-10-28 11:57:57,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-28 11:57:57,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:57,756 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:57:57,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 11:57:57,756 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:57,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:57,757 INFO L82 PathProgramCache]: Analyzing trace with hash -448060235, now seen corresponding path program 1 times [2020-10-28 11:57:57,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:57,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [801682045] [2020-10-28 11:57:57,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:57,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:57,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:58,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:58,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:58,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-28 11:57:58,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:57:58,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 614 [2020-10-28 11:57:58,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:58,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:58,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:58,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-28 11:57:58,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 11:57:58,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:58,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:58,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:58,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:58,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:58,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:58,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:58,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 11:57:58,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:58,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:58,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:58,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:58,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:58,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:58,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:58,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:58,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:58,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 11:57:58,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:58,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-28 11:57:58,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:58,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:58,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:58,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:58,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 11:57:58,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:58,830 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 11:57:58,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [801682045] [2020-10-28 11:57:58,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:58,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 11:57:58,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583003600] [2020-10-28 11:57:58,833 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 11:57:58,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:58,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 11:57:58,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 11:57:58,837 INFO L87 Difference]: Start difference. First operand 597 states and 768 transitions. Second operand 6 states. [2020-10-28 11:58:01,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:58:01,310 INFO L93 Difference]: Finished difference Result 1043 states and 1427 transitions. [2020-10-28 11:58:01,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 11:58:01,312 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 110 [2020-10-28 11:58:01,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:58:01,327 INFO L225 Difference]: With dead ends: 1043 [2020-10-28 11:58:01,327 INFO L226 Difference]: Without dead ends: 1040 [2020-10-28 11:58:01,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-28 11:58:01,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2020-10-28 11:58:01,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 891. [2020-10-28 11:58:01,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-10-28 11:58:01,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1241 transitions. [2020-10-28 11:58:01,413 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1241 transitions. Word has length 110 [2020-10-28 11:58:01,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:58:01,414 INFO L481 AbstractCegarLoop]: Abstraction has 891 states and 1241 transitions. [2020-10-28 11:58:01,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 11:58:01,414 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1241 transitions. [2020-10-28 11:58:01,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-10-28 11:58:01,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:58:01,433 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 11:58:01,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 11:58:01,438 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:58:01,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:58:01,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1209949288, now seen corresponding path program 1 times [2020-10-28 11:58:01,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:58:01,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [326100854] [2020-10-28 11:58:01,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:58:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:01,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:01,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:02,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:03,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:03,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-10-28 11:58:03,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 11:58:03,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1990 [2020-10-28 11:58:03,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:03,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:03,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:03,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 11:58:03,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-28 11:58:03,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:03,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:58:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:03,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:03,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:03,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:58:03,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:03,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 11:58:03,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:03,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:03,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:03,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:03,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:03,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:58:03,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:58:03,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:03,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:03,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:03,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 11:58:03,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:03,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-28 11:58:03,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:03,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:03,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:58:03,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:03,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 11:58:03,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:58:03,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 11:58:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:03,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:04,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:04,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 11:58:04,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:04,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-10-28 11:58:04,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:04,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:04,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:04,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:58:04,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-28 11:58:04,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:04,174 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 113 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 11:58:04,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [326100854] [2020-10-28 11:58:04,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:58:04,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:58:04,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7684288] [2020-10-28 11:58:04,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:58:04,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:58:04,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:58:04,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:58:04,179 INFO L87 Difference]: Start difference. First operand 891 states and 1241 transitions. Second operand 7 states. [2020-10-28 11:58:06,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:58:06,262 INFO L93 Difference]: Finished difference Result 2251 states and 3264 transitions. [2020-10-28 11:58:06,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 11:58:06,264 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 220 [2020-10-28 11:58:06,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:58:06,279 INFO L225 Difference]: With dead ends: 2251 [2020-10-28 11:58:06,280 INFO L226 Difference]: Without dead ends: 1366 [2020-10-28 11:58:06,283 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 11:58:06,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2020-10-28 11:58:06,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1052. [2020-10-28 11:58:06,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2020-10-28 11:58:06,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1441 transitions. [2020-10-28 11:58:06,356 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1441 transitions. Word has length 220 [2020-10-28 11:58:06,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:58:06,358 INFO L481 AbstractCegarLoop]: Abstraction has 1052 states and 1441 transitions. [2020-10-28 11:58:06,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:58:06,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1441 transitions. [2020-10-28 11:58:06,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-10-28 11:58:06,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:58:06,368 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 11:58:06,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 11:58:06,368 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:58:06,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:58:06,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1978939854, now seen corresponding path program 1 times [2020-10-28 11:58:06,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:58:06,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1176469682] [2020-10-28 11:58:06,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:58:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:06,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:06,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:07,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:08,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:10,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:10,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-10-28 11:58:10,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 11:58:10,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4200 [2020-10-28 11:58:10,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:10,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:10,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:10,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-28 11:58:10,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-28 11:58:10,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:10,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:58:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:10,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:10,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:10,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:58:10,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:10,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 11:58:10,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:10,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:10,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:10,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:10,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:10,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:58:10,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:58:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:10,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:10,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:10,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-28 11:58:10,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:10,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-28 11:58:10,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:10,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:10,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:58:10,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:10,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-28 11:58:10,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:58:10,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 11:58:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:10,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:11,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:11,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 11:58:11,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:11,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-28 11:58:11,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:11,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:11,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:11,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:58:11,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-28 11:58:11,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:11,318 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 120 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 11:58:11,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1176469682] [2020-10-28 11:58:11,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:58:11,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:58:11,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123158173] [2020-10-28 11:58:11,320 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:58:11,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:58:11,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:58:11,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:58:11,322 INFO L87 Difference]: Start difference. First operand 1052 states and 1441 transitions. Second operand 7 states. [2020-10-28 11:58:13,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:58:13,677 INFO L93 Difference]: Finished difference Result 2593 states and 3715 transitions. [2020-10-28 11:58:13,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 11:58:13,677 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 227 [2020-10-28 11:58:13,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:58:13,690 INFO L225 Difference]: With dead ends: 2593 [2020-10-28 11:58:13,690 INFO L226 Difference]: Without dead ends: 1547 [2020-10-28 11:58:13,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 11:58:13,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2020-10-28 11:58:13,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1495. [2020-10-28 11:58:13,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states. [2020-10-28 11:58:13,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1969 transitions. [2020-10-28 11:58:13,768 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1969 transitions. Word has length 227 [2020-10-28 11:58:13,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:58:13,769 INFO L481 AbstractCegarLoop]: Abstraction has 1495 states and 1969 transitions. [2020-10-28 11:58:13,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:58:13,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1969 transitions. [2020-10-28 11:58:13,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-10-28 11:58:13,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:58:13,776 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 11:58:13,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 11:58:13,776 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:58:13,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:58:13,777 INFO L82 PathProgramCache]: Analyzing trace with hash -581696374, now seen corresponding path program 1 times [2020-10-28 11:58:13,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:58:13,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1764342627] [2020-10-28 11:58:13,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:58:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:13,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:13,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:14,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:14,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:15,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:15,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-10-28 11:58:15,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 11:58:15,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1742 [2020-10-28 11:58:15,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:15,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:15,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:15,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-28 11:58:15,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-28 11:58:15,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:58:15,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:58:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:15,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:15,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:15,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:58:15,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:15,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 11:58:15,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:15,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:15,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:15,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:15,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:15,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:58:15,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:58:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:15,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:15,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:15,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 11:58:15,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:15,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-28 11:58:15,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:15,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:15,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:58:15,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:15,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 11:58:15,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:58:15,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 11:58:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:15,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:16,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:16,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 11:58:16,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:16,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-28 11:58:16,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:16,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:16,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:16,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:58:16,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-28 11:58:16,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:16,446 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 11:58:16,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1764342627] [2020-10-28 11:58:16,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:58:16,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:58:16,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117083513] [2020-10-28 11:58:16,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:58:16,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:58:16,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:58:16,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:58:16,450 INFO L87 Difference]: Start difference. First operand 1495 states and 1969 transitions. Second operand 7 states. [2020-10-28 11:58:18,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:58:18,675 INFO L93 Difference]: Finished difference Result 3459 states and 4650 transitions. [2020-10-28 11:58:18,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 11:58:18,676 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 229 [2020-10-28 11:58:18,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:58:18,685 INFO L225 Difference]: With dead ends: 3459 [2020-10-28 11:58:18,686 INFO L226 Difference]: Without dead ends: 1529 [2020-10-28 11:58:18,691 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-28 11:58:18,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2020-10-28 11:58:18,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1350. [2020-10-28 11:58:18,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1350 states. [2020-10-28 11:58:18,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1350 states to 1350 states and 1672 transitions. [2020-10-28 11:58:18,744 INFO L78 Accepts]: Start accepts. Automaton has 1350 states and 1672 transitions. Word has length 229 [2020-10-28 11:58:18,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:58:18,744 INFO L481 AbstractCegarLoop]: Abstraction has 1350 states and 1672 transitions. [2020-10-28 11:58:18,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:58:18,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1350 states and 1672 transitions. [2020-10-28 11:58:18,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-10-28 11:58:18,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:58:18,750 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 11:58:18,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 11:58:18,750 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:58:18,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:58:18,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1920298874, now seen corresponding path program 1 times [2020-10-28 11:58:18,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:58:18,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1325825356] [2020-10-28 11:58:18,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:58:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:18,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:20,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:20,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:22,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:22,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-28 11:58:22,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 11:58:22,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3413 [2020-10-28 11:58:22,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:22,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:22,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:58:22,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 11:58:22,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 11:58:22,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:22,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:58:22,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:22,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:22,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:22,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:58:22,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:22,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 11:58:22,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:22,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:22,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:58:22,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:22,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 11:58:22,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:22,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:58:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:22,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:22,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:22,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 11:58:22,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:22,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-28 11:58:22,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:22,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:22,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:22,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:58:22,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-28 11:58:22,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:22,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-28 11:58:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:22,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:22,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:22,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 11:58:22,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:22,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-28 11:58:22,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:22,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:22,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:22,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-28 11:58:22,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:22,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:22,806 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 46 proven. 82 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 11:58:22,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1325825356] [2020-10-28 11:58:22,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:58:22,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:58:22,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948562629] [2020-10-28 11:58:22,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:58:22,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:58:22,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:58:22,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:58:22,810 INFO L87 Difference]: Start difference. First operand 1350 states and 1672 transitions. Second operand 7 states. [2020-10-28 11:58:24,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:58:24,506 INFO L93 Difference]: Finished difference Result 2851 states and 3517 transitions. [2020-10-28 11:58:24,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 11:58:24,507 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 237 [2020-10-28 11:58:24,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:58:24,517 INFO L225 Difference]: With dead ends: 2851 [2020-10-28 11:58:24,517 INFO L226 Difference]: Without dead ends: 1507 [2020-10-28 11:58:24,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-28 11:58:24,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2020-10-28 11:58:24,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1493. [2020-10-28 11:58:24,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1493 states. [2020-10-28 11:58:24,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 1822 transitions. [2020-10-28 11:58:24,585 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 1822 transitions. Word has length 237 [2020-10-28 11:58:24,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:58:24,586 INFO L481 AbstractCegarLoop]: Abstraction has 1493 states and 1822 transitions. [2020-10-28 11:58:24,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:58:24,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 1822 transitions. [2020-10-28 11:58:24,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-10-28 11:58:24,593 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:58:24,593 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:58:24,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 11:58:24,594 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:58:24,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:58:24,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1105386046, now seen corresponding path program 1 times [2020-10-28 11:58:24,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:58:24,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2004192776] [2020-10-28 11:58:24,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:58:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:24,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:25,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:25,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:26,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:26,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 279 [2020-10-28 11:58:26,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 11:58:26,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1530 [2020-10-28 11:58:26,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:26,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:26,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:26,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-28 11:58:26,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-28 11:58:26,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:26,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:58:26,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:26,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:26,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:26,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:58:26,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:26,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 11:58:26,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:26,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:26,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:26,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:26,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:26,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:58:26,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:58:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:26,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:26,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:26,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 11:58:26,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:26,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-28 11:58:26,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:26,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:26,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:58:26,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:26,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 11:58:26,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:26,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 11:58:26,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:26,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:26,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:26,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 11:58:26,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:26,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-28 11:58:26,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:26,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:26,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:26,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:58:26,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-28 11:58:26,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:26,967 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 158 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 11:58:26,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2004192776] [2020-10-28 11:58:26,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:58:26,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:58:26,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758876402] [2020-10-28 11:58:26,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:58:26,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:58:26,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:58:26,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:58:26,970 INFO L87 Difference]: Start difference. First operand 1493 states and 1822 transitions. Second operand 7 states. [2020-10-28 11:58:28,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:58:28,963 INFO L93 Difference]: Finished difference Result 3008 states and 3745 transitions. [2020-10-28 11:58:28,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 11:58:28,966 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 265 [2020-10-28 11:58:28,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:58:28,975 INFO L225 Difference]: With dead ends: 3008 [2020-10-28 11:58:28,975 INFO L226 Difference]: Without dead ends: 1664 [2020-10-28 11:58:28,980 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 11:58:28,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2020-10-28 11:58:29,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1648. [2020-10-28 11:58:29,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1648 states. [2020-10-28 11:58:29,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 1977 transitions. [2020-10-28 11:58:29,037 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 1977 transitions. Word has length 265 [2020-10-28 11:58:29,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:58:29,037 INFO L481 AbstractCegarLoop]: Abstraction has 1648 states and 1977 transitions. [2020-10-28 11:58:29,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:58:29,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 1977 transitions. [2020-10-28 11:58:29,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2020-10-28 11:58:29,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:58:29,047 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:58:29,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 11:58:29,047 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:58:29,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:58:29,048 INFO L82 PathProgramCache]: Analyzing trace with hash -513360339, now seen corresponding path program 1 times [2020-10-28 11:58:29,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:58:29,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1069342346] [2020-10-28 11:58:29,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:58:29,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:29,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:29,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:30,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:30,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:32,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:32,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 359 [2020-10-28 11:58:32,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 11:58:32,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3686 [2020-10-28 11:58:32,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:32,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:32,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:58:32,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-28 11:58:32,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 202 [2020-10-28 11:58:32,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:58:32,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:58:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:32,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:32,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:32,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:58:32,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:32,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 11:58:32,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:32,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:32,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:32,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:32,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:32,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:32,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:58:32,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:33,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:33,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:33,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 11:58:33,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:33,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-28 11:58:33,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:33,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:33,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:58:33,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:33,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 11:58:33,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:33,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 11:58:33,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:33,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:33,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:33,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 11:58:33,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:33,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-28 11:58:33,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:33,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:33,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:33,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:58:33,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-28 11:58:33,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:33,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-28 11:58:33,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:33,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:33,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:33,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-28 11:58:33,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:33,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-28 11:58:33,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:33,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:33,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:33,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:58:33,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-28 11:58:33,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:58:33,823 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 315 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-28 11:58:33,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1069342346] [2020-10-28 11:58:33,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:58:33,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 11:58:33,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843587313] [2020-10-28 11:58:33,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 11:58:33,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:58:33,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 11:58:33,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-28 11:58:33,835 INFO L87 Difference]: Start difference. First operand 1648 states and 1977 transitions. Second operand 8 states. [2020-10-28 11:58:36,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:58:36,151 INFO L93 Difference]: Finished difference Result 3751 states and 4588 transitions. [2020-10-28 11:58:36,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 11:58:36,156 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 343 [2020-10-28 11:58:36,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:58:36,168 INFO L225 Difference]: With dead ends: 3751 [2020-10-28 11:58:36,168 INFO L226 Difference]: Without dead ends: 2252 [2020-10-28 11:58:36,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-10-28 11:58:36,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2020-10-28 11:58:36,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 2246. [2020-10-28 11:58:36,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2246 states. [2020-10-28 11:58:36,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 2668 transitions. [2020-10-28 11:58:36,242 INFO L78 Accepts]: Start accepts. Automaton has 2246 states and 2668 transitions. Word has length 343 [2020-10-28 11:58:36,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:58:36,243 INFO L481 AbstractCegarLoop]: Abstraction has 2246 states and 2668 transitions. [2020-10-28 11:58:36,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 11:58:36,243 INFO L276 IsEmpty]: Start isEmpty. Operand 2246 states and 2668 transitions. [2020-10-28 11:58:36,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2020-10-28 11:58:36,254 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:58:36,254 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:58:36,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 11:58:36,255 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:58:36,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:58:36,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1983340259, now seen corresponding path program 1 times [2020-10-28 11:58:36,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:58:36,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1911197680] [2020-10-28 11:58:36,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:58:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:36,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:36,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:38,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:39,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:39,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 368 [2020-10-28 11:58:39,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 11:58:39,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2701 [2020-10-28 11:58:39,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:39,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:39,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:39,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-28 11:58:39,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-28 11:58:39,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:39,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:58:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:39,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:39,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:39,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:58:39,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:39,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 11:58:39,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:39,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:39,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:39,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:39,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:39,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:39,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:58:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:39,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:39,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:39,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 11:58:39,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:39,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-28 11:58:39,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:39,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:39,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:58:39,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:39,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 11:58:39,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:39,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 11:58:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:39,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:39,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:39,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 11:58:39,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:39,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-28 11:58:39,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:39,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:39,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:39,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:58:39,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-28 11:58:39,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:39,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-28 11:58:39,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:39,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:39,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:39,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 11:58:39,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:39,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-28 11:58:39,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:39,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:39,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:39,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-28 11:58:39,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:39,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:39,902 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 157 proven. 86 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-28 11:58:39,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1911197680] [2020-10-28 11:58:39,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:58:39,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:58:39,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015826151] [2020-10-28 11:58:39,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:58:39,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:58:39,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:58:39,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:58:39,905 INFO L87 Difference]: Start difference. First operand 2246 states and 2668 transitions. Second operand 7 states. [2020-10-28 11:58:41,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:58:41,943 INFO L93 Difference]: Finished difference Result 4347 states and 5184 transitions. [2020-10-28 11:58:41,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 11:58:41,943 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 352 [2020-10-28 11:58:41,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:58:41,955 INFO L225 Difference]: With dead ends: 4347 [2020-10-28 11:58:41,956 INFO L226 Difference]: Without dead ends: 2250 [2020-10-28 11:58:41,961 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-28 11:58:41,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2250 states. [2020-10-28 11:58:42,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2250 to 2246. [2020-10-28 11:58:42,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2246 states. [2020-10-28 11:58:42,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 2645 transitions. [2020-10-28 11:58:42,030 INFO L78 Accepts]: Start accepts. Automaton has 2246 states and 2645 transitions. Word has length 352 [2020-10-28 11:58:42,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:58:42,031 INFO L481 AbstractCegarLoop]: Abstraction has 2246 states and 2645 transitions. [2020-10-28 11:58:42,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:58:42,031 INFO L276 IsEmpty]: Start isEmpty. Operand 2246 states and 2645 transitions. [2020-10-28 11:58:42,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2020-10-28 11:58:42,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:58:42,042 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:58:42,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 11:58:42,042 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:58:42,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:58:42,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1690744941, now seen corresponding path program 1 times [2020-10-28 11:58:42,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:58:42,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1290812645] [2020-10-28 11:58:42,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:58:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:42,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:42,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:43,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:43,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 372 [2020-10-28 11:58:43,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:58:43,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-10-28 11:58:43,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:43,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:43,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:43,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 339 [2020-10-28 11:58:43,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 11:58:43,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:43,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:58:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:43,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:43,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:43,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:58:43,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:43,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 11:58:43,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:43,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:43,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:43,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:43,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:43,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:43,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:58:43,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:43,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:43,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:43,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 11:58:43,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:43,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 11:58:43,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:43,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:43,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:43,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:43,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:43,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:43,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 11:58:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:43,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:43,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:43,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-28 11:58:43,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:43,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 11:58:43,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:43,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:43,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:43,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:43,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:43,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:43,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-28 11:58:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:43,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:43,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:43,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-28 11:58:43,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:43,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-28 11:58:43,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:43,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:43,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:58:43,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:43,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-28 11:58:43,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:43,653 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 72 proven. 3 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-10-28 11:58:43,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1290812645] [2020-10-28 11:58:43,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:58:43,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 11:58:43,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813111081] [2020-10-28 11:58:43,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 11:58:43,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:58:43,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 11:58:43,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 11:58:43,659 INFO L87 Difference]: Start difference. First operand 2246 states and 2645 transitions. Second operand 5 states. [2020-10-28 11:58:45,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:58:45,359 INFO L93 Difference]: Finished difference Result 4780 states and 5798 transitions. [2020-10-28 11:58:45,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:58:45,361 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 356 [2020-10-28 11:58:45,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:58:45,377 INFO L225 Difference]: With dead ends: 4780 [2020-10-28 11:58:45,378 INFO L226 Difference]: Without dead ends: 2683 [2020-10-28 11:58:45,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 11:58:45,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2020-10-28 11:58:45,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2536. [2020-10-28 11:58:45,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2536 states. [2020-10-28 11:58:45,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2536 states to 2536 states and 2985 transitions. [2020-10-28 11:58:45,462 INFO L78 Accepts]: Start accepts. Automaton has 2536 states and 2985 transitions. Word has length 356 [2020-10-28 11:58:45,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:58:45,463 INFO L481 AbstractCegarLoop]: Abstraction has 2536 states and 2985 transitions. [2020-10-28 11:58:45,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 11:58:45,464 INFO L276 IsEmpty]: Start isEmpty. Operand 2536 states and 2985 transitions. [2020-10-28 11:58:45,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2020-10-28 11:58:45,475 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:58:45,476 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:58:45,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 11:58:45,476 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:58:45,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:58:45,477 INFO L82 PathProgramCache]: Analyzing trace with hash -633923529, now seen corresponding path program 1 times [2020-10-28 11:58:45,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:58:45,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [661806224] [2020-10-28 11:58:45,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:58:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:45,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:45,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:46,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:46,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 387 [2020-10-28 11:58:46,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:58:46,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1380 [2020-10-28 11:58:46,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:46,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:46,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:46,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-28 11:58:46,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 11:58:46,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:47,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:58:47,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:47,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:47,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:47,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:58:47,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:47,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 11:58:47,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:47,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:47,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:47,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:47,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:47,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:47,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:58:47,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:47,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:47,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:47,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-28 11:58:47,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:47,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 11:58:47,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:47,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:47,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:47,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:47,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:47,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:47,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-28 11:58:47,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:47,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:47,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:47,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 11:58:47,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:47,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 11:58:47,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:47,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:47,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:47,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:47,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:47,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:47,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-28 11:58:47,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:47,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:47,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:47,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 11:58:47,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:47,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-28 11:58:47,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:47,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:47,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:58:47,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:47,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-28 11:58:47,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:47,440 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 72 proven. 3 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-10-28 11:58:47,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [661806224] [2020-10-28 11:58:47,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:58:47,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 11:58:47,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557525365] [2020-10-28 11:58:47,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 11:58:47,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:58:47,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 11:58:47,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 11:58:47,443 INFO L87 Difference]: Start difference. First operand 2536 states and 2985 transitions. Second operand 5 states. [2020-10-28 11:58:49,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:58:49,074 INFO L93 Difference]: Finished difference Result 4777 states and 5656 transitions. [2020-10-28 11:58:49,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:58:49,076 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 371 [2020-10-28 11:58:49,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:58:49,078 INFO L225 Difference]: With dead ends: 4777 [2020-10-28 11:58:49,078 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 11:58:49,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 11:58:49,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 11:58:49,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 11:58:49,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 11:58:49,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 11:58:49,088 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 371 [2020-10-28 11:58:49,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:58:49,088 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 11:58:49,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 11:58:49,088 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 11:58:49,088 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 11:58:49,089 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 11:58:49,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 11:58:49,505 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 157 [2020-10-28 11:58:50,123 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 157 [2020-10-28 11:58:50,690 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 23 [2020-10-28 11:58:51,168 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 27 [2020-10-28 11:58:51,363 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 14 [2020-10-28 11:58:51,859 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 23 [2020-10-28 11:58:51,863 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-28 11:58:51,864 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-28 11:58:51,864 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-28 11:58:51,864 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-28 11:58:51,864 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 11:58:51,864 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-28 11:58:51,865 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 11:58:51,865 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-28 11:58:51,865 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-28 11:58:51,865 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-28 11:58:51,865 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-28 11:58:51,865 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-28 11:58:51,866 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-28 11:58:51,866 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-28 11:58:51,866 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-28 11:58:51,866 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-28 11:58:51,866 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-28 11:58:51,866 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-28 11:58:51,866 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-28 11:58:51,866 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-28 11:58:51,867 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,867 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,867 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,867 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,867 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,867 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,867 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-28 11:58:51,867 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-28 11:58:51,867 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-28 11:58:51,868 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-28 11:58:51,868 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-28 11:58:51,868 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-28 11:58:51,868 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-28 11:58:51,868 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-28 11:58:51,868 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-28 11:58:51,868 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-28 11:58:51,868 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-28 11:58:51,868 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,869 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,869 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,869 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,869 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,869 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-28 11:58:51,869 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-28 11:58:51,869 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-28 11:58:51,869 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-28 11:58:51,869 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-28 11:58:51,869 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-28 11:58:51,869 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-28 11:58:51,870 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-28 11:58:51,870 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-28 11:58:51,870 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-28 11:58:51,870 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-28 11:58:51,870 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-28 11:58:51,870 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-28 11:58:51,870 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-28 11:58:51,870 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,870 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,871 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,871 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,871 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,871 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-28 11:58:51,871 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-28 11:58:51,871 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-28 11:58:51,871 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-28 11:58:51,871 INFO L270 CegarLoopResult]: At program point L78(line 78) the Hoare annotation is: (and (not (= 3 |old(~a10~0)|)) (not (<= 4 |old(~a10~0)|)) (= 6 |old(~a19~0)|) (not (= 0 |old(~a10~0)|))) [2020-10-28 11:58:51,871 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-28 11:58:51,872 INFO L274 CegarLoopResult]: For program point L78-1(line 78) no Hoare annotation was computed. [2020-10-28 11:58:51,872 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-28 11:58:51,872 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-28 11:58:51,872 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-28 11:58:51,872 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-28 11:58:51,872 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,872 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,872 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,872 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,872 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,873 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-28 11:58:51,873 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-28 11:58:51,873 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-28 11:58:51,873 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-28 11:58:51,873 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-28 11:58:51,873 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-28 11:58:51,873 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-28 11:58:51,873 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-28 11:58:51,873 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-28 11:58:51,873 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-28 11:58:51,874 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-28 11:58:51,874 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-28 11:58:51,874 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-28 11:58:51,874 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,874 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,874 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,874 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,874 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,874 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-28 11:58:51,874 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-28 11:58:51,874 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-28 11:58:51,875 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-28 11:58:51,875 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-28 11:58:51,875 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,875 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,875 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-28 11:58:51,875 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-28 11:58:51,875 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-28 11:58:51,875 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-28 11:58:51,875 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,875 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,876 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,876 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,876 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,876 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-28 11:58:51,876 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-28 11:58:51,876 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-28 11:58:51,876 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-28 11:58:51,876 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-28 11:58:51,876 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-28 11:58:51,876 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-28 11:58:51,877 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-28 11:58:51,877 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-28 11:58:51,877 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-28 11:58:51,877 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-28 11:58:51,877 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-28 11:58:51,877 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-28 11:58:51,877 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,877 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,877 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,877 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,878 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-28 11:58:51,878 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,878 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,878 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-28 11:58:51,878 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-28 11:58:51,878 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-28 11:58:51,878 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-28 11:58:51,878 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-28 11:58:51,878 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-28 11:58:51,879 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-28 11:58:51,879 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-28 11:58:51,879 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-28 11:58:51,879 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-28 11:58:51,879 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-28 11:58:51,879 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-28 11:58:51,879 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-28 11:58:51,879 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,879 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,879 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,879 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,880 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,880 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,880 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-28 11:58:51,880 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)))) (and (or (not (<= 4 |old(~a10~0)|)) .cse0) (or .cse0 (not (= 0 |old(~a10~0)|))) (or (= 6 |old(~a19~0)|) .cse0) (or (not (= 3 |old(~a10~0)|)) .cse0))) [2020-10-28 11:58:51,880 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-28 11:58:51,880 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-28 11:58:51,880 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-28 11:58:51,880 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-28 11:58:51,880 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-28 11:58:51,880 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-28 11:58:51,881 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-28 11:58:51,881 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-28 11:58:51,881 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-28 11:58:51,881 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-28 11:58:51,881 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-28 11:58:51,881 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-28 11:58:51,881 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-28 11:58:51,881 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,881 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,881 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,882 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,882 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,882 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,882 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-28 11:58:51,882 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-28 11:58:51,882 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-28 11:58:51,882 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-28 11:58:51,882 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-28 11:58:51,882 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-28 11:58:51,882 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-28 11:58:51,882 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-28 11:58:51,883 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-28 11:58:51,883 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-28 11:58:51,883 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-28 11:58:51,883 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-28 11:58:51,883 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-28 11:58:51,883 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,883 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,883 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,883 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,883 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,883 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,884 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-28 11:58:51,884 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-28 11:58:51,884 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-28 11:58:51,884 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-28 11:58:51,884 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-28 11:58:51,884 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-28 11:58:51,884 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-28 11:58:51,884 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-28 11:58:51,884 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-28 11:58:51,884 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-28 11:58:51,884 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-28 11:58:51,885 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-28 11:58:51,885 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,885 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,885 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,885 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,885 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,885 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:51,885 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 11:58:51,885 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (= 23 ~a1~0)) [2020-10-28 11:58:51,885 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 11:58:51,885 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 11:58:51,886 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (and (= 23 ~a1~0) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) [2020-10-28 11:58:51,886 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-28 11:58:51,886 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (or (= ~a10~0 3) (<= 4 ~a10~0) (= ~a10~0 0) (not (= 9 |old(~a19~0)|)) (not (= ~a19~0 6)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|))) [2020-10-28 11:58:51,886 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-28 11:58:51,886 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-28 11:58:51,886 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (or (= ~a10~0 3) (<= 4 ~a10~0) (= ~a10~0 0) (not (= 9 |old(~a19~0)|)) (not (= ~a19~0 6)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|))) [2020-10-28 11:58:51,886 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-28 11:58:51,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:58:51 BoogieIcfgContainer [2020-10-28 11:58:51,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 11:58:51,907 INFO L168 Benchmark]: Toolchain (without parser) took 63948.52 ms. Allocated memory was 151.0 MB in the beginning and 987.8 MB in the end (delta: 836.8 MB). Free memory was 106.5 MB in the beginning and 493.8 MB in the end (delta: -387.3 MB). Peak memory consumption was 450.0 MB. Max. memory is 8.0 GB. [2020-10-28 11:58:51,908 INFO L168 Benchmark]: CDTParser took 0.66 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 11:58:51,909 INFO L168 Benchmark]: CACSL2BoogieTranslator took 859.46 ms. Allocated memory is still 151.0 MB. Free memory was 106.1 MB in the beginning and 124.4 MB in the end (delta: -18.3 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2020-10-28 11:58:51,909 INFO L168 Benchmark]: Boogie Preprocessor took 141.71 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 119.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-28 11:58:51,910 INFO L168 Benchmark]: RCFGBuilder took 1617.41 ms. Allocated memory is still 151.0 MB. Free memory was 119.8 MB in the beginning and 74.8 MB in the end (delta: 45.0 MB). Peak memory consumption was 52.6 MB. Max. memory is 8.0 GB. [2020-10-28 11:58:51,911 INFO L168 Benchmark]: TraceAbstraction took 61311.52 ms. Allocated memory was 151.0 MB in the beginning and 987.8 MB in the end (delta: 836.8 MB). Free memory was 74.3 MB in the beginning and 493.8 MB in the end (delta: -419.5 MB). Peak memory consumption was 417.3 MB. Max. memory is 8.0 GB. [2020-10-28 11:58:51,914 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 859.46 ms. Allocated memory is still 151.0 MB. Free memory was 106.1 MB in the beginning and 124.4 MB in the end (delta: -18.3 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 141.71 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 119.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1617.41 ms. Allocated memory is still 151.0 MB. Free memory was 119.8 MB in the beginning and 74.8 MB in the end (delta: 45.0 MB). Peak memory consumption was 52.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 61311.52 ms. Allocated memory was 151.0 MB in the beginning and 987.8 MB in the end (delta: 836.8 MB). Free memory was 74.3 MB in the beginning and 493.8 MB in the end (delta: -419.5 MB). Peak memory consumption was 417.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: (((((a10 == 3 || 4 <= a10) || a10 == 0) || !(9 == \old(a19))) || !(a19 == 6)) || !(0 == \old(a10))) || !(23 == \old(a1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 58.4s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 24.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 345 SDtfs, 4665 SDslu, 423 SDs, 0 SdLazy, 10918 SolverSat, 1711 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 189 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2536occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 907 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 252 PreInvPairs, 290 NumberOfFragments, 224 HoareAnnotationTreeSize, 252 FomulaSimplifications, 161155 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 28410 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 30.4s InterpolantComputationTime, 2844 NumberOfCodeBlocks, 2844 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2832 ConstructedInterpolants, 0 QuantifiedInterpolants, 1878279 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 1917/2106 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...