/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label55.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:36:41,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:36:41,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:36:42,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:36:42,032 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:36:42,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:36:42,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:36:42,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:36:42,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:36:42,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:36:42,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:36:42,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:36:42,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:36:42,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:36:42,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:36:42,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:36:42,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:36:42,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:36:42,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:36:42,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:36:42,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:36:42,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:36:42,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:36:42,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:36:42,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:36:42,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:36:42,138 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:36:42,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:36:42,143 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:36:42,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:36:42,145 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:36:42,146 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:36:42,147 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:36:42,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:36:42,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:36:42,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:36:42,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:36:42,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:36:42,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:36:42,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:36:42,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:36:42,165 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 20:36:42,192 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:36:42,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:36:42,194 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:36:42,194 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:36:42,195 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:36:42,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:36:42,195 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:36:42,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:36:42,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:36:42,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:36:42,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:36:42,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:36:42,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:36:42,197 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:36:42,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:36:42,197 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:36:42,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:36:42,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:36:42,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:36:42,198 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:36:42,198 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:36:42,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:36:42,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:36:42,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:36:42,199 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:36:42,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:36:42,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:36:42,200 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:36:42,200 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:36:42,200 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:36:42,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:36:42,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:36:42,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:36:42,607 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:36:42,608 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:36:42,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label55.c [2020-10-26 20:36:42,701 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0d3662caf/a374c97b234548ecac54348f0dbb9d73/FLAG0f4232608 [2020-10-26 20:36:43,540 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:36:43,543 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label55.c [2020-10-26 20:36:43,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0d3662caf/a374c97b234548ecac54348f0dbb9d73/FLAG0f4232608 [2020-10-26 20:36:43,776 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0d3662caf/a374c97b234548ecac54348f0dbb9d73 [2020-10-26 20:36:43,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:36:43,787 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:36:43,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:36:43,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:36:43,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:36:43,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:36:43" (1/1) ... [2020-10-26 20:36:43,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49e5e86c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:43, skipping insertion in model container [2020-10-26 20:36:43,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:36:43" (1/1) ... [2020-10-26 20:36:43,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:36:43,882 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:36:44,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:36:44,346 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:36:44,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:36:44,618 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:36:44,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:44 WrapperNode [2020-10-26 20:36:44,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:36:44,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:36:44,623 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:36:44,623 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:36:44,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:44" (1/1) ... [2020-10-26 20:36:44,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:44" (1/1) ... [2020-10-26 20:36:44,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:44" (1/1) ... [2020-10-26 20:36:44,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:44" (1/1) ... [2020-10-26 20:36:44,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:44" (1/1) ... [2020-10-26 20:36:44,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:44" (1/1) ... [2020-10-26 20:36:44,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:44" (1/1) ... [2020-10-26 20:36:44,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:36:44,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:36:44,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:36:44,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:36:44,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:44" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:36:44,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:36:44,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:36:44,902 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:36:44,903 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:36:44,903 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:36:44,904 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:36:44,904 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:36:44,904 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:36:44,904 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:36:44,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:36:44,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:36:44,906 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:36:44,906 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:36:44,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:36:44,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:36:44,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:36:44,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:36:44,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:36:44,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:36:46,287 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:36:46,288 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:36:46,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:36:46 BoogieIcfgContainer [2020-10-26 20:36:46,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:36:46,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:36:46,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:36:46,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:36:46,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:36:43" (1/3) ... [2020-10-26 20:36:46,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5374cf72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:36:46, skipping insertion in model container [2020-10-26 20:36:46,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:44" (2/3) ... [2020-10-26 20:36:46,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5374cf72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:36:46, skipping insertion in model container [2020-10-26 20:36:46,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:36:46" (3/3) ... [2020-10-26 20:36:46,301 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label55.c [2020-10-26 20:36:46,314 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:36:46,320 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:36:46,335 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:36:46,368 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:36:46,368 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:36:46,368 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:36:46,368 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:36:46,369 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:36:46,369 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:36:46,369 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:36:46,369 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:36:46,395 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:36:46,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-26 20:36:46,410 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:46,411 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:46,412 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:46,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:46,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1844226135, now seen corresponding path program 1 times [2020-10-26 20:36:46,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:46,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1748786282] [2020-10-26 20:36:46,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:46,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:47,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:48,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:48,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-26 20:36:48,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:48,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1872 [2020-10-26 20:36:48,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:48,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:36:48,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:36:48,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-26 20:36:48,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:36:48,993 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:36:48,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:49,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:49,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:49,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:49,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:49,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-26 20:36:49,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:49,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:49,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:49,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:36:49,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:36:49,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:36:49,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1748786282] [2020-10-26 20:36:49,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:36:49,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 20:36:49,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100974782] [2020-10-26 20:36:49,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:36:49,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:49,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:36:49,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:36:49,193 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 4 states. [2020-10-26 20:36:49,367 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:36:51,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:51,206 INFO L93 Difference]: Finished difference Result 562 states and 962 transitions. [2020-10-26 20:36:51,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:36:51,209 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 118 [2020-10-26 20:36:51,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:51,224 INFO L225 Difference]: With dead ends: 562 [2020-10-26 20:36:51,224 INFO L226 Difference]: Without dead ends: 287 [2020-10-26 20:36:51,231 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:36:51,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-26 20:36:51,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 281. [2020-10-26 20:36:51,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-26 20:36:51,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 385 transitions. [2020-10-26 20:36:51,315 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 385 transitions. Word has length 118 [2020-10-26 20:36:51,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:51,318 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 385 transitions. [2020-10-26 20:36:51,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:36:51,318 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 385 transitions. [2020-10-26 20:36:51,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-26 20:36:51,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:51,325 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:51,328 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:36:51,328 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:51,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:51,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1279302474, now seen corresponding path program 1 times [2020-10-26 20:36:51,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:51,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [314943265] [2020-10-26 20:36:51,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:51,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:51,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:51,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:53,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:55,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:55,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-26 20:36:55,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:36:55,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4349 [2020-10-26 20:36:55,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:55,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:36:55,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:36:55,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-26 20:36:55,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:55,924 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:36:55,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:55,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:55,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:55,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:55,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:55,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:55,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 20:36:55,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:55,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:55,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:55,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:36:55,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:36:56,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:56,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:56,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:56,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:36:56,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:56,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:36:56,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:56,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:56,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:56,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:36:56,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:36:56,103 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:36:56,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [314943265] [2020-10-26 20:36:56,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:36:56,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 20:36:56,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576698246] [2020-10-26 20:36:56,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:36:56,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:56,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:36:56,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:36:56,112 INFO L87 Difference]: Start difference. First operand 281 states and 385 transitions. Second operand 7 states. [2020-10-26 20:36:58,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:58,140 INFO L93 Difference]: Finished difference Result 861 states and 1207 transitions. [2020-10-26 20:36:58,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:36:58,140 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 127 [2020-10-26 20:36:58,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:58,147 INFO L225 Difference]: With dead ends: 861 [2020-10-26 20:36:58,147 INFO L226 Difference]: Without dead ends: 586 [2020-10-26 20:36:58,149 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:36:58,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2020-10-26 20:36:58,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 563. [2020-10-26 20:36:58,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 563 states. [2020-10-26 20:36:58,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 748 transitions. [2020-10-26 20:36:58,211 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 748 transitions. Word has length 127 [2020-10-26 20:36:58,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:58,211 INFO L481 AbstractCegarLoop]: Abstraction has 563 states and 748 transitions. [2020-10-26 20:36:58,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:36:58,211 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 748 transitions. [2020-10-26 20:36:58,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-26 20:36:58,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:58,216 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:58,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:36:58,216 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:58,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:58,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1306460186, now seen corresponding path program 1 times [2020-10-26 20:36:58,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:58,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554947793] [2020-10-26 20:36:58,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:58,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:58,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:58,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:59,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:59,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-26 20:36:59,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:36:59,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 961 [2020-10-26 20:36:59,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:59,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:36:59,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:36:59,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-26 20:36:59,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:59,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:59,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:59,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:59,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:59,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:59,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:36:59,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:59,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:59,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:59,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:36:59,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:59,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:59,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:59,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:59,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:59,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:36:59,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:59,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 20:36:59,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:59,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:59,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:59,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:36:59,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:59,569 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:36:59,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554947793] [2020-10-26 20:36:59,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:59,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:36:59,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636661568] [2020-10-26 20:36:59,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:36:59,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:59,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:36:59,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:36:59,574 INFO L87 Difference]: Start difference. First operand 563 states and 748 transitions. Second operand 6 states. [2020-10-26 20:36:59,708 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:37:01,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:01,288 INFO L93 Difference]: Finished difference Result 1718 states and 2376 transitions. [2020-10-26 20:37:01,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:37:01,290 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2020-10-26 20:37:01,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:01,300 INFO L225 Difference]: With dead ends: 1718 [2020-10-26 20:37:01,300 INFO L226 Difference]: Without dead ends: 1161 [2020-10-26 20:37:01,303 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:37:01,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2020-10-26 20:37:01,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1137. [2020-10-26 20:37:01,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1137 states. [2020-10-26 20:37:01,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1466 transitions. [2020-10-26 20:37:01,377 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1466 transitions. Word has length 129 [2020-10-26 20:37:01,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:01,378 INFO L481 AbstractCegarLoop]: Abstraction has 1137 states and 1466 transitions. [2020-10-26 20:37:01,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:37:01,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1466 transitions. [2020-10-26 20:37:01,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-26 20:37:01,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:01,385 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:01,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:37:01,386 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:01,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:01,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1385162669, now seen corresponding path program 1 times [2020-10-26 20:37:01,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:01,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [34968086] [2020-10-26 20:37:01,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:01,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:01,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:01,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:02,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:04,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:06,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:06,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-26 20:37:06,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:37:06,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-26 20:37:06,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:06,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:37:06,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:06,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:37:06,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:06,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:06,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:06,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:06,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:06,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:06,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:37:06,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:06,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:06,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:06,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:06,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:06,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:06,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:06,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:06,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:06,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:06,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:37:06,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:06,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:37:06,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:06,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:06,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:06,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:37:06,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:06,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:37:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:06,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:06,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:06,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:37:06,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:06,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:37:06,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:06,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:06,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:06,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:37:06,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:06,745 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:37:06,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [34968086] [2020-10-26 20:37:06,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:06,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:06,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722810927] [2020-10-26 20:37:06,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:37:06,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:06,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:37:06,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:37:06,748 INFO L87 Difference]: Start difference. First operand 1137 states and 1466 transitions. Second operand 8 states. [2020-10-26 20:37:08,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:08,488 INFO L93 Difference]: Finished difference Result 2737 states and 3696 transitions. [2020-10-26 20:37:08,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:37:08,489 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 138 [2020-10-26 20:37:08,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:08,499 INFO L225 Difference]: With dead ends: 2737 [2020-10-26 20:37:08,500 INFO L226 Difference]: Without dead ends: 1606 [2020-10-26 20:37:08,503 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:37:08,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2020-10-26 20:37:08,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1566. [2020-10-26 20:37:08,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1566 states. [2020-10-26 20:37:08,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 1997 transitions. [2020-10-26 20:37:08,577 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 1997 transitions. Word has length 138 [2020-10-26 20:37:08,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:08,577 INFO L481 AbstractCegarLoop]: Abstraction has 1566 states and 1997 transitions. [2020-10-26 20:37:08,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:37:08,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 1997 transitions. [2020-10-26 20:37:08,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-26 20:37:08,583 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:08,583 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:08,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:37:08,584 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:08,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:08,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1792178209, now seen corresponding path program 1 times [2020-10-26 20:37:08,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:08,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [758987008] [2020-10-26 20:37:08,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:08,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:08,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:09,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:11,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:12,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:12,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:13,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:13,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-26 20:37:13,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 20:37:13,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-26 20:37:13,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:13,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:37:13,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:13,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-26 20:37:13,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:13,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:13,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:13,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:13,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:13,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:13,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:13,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-26 20:37:13,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:13,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:13,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:13,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:13,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:13,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:13,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:13,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:13,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:13,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:13,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:37:13,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:13,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:37:13,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:13,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:13,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:13,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:37:13,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:37:13,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:37:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:14,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:14,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:14,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-26 20:37:14,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:14,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-26 20:37:14,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:14,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:14,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:14,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-26 20:37:14,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:14,155 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:37:14,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [758987008] [2020-10-26 20:37:14,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:14,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:14,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175573034] [2020-10-26 20:37:14,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:37:14,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:14,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:37:14,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:37:14,159 INFO L87 Difference]: Start difference. First operand 1566 states and 1997 transitions. Second operand 8 states. [2020-10-26 20:37:15,653 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:37:16,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:16,126 INFO L93 Difference]: Finished difference Result 4326 states and 5759 transitions. [2020-10-26 20:37:16,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:37:16,127 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 152 [2020-10-26 20:37:16,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:16,148 INFO L225 Difference]: With dead ends: 4326 [2020-10-26 20:37:16,148 INFO L226 Difference]: Without dead ends: 2766 [2020-10-26 20:37:16,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:37:16,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2766 states. [2020-10-26 20:37:16,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2766 to 2722. [2020-10-26 20:37:16,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2722 states. [2020-10-26 20:37:16,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2722 states to 2722 states and 3438 transitions. [2020-10-26 20:37:16,294 INFO L78 Accepts]: Start accepts. Automaton has 2722 states and 3438 transitions. Word has length 152 [2020-10-26 20:37:16,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:16,295 INFO L481 AbstractCegarLoop]: Abstraction has 2722 states and 3438 transitions. [2020-10-26 20:37:16,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:37:16,295 INFO L276 IsEmpty]: Start isEmpty. Operand 2722 states and 3438 transitions. [2020-10-26 20:37:16,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-26 20:37:16,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:16,307 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:16,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:37:16,307 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:16,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:16,309 INFO L82 PathProgramCache]: Analyzing trace with hash 735577778, now seen corresponding path program 1 times [2020-10-26 20:37:16,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:16,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [446434799] [2020-10-26 20:37:16,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:16,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:16,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:16,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:18,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:21,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:21,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-26 20:37:21,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:37:21,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-26 20:37:21,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:21,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:37:21,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:21,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:37:21,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:21,549 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:37:21,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:21,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:21,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:21,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:21,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:21,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:37:21,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:21,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:21,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:21,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:21,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:21,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:21,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:21,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:21,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:21,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:37:21,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:21,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-26 20:37:21,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:21,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:21,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:21,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:37:21,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:21,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:37:21,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:21,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:21,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:21,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:37:21,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:21,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 20:37:21,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:21,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:21,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:21,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:37:21,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:21,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-26 20:37:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:21,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:21,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:21,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:37:21,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:21,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:37:21,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:21,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:21,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-26 20:37:21,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:21,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:21,794 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 31 proven. 10 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-26 20:37:21,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [446434799] [2020-10-26 20:37:21,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:21,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:21,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333395691] [2020-10-26 20:37:21,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:21,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:21,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:21,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:21,797 INFO L87 Difference]: Start difference. First operand 2722 states and 3438 transitions. Second operand 7 states. [2020-10-26 20:37:21,943 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:37:23,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:23,735 INFO L93 Difference]: Finished difference Result 5335 states and 6825 transitions. [2020-10-26 20:37:23,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:37:23,736 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 153 [2020-10-26 20:37:23,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:23,754 INFO L225 Difference]: With dead ends: 5335 [2020-10-26 20:37:23,754 INFO L226 Difference]: Without dead ends: 2754 [2020-10-26 20:37:23,762 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:37:23,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2020-10-26 20:37:23,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 2595. [2020-10-26 20:37:23,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2595 states. [2020-10-26 20:37:23,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2595 states to 2595 states and 3264 transitions. [2020-10-26 20:37:23,873 INFO L78 Accepts]: Start accepts. Automaton has 2595 states and 3264 transitions. Word has length 153 [2020-10-26 20:37:23,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:23,874 INFO L481 AbstractCegarLoop]: Abstraction has 2595 states and 3264 transitions. [2020-10-26 20:37:23,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:23,874 INFO L276 IsEmpty]: Start isEmpty. Operand 2595 states and 3264 transitions. [2020-10-26 20:37:23,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-26 20:37:23,883 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:23,883 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:23,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:37:23,884 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:23,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:23,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1187947162, now seen corresponding path program 1 times [2020-10-26 20:37:23,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:23,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [366719510] [2020-10-26 20:37:23,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:23,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:23,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:26,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:26,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:27,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:27,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-26 20:37:27,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:37:27,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3759 [2020-10-26 20:37:27,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:27,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:37:27,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:27,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-26 20:37:27,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:27,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:27,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:27,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:27,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:27,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:27,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:37:27,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:27,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:27,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:27,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:27,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:27,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:27,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:27,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:27,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:27,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:37:27,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:27,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-26 20:37:27,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:27,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:27,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:27,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:37:27,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:28,029 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:37:28,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [366719510] [2020-10-26 20:37:28,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:28,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:37:28,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444232878] [2020-10-26 20:37:28,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:37:28,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:28,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:37:28,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:37:28,035 INFO L87 Difference]: Start difference. First operand 2595 states and 3264 transitions. Second operand 6 states. [2020-10-26 20:37:29,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:29,486 INFO L93 Difference]: Finished difference Result 3575 states and 4627 transitions. [2020-10-26 20:37:29,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:37:29,487 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 151 [2020-10-26 20:37:29,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:29,509 INFO L225 Difference]: With dead ends: 3575 [2020-10-26 20:37:29,509 INFO L226 Difference]: Without dead ends: 3572 [2020-10-26 20:37:29,512 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:37:29,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3572 states. [2020-10-26 20:37:29,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3572 to 2871. [2020-10-26 20:37:29,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2871 states. [2020-10-26 20:37:29,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2871 states to 2871 states and 3689 transitions. [2020-10-26 20:37:29,642 INFO L78 Accepts]: Start accepts. Automaton has 2871 states and 3689 transitions. Word has length 151 [2020-10-26 20:37:29,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:29,642 INFO L481 AbstractCegarLoop]: Abstraction has 2871 states and 3689 transitions. [2020-10-26 20:37:29,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:37:29,643 INFO L276 IsEmpty]: Start isEmpty. Operand 2871 states and 3689 transitions. [2020-10-26 20:37:29,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-26 20:37:29,653 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:29,653 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:29,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:37:29,653 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:29,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:29,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1277572290, now seen corresponding path program 1 times [2020-10-26 20:37:29,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:29,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1351251232] [2020-10-26 20:37:29,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:29,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:29,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:29,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:29,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:31,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:34,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:34,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-10-26 20:37:34,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:37:34,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4368 [2020-10-26 20:37:34,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:34,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:37:34,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:34,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-26 20:37:34,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:34,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:34,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:34,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:34,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:34,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:34,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:37:34,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:34,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:34,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:34,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:34,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:34,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:34,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:34,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:34,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:37:34,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:34,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-26 20:37:34,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:34,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:34,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:34,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:37:34,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:37:34,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 20:37:34,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:34,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:34,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:34,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:37:34,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:34,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:37:34,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:34,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:34,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:37:34,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:34,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:34,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-26 20:37:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:34,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:34,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:34,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-26 20:37:34,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:34,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:37:34,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:34,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:34,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-26 20:37:34,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:34,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:34,434 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 82 proven. 38 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-26 20:37:34,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1351251232] [2020-10-26 20:37:34,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:34,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:34,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011548447] [2020-10-26 20:37:34,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:34,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:34,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:34,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:34,437 INFO L87 Difference]: Start difference. First operand 2871 states and 3689 transitions. Second operand 7 states. [2020-10-26 20:37:36,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:36,350 INFO L93 Difference]: Finished difference Result 5752 states and 7416 transitions. [2020-10-26 20:37:36,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:37:36,352 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 209 [2020-10-26 20:37:36,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:36,368 INFO L225 Difference]: With dead ends: 5752 [2020-10-26 20:37:36,369 INFO L226 Difference]: Without dead ends: 2887 [2020-10-26 20:37:36,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:37:36,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2887 states. [2020-10-26 20:37:36,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2887 to 2873. [2020-10-26 20:37:36,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2873 states. [2020-10-26 20:37:36,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2873 states to 2873 states and 3646 transitions. [2020-10-26 20:37:36,482 INFO L78 Accepts]: Start accepts. Automaton has 2873 states and 3646 transitions. Word has length 209 [2020-10-26 20:37:36,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:36,482 INFO L481 AbstractCegarLoop]: Abstraction has 2873 states and 3646 transitions. [2020-10-26 20:37:36,482 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:36,482 INFO L276 IsEmpty]: Start isEmpty. Operand 2873 states and 3646 transitions. [2020-10-26 20:37:36,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-26 20:37:36,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:36,493 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:36,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:37:36,494 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:36,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:36,495 INFO L82 PathProgramCache]: Analyzing trace with hash 707271012, now seen corresponding path program 1 times [2020-10-26 20:37:36,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:36,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [109449231] [2020-10-26 20:37:36,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:36,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:36,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:36,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:36,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:38,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:40,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:41,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-26 20:37:41,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:37:41,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4468 [2020-10-26 20:37:41,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:41,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:41,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:37:41,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:37:41,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:41,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:41,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:41,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:41,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:41,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:41,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:37:41,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:41,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:41,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:41,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:41,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:41,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:41,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:41,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:41,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:41,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:37:41,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:41,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:37:41,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:41,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:41,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:41,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:37:41,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:41,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:37:41,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:41,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:41,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:41,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:37:41,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:41,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-26 20:37:41,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:41,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:41,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:41,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:37:41,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:41,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:37:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:41,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:41,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:41,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:37:41,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:41,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:37:41,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:41,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:41,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:37:41,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:41,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:41,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-26 20:37:41,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:41,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:41,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:41,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-26 20:37:41,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:41,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 20:37:41,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:41,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:41,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-26 20:37:41,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:41,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:41,471 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 100 proven. 44 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 20:37:41,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [109449231] [2020-10-26 20:37:41,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:41,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:41,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063150137] [2020-10-26 20:37:41,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:41,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:41,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:41,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:41,475 INFO L87 Difference]: Start difference. First operand 2873 states and 3646 transitions. Second operand 7 states. [2020-10-26 20:37:43,016 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:37:43,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:43,344 INFO L93 Difference]: Finished difference Result 5893 states and 7461 transitions. [2020-10-26 20:37:43,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 20:37:43,345 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 217 [2020-10-26 20:37:43,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:43,360 INFO L225 Difference]: With dead ends: 5893 [2020-10-26 20:37:43,360 INFO L226 Difference]: Without dead ends: 3026 [2020-10-26 20:37:43,369 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:37:43,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3026 states. [2020-10-26 20:37:43,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3026 to 3010. [2020-10-26 20:37:43,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3010 states. [2020-10-26 20:37:43,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3010 states to 3010 states and 3761 transitions. [2020-10-26 20:37:43,467 INFO L78 Accepts]: Start accepts. Automaton has 3010 states and 3761 transitions. Word has length 217 [2020-10-26 20:37:43,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:43,467 INFO L481 AbstractCegarLoop]: Abstraction has 3010 states and 3761 transitions. [2020-10-26 20:37:43,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:43,468 INFO L276 IsEmpty]: Start isEmpty. Operand 3010 states and 3761 transitions. [2020-10-26 20:37:43,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-26 20:37:43,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:43,479 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:43,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:37:43,480 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:43,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:43,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1092433525, now seen corresponding path program 1 times [2020-10-26 20:37:43,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:43,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1294019433] [2020-10-26 20:37:43,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:43,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:43,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:43,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:44,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:44,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:44,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-26 20:37:44,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:37:44,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 785 [2020-10-26 20:37:44,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:44,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:37:44,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-26 20:37:44,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-26 20:37:44,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:44,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:44,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:44,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:44,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:44,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:44,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:37:44,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:44,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:44,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:44,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:44,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:44,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:44,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:44,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:44,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:37:44,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:44,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 20:37:44,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:44,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:44,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:44,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:44,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:37:44,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:37:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:44,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:44,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:44,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:37:44,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:44,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-26 20:37:44,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:44,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:44,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:44,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-26 20:37:44,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:44,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:37:44,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:44,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:44,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:44,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:44,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-26 20:37:44,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:44,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-26 20:37:44,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:44,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:44,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:44,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-26 20:37:44,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:44,865 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 106 proven. 56 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-26 20:37:44,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1294019433] [2020-10-26 20:37:44,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:44,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:37:44,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297928092] [2020-10-26 20:37:44,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:37:44,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:44,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:37:44,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:37:44,867 INFO L87 Difference]: Start difference. First operand 3010 states and 3761 transitions. Second operand 6 states. [2020-10-26 20:37:46,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:46,488 INFO L93 Difference]: Finished difference Result 5894 states and 7406 transitions. [2020-10-26 20:37:46,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:37:46,489 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 234 [2020-10-26 20:37:46,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:46,490 INFO L225 Difference]: With dead ends: 5894 [2020-10-26 20:37:46,491 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:37:46,503 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:37:46,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:37:46,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:37:46,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:37:46,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:37:46,504 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 234 [2020-10-26 20:37:46,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:46,505 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:37:46,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:37:46,505 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:37:46,505 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:37:46,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:37:46,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:37:47,167 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 17 [2020-10-26 20:37:47,398 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 17 [2020-10-26 20:37:47,649 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 36 [2020-10-26 20:37:48,295 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 37 [2020-10-26 20:37:48,664 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 19 [2020-10-26 20:37:48,668 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:37:48,669 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:37:48,669 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:37:48,669 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:37:48,669 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:37:48,670 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-26 20:37:48,670 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:37:48,670 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,670 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,670 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,670 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,670 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,670 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,670 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-26 20:37:48,671 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-26 20:37:48,671 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-26 20:37:48,671 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-26 20:37:48,671 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-26 20:37:48,671 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-26 20:37:48,671 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-26 20:37:48,671 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-26 20:37:48,671 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-26 20:37:48,672 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-26 20:37:48,672 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-26 20:37:48,672 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-26 20:37:48,672 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,672 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,672 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,672 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,672 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,672 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,673 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-26 20:37:48,673 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-26 20:37:48,673 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-26 20:37:48,673 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-26 20:37:48,673 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-26 20:37:48,673 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-26 20:37:48,673 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-26 20:37:48,673 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-26 20:37:48,673 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-26 20:37:48,673 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-26 20:37:48,674 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,674 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,674 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,674 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,674 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,674 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,674 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-26 20:37:48,674 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-26 20:37:48,674 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-26 20:37:48,675 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-26 20:37:48,675 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-26 20:37:48,675 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-26 20:37:48,675 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-26 20:37:48,675 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-26 20:37:48,675 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-26 20:37:48,675 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-26 20:37:48,675 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-26 20:37:48,676 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-26 20:37:48,676 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-26 20:37:48,676 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-26 20:37:48,676 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-26 20:37:48,676 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,676 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,676 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,676 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,676 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,677 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-26 20:37:48,677 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-26 20:37:48,677 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-26 20:37:48,677 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-26 20:37:48,677 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-26 20:37:48,677 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-26 20:37:48,677 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-26 20:37:48,677 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-26 20:37:48,677 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-26 20:37:48,677 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,677 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,678 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,678 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,678 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,678 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-26 20:37:48,678 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-26 20:37:48,678 INFO L270 CegarLoopResult]: At program point L511(line 511) the Hoare annotation is: (let ((.cse0 (not (= |old(~a21~0)| 1))) (.cse1 (= |old(~a17~0)| |old(~a21~0)|))) (and (or (not (<= 15 |old(~a8~0)|)) .cse0) (not (= |old(~a20~0)| 1)) (or .cse1 .cse0) (or (not (= |old(~a17~0)| 1)) .cse1))) [2020-10-26 20:37:48,678 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-26 20:37:48,678 INFO L274 CegarLoopResult]: For program point L511-1(line 511) no Hoare annotation was computed. [2020-10-26 20:37:48,678 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-26 20:37:48,679 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-26 20:37:48,679 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-26 20:37:48,679 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-26 20:37:48,679 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-26 20:37:48,679 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-26 20:37:48,679 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-26 20:37:48,679 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-26 20:37:48,679 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-26 20:37:48,679 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,679 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,680 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,680 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,680 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,680 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-26 20:37:48,680 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-26 20:37:48,680 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-26 20:37:48,680 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,680 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,680 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-26 20:37:48,680 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-26 20:37:48,680 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-26 20:37:48,681 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-26 20:37:48,681 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-26 20:37:48,681 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-26 20:37:48,681 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,681 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,681 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,681 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,681 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-26 20:37:48,681 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,681 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-26 20:37:48,682 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-26 20:37:48,682 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-26 20:37:48,682 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-26 20:37:48,682 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-26 20:37:48,682 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-26 20:37:48,682 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-26 20:37:48,682 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-26 20:37:48,682 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-26 20:37:48,682 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-26 20:37:48,682 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-26 20:37:48,682 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-26 20:37:48,683 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-26 20:37:48,683 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,683 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,683 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,683 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,683 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,683 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-26 20:37:48,683 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-26 20:37:48,683 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-26 20:37:48,683 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-26 20:37:48,683 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-26 20:37:48,683 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-26 20:37:48,683 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-26 20:37:48,684 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-26 20:37:48,684 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,684 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,684 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse4 (= ~a7~0 |old(~a7~0)|)) (.cse5 (= ~a17~0 |old(~a17~0)|)) (.cse6 (= ~a20~0 |old(~a20~0)|)) (.cse7 (= ~a16~0 |old(~a16~0)|)) (.cse8 (= ~a8~0 |old(~a8~0)|))) (let ((.cse0 (= |old(~a17~0)| |old(~a21~0)|)) (.cse2 (not (= |old(~a21~0)| 1))) (.cse3 (and .cse4 .cse5 (= ~a21~0 1) .cse6 .cse7 .cse8)) (.cse1 (and .cse4 .cse5 (= ~a21~0 |old(~a21~0)|) .cse6 .cse7 .cse8))) (and (or (not (= |old(~a17~0)| 1)) .cse0 .cse1) (or .cse0 .cse2 .cse3) (or (not (<= 15 |old(~a8~0)|)) .cse2 .cse3) (or (not (= |old(~a20~0)| 1)) .cse1)))) [2020-10-26 20:37:48,684 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,684 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,684 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,684 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-26 20:37:48,684 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-26 20:37:48,685 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-26 20:37:48,685 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-26 20:37:48,685 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-26 20:37:48,685 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-26 20:37:48,685 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-26 20:37:48,685 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-26 20:37:48,685 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-26 20:37:48,685 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-26 20:37:48,685 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-26 20:37:48,685 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,685 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,685 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,686 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,686 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-26 20:37:48,686 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,686 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,686 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-26 20:37:48,686 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-26 20:37:48,686 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-26 20:37:48,686 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-26 20:37:48,686 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-26 20:37:48,686 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-26 20:37:48,686 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-26 20:37:48,686 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-26 20:37:48,686 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-26 20:37:48,687 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-26 20:37:48,687 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-26 20:37:48,687 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-26 20:37:48,687 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,687 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,687 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,687 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,687 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,687 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-26 20:37:48,687 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:48,687 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-26 20:37:48,687 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-26 20:37:48,688 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-26 20:37:48,688 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-26 20:37:48,688 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-26 20:37:48,688 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-26 20:37:48,688 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-26 20:37:48,688 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-26 20:37:48,688 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-26 20:37:48,688 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-26 20:37:48,688 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-26 20:37:48,688 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-26 20:37:48,688 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-26 20:37:48,689 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-26 20:37:48,689 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:37:48,689 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a20~0 1) (= ~a21~0 ~a20~0) (= 5 ~a16~0) (= ~a7~0 0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-10-26 20:37:48,689 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:37:48,689 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:37:48,689 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 |old(~a8~0)|) (= ~a21~0 ~a20~0) (= 5 ~a16~0) (= ~a7~0 0)) (not (= |old(~a17~0)| 1)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| |old(~a21~0)|)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (not (= |old(~a7~0)| 0))) [2020-10-26 20:37:48,689 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:37:48,690 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse1 (not (= ~a21~0 ~a17~0))) (.cse0 (= ~a17~0 1))) (or (and .cse0 (<= 15 ~a8~0)) (not (= |old(~a17~0)| 1)) (not (<= 15 |old(~a8~0)|)) (and .cse1 (= ~a21~0 1)) (= ~a20~0 1) (not (= |old(~a20~0)| |old(~a21~0)|)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (and .cse1 .cse0) (not (= |old(~a7~0)| 0)))) [2020-10-26 20:37:48,690 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-26 20:37:48,690 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-26 20:37:48,690 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse1 (not (= ~a21~0 ~a17~0))) (.cse0 (= ~a17~0 1))) (or (and .cse0 (<= 15 ~a8~0)) (not (= |old(~a17~0)| 1)) (not (<= 15 |old(~a8~0)|)) (and .cse1 (= ~a21~0 1)) (= ~a20~0 1) (not (= |old(~a20~0)| |old(~a21~0)|)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (and .cse1 .cse0) (not (= |old(~a7~0)| 0)))) [2020-10-26 20:37:48,690 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:37:48,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:37:48 BoogieIcfgContainer [2020-10-26 20:37:48,711 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:37:48,713 INFO L168 Benchmark]: Toolchain (without parser) took 64930.70 ms. Allocated memory was 151.0 MB in the beginning and 941.6 MB in the end (delta: 790.6 MB). Free memory was 129.4 MB in the beginning and 852.4 MB in the end (delta: -723.0 MB). Peak memory consumption was 565.8 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:48,713 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory was 123.5 MB in the beginning and 123.5 MB in the end (delta: 71.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:37:48,714 INFO L168 Benchmark]: CACSL2BoogieTranslator took 830.55 ms. Allocated memory is still 151.0 MB. Free memory was 128.9 MB in the beginning and 123.6 MB in the end (delta: 5.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:48,715 INFO L168 Benchmark]: Boogie Preprocessor took 179.36 ms. Allocated memory is still 151.0 MB. Free memory was 123.6 MB in the beginning and 118.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:48,715 INFO L168 Benchmark]: RCFGBuilder took 1487.30 ms. Allocated memory is still 151.0 MB. Free memory was 118.9 MB in the beginning and 61.7 MB in the end (delta: 57.2 MB). Peak memory consumption was 58.1 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:48,716 INFO L168 Benchmark]: TraceAbstraction took 62418.60 ms. Allocated memory was 151.0 MB in the beginning and 941.6 MB in the end (delta: 790.6 MB). Free memory was 61.2 MB in the beginning and 852.4 MB in the end (delta: -791.2 MB). Peak memory consumption was 496.4 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:48,719 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory was 123.5 MB in the beginning and 123.5 MB in the end (delta: 71.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 830.55 ms. Allocated memory is still 151.0 MB. Free memory was 128.9 MB in the beginning and 123.6 MB in the end (delta: 5.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 179.36 ms. Allocated memory is still 151.0 MB. Free memory was 123.6 MB in the beginning and 118.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1487.30 ms. Allocated memory is still 151.0 MB. Free memory was 118.9 MB in the beginning and 61.7 MB in the end (delta: 57.2 MB). Peak memory consumption was 58.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 62418.60 ms. Allocated memory was 151.0 MB in the beginning and 941.6 MB in the end (delta: 790.6 MB). Free memory was 61.2 MB in the beginning and 852.4 MB in the end (delta: -791.2 MB). Peak memory consumption was 496.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: (((((((((a17 == 1 && 15 <= a8) || !(\old(a17) == 1)) || !(15 <= \old(a8))) || (!(a21 == a17) && a21 == 1)) || a20 == 1) || !(\old(a20) == \old(a21))) || !(5 == \old(a16))) || !(\old(a21) == 1)) || (!(a21 == a17) && a17 == 1)) || !(\old(a7) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 60.1s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 18.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 256 SDtfs, 3967 SDslu, 345 SDs, 0 SdLazy, 7174 SolverSat, 1398 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 76 SyntacticMatches, 3 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3010occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 1027 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 272 PreInvPairs, 320 NumberOfFragments, 392 HoareAnnotationTreeSize, 272 FomulaSimplifications, 142365 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 9 FomulaSimplificationsInter, 3262 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 39.2s InterpolantComputationTime, 1628 NumberOfCodeBlocks, 1628 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1618 ConstructedInterpolants, 0 QuantifiedInterpolants, 946685 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 466/650 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...