/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 SingleStatement --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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:39:40,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:39:40,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:39:41,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:39:41,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:39:41,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:39:41,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:39:41,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:39:41,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:39:41,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:39:41,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:39:41,044 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:39:41,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:39:41,048 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:39:41,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:39:41,053 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:39:41,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:39:41,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:39:41,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:39:41,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:39:41,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:39:41,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:39:41,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:39:41,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:39:41,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:39:41,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:39:41,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:39:41,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:39:41,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:39:41,085 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:39:41,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:39:41,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:39:41,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:39:41,088 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:39:41,089 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:39:41,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:39:41,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:39:41,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:39:41,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:39:41,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:39:41,094 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:39:41,095 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 [2020-09-25 13:39:41,147 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:39:41,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:39:41,150 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:39:41,150 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:39:41,150 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:39:41,151 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:39:41,151 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:39:41,152 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:39:41,152 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:39:41,152 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:39:41,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:39:41,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:39:41,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:39:41,154 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:39:41,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:39:41,154 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:39:41,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:39:41,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:39:41,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:39:41,155 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:39:41,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:39:41,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:39:41,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:39:41,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:39:41,156 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:39:41,157 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:39:41,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:39:41,157 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:39:41,157 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:39:41,157 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> SingleStatement 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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:39:41,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:39:41,624 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:39:41,629 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:39:41,631 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:39:41,632 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:39:41,633 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-09-25 13:39:41,718 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/323d8ede2/0e02f80d37984058bdf0e1a5bf500940/FLAG545dba37d [2020-09-25 13:39:42,319 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:39:42,321 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-09-25 13:39:42,336 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/323d8ede2/0e02f80d37984058bdf0e1a5bf500940/FLAG545dba37d [2020-09-25 13:39:42,629 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/323d8ede2/0e02f80d37984058bdf0e1a5bf500940 [2020-09-25 13:39:42,642 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:39:42,647 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:39:42,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:39:42,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:39:42,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:39:42,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:39:42" (1/1) ... [2020-09-25 13:39:42,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45241865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:42, skipping insertion in model container [2020-09-25 13:39:42,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:39:42" (1/1) ... [2020-09-25 13:39:42,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:39:42,705 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:39:42,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:39:42,971 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:39:43,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:39:43,033 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:39:43,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:43 WrapperNode [2020-09-25 13:39:43,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:39:43,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:39:43,035 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:39:43,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:39:43,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:43" (1/1) ... [2020-09-25 13:39:43,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:43" (1/1) ... [2020-09-25 13:39:43,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:43" (1/1) ... [2020-09-25 13:39:43,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:43" (1/1) ... [2020-09-25 13:39:43,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:43" (1/1) ... [2020-09-25 13:39:43,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:43" (1/1) ... [2020-09-25 13:39:43,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:43" (1/1) ... [2020-09-25 13:39:43,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:39:43,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:39:43,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:39:43,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:39:43,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:43" (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 [2020-09-25 13:39:43,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:39:43,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:39:43,255 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 13:39:43,255 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:39:43,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:39:43,255 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 13:39:43,256 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 13:39:43,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 13:39:43,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:39:43,257 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:39:43,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:39:43,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:39:43,844 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:39:43,845 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 13:39:43,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:39:43 BoogieIcfgContainer [2020-09-25 13:39:43,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:39:43,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:39:43,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:39:43,859 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:39:43,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:39:42" (1/3) ... [2020-09-25 13:39:43,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36cf1ee2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:39:43, skipping insertion in model container [2020-09-25 13:39:43,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:43" (2/3) ... [2020-09-25 13:39:43,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36cf1ee2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:39:43, skipping insertion in model container [2020-09-25 13:39:43,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:39:43" (3/3) ... [2020-09-25 13:39:43,865 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2020-09-25 13:39:43,878 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:39:43,890 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-09-25 13:39:43,914 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-09-25 13:39:43,971 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:39:43,972 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:39:43,972 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:39:43,972 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:39:43,972 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:39:43,972 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:39:43,973 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:39:43,973 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:39:44,003 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-09-25 13:39:44,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 13:39:44,014 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:39:44,015 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] [2020-09-25 13:39:44,016 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:39:44,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:39:44,024 INFO L82 PathProgramCache]: Analyzing trace with hash -2016263875, now seen corresponding path program 1 times [2020-09-25 13:39:44,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:39:44,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1582319607] [2020-09-25 13:39:44,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:39:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:44,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:44,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:44,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 13:39:44,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:39:44,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-09-25 13:39:44,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:44,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:44,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:39:44,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 13:39:44,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:39:44,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 13:39:44,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:39:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:44,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:44,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:44,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:39:44,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:39:44,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:39:44,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:44,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:44,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:39:44,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:39:44,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:39:44,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:44,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:39:44,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1582319607] [2020-09-25 13:39:44,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:39:44,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 13:39:44,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757987980] [2020-09-25 13:39:44,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:39:44,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:39:44,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:39:44,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:39:44,745 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 7 states. [2020-09-25 13:39:45,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:39:45,571 INFO L93 Difference]: Finished difference Result 290 states and 336 transitions. [2020-09-25 13:39:45,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 13:39:45,573 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-09-25 13:39:45,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:39:45,590 INFO L225 Difference]: With dead ends: 290 [2020-09-25 13:39:45,590 INFO L226 Difference]: Without dead ends: 239 [2020-09-25 13:39:45,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-09-25 13:39:45,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-09-25 13:39:45,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 187. [2020-09-25 13:39:45,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-09-25 13:39:45,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 190 transitions. [2020-09-25 13:39:45,667 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 190 transitions. Word has length 38 [2020-09-25 13:39:45,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:39:45,668 INFO L479 AbstractCegarLoop]: Abstraction has 187 states and 190 transitions. [2020-09-25 13:39:45,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:39:45,668 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 190 transitions. [2020-09-25 13:39:45,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 13:39:45,670 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:39:45,670 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] [2020-09-25 13:39:45,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:39:45,671 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:39:45,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:39:45,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1105206656, now seen corresponding path program 1 times [2020-09-25 13:39:45,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:39:45,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [391162087] [2020-09-25 13:39:45,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:39:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:45,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:45,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:45,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 13:39:45,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:39:45,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-09-25 13:39:45,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:45,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:45,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:39:45,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 13:39:45,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:39:45,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:45,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:39:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:45,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:45,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:45,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:39:45,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:39:45,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:39:45,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:45,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:45,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:39:45,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:39:45,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:39:45,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:45,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:39:45,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [391162087] [2020-09-25 13:39:45,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:39:45,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 13:39:45,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272589523] [2020-09-25 13:39:45,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 13:39:45,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:39:45,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 13:39:45,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:39:45,973 INFO L87 Difference]: Start difference. First operand 187 states and 190 transitions. Second operand 8 states. [2020-09-25 13:39:46,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:39:46,308 INFO L93 Difference]: Finished difference Result 187 states and 190 transitions. [2020-09-25 13:39:46,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 13:39:46,308 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-09-25 13:39:46,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:39:46,312 INFO L225 Difference]: With dead ends: 187 [2020-09-25 13:39:46,313 INFO L226 Difference]: Without dead ends: 185 [2020-09-25 13:39:46,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 13:39:46,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-09-25 13:39:46,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2020-09-25 13:39:46,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-09-25 13:39:46,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 188 transitions. [2020-09-25 13:39:46,352 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 188 transitions. Word has length 43 [2020-09-25 13:39:46,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:39:46,353 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 188 transitions. [2020-09-25 13:39:46,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 13:39:46,354 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 188 transitions. [2020-09-25 13:39:46,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 13:39:46,357 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:39:46,358 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] [2020-09-25 13:39:46,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:39:46,360 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:39:46,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:39:46,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1193283001, now seen corresponding path program 1 times [2020-09-25 13:39:46,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:39:46,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [919520431] [2020-09-25 13:39:46,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:39:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:46,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:46,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:46,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 13:39:46,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:39:46,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-09-25 13:39:46,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:46,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:46,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:39:46,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 13:39:46,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 13:39:46,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:46,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:39:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:46,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:46,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:46,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:39:46,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:39:46,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:39:46,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:46,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:46,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:39:46,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:39:46,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:39:46,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:46,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:39:46,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [919520431] [2020-09-25 13:39:46,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:39:46,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 13:39:46,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796221451] [2020-09-25 13:39:46,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:39:46,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:39:46,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:39:46,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:39:46,672 INFO L87 Difference]: Start difference. First operand 185 states and 188 transitions. Second operand 7 states. [2020-09-25 13:39:47,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:39:47,228 INFO L93 Difference]: Finished difference Result 237 states and 242 transitions. [2020-09-25 13:39:47,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 13:39:47,230 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2020-09-25 13:39:47,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:39:47,233 INFO L225 Difference]: With dead ends: 237 [2020-09-25 13:39:47,233 INFO L226 Difference]: Without dead ends: 235 [2020-09-25 13:39:47,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 13:39:47,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-09-25 13:39:47,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 183. [2020-09-25 13:39:47,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-09-25 13:39:47,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 186 transitions. [2020-09-25 13:39:47,247 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 186 transitions. Word has length 53 [2020-09-25 13:39:47,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:39:47,248 INFO L479 AbstractCegarLoop]: Abstraction has 183 states and 186 transitions. [2020-09-25 13:39:47,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:39:47,248 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 186 transitions. [2020-09-25 13:39:47,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 13:39:47,249 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:39:47,250 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] [2020-09-25 13:39:47,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:39:47,250 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:39:47,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:39:47,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1236242579, now seen corresponding path program 1 times [2020-09-25 13:39:47,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:39:47,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1331211356] [2020-09-25 13:39:47,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:39:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:47,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:47,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:47,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:47,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 13:39:47,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:39:47,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 450 [2020-09-25 13:39:47,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:47,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:47,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:39:47,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 13:39:47,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 13:39:47,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:39:47,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:39:47,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:47,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:47,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:47,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:39:47,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:39:47,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:39:47,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:47,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:47,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:39:47,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:39:47,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:39:47,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:47,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:39:47,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1331211356] [2020-09-25 13:39:47,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:39:47,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 13:39:47,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126065268] [2020-09-25 13:39:47,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:39:47,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:39:47,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:39:47,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:39:47,802 INFO L87 Difference]: Start difference. First operand 183 states and 186 transitions. Second operand 7 states. [2020-09-25 13:39:48,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:39:48,033 INFO L93 Difference]: Finished difference Result 183 states and 186 transitions. [2020-09-25 13:39:48,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 13:39:48,034 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2020-09-25 13:39:48,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:39:48,037 INFO L225 Difference]: With dead ends: 183 [2020-09-25 13:39:48,037 INFO L226 Difference]: Without dead ends: 181 [2020-09-25 13:39:48,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:39:48,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-09-25 13:39:48,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2020-09-25 13:39:48,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-09-25 13:39:48,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 184 transitions. [2020-09-25 13:39:48,062 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 184 transitions. Word has length 58 [2020-09-25 13:39:48,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:39:48,063 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 184 transitions. [2020-09-25 13:39:48,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:39:48,064 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 184 transitions. [2020-09-25 13:39:48,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 13:39:48,065 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:39:48,066 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] [2020-09-25 13:39:48,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:39:48,066 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:39:48,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:39:48,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1703094031, now seen corresponding path program 1 times [2020-09-25 13:39:48,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:39:48,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1246636922] [2020-09-25 13:39:48,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:39:48,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:48,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:48,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:48,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:48,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:48,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 13:39:48,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:39:48,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 438 [2020-09-25 13:39:48,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:48,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:48,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:39:48,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 13:39:48,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 13:39:48,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:48,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:39:48,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:48,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:48,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:48,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:39:48,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:39:48,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:39:48,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:48,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:48,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:39:48,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:39:48,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:39:48,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:48,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:39:48,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1246636922] [2020-09-25 13:39:48,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:39:48,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 13:39:48,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126672693] [2020-09-25 13:39:48,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:39:48,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:39:48,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:39:48,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:39:48,619 INFO L87 Difference]: Start difference. First operand 181 states and 184 transitions. Second operand 7 states. [2020-09-25 13:39:49,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:39:49,283 INFO L93 Difference]: Finished difference Result 305 states and 311 transitions. [2020-09-25 13:39:49,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 13:39:49,284 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-09-25 13:39:49,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:39:49,287 INFO L225 Difference]: With dead ends: 305 [2020-09-25 13:39:49,287 INFO L226 Difference]: Without dead ends: 303 [2020-09-25 13:39:49,288 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-09-25 13:39:49,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-09-25 13:39:49,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 192. [2020-09-25 13:39:49,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-09-25 13:39:49,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 197 transitions. [2020-09-25 13:39:49,303 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 197 transitions. Word has length 64 [2020-09-25 13:39:49,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:39:49,304 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 197 transitions. [2020-09-25 13:39:49,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:39:49,304 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 197 transitions. [2020-09-25 13:39:49,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 13:39:49,307 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:39:49,307 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] [2020-09-25 13:39:49,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 13:39:49,308 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:39:49,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:39:49,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1179531825, now seen corresponding path program 1 times [2020-09-25 13:39:49,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:39:49,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1681582137] [2020-09-25 13:39:49,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:39:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:49,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:49,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:49,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:49,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 13:39:49,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:39:49,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 511 [2020-09-25 13:39:49,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:49,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:49,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:39:49,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 13:39:49,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 13:39:49,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:49,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:39:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:49,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:49,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:49,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:39:49,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:39:49,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:39:49,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:49,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:49,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:39:49,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:39:49,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:39:49,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:49,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:39:49,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1681582137] [2020-09-25 13:39:49,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:39:49,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 13:39:49,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685402020] [2020-09-25 13:39:49,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:39:49,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:39:49,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:39:49,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:39:49,972 INFO L87 Difference]: Start difference. First operand 192 states and 197 transitions. Second operand 7 states. [2020-09-25 13:39:51,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:39:51,078 INFO L93 Difference]: Finished difference Result 471 states and 480 transitions. [2020-09-25 13:39:51,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 13:39:51,079 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-25 13:39:51,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:39:51,087 INFO L225 Difference]: With dead ends: 471 [2020-09-25 13:39:51,088 INFO L226 Difference]: Without dead ends: 469 [2020-09-25 13:39:51,090 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2020-09-25 13:39:51,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-09-25 13:39:51,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 197. [2020-09-25 13:39:51,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-09-25 13:39:51,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 202 transitions. [2020-09-25 13:39:51,107 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 202 transitions. Word has length 69 [2020-09-25 13:39:51,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:39:51,109 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 202 transitions. [2020-09-25 13:39:51,109 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:39:51,110 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 202 transitions. [2020-09-25 13:39:51,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 13:39:51,119 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:39:51,119 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] [2020-09-25 13:39:51,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 13:39:51,120 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:39:51,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:39:51,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1472635957, now seen corresponding path program 1 times [2020-09-25 13:39:51,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:39:51,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1008893003] [2020-09-25 13:39:51,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:39:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:51,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:51,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:51,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:51,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:51,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:55,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:55,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 13:39:55,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:39:55,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3999 [2020-09-25 13:39:55,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:55,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:55,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:39:55,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 13:39:55,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 13:39:55,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:55,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:39:55,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:55,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:55,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:55,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:39:55,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:39:55,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:39:55,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:55,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:55,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:39:55,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:39:55,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:39:55,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:55,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:39:55,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1008893003] [2020-09-25 13:39:55,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:39:55,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 13:39:55,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267541718] [2020-09-25 13:39:55,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:39:55,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:39:55,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:39:55,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:39:55,242 INFO L87 Difference]: Start difference. First operand 197 states and 202 transitions. Second operand 7 states. [2020-09-25 13:39:55,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:39:55,528 INFO L93 Difference]: Finished difference Result 197 states and 202 transitions. [2020-09-25 13:39:55,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 13:39:55,529 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-25 13:39:55,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:39:55,531 INFO L225 Difference]: With dead ends: 197 [2020-09-25 13:39:55,531 INFO L226 Difference]: Without dead ends: 195 [2020-09-25 13:39:55,532 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:39:55,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-09-25 13:39:55,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2020-09-25 13:39:55,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-25 13:39:55,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 200 transitions. [2020-09-25 13:39:55,543 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 200 transitions. Word has length 69 [2020-09-25 13:39:55,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:39:55,544 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 200 transitions. [2020-09-25 13:39:55,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:39:55,544 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 200 transitions. [2020-09-25 13:39:55,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-25 13:39:55,546 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:39:55,546 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] [2020-09-25 13:39:55,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 13:39:55,547 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:39:55,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:39:55,547 INFO L82 PathProgramCache]: Analyzing trace with hash 645172388, now seen corresponding path program 1 times [2020-09-25 13:39:55,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:39:55,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2011210938] [2020-09-25 13:39:55,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:39:55,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:55,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:55,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:55,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:57,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:57,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 13:39:57,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:39:57,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1645 [2020-09-25 13:39:57,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:57,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:57,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:39:57,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 13:39:57,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 13:39:57,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:57,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:39:57,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:57,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:57,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:57,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:39:57,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:39:57,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:39:57,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:57,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:57,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:39:57,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:39:57,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:39:57,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:57,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:39:57,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2011210938] [2020-09-25 13:39:57,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:39:57,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 13:39:57,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141751905] [2020-09-25 13:39:57,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:39:57,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:39:57,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:39:57,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:39:57,300 INFO L87 Difference]: Start difference. First operand 195 states and 200 transitions. Second operand 7 states. [2020-09-25 13:39:57,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:39:57,841 INFO L93 Difference]: Finished difference Result 297 states and 303 transitions. [2020-09-25 13:39:57,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 13:39:57,842 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-09-25 13:39:57,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:39:57,844 INFO L225 Difference]: With dead ends: 297 [2020-09-25 13:39:57,845 INFO L226 Difference]: Without dead ends: 295 [2020-09-25 13:39:57,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-09-25 13:39:57,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-25 13:39:57,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 193. [2020-09-25 13:39:57,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-09-25 13:39:57,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 198 transitions. [2020-09-25 13:39:57,858 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 198 transitions. Word has length 74 [2020-09-25 13:39:57,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:39:57,859 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 198 transitions. [2020-09-25 13:39:57,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:39:57,859 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 198 transitions. [2020-09-25 13:39:57,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-25 13:39:57,866 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:39:57,867 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] [2020-09-25 13:39:57,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 13:39:57,867 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:39:57,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:39:57,868 INFO L82 PathProgramCache]: Analyzing trace with hash -2127372300, now seen corresponding path program 1 times [2020-09-25 13:39:57,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:39:57,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1311304784] [2020-09-25 13:39:57,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:39:57,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:57,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:57,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:57,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:58,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:59,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:59,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 13:39:59,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:39:59,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1771 [2020-09-25 13:39:59,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:59,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:59,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:39:59,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 13:39:59,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 13:39:59,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:59,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:39:59,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:59,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:59,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:59,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:39:59,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:39:59,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:39:59,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:59,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:59,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:39:59,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:39:59,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:39:59,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:59,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:39:59,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1311304784] [2020-09-25 13:39:59,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:39:59,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 13:39:59,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905981434] [2020-09-25 13:39:59,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 13:39:59,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:39:59,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 13:39:59,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:39:59,779 INFO L87 Difference]: Start difference. First operand 193 states and 198 transitions. Second operand 8 states. [2020-09-25 13:40:00,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:40:00,254 INFO L93 Difference]: Finished difference Result 204 states and 209 transitions. [2020-09-25 13:40:00,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 13:40:00,255 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 75 [2020-09-25 13:40:00,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:40:00,256 INFO L225 Difference]: With dead ends: 204 [2020-09-25 13:40:00,257 INFO L226 Difference]: Without dead ends: 202 [2020-09-25 13:40:00,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-09-25 13:40:00,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-09-25 13:40:00,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 191. [2020-09-25 13:40:00,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-25 13:40:00,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 196 transitions. [2020-09-25 13:40:00,265 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 196 transitions. Word has length 75 [2020-09-25 13:40:00,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:40:00,265 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 196 transitions. [2020-09-25 13:40:00,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 13:40:00,266 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 196 transitions. [2020-09-25 13:40:00,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-25 13:40:00,267 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:40:00,267 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] [2020-09-25 13:40:00,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 13:40:00,267 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:40:00,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:40:00,268 INFO L82 PathProgramCache]: Analyzing trace with hash 2079623045, now seen corresponding path program 1 times [2020-09-25 13:40:00,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:40:00,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1509053120] [2020-09-25 13:40:00,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:40:00,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:40:00,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:00,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:00,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:00,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:00,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:00,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:01,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:05,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:40:05,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-25 13:40:05,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 13:40:05,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 13:40:05,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:40:05,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:40:05,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:40:05,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-25 13:40:05,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 13:40:05,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:40:05,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:40:05,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:40:05,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:05,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:40:05,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:40:05,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:40:05,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:40:05,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:40:05,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:40:05,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:40:05,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:40:05,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:40:05,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:40:05,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:40:05,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1509053120] [2020-09-25 13:40:05,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:40:05,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 13:40:05,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421072629] [2020-09-25 13:40:05,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:40:05,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:40:05,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:40:05,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:40:05,359 INFO L87 Difference]: Start difference. First operand 191 states and 196 transitions. Second operand 7 states. [2020-09-25 13:40:05,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:40:05,929 INFO L93 Difference]: Finished difference Result 288 states and 294 transitions. [2020-09-25 13:40:05,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 13:40:05,929 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 80 [2020-09-25 13:40:05,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:40:05,931 INFO L225 Difference]: With dead ends: 288 [2020-09-25 13:40:05,931 INFO L226 Difference]: Without dead ends: 286 [2020-09-25 13:40:05,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:40:05,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-09-25 13:40:05,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 212. [2020-09-25 13:40:05,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-09-25 13:40:05,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 217 transitions. [2020-09-25 13:40:05,941 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 217 transitions. Word has length 80 [2020-09-25 13:40:05,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:40:05,942 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 217 transitions. [2020-09-25 13:40:05,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:40:05,942 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 217 transitions. [2020-09-25 13:40:05,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 13:40:05,943 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:40:05,943 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] [2020-09-25 13:40:05,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 13:40:05,944 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:40:05,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:40:05,944 INFO L82 PathProgramCache]: Analyzing trace with hash -111708917, now seen corresponding path program 1 times [2020-09-25 13:40:05,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:40:05,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1088797653] [2020-09-25 13:40:05,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:40:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:40:05,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:05,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:06,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:06,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:10,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:40:10,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 13:40:10,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:40:10,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 13:40:10,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:40:10,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:40:10,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:40:10,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 13:40:10,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 13:40:10,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:40:11,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:40:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:40:11,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:11,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:40:11,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:40:11,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:40:11,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:40:11,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:40:11,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:40:11,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:40:11,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:40:11,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:40:11,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:40:11,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:40:11,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1088797653] [2020-09-25 13:40:11,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:40:11,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 13:40:11,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320279636] [2020-09-25 13:40:11,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:40:11,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:40:11,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:40:11,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:40:11,025 INFO L87 Difference]: Start difference. First operand 212 states and 217 transitions. Second operand 7 states. [2020-09-25 13:40:11,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:40:11,367 INFO L93 Difference]: Finished difference Result 212 states and 217 transitions. [2020-09-25 13:40:11,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 13:40:11,368 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-09-25 13:40:11,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:40:11,370 INFO L225 Difference]: With dead ends: 212 [2020-09-25 13:40:11,371 INFO L226 Difference]: Without dead ends: 210 [2020-09-25 13:40:11,372 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:40:11,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-09-25 13:40:11,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 189. [2020-09-25 13:40:11,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-09-25 13:40:11,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 194 transitions. [2020-09-25 13:40:11,384 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 194 transitions. Word has length 85 [2020-09-25 13:40:11,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:40:11,385 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 194 transitions. [2020-09-25 13:40:11,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:40:11,385 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 194 transitions. [2020-09-25 13:40:11,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 13:40:11,387 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:40:11,387 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:40:11,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 13:40:11,388 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:40:11,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:40:11,388 INFO L82 PathProgramCache]: Analyzing trace with hash 462594596, now seen corresponding path program 1 times [2020-09-25 13:40:11,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:40:11,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [837826759] [2020-09-25 13:40:11,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:40:11,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:40:11,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:11,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:11,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:13,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:40:13,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 13:40:13,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:40:13,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2151 [2020-09-25 13:40:13,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:40:13,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:40:13,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:40:13,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 13:40:13,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 13:40:13,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:40:13,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:40:13,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:40:13,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:13,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:40:13,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:40:13,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:40:13,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:40:13,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:40:13,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:40:13,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:40:13,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:40:13,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:40:13,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:40:13,687 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 13:40:13,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [837826759] [2020-09-25 13:40:13,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:40:13,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 13:40:13,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453266378] [2020-09-25 13:40:13,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 13:40:13,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:40:13,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 13:40:13,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:40:13,690 INFO L87 Difference]: Start difference. First operand 189 states and 194 transitions. Second operand 8 states. [2020-09-25 13:40:14,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:40:14,530 INFO L93 Difference]: Finished difference Result 301 states and 307 transitions. [2020-09-25 13:40:14,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 13:40:14,531 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2020-09-25 13:40:14,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:40:14,533 INFO L225 Difference]: With dead ends: 301 [2020-09-25 13:40:14,533 INFO L226 Difference]: Without dead ends: 299 [2020-09-25 13:40:14,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2020-09-25 13:40:14,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-09-25 13:40:14,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 182. [2020-09-25 13:40:14,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-25 13:40:14,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 187 transitions. [2020-09-25 13:40:14,543 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 187 transitions. Word has length 86 [2020-09-25 13:40:14,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:40:14,544 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 187 transitions. [2020-09-25 13:40:14,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 13:40:14,544 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 187 transitions. [2020-09-25 13:40:14,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 13:40:14,545 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:40:14,545 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] [2020-09-25 13:40:14,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 13:40:14,546 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:40:14,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:40:14,546 INFO L82 PathProgramCache]: Analyzing trace with hash -748130612, now seen corresponding path program 1 times [2020-09-25 13:40:14,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:40:14,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1193090613] [2020-09-25 13:40:14,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:40:14,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:40:14,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:14,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:14,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:16,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:40:16,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 13:40:16,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:40:16,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2083 [2020-09-25 13:40:16,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:40:16,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:40:16,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:40:16,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 13:40:16,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 13:40:16,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:40:16,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:40:16,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:40:16,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:16,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:40:16,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:40:16,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:40:16,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:40:16,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:40:16,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:40:16,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:40:16,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:40:16,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:40:16,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:40:16,773 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 13:40:16,773 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1193090613] [2020-09-25 13:40:16,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:40:16,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 13:40:16,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905857903] [2020-09-25 13:40:16,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 13:40:16,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:40:16,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 13:40:16,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:40:16,776 INFO L87 Difference]: Start difference. First operand 182 states and 187 transitions. Second operand 8 states. [2020-09-25 13:40:17,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:40:17,199 INFO L93 Difference]: Finished difference Result 193 states and 198 transitions. [2020-09-25 13:40:17,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 13:40:17,200 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2020-09-25 13:40:17,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:40:17,201 INFO L225 Difference]: With dead ends: 193 [2020-09-25 13:40:17,202 INFO L226 Difference]: Without dead ends: 191 [2020-09-25 13:40:17,202 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2020-09-25 13:40:17,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-09-25 13:40:17,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 169. [2020-09-25 13:40:17,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-09-25 13:40:17,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 172 transitions. [2020-09-25 13:40:17,209 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 172 transitions. Word has length 86 [2020-09-25 13:40:17,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:40:17,209 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 172 transitions. [2020-09-25 13:40:17,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 13:40:17,210 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 172 transitions. [2020-09-25 13:40:17,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-09-25 13:40:17,211 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:40:17,211 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] [2020-09-25 13:40:17,211 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 13:40:17,211 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:40:17,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:40:17,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1581381328, now seen corresponding path program 1 times [2020-09-25 13:40:17,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:40:17,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [101505976] [2020-09-25 13:40:17,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:40:17,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:40:17,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:17,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:17,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:17,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:17,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:17,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:22,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:40:22,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 13:40:22,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 13:40:22,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 13:40:22,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:40:22,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:40:22,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:40:22,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 13:40:22,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 13:40:22,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:40:22,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:40:22,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:40:22,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:22,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:40:22,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:40:22,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:40:22,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:40:22,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:40:22,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:40:22,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:40:22,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:40:22,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:40:22,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:40:22,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:40:22,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [101505976] [2020-09-25 13:40:22,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:40:22,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 13:40:22,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103834330] [2020-09-25 13:40:22,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 13:40:22,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:40:22,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 13:40:22,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:40:22,332 INFO L87 Difference]: Start difference. First operand 169 states and 172 transitions. Second operand 8 states. [2020-09-25 13:40:22,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:40:22,801 INFO L93 Difference]: Finished difference Result 180 states and 183 transitions. [2020-09-25 13:40:22,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 13:40:22,802 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 94 [2020-09-25 13:40:22,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:40:22,804 INFO L225 Difference]: With dead ends: 180 [2020-09-25 13:40:22,804 INFO L226 Difference]: Without dead ends: 178 [2020-09-25 13:40:22,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-09-25 13:40:22,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-09-25 13:40:22,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 167. [2020-09-25 13:40:22,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-09-25 13:40:22,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 170 transitions. [2020-09-25 13:40:22,812 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 170 transitions. Word has length 94 [2020-09-25 13:40:22,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:40:22,813 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 170 transitions. [2020-09-25 13:40:22,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 13:40:22,813 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 170 transitions. [2020-09-25 13:40:22,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-25 13:40:22,814 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:40:22,814 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] [2020-09-25 13:40:22,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 13:40:22,817 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:40:22,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:40:22,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1952981262, now seen corresponding path program 1 times [2020-09-25 13:40:22,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:40:22,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586986923] [2020-09-25 13:40:22,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:40:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:40:22,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:22,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:23,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:23,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:23,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:23,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:23,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:24,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:27,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:40:27,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-25 13:40:27,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 13:40:27,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 13:40:27,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:40:27,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:40:27,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:40:27,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-25 13:40:27,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 13:40:27,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:40:27,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:40:27,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:40:27,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:27,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:40:27,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:40:27,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:40:27,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:40:27,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:40:27,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:40:27,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:40:27,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:40:27,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:40:27,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:40:27,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:40:27,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586986923] [2020-09-25 13:40:27,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:40:27,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 13:40:27,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774707191] [2020-09-25 13:40:27,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 13:40:27,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:40:27,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 13:40:27,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:40:27,916 INFO L87 Difference]: Start difference. First operand 167 states and 170 transitions. Second operand 8 states. [2020-09-25 13:40:28,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:40:28,549 INFO L93 Difference]: Finished difference Result 260 states and 264 transitions. [2020-09-25 13:40:28,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 13:40:28,550 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2020-09-25 13:40:28,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:40:28,553 INFO L225 Difference]: With dead ends: 260 [2020-09-25 13:40:28,553 INFO L226 Difference]: Without dead ends: 258 [2020-09-25 13:40:28,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-09-25 13:40:28,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-09-25 13:40:28,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 207. [2020-09-25 13:40:28,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-09-25 13:40:28,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 210 transitions. [2020-09-25 13:40:28,563 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 210 transitions. Word has length 99 [2020-09-25 13:40:28,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:40:28,563 INFO L479 AbstractCegarLoop]: Abstraction has 207 states and 210 transitions. [2020-09-25 13:40:28,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 13:40:28,563 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 210 transitions. [2020-09-25 13:40:28,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-25 13:40:28,564 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:40:28,565 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] [2020-09-25 13:40:28,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 13:40:28,565 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:40:28,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:40:28,566 INFO L82 PathProgramCache]: Analyzing trace with hash -101561912, now seen corresponding path program 1 times [2020-09-25 13:40:28,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:40:28,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [690009493] [2020-09-25 13:40:28,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:40:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:40:28,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:28,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:28,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:28,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:40:28,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking...