/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 10:08:17,739 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 10:08:17,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 10:08:17,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 10:08:17,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 10:08:17,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 10:08:17,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 10:08:17,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 10:08:17,773 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 10:08:17,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 10:08:17,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 10:08:17,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 10:08:17,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 10:08:17,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 10:08:17,780 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 10:08:17,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 10:08:17,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 10:08:17,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 10:08:17,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 10:08:17,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 10:08:17,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 10:08:17,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 10:08:17,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 10:08:17,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 10:08:17,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 10:08:17,793 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 10:08:17,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 10:08:17,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 10:08:17,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 10:08:17,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 10:08:17,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 10:08:17,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 10:08:17,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 10:08:17,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 10:08:17,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 10:08:17,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 10:08:17,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 10:08:17,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 10:08:17,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 10:08:17,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 10:08:17,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 10:08:17,803 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 10:08:17,827 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 10:08:17,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 10:08:17,829 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 10:08:17,829 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 10:08:17,829 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 10:08:17,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 10:08:17,830 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 10:08:17,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 10:08:17,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 10:08:17,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 10:08:17,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 10:08:17,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 10:08:17,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 10:08:17,831 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 10:08:17,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 10:08:17,832 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 10:08:17,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 10:08:17,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 10:08:17,832 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 10:08:17,832 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 10:08:17,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 10:08:17,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 10:08:17,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 10:08:17,833 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 10:08:17,833 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 10:08:17,834 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 10:08:17,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 10:08:17,834 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 10:08:17,834 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 10:08:17,834 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 10:08:18,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 10:08:18,183 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 10:08:18,187 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 10:08:18,189 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 10:08:18,189 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 10:08:18,190 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1.cil-2.c [2020-10-14 10:08:18,254 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0905cd761/3fd6c0e2b07646dca3207e7d981242ed/FLAGff8227d05 [2020-10-14 10:08:18,786 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 10:08:18,787 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_1.cil-2.c [2020-10-14 10:08:18,799 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0905cd761/3fd6c0e2b07646dca3207e7d981242ed/FLAGff8227d05 [2020-10-14 10:08:19,072 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0905cd761/3fd6c0e2b07646dca3207e7d981242ed [2020-10-14 10:08:19,081 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 10:08:19,083 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 10:08:19,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 10:08:19,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 10:08:19,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 10:08:19,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:08:19" (1/1) ... [2020-10-14 10:08:19,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ccdc6d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:19, skipping insertion in model container [2020-10-14 10:08:19,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:08:19" (1/1) ... [2020-10-14 10:08:19,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 10:08:19,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 10:08:19,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 10:08:19,392 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 10:08:19,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 10:08:19,598 INFO L208 MainTranslator]: Completed translation [2020-10-14 10:08:19,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:19 WrapperNode [2020-10-14 10:08:19,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 10:08:19,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 10:08:19,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 10:08:19,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 10:08:19,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:19" (1/1) ... [2020-10-14 10:08:19,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:19" (1/1) ... [2020-10-14 10:08:19,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:19" (1/1) ... [2020-10-14 10:08:19,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:19" (1/1) ... [2020-10-14 10:08:19,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:19" (1/1) ... [2020-10-14 10:08:19,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:19" (1/1) ... [2020-10-14 10:08:19,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:19" (1/1) ... [2020-10-14 10:08:19,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 10:08:19,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 10:08:19,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 10:08:19,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 10:08:19,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:19" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 10:08:19,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 10:08:19,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 10:08:19,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-10-14 10:08:19,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR [2020-10-14 10:08:19,725 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 10:08:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 10:08:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 10:08:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 10:08:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-14 10:08:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure ERR [2020-10-14 10:08:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-10-14 10:08:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 10:08:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 10:08:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 10:08:19,989 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-14 10:08:20,477 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-10-14 10:08:20,478 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-10-14 10:08:20,491 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 10:08:20,491 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 10:08:20,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:08:20 BoogieIcfgContainer [2020-10-14 10:08:20,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 10:08:20,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 10:08:20,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 10:08:20,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 10:08:20,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:08:19" (1/3) ... [2020-10-14 10:08:20,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba47094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:08:20, skipping insertion in model container [2020-10-14 10:08:20,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:19" (2/3) ... [2020-10-14 10:08:20,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba47094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:08:20, skipping insertion in model container [2020-10-14 10:08:20,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:08:20" (3/3) ... [2020-10-14 10:08:20,507 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_1.cil-2.c [2020-10-14 10:08:20,518 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 10:08:20,527 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 10:08:20,543 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 10:08:20,571 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 10:08:20,571 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 10:08:20,572 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 10:08:20,572 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 10:08:20,572 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 10:08:20,572 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 10:08:20,573 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 10:08:20,573 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 10:08:20,597 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states. [2020-10-14 10:08:20,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-14 10:08:20,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:08:20,610 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] [2020-10-14 10:08:20,610 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:08:20,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:08:20,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1696698376, now seen corresponding path program 1 times [2020-10-14 10:08:20,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:08:20,627 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1920269849] [2020-10-14 10:08:20,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:08:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:20,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:21,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:21,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:21,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:21,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-14 10:08:21,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 10:08:21,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 499 [2020-10-14 10:08:21,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:21,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:21,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:08:21,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 10:08:21,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 10:08:21,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-14 10:08:21,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:08:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:21,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:21,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:21,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:08:21,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:08:21,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:08:21,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:21,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:21,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:08:21,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:08:21,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:08:21,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:08:21,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 10:08:21,390 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1920269849] [2020-10-14 10:08:21,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:08:21,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 10:08:21,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796600526] [2020-10-14 10:08:21,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 10:08:21,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:08:21,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 10:08:21,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:21,419 INFO L87 Difference]: Start difference. First operand 154 states. Second operand 3 states. [2020-10-14 10:08:21,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:08:21,534 INFO L93 Difference]: Finished difference Result 424 states and 713 transitions. [2020-10-14 10:08:21,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 10:08:21,536 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-10-14 10:08:21,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:08:21,551 INFO L225 Difference]: With dead ends: 424 [2020-10-14 10:08:21,552 INFO L226 Difference]: Without dead ends: 256 [2020-10-14 10:08:21,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:21,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-10-14 10:08:21,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2020-10-14 10:08:21,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-10-14 10:08:21,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 386 transitions. [2020-10-14 10:08:21,628 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 386 transitions. Word has length 51 [2020-10-14 10:08:21,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:08:21,629 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 386 transitions. [2020-10-14 10:08:21,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 10:08:21,631 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 386 transitions. [2020-10-14 10:08:21,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 10:08:21,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:08:21,638 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] [2020-10-14 10:08:21,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 10:08:21,638 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:08:21,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:08:21,639 INFO L82 PathProgramCache]: Analyzing trace with hash 2093113011, now seen corresponding path program 1 times [2020-10-14 10:08:21,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:08:21,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [221775756] [2020-10-14 10:08:21,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:08:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:21,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:21,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:21,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:21,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:21,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 10:08:21,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 10:08:21,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-14 10:08:21,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:21,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:21,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:08:21,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-14 10:08:21,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 10:08:21,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:08:21,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:08:21,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:21,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:21,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:21,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:08:21,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:08:21,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:08:21,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:21,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:21,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:08:21,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:08:21,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:08:21,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:08:21,932 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 10:08:21,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [221775756] [2020-10-14 10:08:21,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:08:21,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 10:08:21,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591430236] [2020-10-14 10:08:21,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 10:08:21,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:08:21,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 10:08:21,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:21,946 INFO L87 Difference]: Start difference. First operand 256 states and 386 transitions. Second operand 3 states. [2020-10-14 10:08:22,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:08:22,020 INFO L93 Difference]: Finished difference Result 499 states and 760 transitions. [2020-10-14 10:08:22,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 10:08:22,020 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-10-14 10:08:22,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:08:22,025 INFO L225 Difference]: With dead ends: 499 [2020-10-14 10:08:22,025 INFO L226 Difference]: Without dead ends: 376 [2020-10-14 10:08:22,027 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:22,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2020-10-14 10:08:22,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2020-10-14 10:08:22,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-14 10:08:22,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 568 transitions. [2020-10-14 10:08:22,057 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 568 transitions. Word has length 67 [2020-10-14 10:08:22,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:08:22,057 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 568 transitions. [2020-10-14 10:08:22,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 10:08:22,058 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 568 transitions. [2020-10-14 10:08:22,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 10:08:22,062 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:08:22,062 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:08:22,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 10:08:22,063 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:08:22,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:08:22,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1225245954, now seen corresponding path program 1 times [2020-10-14 10:08:22,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:08:22,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1944852857] [2020-10-14 10:08:22,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:08:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:22,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:22,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:22,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:22,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:22,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 10:08:22,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 10:08:22,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-10-14 10:08:22,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:22,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:22,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:08:22,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-14 10:08:22,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 10:08:22,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:08:22,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:08:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:22,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:22,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:22,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:08:22,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:08:22,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 10:08:22,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:22,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:22,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:08:22,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:08:22,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:08:22,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 10:08:22,466 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-14 10:08:22,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1944852857] [2020-10-14 10:08:22,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:08:22,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 10:08:22,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646434290] [2020-10-14 10:08:22,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 10:08:22,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:08:22,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 10:08:22,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:22,471 INFO L87 Difference]: Start difference. First operand 376 states and 568 transitions. Second operand 3 states. [2020-10-14 10:08:22,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:08:22,538 INFO L93 Difference]: Finished difference Result 739 states and 1124 transitions. [2020-10-14 10:08:22,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 10:08:22,538 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2020-10-14 10:08:22,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:08:22,542 INFO L225 Difference]: With dead ends: 739 [2020-10-14 10:08:22,542 INFO L226 Difference]: Without dead ends: 496 [2020-10-14 10:08:22,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:22,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-10-14 10:08:22,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2020-10-14 10:08:22,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-10-14 10:08:22,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 751 transitions. [2020-10-14 10:08:22,568 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 751 transitions. Word has length 88 [2020-10-14 10:08:22,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:08:22,568 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 751 transitions. [2020-10-14 10:08:22,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 10:08:22,569 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 751 transitions. [2020-10-14 10:08:22,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-14 10:08:22,572 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:08:22,572 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:08:22,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 10:08:22,573 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:08:22,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:08:22,573 INFO L82 PathProgramCache]: Analyzing trace with hash -105487368, now seen corresponding path program 1 times [2020-10-14 10:08:22,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:08:22,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1467939558] [2020-10-14 10:08:22,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:08:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:22,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:22,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:22,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 10:08:22,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:08:22,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 10:08:22,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:22,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:22,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:08:22,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 91 [2020-10-14 10:08:22,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 10:08:22,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:08:22,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:08:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:22,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:22,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:22,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:08:22,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:08:22,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:08:22,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:22,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:22,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:08:22,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:08:22,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:08:22,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:08:22,843 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-14 10:08:22,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1467939558] [2020-10-14 10:08:22,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:08:22,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 10:08:22,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072033728] [2020-10-14 10:08:22,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 10:08:22,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:08:22,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 10:08:22,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:22,851 INFO L87 Difference]: Start difference. First operand 496 states and 751 transitions. Second operand 3 states. [2020-10-14 10:08:22,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:08:22,947 INFO L93 Difference]: Finished difference Result 979 states and 1490 transitions. [2020-10-14 10:08:22,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 10:08:22,948 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2020-10-14 10:08:22,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:08:22,958 INFO L225 Difference]: With dead ends: 979 [2020-10-14 10:08:22,958 INFO L226 Difference]: Without dead ends: 616 [2020-10-14 10:08:22,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:22,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2020-10-14 10:08:22,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2020-10-14 10:08:22,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2020-10-14 10:08:22,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 935 transitions. [2020-10-14 10:08:22,988 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 935 transitions. Word has length 128 [2020-10-14 10:08:22,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:08:22,989 INFO L479 AbstractCegarLoop]: Abstraction has 616 states and 935 transitions. [2020-10-14 10:08:22,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 10:08:22,990 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 935 transitions. [2020-10-14 10:08:22,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-14 10:08:22,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:08:22,998 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 10:08:22,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 10:08:22,999 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:08:22,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:08:23,000 INFO L82 PathProgramCache]: Analyzing trace with hash -518008441, now seen corresponding path program 1 times [2020-10-14 10:08:23,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:08:23,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [68319176] [2020-10-14 10:08:23,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:08:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:23,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:23,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:23,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:23,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:23,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:23,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 10:08:23,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 10:08:23,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 439 [2020-10-14 10:08:23,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:23,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:23,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:08:23,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-10-14 10:08:23,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 10:08:23,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:08:23,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:08:23,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:23,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:23,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:23,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:08:23,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:08:23,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:08:23,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:23,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:23,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:08:23,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:08:23,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:08:23,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 10:08:23,572 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-10-14 10:08:23,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [68319176] [2020-10-14 10:08:23,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:08:23,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 10:08:23,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90164527] [2020-10-14 10:08:23,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 10:08:23,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:08:23,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 10:08:23,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:23,576 INFO L87 Difference]: Start difference. First operand 616 states and 935 transitions. Second operand 3 states. [2020-10-14 10:08:23,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:08:23,631 INFO L93 Difference]: Finished difference Result 739 states and 1123 transitions. [2020-10-14 10:08:23,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 10:08:23,632 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2020-10-14 10:08:23,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:08:23,637 INFO L225 Difference]: With dead ends: 739 [2020-10-14 10:08:23,637 INFO L226 Difference]: Without dead ends: 736 [2020-10-14 10:08:23,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:23,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2020-10-14 10:08:23,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 736. [2020-10-14 10:08:23,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 736 states. [2020-10-14 10:08:23,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1120 transitions. [2020-10-14 10:08:23,661 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1120 transitions. Word has length 166 [2020-10-14 10:08:23,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:08:23,661 INFO L479 AbstractCegarLoop]: Abstraction has 736 states and 1120 transitions. [2020-10-14 10:08:23,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 10:08:23,662 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1120 transitions. [2020-10-14 10:08:23,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-14 10:08:23,665 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:08:23,666 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:08:23,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 10:08:23,666 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:08:23,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:08:23,667 INFO L82 PathProgramCache]: Analyzing trace with hash -52195075, now seen corresponding path program 1 times [2020-10-14 10:08:23,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:08:23,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2072626680] [2020-10-14 10:08:23,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:08:23,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:23,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:23,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:23,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:24,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:24,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:24,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-10-14 10:08:24,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 10:08:24,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 622 [2020-10-14 10:08:24,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:24,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:24,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:08:24,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 10:08:24,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 10:08:24,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 10:08:24,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:08:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:24,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:24,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:24,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:08:24,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:08:24,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:08:24,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:24,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:24,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:08:24,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:08:24,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:08:24,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:08:24,413 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2020-10-14 10:08:24,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2072626680] [2020-10-14 10:08:24,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:08:24,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 10:08:24,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179454077] [2020-10-14 10:08:24,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 10:08:24,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:08:24,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 10:08:24,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:24,417 INFO L87 Difference]: Start difference. First operand 736 states and 1120 transitions. Second operand 3 states. [2020-10-14 10:08:24,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:08:24,688 INFO L93 Difference]: Finished difference Result 1783 states and 2793 transitions. [2020-10-14 10:08:24,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 10:08:24,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 208 [2020-10-14 10:08:24,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:08:24,695 INFO L225 Difference]: With dead ends: 1783 [2020-10-14 10:08:24,695 INFO L226 Difference]: Without dead ends: 988 [2020-10-14 10:08:24,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:24,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2020-10-14 10:08:24,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 982. [2020-10-14 10:08:24,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 982 states. [2020-10-14 10:08:24,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1420 transitions. [2020-10-14 10:08:24,725 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1420 transitions. Word has length 208 [2020-10-14 10:08:24,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:08:24,726 INFO L479 AbstractCegarLoop]: Abstraction has 982 states and 1420 transitions. [2020-10-14 10:08:24,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 10:08:24,726 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1420 transitions. [2020-10-14 10:08:24,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-14 10:08:24,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:08:24,731 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:08:24,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 10:08:24,731 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:08:24,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:08:24,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1907614557, now seen corresponding path program 1 times [2020-10-14 10:08:24,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:08:24,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1222332231] [2020-10-14 10:08:24,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:08:24,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:24,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:24,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:24,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:24,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:24,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:25,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:25,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:25,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:26,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:27,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:27,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-10-14 10:08:27,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 10:08:27,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3168 [2020-10-14 10:08:27,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:27,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:27,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:08:27,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-14 10:08:27,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 10:08:27,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:08:27,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:08:27,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:27,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:27,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:27,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:08:27,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:08:27,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:08:27,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:27,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:27,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:08:27,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:08:27,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:08:27,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:08:28,038 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-10-14 10:08:28,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1222332231] [2020-10-14 10:08:28,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:08:28,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 10:08:28,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100478504] [2020-10-14 10:08:28,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 10:08:28,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:08:28,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 10:08:28,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:28,040 INFO L87 Difference]: Start difference. First operand 982 states and 1420 transitions. Second operand 3 states. [2020-10-14 10:08:28,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:08:28,099 INFO L93 Difference]: Finished difference Result 2906 states and 4213 transitions. [2020-10-14 10:08:28,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 10:08:28,100 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-10-14 10:08:28,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:08:28,112 INFO L225 Difference]: With dead ends: 2906 [2020-10-14 10:08:28,112 INFO L226 Difference]: Without dead ends: 1937 [2020-10-14 10:08:28,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:28,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1937 states. [2020-10-14 10:08:28,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1937 to 1936. [2020-10-14 10:08:28,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1936 states. [2020-10-14 10:08:28,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1936 states to 1936 states and 2791 transitions. [2020-10-14 10:08:28,178 INFO L78 Accepts]: Start accepts. Automaton has 1936 states and 2791 transitions. Word has length 224 [2020-10-14 10:08:28,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:08:28,179 INFO L479 AbstractCegarLoop]: Abstraction has 1936 states and 2791 transitions. [2020-10-14 10:08:28,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 10:08:28,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1936 states and 2791 transitions. [2020-10-14 10:08:28,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-14 10:08:28,188 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:08:28,188 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:08:28,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 10:08:28,189 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:08:28,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:08:28,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1435274911, now seen corresponding path program 1 times [2020-10-14 10:08:28,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:08:28,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1031422783] [2020-10-14 10:08:28,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:08:28,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:28,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:28,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:28,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:28,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:28,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:28,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:28,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:28,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:28,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:29,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:30,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:32,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:32,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-10-14 10:08:32,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 10:08:32,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4337 [2020-10-14 10:08:32,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:32,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:32,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:08:32,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-14 10:08:32,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-14 10:08:32,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:08:32,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:08:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:32,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:32,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:32,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:08:32,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:08:32,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:08:32,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:32,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:32,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:08:32,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:08:32,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:08:32,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:08:32,703 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-10-14 10:08:32,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1031422783] [2020-10-14 10:08:32,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:08:32,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 10:08:32,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482193047] [2020-10-14 10:08:32,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 10:08:32,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:08:32,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 10:08:32,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:32,705 INFO L87 Difference]: Start difference. First operand 1936 states and 2791 transitions. Second operand 3 states. [2020-10-14 10:08:32,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:08:32,776 INFO L93 Difference]: Finished difference Result 3216 states and 4629 transitions. [2020-10-14 10:08:32,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 10:08:32,777 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-10-14 10:08:32,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:08:32,790 INFO L225 Difference]: With dead ends: 3216 [2020-10-14 10:08:32,791 INFO L226 Difference]: Without dead ends: 2253 [2020-10-14 10:08:32,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:32,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2253 states. [2020-10-14 10:08:32,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2253 to 2252. [2020-10-14 10:08:32,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2252 states. [2020-10-14 10:08:32,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2252 states to 2252 states and 3231 transitions. [2020-10-14 10:08:32,888 INFO L78 Accepts]: Start accepts. Automaton has 2252 states and 3231 transitions. Word has length 224 [2020-10-14 10:08:32,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:08:32,889 INFO L479 AbstractCegarLoop]: Abstraction has 2252 states and 3231 transitions. [2020-10-14 10:08:32,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 10:08:32,889 INFO L276 IsEmpty]: Start isEmpty. Operand 2252 states and 3231 transitions. [2020-10-14 10:08:32,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-14 10:08:32,898 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:08:32,898 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:08:32,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 10:08:32,898 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:08:32,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:08:32,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1233450977, now seen corresponding path program 1 times [2020-10-14 10:08:32,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:08:32,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1873498067] [2020-10-14 10:08:32,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:08:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:32,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:32,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:32,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:33,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:33,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:33,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:33,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:33,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:35,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:36,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:36,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-10-14 10:08:36,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 10:08:36,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3593 [2020-10-14 10:08:36,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:36,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:36,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:08:36,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-14 10:08:36,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 10:08:36,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:08:36,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:08:36,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:36,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:36,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:36,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:08:36,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:08:36,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:08:36,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:36,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:36,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:08:36,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:08:36,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:08:36,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:08:36,606 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-10-14 10:08:36,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1873498067] [2020-10-14 10:08:36,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:08:36,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 10:08:36,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250369604] [2020-10-14 10:08:36,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 10:08:36,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:08:36,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 10:08:36,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:36,611 INFO L87 Difference]: Start difference. First operand 2252 states and 3231 transitions. Second operand 3 states. [2020-10-14 10:08:36,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:08:36,996 INFO L93 Difference]: Finished difference Result 5163 states and 7657 transitions. [2020-10-14 10:08:36,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 10:08:36,997 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-10-14 10:08:36,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:08:37,019 INFO L225 Difference]: With dead ends: 5163 [2020-10-14 10:08:37,019 INFO L226 Difference]: Without dead ends: 2882 [2020-10-14 10:08:37,033 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:37,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2882 states. [2020-10-14 10:08:37,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2882 to 2812. [2020-10-14 10:08:37,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2812 states. [2020-10-14 10:08:37,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2812 states to 2812 states and 4239 transitions. [2020-10-14 10:08:37,193 INFO L78 Accepts]: Start accepts. Automaton has 2812 states and 4239 transitions. Word has length 224 [2020-10-14 10:08:37,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:08:37,194 INFO L479 AbstractCegarLoop]: Abstraction has 2812 states and 4239 transitions. [2020-10-14 10:08:37,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 10:08:37,195 INFO L276 IsEmpty]: Start isEmpty. Operand 2812 states and 4239 transitions. [2020-10-14 10:08:37,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2020-10-14 10:08:37,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:08:37,213 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:08:37,213 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 10:08:37,214 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:08:37,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:08:37,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1221159951, now seen corresponding path program 1 times [2020-10-14 10:08:37,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:08:37,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [845638150] [2020-10-14 10:08:37,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:08:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:37,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:37,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:37,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:37,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:37,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:38,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-10-14 10:08:38,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 10:08:38,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 735 [2020-10-14 10:08:38,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:38,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:38,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:08:38,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-14 10:08:38,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 10:08:38,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:08:38,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:08:38,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:38,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:38,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:38,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:08:38,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:08:38,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:08:38,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:38,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:38,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:08:38,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:08:38,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:08:38,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 10:08:38,166 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 408 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2020-10-14 10:08:38,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [845638150] [2020-10-14 10:08:38,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:08:38,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 10:08:38,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088745868] [2020-10-14 10:08:38,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 10:08:38,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:08:38,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 10:08:38,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:38,170 INFO L87 Difference]: Start difference. First operand 2812 states and 4239 transitions. Second operand 3 states. [2020-10-14 10:08:38,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:08:38,527 INFO L93 Difference]: Finished difference Result 6227 states and 9609 transitions. [2020-10-14 10:08:38,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 10:08:38,528 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 266 [2020-10-14 10:08:38,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:08:38,548 INFO L225 Difference]: With dead ends: 6227 [2020-10-14 10:08:38,549 INFO L226 Difference]: Without dead ends: 3428 [2020-10-14 10:08:38,556 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:38,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3428 states. [2020-10-14 10:08:38,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3428 to 3386. [2020-10-14 10:08:38,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2020-10-14 10:08:38,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 4925 transitions. [2020-10-14 10:08:38,662 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 4925 transitions. Word has length 266 [2020-10-14 10:08:38,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:08:38,663 INFO L479 AbstractCegarLoop]: Abstraction has 3386 states and 4925 transitions. [2020-10-14 10:08:38,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 10:08:38,663 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 4925 transitions. [2020-10-14 10:08:38,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-10-14 10:08:38,675 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:08:38,675 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:08:38,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 10:08:38,676 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:08:38,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:08:38,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1139234679, now seen corresponding path program 1 times [2020-10-14 10:08:38,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:08:38,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [648796802] [2020-10-14 10:08:38,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:08:38,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:38,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:38,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:38,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:38,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:38,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:38,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:39,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:39,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:40,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:40,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 290 [2020-10-14 10:08:40,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 10:08:40,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1905 [2020-10-14 10:08:40,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:40,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:40,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:08:40,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 107 [2020-10-14 10:08:40,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 10:08:40,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:08:40,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:08:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:40,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:40,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:40,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:08:40,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:08:40,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:08:40,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:40,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:40,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:08:40,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:08:40,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:08:40,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:08:40,727 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 433 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2020-10-14 10:08:40,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [648796802] [2020-10-14 10:08:40,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:08:40,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 10:08:40,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503262372] [2020-10-14 10:08:40,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 10:08:40,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:08:40,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 10:08:40,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:40,730 INFO L87 Difference]: Start difference. First operand 3386 states and 4925 transitions. Second operand 3 states. [2020-10-14 10:08:41,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:08:41,014 INFO L93 Difference]: Finished difference Result 7361 states and 10883 transitions. [2020-10-14 10:08:41,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 10:08:41,015 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 280 [2020-10-14 10:08:41,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:08:41,035 INFO L225 Difference]: With dead ends: 7361 [2020-10-14 10:08:41,035 INFO L226 Difference]: Without dead ends: 3862 [2020-10-14 10:08:41,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:41,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3862 states. [2020-10-14 10:08:41,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3862 to 3666. [2020-10-14 10:08:41,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3666 states. [2020-10-14 10:08:41,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3666 states to 3666 states and 5359 transitions. [2020-10-14 10:08:41,154 INFO L78 Accepts]: Start accepts. Automaton has 3666 states and 5359 transitions. Word has length 280 [2020-10-14 10:08:41,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:08:41,154 INFO L479 AbstractCegarLoop]: Abstraction has 3666 states and 5359 transitions. [2020-10-14 10:08:41,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 10:08:41,155 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 5359 transitions. [2020-10-14 10:08:41,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-10-14 10:08:41,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:08:41,166 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:08:41,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 10:08:41,167 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:08:41,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:08:41,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1413547600, now seen corresponding path program 1 times [2020-10-14 10:08:41,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:08:41,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [435414080] [2020-10-14 10:08:41,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:08:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:41,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:41,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:41,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:41,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:41,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:41,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:41,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:42,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:43,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:43,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:45,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:45,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-10-14 10:08:45,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 10:08:45,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3911 [2020-10-14 10:08:45,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:45,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:45,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:08:45,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 123 [2020-10-14 10:08:45,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 10:08:45,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:08:45,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:08:45,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:45,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:45,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:45,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:08:45,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:08:45,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:08:45,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:45,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:45,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:08:45,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:08:45,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:08:45,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:08:45,219 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 498 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2020-10-14 10:08:45,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [435414080] [2020-10-14 10:08:45,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:08:45,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 10:08:45,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033762644] [2020-10-14 10:08:45,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 10:08:45,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:08:45,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 10:08:45,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:45,221 INFO L87 Difference]: Start difference. First operand 3666 states and 5359 transitions. Second operand 3 states. [2020-10-14 10:08:45,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:08:45,496 INFO L93 Difference]: Finished difference Result 7951 states and 11795 transitions. [2020-10-14 10:08:45,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 10:08:45,496 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 296 [2020-10-14 10:08:45,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:08:45,519 INFO L225 Difference]: With dead ends: 7951 [2020-10-14 10:08:45,519 INFO L226 Difference]: Without dead ends: 4172 [2020-10-14 10:08:45,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:45,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4172 states. [2020-10-14 10:08:45,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4172 to 3960. [2020-10-14 10:08:45,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3960 states. [2020-10-14 10:08:45,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3960 states to 3960 states and 5849 transitions. [2020-10-14 10:08:45,648 INFO L78 Accepts]: Start accepts. Automaton has 3960 states and 5849 transitions. Word has length 296 [2020-10-14 10:08:45,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:08:45,649 INFO L479 AbstractCegarLoop]: Abstraction has 3960 states and 5849 transitions. [2020-10-14 10:08:45,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 10:08:45,649 INFO L276 IsEmpty]: Start isEmpty. Operand 3960 states and 5849 transitions. [2020-10-14 10:08:45,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-10-14 10:08:45,662 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:08:45,663 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:08:45,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 10:08:45,663 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:08:45,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:08:45,664 INFO L82 PathProgramCache]: Analyzing trace with hash 619124496, now seen corresponding path program 2 times [2020-10-14 10:08:45,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:08:45,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1979926126] [2020-10-14 10:08:45,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:08:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:45,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:45,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:45,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:45,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:45,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:45,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:46,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:46,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:48,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:48,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:50,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:50,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 319 [2020-10-14 10:08:50,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 10:08:50,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 10:08:50,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:50,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:50,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:08:50,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 10:08:50,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 10:08:50,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:08:50,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:08:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:50,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:50,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:50,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:08:50,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:08:50,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:08:50,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:50,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:50,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:08:50,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:08:50,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:08:50,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:08:50,783 INFO L134 CoverageAnalysis]: Checked inductivity of 850 backedges. 556 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-10-14 10:08:50,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1979926126] [2020-10-14 10:08:50,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:08:50,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 10:08:50,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374400957] [2020-10-14 10:08:50,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 10:08:50,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:08:50,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 10:08:50,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:50,786 INFO L87 Difference]: Start difference. First operand 3960 states and 5849 transitions. Second operand 3 states. [2020-10-14 10:08:50,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:08:50,992 INFO L93 Difference]: Finished difference Result 7749 states and 11341 transitions. [2020-10-14 10:08:50,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 10:08:50,993 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 309 [2020-10-14 10:08:50,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:08:51,016 INFO L225 Difference]: With dead ends: 7749 [2020-10-14 10:08:51,016 INFO L226 Difference]: Without dead ends: 2260 [2020-10-14 10:08:51,031 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:51,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2020-10-14 10:08:51,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 1702. [2020-10-14 10:08:51,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1702 states. [2020-10-14 10:08:51,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1702 states to 1702 states and 2494 transitions. [2020-10-14 10:08:51,085 INFO L78 Accepts]: Start accepts. Automaton has 1702 states and 2494 transitions. Word has length 309 [2020-10-14 10:08:51,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:08:51,085 INFO L479 AbstractCegarLoop]: Abstraction has 1702 states and 2494 transitions. [2020-10-14 10:08:51,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 10:08:51,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1702 states and 2494 transitions. [2020-10-14 10:08:51,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-10-14 10:08:51,094 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:08:51,094 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:08:51,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 10:08:51,095 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:08:51,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:08:51,095 INFO L82 PathProgramCache]: Analyzing trace with hash -387096878, now seen corresponding path program 1 times [2020-10-14 10:08:51,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:08:51,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [492807117] [2020-10-14 10:08:51,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:08:51,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:51,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:51,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:51,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:51,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:51,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:51,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:51,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:51,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:51,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:52,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:54,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:56,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:56,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 319 [2020-10-14 10:08:56,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 10:08:56,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 10:08:56,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:56,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:56,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:08:56,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-14 10:08:56,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 10:08:56,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:08:56,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:08:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:56,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:56,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:08:56,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:08:56,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:08:56,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:08:56,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:08:56,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:08:56,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:08:56,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:08:56,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:08:56,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:08:56,189 INFO L134 CoverageAnalysis]: Checked inductivity of 850 backedges. 383 proven. 0 refuted. 0 times theorem prover too weak. 467 trivial. 0 not checked. [2020-10-14 10:08:56,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [492807117] [2020-10-14 10:08:56,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:08:56,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 10:08:56,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027089291] [2020-10-14 10:08:56,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 10:08:56,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:08:56,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 10:08:56,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:56,191 INFO L87 Difference]: Start difference. First operand 1702 states and 2494 transitions. Second operand 3 states. [2020-10-14 10:08:56,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:08:56,413 INFO L93 Difference]: Finished difference Result 3661 states and 5433 transitions. [2020-10-14 10:08:56,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 10:08:56,414 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 309 [2020-10-14 10:08:56,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:08:56,430 INFO L225 Difference]: With dead ends: 3661 [2020-10-14 10:08:56,430 INFO L226 Difference]: Without dead ends: 1918 [2020-10-14 10:08:56,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:08:56,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1918 states. [2020-10-14 10:08:56,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1918 to 1840. [2020-10-14 10:08:56,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1840 states. [2020-10-14 10:08:56,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1840 states to 1840 states and 2722 transitions. [2020-10-14 10:08:56,486 INFO L78 Accepts]: Start accepts. Automaton has 1840 states and 2722 transitions. Word has length 309 [2020-10-14 10:08:56,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:08:56,486 INFO L479 AbstractCegarLoop]: Abstraction has 1840 states and 2722 transitions. [2020-10-14 10:08:56,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 10:08:56,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1840 states and 2722 transitions. [2020-10-14 10:08:56,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-10-14 10:08:56,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:08:56,499 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:08:56,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 10:08:56,499 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:08:56,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:08:56,500 INFO L82 PathProgramCache]: Analyzing trace with hash -916389971, now seen corresponding path program 1 times [2020-10-14 10:08:56,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:08:56,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [938302369] [2020-10-14 10:08:56,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:08:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:08:56,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:56,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:56,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:56,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:56,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:56,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:57,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:57,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:57,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:08:59,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:01,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:09:01,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 340 [2020-10-14 10:09:01,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 10:09:01,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 10:09:01,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:09:01,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:09:01,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:09:01,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-14 10:09:01,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 10:09:01,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:09:01,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:09:01,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:09:01,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:01,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:09:01,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:09:01,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:09:01,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:09:01,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:09:01,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:09:01,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:09:01,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:09:01,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:09:01,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:09:01,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1008 backedges. 514 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2020-10-14 10:09:01,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [938302369] [2020-10-14 10:09:01,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:09:01,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 10:09:01,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356539188] [2020-10-14 10:09:01,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 10:09:01,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:09:01,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 10:09:01,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:09:01,679 INFO L87 Difference]: Start difference. First operand 1840 states and 2722 transitions. Second operand 3 states. [2020-10-14 10:09:01,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:09:01,891 INFO L93 Difference]: Finished difference Result 3991 states and 5985 transitions. [2020-10-14 10:09:01,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 10:09:01,891 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 330 [2020-10-14 10:09:01,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:09:01,900 INFO L225 Difference]: With dead ends: 3991 [2020-10-14 10:09:01,900 INFO L226 Difference]: Without dead ends: 2110 [2020-10-14 10:09:01,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:09:01,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2110 states. [2020-10-14 10:09:01,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2110 to 1990. [2020-10-14 10:09:01,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1990 states. [2020-10-14 10:09:01,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 2974 transitions. [2020-10-14 10:09:01,961 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 2974 transitions. Word has length 330 [2020-10-14 10:09:01,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:09:01,962 INFO L479 AbstractCegarLoop]: Abstraction has 1990 states and 2974 transitions. [2020-10-14 10:09:01,962 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 10:09:01,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 2974 transitions. [2020-10-14 10:09:01,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-10-14 10:09:01,976 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:09:01,977 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:09:01,977 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 10:09:01,977 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:09:01,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:09:01,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1634879957, now seen corresponding path program 2 times [2020-10-14 10:09:01,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:09:01,979 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [768314546] [2020-10-14 10:09:01,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:09:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:09:02,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:02,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:02,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:02,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:02,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:02,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:02,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:02,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:02,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:04,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:04,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:05,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:05,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:07,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:09:07,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 348 [2020-10-14 10:09:07,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-14 10:09:07,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 10:09:07,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:09:07,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:09:07,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:09:07,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 202 [2020-10-14 10:09:07,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 10:09:07,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:09:07,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:09:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:09:07,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:07,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:09:07,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:09:07,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:09:07,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:09:07,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:09:07,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:09:07,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:09:07,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:09:07,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:09:07,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:09:07,115 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 666 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2020-10-14 10:09:07,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [768314546] [2020-10-14 10:09:07,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:09:07,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 10:09:07,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052253777] [2020-10-14 10:09:07,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 10:09:07,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:09:07,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 10:09:07,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:09:07,117 INFO L87 Difference]: Start difference. First operand 1990 states and 2974 transitions. Second operand 3 states. [2020-10-14 10:09:07,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:09:07,324 INFO L93 Difference]: Finished difference Result 4225 states and 6381 transitions. [2020-10-14 10:09:07,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 10:09:07,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 338 [2020-10-14 10:09:07,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:09:07,330 INFO L225 Difference]: With dead ends: 4225 [2020-10-14 10:09:07,330 INFO L226 Difference]: Without dead ends: 2248 [2020-10-14 10:09:07,334 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:09:07,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2248 states. [2020-10-14 10:09:07,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2248 to 2224. [2020-10-14 10:09:07,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2224 states. [2020-10-14 10:09:07,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2224 states to 2224 states and 3238 transitions. [2020-10-14 10:09:07,384 INFO L78 Accepts]: Start accepts. Automaton has 2224 states and 3238 transitions. Word has length 338 [2020-10-14 10:09:07,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:09:07,385 INFO L479 AbstractCegarLoop]: Abstraction has 2224 states and 3238 transitions. [2020-10-14 10:09:07,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 10:09:07,385 INFO L276 IsEmpty]: Start isEmpty. Operand 2224 states and 3238 transitions. [2020-10-14 10:09:07,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2020-10-14 10:09:07,394 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:09:07,395 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:09:07,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 10:09:07,395 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:09:07,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:09:07,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1212392292, now seen corresponding path program 1 times [2020-10-14 10:09:07,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:09:07,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [475313231] [2020-10-14 10:09:07,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:09:07,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:09:07,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:07,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:07,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:07,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:07,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:07,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:07,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:07,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:08,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:09,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:12,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:09:12,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 359 [2020-10-14 10:09:12,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 10:09:12,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4847 [2020-10-14 10:09:12,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:09:12,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:09:12,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:09:12,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-14 10:09:12,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 10:09:12,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:09:12,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:09:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:09:12,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:12,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:09:12,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:09:12,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:09:12,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:09:12,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:09:12,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:09:12,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:09:12,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:09:12,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:09:12,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:09:12,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1103 backedges. 411 proven. 0 refuted. 0 times theorem prover too weak. 692 trivial. 0 not checked. [2020-10-14 10:09:12,366 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [475313231] [2020-10-14 10:09:12,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:09:12,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 10:09:12,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874349600] [2020-10-14 10:09:12,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 10:09:12,368 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:09:12,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 10:09:12,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:09:12,368 INFO L87 Difference]: Start difference. First operand 2224 states and 3238 transitions. Second operand 3 states. [2020-10-14 10:09:12,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:09:12,584 INFO L93 Difference]: Finished difference Result 4501 states and 6531 transitions. [2020-10-14 10:09:12,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 10:09:12,584 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 349 [2020-10-14 10:09:12,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:09:12,590 INFO L225 Difference]: With dead ends: 4501 [2020-10-14 10:09:12,590 INFO L226 Difference]: Without dead ends: 2242 [2020-10-14 10:09:12,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:09:12,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2242 states. [2020-10-14 10:09:12,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2242 to 2224. [2020-10-14 10:09:12,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2224 states. [2020-10-14 10:09:12,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2224 states to 2224 states and 3058 transitions. [2020-10-14 10:09:12,643 INFO L78 Accepts]: Start accepts. Automaton has 2224 states and 3058 transitions. Word has length 349 [2020-10-14 10:09:12,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:09:12,643 INFO L479 AbstractCegarLoop]: Abstraction has 2224 states and 3058 transitions. [2020-10-14 10:09:12,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 10:09:12,643 INFO L276 IsEmpty]: Start isEmpty. Operand 2224 states and 3058 transitions. [2020-10-14 10:09:12,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2020-10-14 10:09:12,650 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:09:12,651 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:09:12,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 10:09:12,651 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:09:12,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:09:12,651 INFO L82 PathProgramCache]: Analyzing trace with hash -868627143, now seen corresponding path program 1 times [2020-10-14 10:09:12,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:09:12,652 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833453134] [2020-10-14 10:09:12,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:09:12,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:09:12,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:12,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:12,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:12,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:12,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:12,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:13,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:13,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:14,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:09:14,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 377 [2020-10-14 10:09:14,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 10:09:14,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2215 [2020-10-14 10:09:14,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:09:14,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:09:14,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:09:14,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-14 10:09:14,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 10:09:14,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:09:14,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:09:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:09:14,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:14,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:09:14,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:09:14,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:09:14,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 10:09:14,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:09:14,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:09:14,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:09:14,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:09:14,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:09:14,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:09:15,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1231 backedges. 668 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2020-10-14 10:09:15,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [833453134] [2020-10-14 10:09:15,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:09:15,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 10:09:15,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583017299] [2020-10-14 10:09:15,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 10:09:15,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:09:15,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 10:09:15,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:09:15,164 INFO L87 Difference]: Start difference. First operand 2224 states and 3058 transitions. Second operand 3 states. [2020-10-14 10:09:15,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:09:15,364 INFO L93 Difference]: Finished difference Result 4729 states and 6549 transitions. [2020-10-14 10:09:15,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 10:09:15,365 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 367 [2020-10-14 10:09:15,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:09:15,370 INFO L225 Difference]: With dead ends: 4729 [2020-10-14 10:09:15,371 INFO L226 Difference]: Without dead ends: 2440 [2020-10-14 10:09:15,376 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:09:15,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2440 states. [2020-10-14 10:09:15,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2440 to 2386. [2020-10-14 10:09:15,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2386 states. [2020-10-14 10:09:15,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2386 states to 2386 states and 3274 transitions. [2020-10-14 10:09:15,423 INFO L78 Accepts]: Start accepts. Automaton has 2386 states and 3274 transitions. Word has length 367 [2020-10-14 10:09:15,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:09:15,424 INFO L479 AbstractCegarLoop]: Abstraction has 2386 states and 3274 transitions. [2020-10-14 10:09:15,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 10:09:15,424 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states and 3274 transitions. [2020-10-14 10:09:15,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2020-10-14 10:09:15,431 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:09:15,431 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:09:15,432 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 10:09:15,432 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:09:15,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:09:15,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1137075616, now seen corresponding path program 1 times [2020-10-14 10:09:15,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:09:15,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [688132783] [2020-10-14 10:09:15,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:09:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:09:15,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:15,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:15,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:15,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:15,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:15,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:15,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:16,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:16,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:09:16,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 400 [2020-10-14 10:09:16,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 10:09:16,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1461 [2020-10-14 10:09:16,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:09:16,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:09:16,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:09:16,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 123 [2020-10-14 10:09:16,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 10:09:16,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:09:16,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:09:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:09:16,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:16,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:09:16,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:09:16,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:09:16,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:09:16,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:09:16,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:09:16,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:09:16,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:09:16,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:09:16,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:09:17,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1455 backedges. 827 proven. 0 refuted. 0 times theorem prover too weak. 628 trivial. 0 not checked. [2020-10-14 10:09:17,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [688132783] [2020-10-14 10:09:17,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:09:17,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 10:09:17,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668282884] [2020-10-14 10:09:17,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 10:09:17,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:09:17,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 10:09:17,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:09:17,045 INFO L87 Difference]: Start difference. First operand 2386 states and 3274 transitions. Second operand 3 states. [2020-10-14 10:09:17,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:09:17,277 INFO L93 Difference]: Finished difference Result 5017 states and 6915 transitions. [2020-10-14 10:09:17,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 10:09:17,277 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 390 [2020-10-14 10:09:17,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:09:17,283 INFO L225 Difference]: With dead ends: 5017 [2020-10-14 10:09:17,283 INFO L226 Difference]: Without dead ends: 2578 [2020-10-14 10:09:17,288 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:09:17,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2578 states. [2020-10-14 10:09:17,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2578 to 2560. [2020-10-14 10:09:17,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2560 states. [2020-10-14 10:09:17,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2560 states to 2560 states and 3514 transitions. [2020-10-14 10:09:17,343 INFO L78 Accepts]: Start accepts. Automaton has 2560 states and 3514 transitions. Word has length 390 [2020-10-14 10:09:17,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:09:17,344 INFO L479 AbstractCegarLoop]: Abstraction has 2560 states and 3514 transitions. [2020-10-14 10:09:17,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 10:09:17,344 INFO L276 IsEmpty]: Start isEmpty. Operand 2560 states and 3514 transitions. [2020-10-14 10:09:17,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2020-10-14 10:09:17,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:09:17,352 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 11, 11, 10, 10, 9, 9, 8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:09:17,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 10:09:17,353 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:09:17,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:09:17,353 INFO L82 PathProgramCache]: Analyzing trace with hash -180871143, now seen corresponding path program 1 times [2020-10-14 10:09:17,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:09:17,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1553310071] [2020-10-14 10:09:17,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:09:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:09:17,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:17,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:17,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:17,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:17,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:17,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:18,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:19,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:19,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:22,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:09:22,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 434 [2020-10-14 10:09:22,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 10:09:22,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-14 10:09:22,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:09:22,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:09:22,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:09:22,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 211 [2020-10-14 10:09:22,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 10:09:22,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:09:22,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:09:22,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:09:22,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:22,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:09:22,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:09:22,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:09:22,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:09:22,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:09:22,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:09:22,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:09:22,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:09:22,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:09:22,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:09:22,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1735 backedges. 1039 proven. 0 refuted. 0 times theorem prover too weak. 696 trivial. 0 not checked. [2020-10-14 10:09:22,574 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1553310071] [2020-10-14 10:09:22,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:09:22,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 10:09:22,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535668795] [2020-10-14 10:09:22,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 10:09:22,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:09:22,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 10:09:22,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:09:22,578 INFO L87 Difference]: Start difference. First operand 2560 states and 3514 transitions. Second operand 3 states. [2020-10-14 10:09:22,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:09:22,793 INFO L93 Difference]: Finished difference Result 5311 states and 7287 transitions. [2020-10-14 10:09:22,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 10:09:22,793 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 424 [2020-10-14 10:09:22,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:09:22,800 INFO L225 Difference]: With dead ends: 5311 [2020-10-14 10:09:22,800 INFO L226 Difference]: Without dead ends: 2668 [2020-10-14 10:09:22,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:09:22,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2668 states. [2020-10-14 10:09:22,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2668 to 2650. [2020-10-14 10:09:22,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2650 states. [2020-10-14 10:09:22,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2650 states to 2650 states and 3598 transitions. [2020-10-14 10:09:22,861 INFO L78 Accepts]: Start accepts. Automaton has 2650 states and 3598 transitions. Word has length 424 [2020-10-14 10:09:22,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:09:22,862 INFO L479 AbstractCegarLoop]: Abstraction has 2650 states and 3598 transitions. [2020-10-14 10:09:22,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 10:09:22,862 INFO L276 IsEmpty]: Start isEmpty. Operand 2650 states and 3598 transitions. [2020-10-14 10:09:22,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2020-10-14 10:09:22,871 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:09:22,871 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 11, 11, 10, 10, 9, 9, 8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:09:22,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 10:09:22,871 INFO L427 AbstractCegarLoop]: === Iteration 21 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:09:22,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:09:22,872 INFO L82 PathProgramCache]: Analyzing trace with hash 2102619678, now seen corresponding path program 1 times [2020-10-14 10:09:22,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:09:22,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1628301873] [2020-10-14 10:09:22,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:09:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:09:22,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:22,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:23,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:23,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:23,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:23,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:23,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:24,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:24,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:26,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:27,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:09:27,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 435 [2020-10-14 10:09:27,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 10:09:27,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 10:09:27,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:09:27,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:09:27,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:09:27,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-14 10:09:27,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 10:09:27,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:09:27,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:09:27,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:09:27,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:27,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:09:27,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:09:27,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:09:27,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:09:27,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:09:27,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:09:27,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:09:27,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:09:27,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:09:27,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:09:28,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1735 backedges. 1039 proven. 0 refuted. 0 times theorem prover too weak. 696 trivial. 0 not checked. [2020-10-14 10:09:28,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1628301873] [2020-10-14 10:09:28,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:09:28,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 10:09:28,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265545329] [2020-10-14 10:09:28,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 10:09:28,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:09:28,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 10:09:28,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:09:28,092 INFO L87 Difference]: Start difference. First operand 2650 states and 3598 transitions. Second operand 3 states. [2020-10-14 10:09:28,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:09:28,303 INFO L93 Difference]: Finished difference Result 5371 states and 7269 transitions. [2020-10-14 10:09:28,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 10:09:28,303 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 425 [2020-10-14 10:09:28,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:09:28,310 INFO L225 Difference]: With dead ends: 5371 [2020-10-14 10:09:28,310 INFO L226 Difference]: Without dead ends: 2668 [2020-10-14 10:09:28,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:09:28,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2668 states. [2020-10-14 10:09:28,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2668 to 2650. [2020-10-14 10:09:28,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2650 states. [2020-10-14 10:09:28,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2650 states to 2650 states and 3580 transitions. [2020-10-14 10:09:28,368 INFO L78 Accepts]: Start accepts. Automaton has 2650 states and 3580 transitions. Word has length 425 [2020-10-14 10:09:28,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:09:28,368 INFO L479 AbstractCegarLoop]: Abstraction has 2650 states and 3580 transitions. [2020-10-14 10:09:28,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 10:09:28,369 INFO L276 IsEmpty]: Start isEmpty. Operand 2650 states and 3580 transitions. [2020-10-14 10:09:28,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2020-10-14 10:09:28,377 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:09:28,377 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 12, 12, 12, 11, 11, 10, 10, 9, 9, 8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:09:28,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 10:09:28,378 INFO L427 AbstractCegarLoop]: === Iteration 22 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:09:28,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:09:28,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1125134001, now seen corresponding path program 1 times [2020-10-14 10:09:28,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:09:28,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [244812983] [2020-10-14 10:09:28,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:09:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:09:28,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:28,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:28,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:28,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:28,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:28,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:29,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:31,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:33,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:09:33,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 446 [2020-10-14 10:09:33,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 10:09:33,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 10:09:33,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:09:33,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:09:33,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:09:33,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 10:09:33,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 10:09:33,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:09:33,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:09:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:09:33,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:33,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:09:33,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:09:33,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:09:33,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:09:33,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:09:33,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:09:33,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:09:33,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:09:33,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:09:33,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:09:33,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1868 backedges. 1015 proven. 0 refuted. 0 times theorem prover too weak. 853 trivial. 0 not checked. [2020-10-14 10:09:33,537 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [244812983] [2020-10-14 10:09:33,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:09:33,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 10:09:33,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194515001] [2020-10-14 10:09:33,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 10:09:33,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:09:33,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 10:09:33,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:09:33,538 INFO L87 Difference]: Start difference. First operand 2650 states and 3580 transitions. Second operand 3 states. [2020-10-14 10:09:33,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:09:33,773 INFO L93 Difference]: Finished difference Result 5330 states and 7195 transitions. [2020-10-14 10:09:33,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 10:09:33,774 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 436 [2020-10-14 10:09:33,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:09:33,780 INFO L225 Difference]: With dead ends: 5330 [2020-10-14 10:09:33,781 INFO L226 Difference]: Without dead ends: 2687 [2020-10-14 10:09:33,787 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:09:33,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2020-10-14 10:09:33,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 2656. [2020-10-14 10:09:33,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2656 states. [2020-10-14 10:09:33,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2656 states to 2656 states and 3568 transitions. [2020-10-14 10:09:33,843 INFO L78 Accepts]: Start accepts. Automaton has 2656 states and 3568 transitions. Word has length 436 [2020-10-14 10:09:33,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:09:33,844 INFO L479 AbstractCegarLoop]: Abstraction has 2656 states and 3568 transitions. [2020-10-14 10:09:33,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 10:09:33,844 INFO L276 IsEmpty]: Start isEmpty. Operand 2656 states and 3568 transitions. [2020-10-14 10:09:33,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2020-10-14 10:09:33,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:09:33,852 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:09:33,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 10:09:33,853 INFO L427 AbstractCegarLoop]: === Iteration 23 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:09:33,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:09:33,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1776341599, now seen corresponding path program 1 times [2020-10-14 10:09:33,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:09:33,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1707843682] [2020-10-14 10:09:33,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:09:33,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:09:33,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:33,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:34,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:34,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:35,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:37,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:09:37,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 463 [2020-10-14 10:09:37,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 10:09:37,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3609 [2020-10-14 10:09:37,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:09:37,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:09:37,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 10:09:37,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 388 [2020-10-14 10:09:37,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 10:09:37,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:09:37,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:09:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:09:37,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:37,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:09:37,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:09:37,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:09:37,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:09:37,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:09:37,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:09:37,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:09:37,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:09:37,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:09:37,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:09:37,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 597 proven. 26 refuted. 0 times theorem prover too weak. 1399 trivial. 0 not checked. [2020-10-14 10:09:37,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1707843682] [2020-10-14 10:09:37,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 10:09:37,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-10-14 10:09:37,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745530059] [2020-10-14 10:09:37,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 10:09:37,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:09:37,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 10:09:37,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 10:09:37,691 INFO L87 Difference]: Start difference. First operand 2656 states and 3568 transitions. Second operand 4 states. [2020-10-14 10:09:38,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:09:38,018 INFO L93 Difference]: Finished difference Result 6919 states and 9398 transitions. [2020-10-14 10:09:38,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 10:09:38,019 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 453 [2020-10-14 10:09:38,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:09:38,028 INFO L225 Difference]: With dead ends: 6919 [2020-10-14 10:09:38,028 INFO L226 Difference]: Without dead ends: 3892 [2020-10-14 10:09:38,034 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 10:09:38,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3892 states. [2020-10-14 10:09:38,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3892 to 2740. [2020-10-14 10:09:38,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2740 states. [2020-10-14 10:09:38,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2740 states to 2740 states and 3688 transitions. [2020-10-14 10:09:38,096 INFO L78 Accepts]: Start accepts. Automaton has 2740 states and 3688 transitions. Word has length 453 [2020-10-14 10:09:38,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:09:38,096 INFO L479 AbstractCegarLoop]: Abstraction has 2740 states and 3688 transitions. [2020-10-14 10:09:38,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 10:09:38,097 INFO L276 IsEmpty]: Start isEmpty. Operand 2740 states and 3688 transitions. [2020-10-14 10:09:38,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2020-10-14 10:09:38,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:09:38,104 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 17, 17, 16, 16, 16, 14, 14, 14, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:09:38,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 10:09:38,104 INFO L427 AbstractCegarLoop]: === Iteration 24 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:09:38,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:09:38,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1903277343, now seen corresponding path program 1 times [2020-10-14 10:09:38,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:09:38,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [266645671] [2020-10-14 10:09:38,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:09:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:09:38,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:38,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:38,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:38,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:38,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:38,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:38,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:42,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:42,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:42,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:42,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:43,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:09:43,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 519 [2020-10-14 10:09:43,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 10:09:43,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 10:09:43,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:09:43,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:09:43,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:09:43,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-10-14 10:09:43,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 10:09:43,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:09:43,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:09:43,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:09:43,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:43,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:09:43,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:09:43,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:09:43,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:09:43,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:09:43,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:09:43,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:09:43,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:09:43,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:09:43,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:09:43,273 INFO L134 CoverageAnalysis]: Checked inductivity of 2546 backedges. 1440 proven. 0 refuted. 0 times theorem prover too weak. 1106 trivial. 0 not checked. [2020-10-14 10:09:43,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [266645671] [2020-10-14 10:09:43,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:09:43,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 10:09:43,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443695292] [2020-10-14 10:09:43,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 10:09:43,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:09:43,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 10:09:43,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:09:43,276 INFO L87 Difference]: Start difference. First operand 2740 states and 3688 transitions. Second operand 3 states. [2020-10-14 10:09:43,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:09:43,458 INFO L93 Difference]: Finished difference Result 5611 states and 7557 transitions. [2020-10-14 10:09:43,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 10:09:43,459 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 509 [2020-10-14 10:09:43,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:09:43,466 INFO L225 Difference]: With dead ends: 5611 [2020-10-14 10:09:43,466 INFO L226 Difference]: Without dead ends: 2872 [2020-10-14 10:09:43,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:09:43,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2872 states. [2020-10-14 10:09:43,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2872 to 2848. [2020-10-14 10:09:43,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2848 states. [2020-10-14 10:09:43,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 3826 transitions. [2020-10-14 10:09:43,527 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 3826 transitions. Word has length 509 [2020-10-14 10:09:43,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:09:43,528 INFO L479 AbstractCegarLoop]: Abstraction has 2848 states and 3826 transitions. [2020-10-14 10:09:43,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 10:09:43,528 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 3826 transitions. [2020-10-14 10:09:43,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2020-10-14 10:09:43,535 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:09:43,536 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 19, 19, 18, 18, 18, 16, 16, 16, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:09:43,536 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 10:09:43,537 INFO L427 AbstractCegarLoop]: === Iteration 25 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:09:43,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:09:43,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1192802241, now seen corresponding path program 1 times [2020-10-14 10:09:43,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:09:43,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [736440685] [2020-10-14 10:09:43,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:09:43,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:09:43,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:43,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:43,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:43,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:43,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:43,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:43,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:44,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:48,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:09:48,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 551 [2020-10-14 10:09:48,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 10:09:48,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 10:09:48,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:09:48,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:09:48,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:09:48,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 272 [2020-10-14 10:09:48,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 10:09:48,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:09:48,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:09:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:09:48,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:48,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:09:48,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:09:48,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:09:48,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:09:48,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:09:48,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:09:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:09:48,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:09:48,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:09:48,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:09:48,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2996 backedges. 1683 proven. 0 refuted. 0 times theorem prover too weak. 1313 trivial. 0 not checked. [2020-10-14 10:09:48,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [736440685] [2020-10-14 10:09:48,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:09:48,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 10:09:48,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945759787] [2020-10-14 10:09:48,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 10:09:48,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:09:48,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 10:09:48,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:09:48,906 INFO L87 Difference]: Start difference. First operand 2848 states and 3826 transitions. Second operand 3 states. [2020-10-14 10:09:49,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:09:49,175 INFO L93 Difference]: Finished difference Result 5689 states and 7641 transitions. [2020-10-14 10:09:49,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 10:09:49,176 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 541 [2020-10-14 10:09:49,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:09:49,185 INFO L225 Difference]: With dead ends: 5689 [2020-10-14 10:09:49,185 INFO L226 Difference]: Without dead ends: 2854 [2020-10-14 10:09:49,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:09:49,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2854 states. [2020-10-14 10:09:49,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2854 to 2848. [2020-10-14 10:09:49,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2848 states. [2020-10-14 10:09:49,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 3814 transitions. [2020-10-14 10:09:49,253 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 3814 transitions. Word has length 541 [2020-10-14 10:09:49,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:09:49,254 INFO L479 AbstractCegarLoop]: Abstraction has 2848 states and 3814 transitions. [2020-10-14 10:09:49,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 10:09:49,254 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 3814 transitions. [2020-10-14 10:09:49,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2020-10-14 10:09:49,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:09:49,264 INFO L422 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 25, 25, 24, 24, 24, 24, 24, 24, 21, 21, 21, 18, 18, 15, 15, 12, 12, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:09:49,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 10:09:49,265 INFO L427 AbstractCegarLoop]: === Iteration 26 === [ERRErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:09:49,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:09:49,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1183436223, now seen corresponding path program 1 times [2020-10-14 10:09:49,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:09:49,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2078366137] [2020-10-14 10:09:49,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:09:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:09:49,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:49,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:49,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:49,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:49,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:49,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:49,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:49,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:49,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:53,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:54,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:09:54,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 719 [2020-10-14 10:09:54,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 10:09:54,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 10:09:54,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:09:54,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:09:54,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:09:54,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 515 [2020-10-14 10:09:54,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 10:09:54,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 10:09:54,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:09:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:09:54,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:09:54,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:09:54,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 10:09:54,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:09:54,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 10:09:54,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:09:54,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:09:54,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:09:54,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:09:54,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:09:54,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:09:54,536 INFO L134 CoverageAnalysis]: Checked inductivity of 5536 backedges. 2468 proven. 0 refuted. 0 times theorem prover too weak. 3068 trivial. 0 not checked. [2020-10-14 10:09:54,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2078366137] [2020-10-14 10:09:54,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:09:54,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 10:09:54,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707860836] [2020-10-14 10:09:54,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 10:09:54,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:09:54,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 10:09:54,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:09:54,538 INFO L87 Difference]: Start difference. First operand 2848 states and 3814 transitions. Second operand 3 states. [2020-10-14 10:09:54,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:09:54,745 INFO L93 Difference]: Finished difference Result 4331 states and 5785 transitions. [2020-10-14 10:09:54,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 10:09:54,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 709 [2020-10-14 10:09:54,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:09:54,747 INFO L225 Difference]: With dead ends: 4331 [2020-10-14 10:09:54,747 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 10:09:54,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 10:09:54,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 10:09:54,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 10:09:54,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 10:09:54,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 10:09:54,757 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 709 [2020-10-14 10:09:54,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:09:54,758 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 10:09:54,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 10:09:54,758 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 10:09:54,758 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 10:09:54,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 10:09:54,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 10:09:55,308 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 75 [2020-10-14 10:09:55,643 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 75 [2020-10-14 10:09:56,422 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 27 [2020-10-14 10:09:57,039 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 27 [2020-10-14 10:09:57,078 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-10-14 10:09:57,078 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 10:09:57,079 INFO L268 CegarLoopResult]: For program point ERRErr0ASSERT_VIOLATIONERROR_FUNCTION(line 618) no Hoare annotation was computed. [2020-10-14 10:09:57,079 INFO L268 CegarLoopResult]: For program point ERREXIT(lines 617 620) no Hoare annotation was computed. [2020-10-14 10:09:57,079 INFO L271 CegarLoopResult]: At program point ERRENTRY(lines 617 620) the Hoare annotation is: true [2020-10-14 10:09:57,079 INFO L268 CegarLoopResult]: For program point ERRFINAL(lines 617 620) no Hoare annotation was computed. [2020-10-14 10:09:57,079 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 10:09:57,079 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-14 10:09:57,079 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 10:09:57,080 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 10:09:57,080 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 621 632) the Hoare annotation is: true [2020-10-14 10:09:57,080 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 621 632) no Hoare annotation was computed. [2020-10-14 10:09:57,080 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 621 632) no Hoare annotation was computed. [2020-10-14 10:09:57,080 INFO L271 CegarLoopResult]: At program point L628(line 628) the Hoare annotation is: true [2020-10-14 10:09:57,081 INFO L268 CegarLoopResult]: For program point L628-1(line 628) no Hoare annotation was computed. [2020-10-14 10:09:57,081 INFO L268 CegarLoopResult]: For program point L465(lines 465 467) no Hoare annotation was computed. [2020-10-14 10:09:57,081 INFO L268 CegarLoopResult]: For program point L234(lines 234 237) no Hoare annotation was computed. [2020-10-14 10:09:57,081 INFO L264 CegarLoopResult]: At program point L201(lines 197 551) the Hoare annotation is: (and (<= ssl3_accept_~blastFlag~0 3) (<= 8672 ssl3_accept_~s__state~0)) [2020-10-14 10:09:57,082 INFO L264 CegarLoopResult]: At program point L102(lines 101 583) the Hoare annotation is: (let ((.cse0 (<= 8672 ssl3_accept_~s__state~0))) (or (and (<= ssl3_accept_~blastFlag~0 2) .cse0) (and (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3) .cse0))) [2020-10-14 10:09:57,082 INFO L268 CegarLoopResult]: For program point L301(lines 301 308) no Hoare annotation was computed. [2020-10-14 10:09:57,082 INFO L268 CegarLoopResult]: For program point L301-2(lines 301 308) no Hoare annotation was computed. [2020-10-14 10:09:57,082 INFO L268 CegarLoopResult]: For program point L203(lines 203 549) no Hoare annotation was computed. [2020-10-14 10:09:57,082 INFO L268 CegarLoopResult]: For program point L170(lines 170 560) no Hoare annotation was computed. [2020-10-14 10:09:57,082 INFO L268 CegarLoopResult]: For program point L137(lines 137 571) no Hoare annotation was computed. [2020-10-14 10:09:57,082 INFO L268 CegarLoopResult]: For program point L104(lines 104 582) no Hoare annotation was computed. [2020-10-14 10:09:57,082 INFO L268 CegarLoopResult]: For program point L534(lines 534 540) no Hoare annotation was computed. [2020-10-14 10:09:57,083 INFO L268 CegarLoopResult]: For program point L534-1(lines 534 540) no Hoare annotation was computed. [2020-10-14 10:09:57,083 INFO L268 CegarLoopResult]: For program point L336(lines 336 360) no Hoare annotation was computed. [2020-10-14 10:09:57,083 INFO L271 CegarLoopResult]: At program point L204(lines 203 549) the Hoare annotation is: true [2020-10-14 10:09:57,083 INFO L264 CegarLoopResult]: At program point L171(lines 167 561) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~s__state~0 8656))) (or (and .cse0 (<= 8512 ssl3_accept_~s__state~0) (<= ssl3_accept_~blastFlag~0 2)) (and .cse0 (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)))) [2020-10-14 10:09:57,083 INFO L264 CegarLoopResult]: At program point L138(lines 134 572) the Hoare annotation is: (or (and (<= ssl3_accept_~s__state~0 8656) (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and (<= ssl3_accept_~s__state~0 8512) (<= ssl3_accept_~blastFlag~0 2) (<= 8496 ssl3_accept_~s__state~0))) [2020-10-14 10:09:57,083 INFO L268 CegarLoopResult]: For program point L271(lines 271 273) no Hoare annotation was computed. [2020-10-14 10:09:57,084 INFO L268 CegarLoopResult]: For program point L271-2(lines 207 546) no Hoare annotation was computed. [2020-10-14 10:09:57,084 INFO L268 CegarLoopResult]: For program point L305(lines 305 307) no Hoare annotation was computed. [2020-10-14 10:09:57,084 INFO L268 CegarLoopResult]: For program point L239(lines 239 250) no Hoare annotation was computed. [2020-10-14 10:09:57,084 INFO L271 CegarLoopResult]: At program point L206(lines 205 549) the Hoare annotation is: true [2020-10-14 10:09:57,084 INFO L268 CegarLoopResult]: For program point L173(lines 173 559) no Hoare annotation was computed. [2020-10-14 10:09:57,084 INFO L268 CegarLoopResult]: For program point L140(lines 140 570) no Hoare annotation was computed. [2020-10-14 10:09:57,084 INFO L268 CegarLoopResult]: For program point L107(lines 107 581) no Hoare annotation was computed. [2020-10-14 10:09:57,084 INFO L271 CegarLoopResult]: At program point L603(lines 97 604) the Hoare annotation is: true [2020-10-14 10:09:57,084 INFO L268 CegarLoopResult]: For program point L537(lines 537 539) no Hoare annotation was computed. [2020-10-14 10:09:57,085 INFO L268 CegarLoopResult]: For program point L505(lines 505 508) no Hoare annotation was computed. [2020-10-14 10:09:57,085 INFO L268 CegarLoopResult]: For program point L439(lines 439 441) no Hoare annotation was computed. [2020-10-14 10:09:57,085 INFO L268 CegarLoopResult]: For program point L340(lines 340 344) no Hoare annotation was computed. [2020-10-14 10:09:57,085 INFO L268 CegarLoopResult]: For program point L340-2(lines 340 344) no Hoare annotation was computed. [2020-10-14 10:09:57,085 INFO L268 CegarLoopResult]: For program point L241(lines 241 244) no Hoare annotation was computed. [2020-10-14 10:09:57,085 INFO L271 CegarLoopResult]: At program point ssl3_acceptENTRY(lines 11 615) the Hoare annotation is: true [2020-10-14 10:09:57,085 INFO L268 CegarLoopResult]: For program point L374(lines 374 406) no Hoare annotation was computed. [2020-10-14 10:09:57,085 INFO L268 CegarLoopResult]: For program point L176(lines 176 558) no Hoare annotation was computed. [2020-10-14 10:09:57,086 INFO L268 CegarLoopResult]: For program point L143(lines 143 569) no Hoare annotation was computed. [2020-10-14 10:09:57,086 INFO L268 CegarLoopResult]: For program point L110(lines 110 580) no Hoare annotation was computed. [2020-10-14 10:09:57,086 INFO L268 CegarLoopResult]: For program point L474(lines 474 476) no Hoare annotation was computed. [2020-10-14 10:09:57,086 INFO L268 CegarLoopResult]: For program point L474-2(lines 207 546) no Hoare annotation was computed. [2020-10-14 10:09:57,086 INFO L268 CegarLoopResult]: For program point L375(lines 375 381) no Hoare annotation was computed. [2020-10-14 10:09:57,086 INFO L264 CegarLoopResult]: At program point L210(lines 104 582) the Hoare annotation is: (let ((.cse1 (<= ssl3_accept_~s__state~0 8448)) (.cse0 (<= ssl3_accept_~blastFlag~0 2)) (.cse2 (not (= ssl3_accept_~s__hit~0 0))) (.cse3 (<= ssl3_accept_~blastFlag~0 3)) (.cse4 (<= 8672 ssl3_accept_~s__state~0))) (or (and .cse0 .cse1) (and .cse2 .cse1 .cse3) (and .cse0 .cse4) (and .cse2 .cse3 .cse4))) [2020-10-14 10:09:57,086 INFO L264 CegarLoopResult]: At program point L177(lines 173 559) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~s__state~0 8656))) (or (and .cse0 (<= 8512 ssl3_accept_~s__state~0) (<= ssl3_accept_~blastFlag~0 2)) (and .cse0 (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)))) [2020-10-14 10:09:57,087 INFO L264 CegarLoopResult]: At program point L144(lines 140 570) the Hoare annotation is: (or (and (<= 8512 ssl3_accept_~s__state~0) (<= ssl3_accept_~s__state~0 8528) (<= ssl3_accept_~blastFlag~0 2)) (and (<= ssl3_accept_~s__state~0 8656) (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3))) [2020-10-14 10:09:57,087 INFO L268 CegarLoopResult]: For program point L442(lines 442 451) no Hoare annotation was computed. [2020-10-14 10:09:57,087 INFO L268 CegarLoopResult]: For program point L608(lines 608 610) no Hoare annotation was computed. [2020-10-14 10:09:57,087 INFO L268 CegarLoopResult]: For program point L608-2(lines 608 610) no Hoare annotation was computed. [2020-10-14 10:09:57,087 INFO L268 CegarLoopResult]: For program point L179(lines 179 557) no Hoare annotation was computed. [2020-10-14 10:09:57,087 INFO L268 CegarLoopResult]: For program point L146(lines 146 568) no Hoare annotation was computed. [2020-10-14 10:09:57,087 INFO L268 CegarLoopResult]: For program point L113(lines 113 579) no Hoare annotation was computed. [2020-10-14 10:09:57,087 INFO L268 CegarLoopResult]: For program point L81(lines 81 87) no Hoare annotation was computed. [2020-10-14 10:09:57,088 INFO L268 CegarLoopResult]: For program point L446(lines 446 448) no Hoare annotation was computed. [2020-10-14 10:09:57,088 INFO L268 CegarLoopResult]: For program point L215(lines 215 217) no Hoare annotation was computed. [2020-10-14 10:09:57,088 INFO L268 CegarLoopResult]: For program point L182(lines 182 556) no Hoare annotation was computed. [2020-10-14 10:09:57,088 INFO L268 CegarLoopResult]: For program point L149(lines 149 567) no Hoare annotation was computed. [2020-10-14 10:09:57,088 INFO L268 CegarLoopResult]: For program point L215-2(lines 215 217) no Hoare annotation was computed. [2020-10-14 10:09:57,088 INFO L268 CegarLoopResult]: For program point L116(lines 116 578) no Hoare annotation was computed. [2020-10-14 10:09:57,088 INFO L268 CegarLoopResult]: For program point L513(lines 513 519) no Hoare annotation was computed. [2020-10-14 10:09:57,088 INFO L268 CegarLoopResult]: For program point L480(lines 480 484) no Hoare annotation was computed. [2020-10-14 10:09:57,089 INFO L268 CegarLoopResult]: For program point L480-2(lines 480 484) no Hoare annotation was computed. [2020-10-14 10:09:57,089 INFO L268 CegarLoopResult]: For program point L348(lines 348 356) no Hoare annotation was computed. [2020-10-14 10:09:57,089 INFO L264 CegarLoopResult]: At program point L183(lines 179 557) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~s__state~0 8656))) (or (and .cse0 (<= 8512 ssl3_accept_~s__state~0) (<= ssl3_accept_~blastFlag~0 2)) (and .cse0 (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)))) [2020-10-14 10:09:57,089 INFO L264 CegarLoopResult]: At program point L150(lines 146 568) the Hoare annotation is: (or (and (<= ssl3_accept_~s__state~0 8656) (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and (<= ssl3_accept_~s__state~0 8544) (<= 8512 ssl3_accept_~s__state~0) (<= ssl3_accept_~blastFlag~0 2))) [2020-10-14 10:09:57,089 INFO L268 CegarLoopResult]: For program point L84(lines 84 86) no Hoare annotation was computed. [2020-10-14 10:09:57,089 INFO L268 CegarLoopResult]: For program point L84-2(lines 81 87) no Hoare annotation was computed. [2020-10-14 10:09:57,090 INFO L264 CegarLoopResult]: At program point L547(lines 98 602) the Hoare annotation is: (let ((.cse0 (= ssl3_accept_~s__hit~0 0)) (.cse2 (<= ssl3_accept_~s__state~0 3)) (.cse1 (<= ssl3_accept_~blastFlag~0 3))) (or (and (not .cse0) .cse1) (and .cse0 .cse2) (<= ssl3_accept_~blastFlag~0 2) (and .cse2 (<= ssl3_accept_~blastFlag~0 4)) (and (<= 8448 ssl3_accept_~s__state~0) (<= ssl3_accept_~s__state~0 8448) (= 3 ssl3_accept_~s__s3__tmp__next_state___0~0) .cse1) (and (<= ssl3_accept_~s__state~0 8672) .cse1 (<= 8672 ssl3_accept_~s__state~0)))) [2020-10-14 10:09:57,090 INFO L264 CegarLoopResult]: At program point L349(lines 324 367) the Hoare annotation is: (or (and (<= ssl3_accept_~s__state~0 8656) (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and (<= ssl3_accept_~s__state~0 8544) (<= 8512 ssl3_accept_~s__state~0) (<= ssl3_accept_~blastFlag~0 2))) [2020-10-14 10:09:57,090 INFO L268 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-14 10:09:57,090 INFO L264 CegarLoopResult]: At program point L383(lines 374 406) the Hoare annotation is: (or (and (<= ssl3_accept_~s__state~0 8656) (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and (<= ssl3_accept_~s__state~0 8560) (<= 8512 ssl3_accept_~s__state~0) (<= ssl3_accept_~blastFlag~0 2))) [2020-10-14 10:09:57,090 INFO L268 CegarLoopResult]: For program point L284(lines 284 286) no Hoare annotation was computed. [2020-10-14 10:09:57,090 INFO L268 CegarLoopResult]: For program point L284-2(lines 207 546) no Hoare annotation was computed. [2020-10-14 10:09:57,091 INFO L268 CegarLoopResult]: For program point L185(lines 185 555) no Hoare annotation was computed. [2020-10-14 10:09:57,091 INFO L268 CegarLoopResult]: For program point L152(lines 152 566) no Hoare annotation was computed. [2020-10-14 10:09:57,091 INFO L268 CegarLoopResult]: For program point L119(lines 119 577) no Hoare annotation was computed. [2020-10-14 10:09:57,091 INFO L268 CegarLoopResult]: For program point L516(lines 516 518) no Hoare annotation was computed. [2020-10-14 10:09:57,091 INFO L268 CegarLoopResult]: For program point L516-1(lines 207 546) no Hoare annotation was computed. [2020-10-14 10:09:57,091 INFO L268 CegarLoopResult]: For program point L351(lines 351 353) no Hoare annotation was computed. [2020-10-14 10:09:57,091 INFO L268 CegarLoopResult]: For program point L318(lines 318 322) no Hoare annotation was computed. [2020-10-14 10:09:57,091 INFO L268 CegarLoopResult]: For program point L318-2(lines 207 546) no Hoare annotation was computed. [2020-10-14 10:09:57,092 INFO L264 CegarLoopResult]: At program point L120(lines 116 578) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~s__state~0 8496))) (or (and .cse0 (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and (<= 8480 ssl3_accept_~s__state~0) .cse0 (<= ssl3_accept_~blastFlag~0 2)))) [2020-10-14 10:09:57,092 INFO L264 CegarLoopResult]: At program point L517(line 517) the Hoare annotation is: false [2020-10-14 10:09:57,092 INFO L268 CegarLoopResult]: For program point L220(lines 220 222) no Hoare annotation was computed. [2020-10-14 10:09:57,092 INFO L268 CegarLoopResult]: For program point L584(lines 584 600) no Hoare annotation was computed. [2020-10-14 10:09:57,092 INFO L268 CegarLoopResult]: For program point L386(lines 386 404) no Hoare annotation was computed. [2020-10-14 10:09:57,092 INFO L268 CegarLoopResult]: For program point L188(lines 188 554) no Hoare annotation was computed. [2020-10-14 10:09:57,092 INFO L268 CegarLoopResult]: For program point L155(lines 155 565) no Hoare annotation was computed. [2020-10-14 10:09:57,092 INFO L268 CegarLoopResult]: For program point L122(lines 122 576) no Hoare annotation was computed. [2020-10-14 10:09:57,093 INFO L268 CegarLoopResult]: For program point L89(lines 89 93) no Hoare annotation was computed. [2020-10-14 10:09:57,093 INFO L268 CegarLoopResult]: For program point L89-1(lines 72 614) no Hoare annotation was computed. [2020-10-14 10:09:57,093 INFO L268 CegarLoopResult]: For program point L585(lines 585 599) no Hoare annotation was computed. [2020-10-14 10:09:57,093 INFO L268 CegarLoopResult]: For program point ssl3_acceptEXIT(lines 11 615) no Hoare annotation was computed. [2020-10-14 10:09:57,093 INFO L268 CegarLoopResult]: For program point L387(lines 387 393) no Hoare annotation was computed. [2020-10-14 10:09:57,093 INFO L264 CegarLoopResult]: At program point L189(lines 185 555) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~s__state~0 8656))) (or (and .cse0 (<= 8512 ssl3_accept_~s__state~0) (<= ssl3_accept_~blastFlag~0 2)) (and .cse0 (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)))) [2020-10-14 10:09:57,093 INFO L264 CegarLoopResult]: At program point L156(lines 152 566) the Hoare annotation is: (or (and (<= ssl3_accept_~s__state~0 8656) (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and (<= ssl3_accept_~s__state~0 8560) (<= 8512 ssl3_accept_~s__state~0) (<= ssl3_accept_~blastFlag~0 2))) [2020-10-14 10:09:57,093 INFO L264 CegarLoopResult]: At program point L123(lines 122 576) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~s__state~0 8496))) (or (and (= ssl3_accept_~s__hit~0 0) .cse0) (and .cse0 (<= ssl3_accept_~blastFlag~0 3)))) [2020-10-14 10:09:57,094 INFO L268 CegarLoopResult]: For program point L90(lines 90 92) no Hoare annotation was computed. [2020-10-14 10:09:57,094 INFO L268 CegarLoopResult]: For program point L586(lines 586 591) no Hoare annotation was computed. [2020-10-14 10:09:57,094 INFO L268 CegarLoopResult]: For program point L586-2(lines 585 599) no Hoare annotation was computed. [2020-10-14 10:09:57,094 INFO L268 CegarLoopResult]: For program point L256(lines 256 258) no Hoare annotation was computed. [2020-10-14 10:09:57,094 INFO L268 CegarLoopResult]: For program point L290(lines 290 294) no Hoare annotation was computed. [2020-10-14 10:09:57,094 INFO L268 CegarLoopResult]: For program point L290-2(lines 290 294) no Hoare annotation was computed. [2020-10-14 10:09:57,094 INFO L268 CegarLoopResult]: For program point L191(lines 191 553) no Hoare annotation was computed. [2020-10-14 10:09:57,094 INFO L268 CegarLoopResult]: For program point L158(lines 158 564) no Hoare annotation was computed. [2020-10-14 10:09:57,095 INFO L268 CegarLoopResult]: For program point L125(lines 125 575) no Hoare annotation was computed. [2020-10-14 10:09:57,095 INFO L268 CegarLoopResult]: For program point L588(lines 588 590) no Hoare annotation was computed. [2020-10-14 10:09:57,095 INFO L268 CegarLoopResult]: For program point ssl3_acceptFINAL(lines 11 615) no Hoare annotation was computed. [2020-10-14 10:09:57,095 INFO L268 CegarLoopResult]: For program point L456(lines 456 458) no Hoare annotation was computed. [2020-10-14 10:09:57,095 INFO L268 CegarLoopResult]: For program point L225(lines 225 232) no Hoare annotation was computed. [2020-10-14 10:09:57,095 INFO L268 CegarLoopResult]: For program point L225-2(lines 225 232) no Hoare annotation was computed. [2020-10-14 10:09:57,095 INFO L268 CegarLoopResult]: For program point L524(lines 524 528) no Hoare annotation was computed. [2020-10-14 10:09:57,095 INFO L268 CegarLoopResult]: For program point L491(lines 491 494) no Hoare annotation was computed. [2020-10-14 10:09:57,095 INFO L268 CegarLoopResult]: For program point L524-2(lines 524 528) no Hoare annotation was computed. [2020-10-14 10:09:57,096 INFO L268 CegarLoopResult]: For program point L425(lines 425 433) no Hoare annotation was computed. [2020-10-14 10:09:57,096 INFO L268 CegarLoopResult]: For program point L425-2(lines 425 433) no Hoare annotation was computed. [2020-10-14 10:09:57,096 INFO L268 CegarLoopResult]: For program point L227(lines 227 230) no Hoare annotation was computed. [2020-10-14 10:09:57,096 INFO L268 CegarLoopResult]: For program point L194(lines 194 552) no Hoare annotation was computed. [2020-10-14 10:09:57,096 INFO L268 CegarLoopResult]: For program point L161(lines 161 563) no Hoare annotation was computed. [2020-10-14 10:09:57,096 INFO L268 CegarLoopResult]: For program point L128(lines 128 574) no Hoare annotation was computed. [2020-10-14 10:09:57,096 INFO L268 CegarLoopResult]: For program point L327(lines 327 366) no Hoare annotation was computed. [2020-10-14 10:09:57,096 INFO L264 CegarLoopResult]: At program point L195(lines 191 553) the Hoare annotation is: (or (and (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and (<= ssl3_accept_~s__state~0 8672) (<= 8656 ssl3_accept_~s__state~0) (<= ssl3_accept_~blastFlag~0 2))) [2020-10-14 10:09:57,096 INFO L264 CegarLoopResult]: At program point L162(lines 158 564) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~s__state~0 8656))) (or (and .cse0 (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and .cse0 (<= 8512 ssl3_accept_~s__state~0) (<= ssl3_accept_~blastFlag~0 2)))) [2020-10-14 10:09:57,097 INFO L268 CegarLoopResult]: For program point L593(lines 593 597) no Hoare annotation was computed. [2020-10-14 10:09:57,097 INFO L268 CegarLoopResult]: For program point L428(lines 428 431) no Hoare annotation was computed. [2020-10-14 10:09:57,097 INFO L264 CegarLoopResult]: At program point L395(lines 386 404) the Hoare annotation is: (or (and (<= ssl3_accept_~s__state~0 8656) (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and (<= ssl3_accept_~s__state~0 8560) (<= 8512 ssl3_accept_~s__state~0) (<= ssl3_accept_~blastFlag~0 2))) [2020-10-14 10:09:57,097 INFO L268 CegarLoopResult]: For program point L197(lines 197 551) no Hoare annotation was computed. [2020-10-14 10:09:57,097 INFO L268 CegarLoopResult]: For program point L164(lines 164 562) no Hoare annotation was computed. [2020-10-14 10:09:57,097 INFO L268 CegarLoopResult]: For program point L131(lines 131 573) no Hoare annotation was computed. [2020-10-14 10:09:57,097 INFO L264 CegarLoopResult]: At program point L98-2(lines 98 602) the Hoare annotation is: (let ((.cse0 (= ssl3_accept_~s__hit~0 0)) (.cse2 (<= ssl3_accept_~s__state~0 3)) (.cse1 (<= ssl3_accept_~blastFlag~0 3))) (or (and (not .cse0) .cse1) (and .cse0 .cse2) (<= ssl3_accept_~blastFlag~0 2) (and .cse2 (<= ssl3_accept_~blastFlag~0 4)) (and (<= 8448 ssl3_accept_~s__state~0) (<= ssl3_accept_~s__state~0 8448) (= 3 ssl3_accept_~s__s3__tmp__next_state___0~0) .cse1) (and (<= ssl3_accept_~s__state~0 8672) .cse1 (<= 8672 ssl3_accept_~s__state~0)))) [2020-10-14 10:09:57,097 INFO L268 CegarLoopResult]: For program point L330(lines 330 365) no Hoare annotation was computed. [2020-10-14 10:09:57,097 INFO L268 CegarLoopResult]: For program point L330-1(lines 330 365) no Hoare annotation was computed. [2020-10-14 10:09:57,098 INFO L264 CegarLoopResult]: At program point L165(lines 164 562) the Hoare annotation is: (let ((.cse1 (= ssl3_accept_~s__hit~0 0)) (.cse0 (<= ssl3_accept_~s__state~0 8448))) (or (and (<= 8448 ssl3_accept_~s__state~0) (<= ssl3_accept_~blastFlag~0 2) .cse0) (and (not .cse1) .cse0 (<= ssl3_accept_~blastFlag~0 3)) (and .cse1 .cse0 (= 3 ssl3_accept_~s__s3__tmp__next_state___0~0)))) [2020-10-14 10:09:57,098 INFO L264 CegarLoopResult]: At program point L132(lines 125 575) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~s__state~0 8480))) (or (and (<= 8464 ssl3_accept_~s__state~0) .cse0 (<= ssl3_accept_~blastFlag~0 2)) (and (not (= ssl3_accept_~s__hit~0 0)) .cse0 (<= ssl3_accept_~blastFlag~0 3)))) [2020-10-14 10:09:57,098 INFO L268 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-14 10:09:57,098 INFO L268 CegarLoopResult]: For program point L496(lines 496 498) no Hoare annotation was computed. [2020-10-14 10:09:57,098 INFO L268 CegarLoopResult]: For program point L496-2(lines 207 546) no Hoare annotation was computed. [2020-10-14 10:09:57,098 INFO L268 CegarLoopResult]: For program point L331(lines 331 362) no Hoare annotation was computed. [2020-10-14 10:09:57,098 INFO L268 CegarLoopResult]: For program point L398(lines 398 400) no Hoare annotation was computed. [2020-10-14 10:09:57,098 INFO L268 CegarLoopResult]: For program point L200(lines 200 550) no Hoare annotation was computed. [2020-10-14 10:09:57,098 INFO L268 CegarLoopResult]: For program point L167(lines 167 561) no Hoare annotation was computed. [2020-10-14 10:09:57,099 INFO L268 CegarLoopResult]: For program point L134(lines 134 572) no Hoare annotation was computed. [2020-10-14 10:09:57,099 INFO L268 CegarLoopResult]: For program point L101(lines 101 583) no Hoare annotation was computed. [2020-10-14 10:09:57,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 10:09:57 BoogieIcfgContainer [2020-10-14 10:09:57,126 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 10:09:57,128 INFO L168 Benchmark]: Toolchain (without parser) took 98044.75 ms. Allocated memory was 145.8 MB in the beginning and 1.7 GB in the end (delta: 1.5 GB). Free memory was 101.5 MB in the beginning and 200.9 MB in the end (delta: -99.4 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2020-10-14 10:09:57,128 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-10-14 10:09:57,129 INFO L168 Benchmark]: CACSL2BoogieTranslator took 514.70 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 101.5 MB in the beginning and 176.5 MB in the end (delta: -75.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2020-10-14 10:09:57,130 INFO L168 Benchmark]: Boogie Preprocessor took 59.17 ms. Allocated memory is still 201.9 MB. Free memory was 176.5 MB in the beginning and 174.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-14 10:09:57,130 INFO L168 Benchmark]: RCFGBuilder took 838.50 ms. Allocated memory is still 201.9 MB. Free memory was 174.5 MB in the beginning and 123.5 MB in the end (delta: 51.0 MB). Peak memory consumption was 51.0 MB. Max. memory is 7.1 GB. [2020-10-14 10:09:57,131 INFO L168 Benchmark]: TraceAbstraction took 96626.82 ms. Allocated memory was 201.9 MB in the beginning and 1.7 GB in the end (delta: 1.5 GB). Free memory was 122.5 MB in the beginning and 200.9 MB in the end (delta: -78.4 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2020-10-14 10:09:57,133 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 514.70 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 101.5 MB in the beginning and 176.5 MB in the end (delta: -75.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.17 ms. Allocated memory is still 201.9 MB. Free memory was 176.5 MB in the beginning and 174.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 838.50 ms. Allocated memory is still 201.9 MB. Free memory was 174.5 MB in the beginning and 123.5 MB in the end (delta: 51.0 MB). Peak memory consumption was 51.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 96626.82 ms. Allocated memory was 201.9 MB in the beginning and 1.7 GB in the end (delta: 1.5 GB). Free memory was 122.5 MB in the beginning and 200.9 MB in the end (delta: -78.4 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 618]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 158]: Loop Invariant Derived loop invariant: ((s__state <= 8656 && !(s__hit == 0)) && blastFlag <= 3) || ((s__state <= 8656 && 8512 <= s__state) && blastFlag <= 2) - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: ((s__state <= 8496 && !(s__hit == 0)) && blastFlag <= 3) || ((8480 <= s__state && s__state <= 8496) && blastFlag <= 2) - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: (!(s__hit == 0) && blastFlag <= 3) || ((s__state <= 8672 && 8656 <= s__state) && blastFlag <= 2) - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: ((8512 <= s__state && s__state <= 8528) && blastFlag <= 2) || ((s__state <= 8656 && !(s__hit == 0)) && blastFlag <= 3) - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (blastFlag <= 2 && 8672 <= s__state) || ((!(s__hit == 0) && blastFlag <= 3) && 8672 <= s__state) - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: ((s__state <= 8656 && 8512 <= s__state) && blastFlag <= 2) || ((s__state <= 8656 && !(s__hit == 0)) && blastFlag <= 3) - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: (((blastFlag <= 2 && s__state <= 8448) || ((!(s__hit == 0) && s__state <= 8448) && blastFlag <= 3)) || (blastFlag <= 2 && 8672 <= s__state)) || ((!(s__hit == 0) && blastFlag <= 3) && 8672 <= s__state) - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: ((s__state <= 8656 && !(s__hit == 0)) && blastFlag <= 3) || ((s__state <= 8544 && 8512 <= s__state) && blastFlag <= 2) - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: blastFlag <= 3 && 8672 <= s__state - InvariantResult [Line: 386]: Loop Invariant Derived loop invariant: ((s__state <= 8656 && !(s__hit == 0)) && blastFlag <= 3) || ((s__state <= 8560 && 8512 <= s__state) && blastFlag <= 2) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: ((s__state <= 8656 && !(s__hit == 0)) && blastFlag <= 3) || ((s__state <= 8544 && 8512 <= s__state) && blastFlag <= 2) - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: ((s__state <= 8656 && 8512 <= s__state) && blastFlag <= 2) || ((s__state <= 8656 && !(s__hit == 0)) && blastFlag <= 3) - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: (((((!(s__hit == 0) && blastFlag <= 3) || (s__hit == 0 && s__state <= 3)) || blastFlag <= 2) || (s__state <= 3 && blastFlag <= 4)) || (((8448 <= s__state && s__state <= 8448) && 3 == s__s3__tmp__next_state___0) && blastFlag <= 3)) || ((s__state <= 8672 && blastFlag <= 3) && 8672 <= s__state) - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: ((8464 <= s__state && s__state <= 8480) && blastFlag <= 2) || ((!(s__hit == 0) && s__state <= 8480) && blastFlag <= 3) - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: (((8448 <= s__state && blastFlag <= 2) && s__state <= 8448) || ((!(s__hit == 0) && s__state <= 8448) && blastFlag <= 3)) || ((s__hit == 0 && s__state <= 8448) && 3 == s__s3__tmp__next_state___0) - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: (s__hit == 0 && s__state <= 8496) || (s__state <= 8496 && blastFlag <= 3) - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: ((s__state <= 8656 && !(s__hit == 0)) && blastFlag <= 3) || ((s__state <= 8560 && 8512 <= s__state) && blastFlag <= 2) - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: ((s__state <= 8656 && 8512 <= s__state) && blastFlag <= 2) || ((s__state <= 8656 && !(s__hit == 0)) && blastFlag <= 3) - InvariantResult [Line: 374]: Loop Invariant Derived loop invariant: ((s__state <= 8656 && !(s__hit == 0)) && blastFlag <= 3) || ((s__state <= 8560 && 8512 <= s__state) && blastFlag <= 2) - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: ((s__state <= 8656 && !(s__hit == 0)) && blastFlag <= 3) || ((s__state <= 8512 && blastFlag <= 2) && 8496 <= s__state) - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: (((((!(s__hit == 0) && blastFlag <= 3) || (s__hit == 0 && s__state <= 3)) || blastFlag <= 2) || (s__state <= 3 && blastFlag <= 4)) || (((8448 <= s__state && s__state <= 8448) && 3 == s__s3__tmp__next_state___0) && blastFlag <= 3)) || ((s__state <= 8672 && blastFlag <= 3) && 8672 <= s__state) - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: ((s__state <= 8656 && 8512 <= s__state) && blastFlag <= 2) || ((s__state <= 8656 && !(s__hit == 0)) && blastFlag <= 3) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 154 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 94.1s, OverallIterations: 26, TraceHistogramMax: 26, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5905 SDtfs, 2314 SDslu, 3075 SDs, 0 SdLazy, 2376 SolverSat, 746 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3960occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 26 MinimizatonAttempts, 2647 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 33 LocationsWithAnnotation, 58 PreInvPairs, 397 NumberOfFragments, 546 HoareAnnotationTreeSize, 58 FomulaSimplifications, 15880 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 33 FomulaSimplificationsInter, 3417 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 83.3s InterpolantComputationTime, 8111 NumberOfCodeBlocks, 8111 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 8085 ConstructedInterpolants, 0 QuantifiedInterpolants, 3645683 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 25 PerfectInterpolantSequences, 29792/29818 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...