/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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/heap-manipulation/bubble_sort_linux-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 23:26:38,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 23:26:38,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 23:26:38,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 23:26:38,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 23:26:38,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 23:26:38,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 23:26:38,912 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 23:26:38,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 23:26:38,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 23:26:38,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 23:26:38,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 23:26:38,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 23:26:38,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 23:26:38,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 23:26:38,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 23:26:38,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 23:26:38,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 23:26:38,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 23:26:38,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 23:26:38,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 23:26:38,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 23:26:38,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 23:26:38,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 23:26:38,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 23:26:38,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 23:26:38,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 23:26:38,932 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 23:26:38,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 23:26:38,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 23:26:38,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 23:26:38,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 23:26:38,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 23:26:38,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 23:26:38,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 23:26:38,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 23:26:38,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 23:26:38,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 23:26:38,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 23:26:38,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 23:26:38,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 23:26:38,944 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 23:26:38,985 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 23:26:38,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 23:26:38,989 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 23:26:38,989 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 23:26:38,989 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 23:26:38,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 23:26:38,990 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 23:26:38,990 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 23:26:38,990 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 23:26:38,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 23:26:38,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 23:26:38,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 23:26:38,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 23:26:38,992 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 23:26:38,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 23:26:38,992 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 23:26:38,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 23:26:38,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 23:26:38,993 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 23:26:38,993 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 23:26:38,993 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 23:26:38,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 23:26:38,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 23:26:38,994 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 23:26:38,994 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 23:26:38,995 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 23:26:38,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 23:26:38,996 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 23:26:38,996 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 23:26:38,996 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 23:26:39,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 23:26:39,314 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 23:26:39,319 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 23:26:39,320 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 23:26:39,321 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 23:26:39,321 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-2.i [2020-10-14 23:26:39,376 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6076aa804/d46a9d9a1afa46d49bc884c243ddacb2/FLAGa84db229f [2020-10-14 23:26:39,972 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 23:26:39,973 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-2.i [2020-10-14 23:26:39,995 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6076aa804/d46a9d9a1afa46d49bc884c243ddacb2/FLAGa84db229f [2020-10-14 23:26:40,257 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6076aa804/d46a9d9a1afa46d49bc884c243ddacb2 [2020-10-14 23:26:40,265 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 23:26:40,267 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 23:26:40,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 23:26:40,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 23:26:40,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 23:26:40,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:26:40" (1/1) ... [2020-10-14 23:26:40,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30f0fe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:26:40, skipping insertion in model container [2020-10-14 23:26:40,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:26:40" (1/1) ... [2020-10-14 23:26:40,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 23:26:40,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 23:26:40,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:26:40,858 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 23:26:40,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:26:41,055 INFO L208 MainTranslator]: Completed translation [2020-10-14 23:26:41,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:26:41 WrapperNode [2020-10-14 23:26:41,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 23:26:41,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 23:26:41,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 23:26:41,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 23:26:41,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:26:41" (1/1) ... [2020-10-14 23:26:41,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:26:41" (1/1) ... [2020-10-14 23:26:41,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:26:41" (1/1) ... [2020-10-14 23:26:41,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:26:41" (1/1) ... [2020-10-14 23:26:41,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:26:41" (1/1) ... [2020-10-14 23:26:41,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:26:41" (1/1) ... [2020-10-14 23:26:41,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:26:41" (1/1) ... [2020-10-14 23:26:41,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 23:26:41,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 23:26:41,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 23:26:41,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 23:26:41,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:26:41" (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 23:26:41,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 23:26:41,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 23:26:41,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-14 23:26:41,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-14 23:26:41,229 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-10-14 23:26:41,229 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2020-10-14 23:26:41,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-14 23:26:41,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2020-10-14 23:26:41,231 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-10-14 23:26:41,231 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2020-10-14 23:26:41,231 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2020-10-14 23:26:41,231 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2020-10-14 23:26:41,232 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2020-10-14 23:26:41,232 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2020-10-14 23:26:41,232 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2020-10-14 23:26:41,233 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2020-10-14 23:26:41,233 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 23:26:41,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 23:26:41,233 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-14 23:26:41,234 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-14 23:26:41,234 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-14 23:26:41,235 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-14 23:26:41,235 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-14 23:26:41,235 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-14 23:26:41,237 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-14 23:26:41,237 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-14 23:26:41,237 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-14 23:26:41,238 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-14 23:26:41,238 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-14 23:26:41,238 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-14 23:26:41,238 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-14 23:26:41,238 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-14 23:26:41,238 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-14 23:26:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-14 23:26:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-14 23:26:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-14 23:26:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-14 23:26:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-14 23:26:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-14 23:26:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-14 23:26:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-14 23:26:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-14 23:26:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-14 23:26:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-14 23:26:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-14 23:26:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-14 23:26:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-14 23:26:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-14 23:26:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-14 23:26:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-14 23:26:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-14 23:26:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-14 23:26:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-14 23:26:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-14 23:26:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-14 23:26:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-14 23:26:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-14 23:26:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-14 23:26:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-14 23:26:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-14 23:26:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-14 23:26:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-14 23:26:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-14 23:26:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-14 23:26:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-14 23:26:41,245 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-14 23:26:41,245 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-14 23:26:41,245 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-14 23:26:41,245 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-14 23:26:41,245 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-14 23:26:41,245 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 23:26:41,246 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 23:26:41,246 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-14 23:26:41,246 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 23:26:41,246 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-14 23:26:41,246 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-14 23:26:41,246 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-14 23:26:41,247 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-14 23:26:41,247 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 23:26:41,247 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-14 23:26:41,247 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-14 23:26:41,247 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 23:26:41,247 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-14 23:26:41,248 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-14 23:26:41,248 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-14 23:26:41,248 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-14 23:26:41,248 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-14 23:26:41,248 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-14 23:26:41,248 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-14 23:26:41,248 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-14 23:26:41,249 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-14 23:26:41,249 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-14 23:26:41,249 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-14 23:26:41,249 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-14 23:26:41,249 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-14 23:26:41,249 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-14 23:26:41,249 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-14 23:26:41,249 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-14 23:26:41,249 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-14 23:26:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-14 23:26:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-14 23:26:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-14 23:26:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-14 23:26:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-14 23:26:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-14 23:26:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-14 23:26:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-14 23:26:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-14 23:26:41,251 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-14 23:26:41,251 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-14 23:26:41,251 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-14 23:26:41,251 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-14 23:26:41,251 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-14 23:26:41,252 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-14 23:26:41,252 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-14 23:26:41,252 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-14 23:26:41,252 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-14 23:26:41,252 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-14 23:26:41,252 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-14 23:26:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-14 23:26:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-10-14 23:26:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-10-14 23:26:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-10-14 23:26:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-10-14 23:26:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-10-14 23:26:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-10-14 23:26:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-10-14 23:26:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-10-14 23:26:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-10-14 23:26:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-10-14 23:26:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-10-14 23:26:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-10-14 23:26:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-10-14 23:26:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-10-14 23:26:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-10-14 23:26:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-10-14 23:26:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-10-14 23:26:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-10-14 23:26:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-10-14 23:26:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-10-14 23:26:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-10-14 23:26:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-10-14 23:26:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-10-14 23:26:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-10-14 23:26:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-10-14 23:26:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-10-14 23:26:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-10-14 23:26:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-10-14 23:26:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-10-14 23:26:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-10-14 23:26:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-10-14 23:26:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-10-14 23:26:41,259 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-10-14 23:26:41,259 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-10-14 23:26:41,259 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-10-14 23:26:41,259 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-10-14 23:26:41,259 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-10-14 23:26:41,259 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-10-14 23:26:41,260 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-14 23:26:41,260 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-10-14 23:26:41,260 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-10-14 23:26:41,260 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-10-14 23:26:41,260 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-10-14 23:26:41,260 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-14 23:26:41,261 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-10-14 23:26:41,261 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-10-14 23:26:41,261 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-10-14 23:26:41,261 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-10-14 23:26:41,261 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-10-14 23:26:41,261 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-10-14 23:26:41,261 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-10-14 23:26:41,262 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-10-14 23:26:41,262 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-10-14 23:26:41,262 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-10-14 23:26:41,262 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-10-14 23:26:41,262 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-10-14 23:26:41,262 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-10-14 23:26:41,263 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-10-14 23:26:41,263 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-10-14 23:26:41,263 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-10-14 23:26:41,263 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-10-14 23:26:41,263 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-10-14 23:26:41,263 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-10-14 23:26:41,263 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-10-14 23:26:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-10-14 23:26:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-10-14 23:26:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-10-14 23:26:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-10-14 23:26:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-10-14 23:26:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-10-14 23:26:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-10-14 23:26:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-10-14 23:26:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-10-14 23:26:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-10-14 23:26:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-10-14 23:26:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-10-14 23:26:41,266 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-10-14 23:26:41,266 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-10-14 23:26:41,266 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-10-14 23:26:41,266 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-10-14 23:26:41,266 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-10-14 23:26:41,266 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-10-14 23:26:41,266 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-10-14 23:26:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-10-14 23:26:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-10-14 23:26:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-10-14 23:26:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-10-14 23:26:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-10-14 23:26:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-10-14 23:26:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-10-14 23:26:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-10-14 23:26:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-10-14 23:26:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-10-14 23:26:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-10-14 23:26:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-10-14 23:26:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-10-14 23:26:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-10-14 23:26:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-10-14 23:26:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-10-14 23:26:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-10-14 23:26:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-10-14 23:26:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 23:26:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-10-14 23:26:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2020-10-14 23:26:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 23:26:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-14 23:26:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 23:26:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2020-10-14 23:26:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-10-14 23:26:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2020-10-14 23:26:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2020-10-14 23:26:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 23:26:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 23:26:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2020-10-14 23:26:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2020-10-14 23:26:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 23:26:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2020-10-14 23:26:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 23:26:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2020-10-14 23:26:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2020-10-14 23:26:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 23:26:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 23:26:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 23:26:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 23:26:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 23:26:42,105 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 23:26:42,105 INFO L295 CfgBuilder]: Removed 41 assume(true) statements. [2020-10-14 23:26:42,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:26:42 BoogieIcfgContainer [2020-10-14 23:26:42,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 23:26:42,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 23:26:42,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 23:26:42,115 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 23:26:42,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:26:40" (1/3) ... [2020-10-14 23:26:42,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ab042f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:26:42, skipping insertion in model container [2020-10-14 23:26:42,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:26:41" (2/3) ... [2020-10-14 23:26:42,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ab042f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:26:42, skipping insertion in model container [2020-10-14 23:26:42,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:26:42" (3/3) ... [2020-10-14 23:26:42,119 INFO L109 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-2.i [2020-10-14 23:26:42,129 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 23:26:42,137 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 23:26:42,153 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 23:26:42,177 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 23:26:42,177 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 23:26:42,178 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 23:26:42,178 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 23:26:42,178 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 23:26:42,178 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 23:26:42,178 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 23:26:42,178 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 23:26:42,200 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2020-10-14 23:26:42,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 23:26:42,206 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:26:42,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:26:42,208 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:26:42,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:26:42,214 INFO L82 PathProgramCache]: Analyzing trace with hash -663354135, now seen corresponding path program 1 times [2020-10-14 23:26:42,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:26:42,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [497573460] [2020-10-14 23:26:42,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:26:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:42,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:42,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:42,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:42,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 23:26:42,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:26:42,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-10-14 23:26:42,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:42,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:42,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:26:42,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 23:26:42,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 23:26:42,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 23:26:42,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:26:42,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:42,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:42,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:42,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:42,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:42,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 23:26:42,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:42,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:42,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:42,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:42,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:26:42,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:26:42,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 23:26:42,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:42,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:42,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:42,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:42,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:42,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:26:42,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 23:26:42,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:42,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:42,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:42,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:42,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:26:42,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:26:42,825 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 23:26:42,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [497573460] [2020-10-14 23:26:42,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:26:42,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 23:26:42,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495893099] [2020-10-14 23:26:42,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 23:26:42,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:26:42,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 23:26:42,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-14 23:26:42,850 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 7 states. [2020-10-14 23:26:43,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:26:43,696 INFO L93 Difference]: Finished difference Result 301 states and 487 transitions. [2020-10-14 23:26:43,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 23:26:43,698 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-10-14 23:26:43,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:26:43,710 INFO L225 Difference]: With dead ends: 301 [2020-10-14 23:26:43,710 INFO L226 Difference]: Without dead ends: 147 [2020-10-14 23:26:43,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-14 23:26:43,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-14 23:26:43,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 129. [2020-10-14 23:26:43,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-10-14 23:26:43,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2020-10-14 23:26:43,802 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 149 transitions. Word has length 14 [2020-10-14 23:26:43,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:26:43,803 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 149 transitions. [2020-10-14 23:26:43,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 23:26:43,803 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 149 transitions. [2020-10-14 23:26:43,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-14 23:26:43,806 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:26:43,806 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] [2020-10-14 23:26:43,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 23:26:43,806 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:26:43,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:26:43,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1411633869, now seen corresponding path program 1 times [2020-10-14 23:26:43,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:26:43,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2108788668] [2020-10-14 23:26:43,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:26:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:43,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:44,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:44,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-14 23:26:44,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:44,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 497 [2020-10-14 23:26:44,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:44,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:44,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 23:26:44,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 23:26:44,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 23:26:44,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:26:44,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:26:44,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:44,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:44,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:44,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:44,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:44,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 23:26:44,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:44,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:44,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:44,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:44,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:26:44,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:26:44,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 23:26:44,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:44,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:44,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:44,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 23:26:44,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:44,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-14 23:26:44,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:44,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:44,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 23:26:44,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:44,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 23:26:44,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:26:44,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:26:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:44,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:44,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:44,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 23:26:44,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:44,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-14 23:26:44,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:44,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:44,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 23:26:44,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:44,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 23:26:44,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:26:44,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 23:26:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:45,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:45,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:45,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 23:26:45,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:45,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 23:26:45,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:45,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:45,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:26:45,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:45,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 23:26:45,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:26:45,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:26:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:45,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:45,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:45,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:45,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:45,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 23:26:45,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:45,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:45,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:26:45,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:45,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:26:45,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:26:45,162 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 23:26:45,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2108788668] [2020-10-14 23:26:45,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:26:45,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-14 23:26:45,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374895356] [2020-10-14 23:26:45,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 23:26:45,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:26:45,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 23:26:45,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2020-10-14 23:26:45,166 INFO L87 Difference]: Start difference. First operand 129 states and 149 transitions. Second operand 16 states. [2020-10-14 23:26:47,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:26:47,539 INFO L93 Difference]: Finished difference Result 244 states and 291 transitions. [2020-10-14 23:26:47,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 23:26:47,540 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 37 [2020-10-14 23:26:47,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:26:47,545 INFO L225 Difference]: With dead ends: 244 [2020-10-14 23:26:47,545 INFO L226 Difference]: Without dead ends: 238 [2020-10-14 23:26:47,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=196, Invalid=860, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 23:26:47,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-14 23:26:47,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 209. [2020-10-14 23:26:47,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-10-14 23:26:47,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 251 transitions. [2020-10-14 23:26:47,583 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 251 transitions. Word has length 37 [2020-10-14 23:26:47,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:26:47,584 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 251 transitions. [2020-10-14 23:26:47,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 23:26:47,584 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 251 transitions. [2020-10-14 23:26:47,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-14 23:26:47,585 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:26:47,585 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] [2020-10-14 23:26:47,586 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 23:26:47,586 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:26:47,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:26:47,586 INFO L82 PathProgramCache]: Analyzing trace with hash 2082496891, now seen corresponding path program 1 times [2020-10-14 23:26:47,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:26:47,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2051577344] [2020-10-14 23:26:47,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:26:47,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:47,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:48,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:48,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 23:26:48,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:48,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 707 [2020-10-14 23:26:48,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:48,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:48,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 23:26:48,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 23:26:48,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-14 23:26:48,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:48,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:26:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:48,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:48,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:48,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:48,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:48,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 23:26:48,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:48,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:48,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:48,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:48,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:26:48,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:48,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 23:26:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:48,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:48,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:48,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 23:26:48,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:48,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 417 [2020-10-14 23:26:48,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:48,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:48,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 23:26:48,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:48,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 23:26:48,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 23:26:48,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:26:49,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:49,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:49,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:49,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 23:26:49,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:49,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 347 [2020-10-14 23:26:49,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:49,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:49,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 23:26:49,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:49,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 23:26:49,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:26:49,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 23:26:49,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:49,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:49,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:49,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 23:26:49,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:49,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-14 23:26:49,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:49,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:49,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 23:26:49,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:49,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 23:26:49,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:26:49,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:26:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:49,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:49,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:49,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:49,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:49,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 23:26:49,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:49,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:49,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:26:49,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:49,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:26:49,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:26:50,042 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 23:26:50,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2051577344] [2020-10-14 23:26:50,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:26:50,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-14 23:26:50,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046490129] [2020-10-14 23:26:50,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-14 23:26:50,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:26:50,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-14 23:26:50,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2020-10-14 23:26:50,045 INFO L87 Difference]: Start difference. First operand 209 states and 251 transitions. Second operand 18 states. [2020-10-14 23:26:53,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:26:53,117 INFO L93 Difference]: Finished difference Result 329 states and 399 transitions. [2020-10-14 23:26:53,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-14 23:26:53,118 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 40 [2020-10-14 23:26:53,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:26:53,122 INFO L225 Difference]: With dead ends: 329 [2020-10-14 23:26:53,122 INFO L226 Difference]: Without dead ends: 326 [2020-10-14 23:26:53,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=207, Invalid=1199, Unknown=0, NotChecked=0, Total=1406 [2020-10-14 23:26:53,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-10-14 23:26:53,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 290. [2020-10-14 23:26:53,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-14 23:26:53,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 353 transitions. [2020-10-14 23:26:53,163 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 353 transitions. Word has length 40 [2020-10-14 23:26:53,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:26:53,164 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 353 transitions. [2020-10-14 23:26:53,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-14 23:26:53,164 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 353 transitions. [2020-10-14 23:26:53,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-14 23:26:53,165 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:26:53,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:26:53,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 23:26:53,166 INFO L427 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:26:53,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:26:53,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1376068061, now seen corresponding path program 1 times [2020-10-14 23:26:53,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:26:53,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57396213] [2020-10-14 23:26:53,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:26:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:53,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:53,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:53,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-14 23:26:53,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:53,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 571 [2020-10-14 23:26:53,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:53,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:53,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 23:26:53,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 23:26:53,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-14 23:26:53,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:26:53,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:26:53,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:53,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:53,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:53,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:53,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:53,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 23:26:53,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:53,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:53,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:53,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:53,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:26:53,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:53,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 23:26:53,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:53,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:54,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:54,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 23:26:54,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:54,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-14 23:26:54,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:54,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:54,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 23:26:54,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:54,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 23:26:54,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:54,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:26:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:54,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:54,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:54,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 23:26:54,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:54,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-14 23:26:54,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:54,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:54,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 23:26:54,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:54,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 23:26:54,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:54,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 23:26:54,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:54,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:54,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:54,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 23:26:54,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:54,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 23:26:54,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:54,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:54,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 23:26:54,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:54,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 23:26:54,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:26:54,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:26:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:54,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:54,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:54,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:54,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:54,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 23:26:54,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:54,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:54,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:26:54,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:54,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:26:54,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:26:54,767 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 23:26:54,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57396213] [2020-10-14 23:26:54,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:26:54,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-14 23:26:54,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818872800] [2020-10-14 23:26:54,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 23:26:54,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:26:54,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 23:26:54,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2020-10-14 23:26:54,770 INFO L87 Difference]: Start difference. First operand 290 states and 353 transitions. Second operand 19 states. [2020-10-14 23:26:57,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:26:57,502 INFO L93 Difference]: Finished difference Result 320 states and 386 transitions. [2020-10-14 23:26:57,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 23:26:57,504 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 43 [2020-10-14 23:26:57,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:26:57,510 INFO L225 Difference]: With dead ends: 320 [2020-10-14 23:26:57,510 INFO L226 Difference]: Without dead ends: 317 [2020-10-14 23:26:57,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=203, Invalid=1057, Unknown=0, NotChecked=0, Total=1260 [2020-10-14 23:26:57,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-10-14 23:26:57,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 290. [2020-10-14 23:26:57,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-14 23:26:57,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 352 transitions. [2020-10-14 23:26:57,556 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 352 transitions. Word has length 43 [2020-10-14 23:26:57,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:26:57,556 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 352 transitions. [2020-10-14 23:26:57,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 23:26:57,556 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 352 transitions. [2020-10-14 23:26:57,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-14 23:26:57,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:26:57,558 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] [2020-10-14 23:26:57,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 23:26:57,558 INFO L427 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:26:57,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:26:57,559 INFO L82 PathProgramCache]: Analyzing trace with hash 796266502, now seen corresponding path program 1 times [2020-10-14 23:26:57,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:26:57,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1046820213] [2020-10-14 23:26:57,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:26:57,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:57,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:58,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:58,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-14 23:26:58,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:58,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 492 [2020-10-14 23:26:58,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:58,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:58,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 23:26:58,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 23:26:58,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 23:26:58,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:26:58,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:26:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:58,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:58,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:58,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:58,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:58,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:26:58,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:58,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:58,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:58,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:58,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:26:58,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:58,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 23:26:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:58,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:58,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:58,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 23:26:58,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:58,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-14 23:26:58,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:58,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:58,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 23:26:58,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:58,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 23:26:58,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:58,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:26:58,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:58,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:58,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:58,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 23:26:58,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:58,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-14 23:26:58,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:58,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:58,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 23:26:58,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:58,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 23:26:58,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:26:58,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 23:26:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:58,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:59,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:59,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 23:26:59,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:59,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-14 23:26:59,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:59,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:59,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 23:26:59,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:59,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 23:26:59,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:26:59,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:26:59,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:59,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:59,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:59,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:59,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:59,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 23:26:59,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:59,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:59,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:26:59,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:59,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:26:59,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:26:59,488 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 23:26:59,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1046820213] [2020-10-14 23:26:59,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:26:59,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-14 23:26:59,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571708285] [2020-10-14 23:26:59,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 23:26:59,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:26:59,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 23:26:59,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2020-10-14 23:26:59,490 INFO L87 Difference]: Start difference. First operand 290 states and 352 transitions. Second operand 19 states. [2020-10-14 23:27:02,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:27:02,851 INFO L93 Difference]: Finished difference Result 323 states and 389 transitions. [2020-10-14 23:27:02,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 23:27:02,854 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 46 [2020-10-14 23:27:02,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:27:02,857 INFO L225 Difference]: With dead ends: 323 [2020-10-14 23:27:02,857 INFO L226 Difference]: Without dead ends: 320 [2020-10-14 23:27:02,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=189, Invalid=1217, Unknown=0, NotChecked=0, Total=1406 [2020-10-14 23:27:02,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-10-14 23:27:02,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 290. [2020-10-14 23:27:02,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-14 23:27:02,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 351 transitions. [2020-10-14 23:27:02,883 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 351 transitions. Word has length 46 [2020-10-14 23:27:02,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:27:02,883 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 351 transitions. [2020-10-14 23:27:02,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 23:27:02,883 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 351 transitions. [2020-10-14 23:27:02,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-14 23:27:02,885 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:27:02,885 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] [2020-10-14 23:27:02,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 23:27:02,885 INFO L427 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:27:02,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:27:02,886 INFO L82 PathProgramCache]: Analyzing trace with hash 262392368, now seen corresponding path program 1 times [2020-10-14 23:27:02,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:27:02,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1478503486] [2020-10-14 23:27:02,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:27:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:02,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:03,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:04,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:04,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-14 23:27:04,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:27:04,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1210 [2020-10-14 23:27:04,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:04,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:04,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 23:27:04,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 23:27:04,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 23:27:04,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:04,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:27:04,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:04,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:04,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:04,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:04,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:04,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 23:27:04,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:04,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:04,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:27:04,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:04,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:27:04,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:04,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 23:27:04,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:04,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:04,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:04,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 23:27:04,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:04,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-10-14 23:27:04,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:04,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:04,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 23:27:04,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:04,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 23:27:04,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:04,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:27:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:04,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:04,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:04,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 23:27:04,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:04,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-10-14 23:27:04,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:04,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:04,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 23:27:04,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:04,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 23:27:04,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:27:05,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 23:27:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:05,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:05,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:05,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 23:27:05,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:05,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 23:27:05,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:05,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:05,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 23:27:05,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:05,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 23:27:05,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:27:05,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:27:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:05,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:05,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:05,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:05,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:05,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 23:27:05,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:05,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:05,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:27:05,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:05,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:27:05,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:27:05,501 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 23:27:05,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1478503486] [2020-10-14 23:27:05,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:27:05,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-14 23:27:05,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902987719] [2020-10-14 23:27:05,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 23:27:05,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:27:05,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 23:27:05,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2020-10-14 23:27:05,505 INFO L87 Difference]: Start difference. First operand 290 states and 351 transitions. Second operand 19 states. [2020-10-14 23:27:08,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:27:08,534 INFO L93 Difference]: Finished difference Result 322 states and 387 transitions. [2020-10-14 23:27:08,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 23:27:08,535 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 49 [2020-10-14 23:27:08,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:27:08,538 INFO L225 Difference]: With dead ends: 322 [2020-10-14 23:27:08,538 INFO L226 Difference]: Without dead ends: 319 [2020-10-14 23:27:08,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=191, Invalid=1141, Unknown=0, NotChecked=0, Total=1332 [2020-10-14 23:27:08,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2020-10-14 23:27:08,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 290. [2020-10-14 23:27:08,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-14 23:27:08,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 350 transitions. [2020-10-14 23:27:08,564 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 350 transitions. Word has length 49 [2020-10-14 23:27:08,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:27:08,564 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 350 transitions. [2020-10-14 23:27:08,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 23:27:08,565 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 350 transitions. [2020-10-14 23:27:08,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-14 23:27:08,566 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:27:08,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:27:08,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 23:27:08,567 INFO L427 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:27:08,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:27:08,567 INFO L82 PathProgramCache]: Analyzing trace with hash -103719498, now seen corresponding path program 1 times [2020-10-14 23:27:08,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:27:08,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [605712751] [2020-10-14 23:27:08,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:27:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:08,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:09,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:09,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 23:27:09,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:09,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 570 [2020-10-14 23:27:09,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:09,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:09,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 23:27:09,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 23:27:09,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 23:27:09,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:27:09,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:27:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:09,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:09,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:09,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:09,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:09,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:27:09,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:09,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:09,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:27:09,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:09,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:27:09,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:27:09,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 23:27:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:09,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:09,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:09,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 23:27:09,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:09,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-10-14 23:27:09,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:09,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:09,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 23:27:09,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:09,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 23:27:09,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:09,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:27:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:09,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:09,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:09,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 23:27:09,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:09,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-14 23:27:09,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:09,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:09,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 23:27:09,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:09,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 23:27:09,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:27:09,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 23:27:09,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:09,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:10,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:10,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 23:27:10,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:10,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 23:27:10,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:10,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:10,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 23:27:10,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:10,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 23:27:10,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:27:10,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:27:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:10,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:10,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:10,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:10,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:10,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 23:27:10,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:10,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:10,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:27:10,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:10,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:27:10,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:27:10,204 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 23:27:10,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [605712751] [2020-10-14 23:27:10,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:27:10,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-14 23:27:10,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969178039] [2020-10-14 23:27:10,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 23:27:10,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:27:10,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 23:27:10,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2020-10-14 23:27:10,209 INFO L87 Difference]: Start difference. First operand 290 states and 350 transitions. Second operand 19 states. [2020-10-14 23:27:13,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:27:13,565 INFO L93 Difference]: Finished difference Result 325 states and 391 transitions. [2020-10-14 23:27:13,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-14 23:27:13,570 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 52 [2020-10-14 23:27:13,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:27:13,573 INFO L225 Difference]: With dead ends: 325 [2020-10-14 23:27:13,575 INFO L226 Difference]: Without dead ends: 322 [2020-10-14 23:27:13,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=287, Invalid=1519, Unknown=0, NotChecked=0, Total=1806 [2020-10-14 23:27:13,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-10-14 23:27:13,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 290. [2020-10-14 23:27:13,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-14 23:27:13,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 349 transitions. [2020-10-14 23:27:13,606 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 349 transitions. Word has length 52 [2020-10-14 23:27:13,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:27:13,607 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 349 transitions. [2020-10-14 23:27:13,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 23:27:13,607 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 349 transitions. [2020-10-14 23:27:13,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-14 23:27:13,610 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:27:13,611 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:27:13,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 23:27:13,611 INFO L427 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:27:13,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:27:13,611 INFO L82 PathProgramCache]: Analyzing trace with hash 354184987, now seen corresponding path program 1 times [2020-10-14 23:27:13,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:27:13,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1527453614] [2020-10-14 23:27:13,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:27:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:13,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:16,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:16,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 23:27:16,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:16,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2519 [2020-10-14 23:27:16,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:16,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:16,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-14 23:27:16,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 23:27:16,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 23:27:16,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:27:16,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:27:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:16,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:16,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:16,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:16,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:16,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 23:27:16,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:16,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:16,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:27:16,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:16,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:27:16,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:27:16,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 23:27:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:16,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:17,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:17,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-14 23:27:17,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:17,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1308 [2020-10-14 23:27:17,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:17,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:17,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 23:27:17,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:17,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 23:27:17,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:17,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:27:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:17,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:17,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:17,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 23:27:17,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:17,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-14 23:27:17,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:17,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:17,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 23:27:17,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:17,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 23:27:18,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:18,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 23:27:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:18,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:18,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:18,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 23:27:18,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:18,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 23:27:18,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:18,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:18,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 23:27:18,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:18,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 23:27:18,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:18,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:27:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:18,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:18,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:18,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:18,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:18,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 23:27:18,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:18,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:18,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:27:18,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:18,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:27:18,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:27:18,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:27:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:18,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:18,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:18,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 23:27:18,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:18,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-14 23:27:18,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:18,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:18,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 23:27:18,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:18,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 23:27:18,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:27:18,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 23:27:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:18,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:18,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:18,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 23:27:18,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:18,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 23:27:18,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:18,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:18,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 23:27:18,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:18,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 23:27:18,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:19,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:27:19,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:19,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:19,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:19,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:19,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:19,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 23:27:19,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:19,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:19,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:27:19,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:19,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:27:19,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:27:19,189 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 23:27:19,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1527453614] [2020-10-14 23:27:19,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:27:19,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-14 23:27:19,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801143482] [2020-10-14 23:27:19,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-14 23:27:19,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:27:19,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-14 23:27:19,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=612, Unknown=0, NotChecked=0, Total=702 [2020-10-14 23:27:19,191 INFO L87 Difference]: Start difference. First operand 290 states and 349 transitions. Second operand 27 states. [2020-10-14 23:27:24,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:27:24,929 INFO L93 Difference]: Finished difference Result 362 states and 434 transitions. [2020-10-14 23:27:24,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-14 23:27:24,935 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 61 [2020-10-14 23:27:24,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:27:24,938 INFO L225 Difference]: With dead ends: 362 [2020-10-14 23:27:24,938 INFO L226 Difference]: Without dead ends: 359 [2020-10-14 23:27:24,941 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=468, Invalid=2838, Unknown=0, NotChecked=0, Total=3306 [2020-10-14 23:27:24,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2020-10-14 23:27:24,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 310. [2020-10-14 23:27:24,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2020-10-14 23:27:24,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 373 transitions. [2020-10-14 23:27:24,972 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 373 transitions. Word has length 61 [2020-10-14 23:27:24,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:27:24,973 INFO L479 AbstractCegarLoop]: Abstraction has 310 states and 373 transitions. [2020-10-14 23:27:24,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-14 23:27:24,973 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 373 transitions. [2020-10-14 23:27:24,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-14 23:27:24,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:27:24,978 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:27:24,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 23:27:24,979 INFO L427 AbstractCegarLoop]: === Iteration 9 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:27:24,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:27:24,979 INFO L82 PathProgramCache]: Analyzing trace with hash -2004966405, now seen corresponding path program 1 times [2020-10-14 23:27:24,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:27:24,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1144395148] [2020-10-14 23:27:24,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:27:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:25,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:25,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:25,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 23:27:25,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:25,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 495 [2020-10-14 23:27:25,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:25,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:25,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 23:27:25,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 23:27:25,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 23:27:25,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:25,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:27:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:25,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:25,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:25,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:25,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:25,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:27:25,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:25,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:25,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:27:25,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:25,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:27:25,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:27:25,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 23:27:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:25,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:25,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:25,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 23:27:25,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:25,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-14 23:27:25,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:25,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:25,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 23:27:25,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:25,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 23:27:25,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:26,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:27:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:26,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:26,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:26,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 23:27:26,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:26,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-14 23:27:26,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:26,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:26,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 23:27:26,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:26,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 23:27:26,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:26,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 23:27:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:26,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:26,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:26,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 23:27:26,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:26,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 23:27:26,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:26,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:26,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 23:27:26,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:26,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 23:27:26,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:26,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:27:26,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:26,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:26,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:26,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:26,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:26,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 23:27:26,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:26,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:26,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:27:26,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:26,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:27:26,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:27:26,786 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 23:27:26,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1144395148] [2020-10-14 23:27:26,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:27:26,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-14 23:27:26,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388752143] [2020-10-14 23:27:26,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 23:27:26,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:27:26,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 23:27:26,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2020-10-14 23:27:26,789 INFO L87 Difference]: Start difference. First operand 310 states and 373 transitions. Second operand 20 states. [2020-10-14 23:27:30,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:27:30,809 INFO L93 Difference]: Finished difference Result 339 states and 406 transitions. [2020-10-14 23:27:30,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-14 23:27:30,815 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 55 [2020-10-14 23:27:30,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:27:30,817 INFO L225 Difference]: With dead ends: 339 [2020-10-14 23:27:30,817 INFO L226 Difference]: Without dead ends: 336 [2020-10-14 23:27:30,819 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=223, Invalid=1337, Unknown=0, NotChecked=0, Total=1560 [2020-10-14 23:27:30,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2020-10-14 23:27:30,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 310. [2020-10-14 23:27:30,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2020-10-14 23:27:30,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 372 transitions. [2020-10-14 23:27:30,855 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 372 transitions. Word has length 55 [2020-10-14 23:27:30,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:27:30,856 INFO L479 AbstractCegarLoop]: Abstraction has 310 states and 372 transitions. [2020-10-14 23:27:30,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-14 23:27:30,856 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 372 transitions. [2020-10-14 23:27:30,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 23:27:30,857 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:27:30,857 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 23:27:30,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 23:27:30,858 INFO L427 AbstractCegarLoop]: === Iteration 10 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:27:30,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:27:30,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1448055677, now seen corresponding path program 1 times [2020-10-14 23:27:30,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:27:30,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741840612] [2020-10-14 23:27:30,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:27:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:30,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:32,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:32,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 23:27:32,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:32,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1567 [2020-10-14 23:27:32,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:32,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:32,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-14 23:27:32,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 23:27:32,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 23:27:32,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:32,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:27:32,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:32,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:32,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:32,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:32,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:32,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:27:32,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:32,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:32,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:27:32,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:32,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:27:32,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:27:32,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 23:27:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:32,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:33,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:33,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-14 23:27:33,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:33,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1049 [2020-10-14 23:27:33,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:33,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:33,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 23:27:33,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:33,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 23:27:33,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:27:33,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:27:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:33,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:33,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:33,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 23:27:33,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:33,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 23:27:33,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:33,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:33,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 23:27:33,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:33,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 23:27:33,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:34,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 23:27:34,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:34,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:34,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:34,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 23:27:34,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:34,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 23:27:34,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:34,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:34,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 23:27:34,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:34,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 23:27:34,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:34,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:27:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:34,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:34,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:34,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:34,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:34,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 23:27:34,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:34,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:34,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:27:34,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:34,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:27:34,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:34,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:27:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:34,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:34,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:34,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 23:27:34,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:34,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-14 23:27:34,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:34,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:34,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 23:27:34,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:34,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 23:27:34,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:34,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 23:27:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:34,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:34,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:34,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 23:27:34,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:34,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 23:27:34,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:34,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:34,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 23:27:34,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:34,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 23:27:34,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:34,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:27:34,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:34,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:34,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:34,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:34,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:34,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 23:27:34,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:34,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:34,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:27:34,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:34,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:27:34,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:34,869 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 23:27:34,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741840612] [2020-10-14 23:27:34,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:27:34,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-14 23:27:34,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583927858] [2020-10-14 23:27:34,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-14 23:27:34,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:27:34,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-14 23:27:34,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=565, Unknown=0, NotChecked=0, Total=650 [2020-10-14 23:27:34,871 INFO L87 Difference]: Start difference. First operand 310 states and 372 transitions. Second operand 26 states. [2020-10-14 23:27:39,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:27:39,257 INFO L93 Difference]: Finished difference Result 434 states and 522 transitions. [2020-10-14 23:27:39,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-14 23:27:39,258 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 64 [2020-10-14 23:27:39,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:27:39,261 INFO L225 Difference]: With dead ends: 434 [2020-10-14 23:27:39,262 INFO L226 Difference]: Without dead ends: 431 [2020-10-14 23:27:39,263 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=397, Invalid=2359, Unknown=0, NotChecked=0, Total=2756 [2020-10-14 23:27:39,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2020-10-14 23:27:39,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 391. [2020-10-14 23:27:39,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2020-10-14 23:27:39,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 474 transitions. [2020-10-14 23:27:39,297 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 474 transitions. Word has length 64 [2020-10-14 23:27:39,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:27:39,298 INFO L479 AbstractCegarLoop]: Abstraction has 391 states and 474 transitions. [2020-10-14 23:27:39,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-14 23:27:39,298 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 474 transitions. [2020-10-14 23:27:39,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-14 23:27:39,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:27:39,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:27:39,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 23:27:39,299 INFO L427 AbstractCegarLoop]: === Iteration 11 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:27:39,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:27:39,300 INFO L82 PathProgramCache]: Analyzing trace with hash -8497533, now seen corresponding path program 1 times [2020-10-14 23:27:39,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:27:39,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [145934610] [2020-10-14 23:27:39,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:27:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 23:27:39,319 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 23:27:39,319 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 23:27:39,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 23:27:39,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:27:39 BoogieIcfgContainer [2020-10-14 23:27:39,337 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 23:27:39,340 INFO L168 Benchmark]: Toolchain (without parser) took 59072.10 ms. Allocated memory was 147.8 MB in the beginning and 807.4 MB in the end (delta: 659.6 MB). Free memory was 101.7 MB in the beginning and 527.3 MB in the end (delta: -425.6 MB). Peak memory consumption was 233.9 MB. Max. memory is 7.1 GB. [2020-10-14 23:27:39,340 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-14 23:27:39,341 INFO L168 Benchmark]: CACSL2BoogieTranslator took 788.15 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 101.7 MB in the beginning and 144.4 MB in the end (delta: -42.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-10-14 23:27:39,342 INFO L168 Benchmark]: Boogie Preprocessor took 107.01 ms. Allocated memory is still 205.0 MB. Free memory was 144.4 MB in the beginning and 139.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-10-14 23:27:39,343 INFO L168 Benchmark]: RCFGBuilder took 947.28 ms. Allocated memory was 205.0 MB in the beginning and 234.4 MB in the end (delta: 29.4 MB). Free memory was 139.7 MB in the beginning and 159.6 MB in the end (delta: -19.9 MB). Peak memory consumption was 50.3 MB. Max. memory is 7.1 GB. [2020-10-14 23:27:39,344 INFO L168 Benchmark]: TraceAbstraction took 57225.21 ms. Allocated memory was 234.4 MB in the beginning and 807.4 MB in the end (delta: 573.0 MB). Free memory was 158.0 MB in the beginning and 527.3 MB in the end (delta: -369.3 MB). Peak memory consumption was 203.8 MB. Max. memory is 7.1 GB. [2020-10-14 23:27:39,347 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 788.15 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 101.7 MB in the beginning and 144.4 MB in the end (delta: -42.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.01 ms. Allocated memory is still 205.0 MB. Free memory was 144.4 MB in the beginning and 139.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 947.28 ms. Allocated memory was 205.0 MB in the beginning and 234.4 MB in the end (delta: 29.4 MB). Free memory was 139.7 MB in the beginning and 159.6 MB in the end (delta: -19.9 MB). Peak memory consumption was 50.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 57225.21 ms. Allocated memory was 234.4 MB in the beginning and 807.4 MB in the end (delta: 573.0 MB). Free memory was 158.0 MB in the beginning and 527.3 MB in the end (delta: -369.3 MB). Peak memory consumption was 203.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 829]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L839] struct list_head gl_list = { &(gl_list), &(gl_list) }; [L938] CALL gl_read() [L898] CALL gl_insert(__VERIFIER_nondet_int()) [L888] struct node *node = malloc(sizeof *node); [L889] COND FALSE !(!node) [L891] node->value = value [L892] CALL list_add(&node->linkage, &gl_list) [L879] EXPR head->next [L879] CALL __list_add(new, head, head->next) [L867] next->prev = new [L868] new->next = next [L869] new->prev = prev [L870] prev->next = new [L879] RET __list_add(new, head, head->next) [L892] RET list_add(&node->linkage, &gl_list) [L893] (&node->nested)->next = (&node->nested) [L893] (&node->nested)->next = (&node->nested) [L898] RET gl_insert(__VERIFIER_nondet_int()) [L900] COND FALSE !(__VERIFIER_nondet_int()) [L938] RET gl_read() [L939] CALL inspect(&gl_list) [L842] COND FALSE !(!(head)) [L843] EXPR head->next [L843] COND FALSE !(!(head->next != head)) [L844] EXPR head->prev [L844] COND FALSE !(!(head->prev != head)) [L845] EXPR head->prev [L845] head = head->prev [L846] COND FALSE !(!(head)) [L847] EXPR head->next [L847] COND FALSE !(!(head->next != head)) [L848] EXPR head->prev [L848] COND FALSE !(!(head->prev != head)) [L849] const struct node *node = ((struct node *)((char *)(head)-(unsigned long)(&((struct node *)0)->linkage))); [L850] COND FALSE !(!(node)) [L851] EXPR node->nested.next [L851] COND FALSE !(!(node->nested.next == &node->nested)) [L852] EXPR node->nested.prev [L852] COND TRUE !(node->nested.prev == &node->nested) [L852] CALL fail() [L829] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 17 procedures, 151 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 57.1s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 33.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1020 SDtfs, 7805 SDslu, 1528 SDs, 0 SdLazy, 18836 SolverSat, 2875 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 430 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 368 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2535 ImplicationChecksByTransitivity, 15.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=391occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 316 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 23.0s InterpolantComputationTime, 519 NumberOfCodeBlocks, 519 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 451 ConstructedInterpolants, 0 QuantifiedInterpolants, 616422 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 6/42 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 incorrect! Received shutdown request...