/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/rule60_list2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:58:01,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:58:01,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:58:01,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:58:01,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:58:01,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:58:01,267 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:58:01,269 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:58:01,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:58:01,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:58:01,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:58:01,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:58:01,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:58:01,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:58:01,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:58:01,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:58:01,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:58:01,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:58:01,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:58:01,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:58:01,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:58:01,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:58:01,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:58:01,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:58:01,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:58:01,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:58:01,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:58:01,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:58:01,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:58:01,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:58:01,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:58:01,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:58:01,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:58:01,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:58:01,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:58:01,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:58:01,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:58:01,298 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:58:01,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:58:01,299 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:58:01,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:58:01,301 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 08:58:01,326 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:58:01,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:58:01,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:58:01,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:58:01,328 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:58:01,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:58:01,329 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:58:01,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:58:01,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:58:01,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:58:01,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:58:01,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:58:01,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:58:01,330 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:58:01,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:58:01,330 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:58:01,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:58:01,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:58:01,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:58:01,331 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:58:01,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:58:01,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:58:01,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:58:01,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:58:01,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:58:01,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:58:01,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:58:01,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:58:01,333 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:58:01,333 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:58:01,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:58:01,826 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:58:01,833 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:58:01,835 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:58:01,835 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:58:01,836 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-09-25 08:58:01,925 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51b3d6c5e/eaeb9da79adb4ca8a8e86e81f029e6f7/FLAGe8a10b436 [2020-09-25 08:58:02,508 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:58:02,509 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-09-25 08:58:02,528 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51b3d6c5e/eaeb9da79adb4ca8a8e86e81f029e6f7/FLAGe8a10b436 [2020-09-25 08:58:02,775 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51b3d6c5e/eaeb9da79adb4ca8a8e86e81f029e6f7 [2020-09-25 08:58:02,789 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:58:02,796 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:58:02,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:58:02,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:58:02,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:58:02,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:58:02" (1/1) ... [2020-09-25 08:58:02,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@600e250b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:02, skipping insertion in model container [2020-09-25 08:58:02,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:58:02" (1/1) ... [2020-09-25 08:58:02,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:58:02,869 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:58:03,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:58:03,239 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:58:03,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:58:03,493 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:58:03,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:03 WrapperNode [2020-09-25 08:58:03,495 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:58:03,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:58:03,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:58:03,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:58:03,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:03" (1/1) ... [2020-09-25 08:58:03,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:03" (1/1) ... [2020-09-25 08:58:03,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:03" (1/1) ... [2020-09-25 08:58:03,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:03" (1/1) ... [2020-09-25 08:58:03,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:03" (1/1) ... [2020-09-25 08:58:03,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:03" (1/1) ... [2020-09-25 08:58:03,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:03" (1/1) ... [2020-09-25 08:58:03,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:58:03,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:58:03,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:58:03,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:58:03,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:03" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:58:03,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:58:03,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:58:03,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-25 08:58:03,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2020-09-25 08:58:03,715 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2020-09-25 08:58:03,715 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-09-25 08:58:03,715 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-09-25 08:58:03,716 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:58:03,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:58:03,716 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-25 08:58:03,717 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-09-25 08:58:03,717 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-09-25 08:58:03,717 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-09-25 08:58:03,717 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-09-25 08:58:03,717 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-09-25 08:58:03,718 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-09-25 08:58:03,719 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-09-25 08:58:03,719 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-09-25 08:58:03,719 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-09-25 08:58:03,719 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-09-25 08:58:03,720 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-09-25 08:58:03,720 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-09-25 08:58:03,721 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-09-25 08:58:03,721 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-09-25 08:58:03,722 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-09-25 08:58:03,722 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-09-25 08:58:03,722 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-09-25 08:58:03,722 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-09-25 08:58:03,722 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-09-25 08:58:03,722 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-09-25 08:58:03,722 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-09-25 08:58:03,723 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-09-25 08:58:03,723 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-09-25 08:58:03,723 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-09-25 08:58:03,723 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-09-25 08:58:03,723 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-09-25 08:58:03,723 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-09-25 08:58:03,723 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-09-25 08:58:03,724 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-09-25 08:58:03,724 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-09-25 08:58:03,724 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-09-25 08:58:03,724 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-09-25 08:58:03,724 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-09-25 08:58:03,724 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-09-25 08:58:03,724 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-09-25 08:58:03,725 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-09-25 08:58:03,725 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-09-25 08:58:03,725 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-09-25 08:58:03,725 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:58:03,725 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-09-25 08:58:03,727 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-09-25 08:58:03,727 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-09-25 08:58:03,727 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-09-25 08:58:03,727 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-09-25 08:58:03,728 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-09-25 08:58:03,728 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-09-25 08:58:03,728 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-09-25 08:58:03,728 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-09-25 08:58:03,728 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-09-25 08:58:03,728 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-09-25 08:58:03,728 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-09-25 08:58:03,729 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-09-25 08:58:03,729 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-09-25 08:58:03,729 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-09-25 08:58:03,729 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-09-25 08:58:03,729 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-09-25 08:58:03,730 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-09-25 08:58:03,730 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-09-25 08:58:03,730 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-09-25 08:58:03,731 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-09-25 08:58:03,731 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-09-25 08:58:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-09-25 08:58:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-09-25 08:58:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-09-25 08:58:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-09-25 08:58:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-09-25 08:58:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-09-25 08:58:03,734 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-09-25 08:58:03,734 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-09-25 08:58:03,734 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-09-25 08:58:03,734 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-09-25 08:58:03,734 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-09-25 08:58:03,735 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-09-25 08:58:03,735 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-09-25 08:58:03,736 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-09-25 08:58:03,736 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-09-25 08:58:03,736 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-09-25 08:58:03,736 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-09-25 08:58:03,737 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-09-25 08:58:03,737 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-09-25 08:58:03,738 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-09-25 08:58:03,738 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-09-25 08:58:03,738 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-09-25 08:58:03,738 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-09-25 08:58:03,738 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-09-25 08:58:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-09-25 08:58:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-09-25 08:58:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-09-25 08:58:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-09-25 08:58:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-09-25 08:58:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-09-25 08:58:03,740 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-09-25 08:58:03,740 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-09-25 08:58:03,740 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-09-25 08:58:03,740 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-09-25 08:58:03,740 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-09-25 08:58:03,740 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-09-25 08:58:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-09-25 08:58:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-09-25 08:58:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-09-25 08:58:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-09-25 08:58:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:58:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 08:58:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 08:58:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:58:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 08:58:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-09-25 08:58:03,743 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 08:58:03,743 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-09-25 08:58:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-09-25 08:58:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-09-25 08:58:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-09-25 08:58:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-09-25 08:58:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-09-25 08:58:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-09-25 08:58:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-09-25 08:58:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-09-25 08:58:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-09-25 08:58:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-09-25 08:58:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:58:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2020-09-25 08:58:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2020-09-25 08:58:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-09-25 08:58:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-09-25 08:58:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:58:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:58:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:58:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 08:58:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:58:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:58:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:58:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:58:04,330 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:58:04,331 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 08:58:04,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:58:04 BoogieIcfgContainer [2020-09-25 08:58:04,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:58:04,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:58:04,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:58:04,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:58:04,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:58:02" (1/3) ... [2020-09-25 08:58:04,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c4b4ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:58:04, skipping insertion in model container [2020-09-25 08:58:04,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:03" (2/3) ... [2020-09-25 08:58:04,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c4b4ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:58:04, skipping insertion in model container [2020-09-25 08:58:04,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:58:04" (3/3) ... [2020-09-25 08:58:04,344 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.i [2020-09-25 08:58:04,355 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:58:04,366 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:58:04,386 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:58:04,412 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:58:04,412 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:58:04,412 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:58:04,412 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:58:04,412 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:58:04,412 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:58:04,412 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:58:04,412 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:58:04,434 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2020-09-25 08:58:04,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-25 08:58:04,441 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:58:04,442 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] [2020-09-25 08:58:04,443 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:58:04,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:58:04,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1653885127, now seen corresponding path program 1 times [2020-09-25 08:58:04,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:58:04,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1447802261] [2020-09-25 08:58:04,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:58:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:04,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:04,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:04,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 08:58:04,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:04,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 376 [2020-09-25 08:58:05,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:05,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:05,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:58:05,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 08:58:05,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:58:05,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 23 [2020-09-25 08:58:05,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:58:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:05,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:05,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:05,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 08:58:05,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:05,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 08:58:05,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:05,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:05,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:05,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:05,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:05,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:05,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:58:05,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1447802261] [2020-09-25 08:58:05,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:58:05,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:58:05,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622661234] [2020-09-25 08:58:05,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:58:05,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:58:05,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:58:05,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:58:05,257 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 7 states. [2020-09-25 08:58:05,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:58:05,682 INFO L93 Difference]: Finished difference Result 126 states and 151 transitions. [2020-09-25 08:58:05,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 08:58:05,684 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-09-25 08:58:05,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:58:05,699 INFO L225 Difference]: With dead ends: 126 [2020-09-25 08:58:05,699 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 08:58:05,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-09-25 08:58:05,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 08:58:05,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2020-09-25 08:58:05,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-25 08:58:05,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2020-09-25 08:58:05,760 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 21 [2020-09-25 08:58:05,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:58:05,761 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2020-09-25 08:58:05,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:58:05,761 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2020-09-25 08:58:05,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 08:58:05,765 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:58:05,765 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:58:05,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:58:05,766 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:58:05,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:58:05,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1154270079, now seen corresponding path program 1 times [2020-09-25 08:58:05,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:58:05,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [823970711] [2020-09-25 08:58:05,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:58:05,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:05,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:05,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:06,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:09,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:09,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 08:58:09,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:58:09,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4156 [2020-09-25 08:58:09,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:09,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:09,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 08:58:09,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 08:58:09,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 08:58:09,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-09-25 08:58:10,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:58:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:10,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:10,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:10,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 08:58:10,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:10,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 08:58:10,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:10,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:10,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:58:10,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:10,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:58:10,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:10,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 08:58:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:10,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:10,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:10,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:10,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:10,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 08:58:10,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:10,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:10,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:58:10,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:10,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:58:10,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:10,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:10,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:10,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:10,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:10,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:10,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:58:10,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:10,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:10,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:10,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:10,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:10,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:10,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:58:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:10,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:10,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:10,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:10,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:10,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 08:58:10,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:10,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:10,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:58:10,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:10,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:58:10,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:10,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:10,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:10,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:10,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:10,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:10,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 08:58:10,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:10,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:10,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:10,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:10,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:10,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:10,475 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 08:58:10,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [823970711] [2020-09-25 08:58:10,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:58:10,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 08:58:10,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578405711] [2020-09-25 08:58:10,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:58:10,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:58:10,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:58:10,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:58:10,479 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand 8 states. [2020-09-25 08:58:11,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:58:11,066 INFO L93 Difference]: Finished difference Result 101 states and 110 transitions. [2020-09-25 08:58:11,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 08:58:11,067 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-09-25 08:58:11,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:58:11,069 INFO L225 Difference]: With dead ends: 101 [2020-09-25 08:58:11,070 INFO L226 Difference]: Without dead ends: 88 [2020-09-25 08:58:11,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 08:58:11,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-25 08:58:11,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 81. [2020-09-25 08:58:11,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-25 08:58:11,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2020-09-25 08:58:11,087 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 61 [2020-09-25 08:58:11,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:58:11,089 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2020-09-25 08:58:11,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:58:11,090 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-09-25 08:58:11,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 08:58:11,092 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:58:11,092 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:58:11,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:58:11,093 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:58:11,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:58:11,094 INFO L82 PathProgramCache]: Analyzing trace with hash -497938342, now seen corresponding path program 1 times [2020-09-25 08:58:11,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:58:11,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [355628365] [2020-09-25 08:58:11,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:58:11,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:11,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:11,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:11,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:12,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:16,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:16,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 08:58:16,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:58:16,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 08:58:16,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:16,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:16,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 08:58:16,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 08:58:16,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 08:58:16,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:16,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:58:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:16,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:16,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:16,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 08:58:16,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:16,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 08:58:16,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:16,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:16,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:58:16,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:16,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:58:16,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:16,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 08:58:16,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:16,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:16,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:16,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:16,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:16,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 08:58:16,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:16,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:16,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:58:16,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:16,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:58:16,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:16,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:16,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:16,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:16,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:16,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:16,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:58:16,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:16,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:16,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:16,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:16,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:16,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:16,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:58:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:16,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:16,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:16,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:16,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:16,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 08:58:16,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:16,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:16,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:58:16,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:16,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:58:16,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:16,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:16,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:16,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:16,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:16,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:16,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:58:16,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:16,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:16,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:16,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:16,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:16,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:16,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 08:58:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:16,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:16,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:16,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 08:58:16,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:16,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 08:58:16,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:16,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:16,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:58:16,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 08:58:16,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 08:58:16,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:16,473 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 08:58:16,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [355628365] [2020-09-25 08:58:16,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:58:16,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 08:58:16,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837270105] [2020-09-25 08:58:16,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:58:16,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:58:16,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:58:16,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:58:16,476 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand 9 states. [2020-09-25 08:58:17,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:58:17,086 INFO L93 Difference]: Finished difference Result 96 states and 103 transitions. [2020-09-25 08:58:17,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 08:58:17,088 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-09-25 08:58:17,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:58:17,090 INFO L225 Difference]: With dead ends: 96 [2020-09-25 08:58:17,091 INFO L226 Difference]: Without dead ends: 91 [2020-09-25 08:58:17,092 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-09-25 08:58:17,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-25 08:58:17,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 84. [2020-09-25 08:58:17,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-09-25 08:58:17,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 91 transitions. [2020-09-25 08:58:17,120 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 91 transitions. Word has length 70 [2020-09-25 08:58:17,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:58:17,122 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 91 transitions. [2020-09-25 08:58:17,122 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:58:17,122 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 91 transitions. [2020-09-25 08:58:17,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 08:58:17,125 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:58:17,128 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:58:17,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:58:17,128 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:58:17,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:58:17,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1150537932, now seen corresponding path program 1 times [2020-09-25 08:58:17,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:58:17,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1336070485] [2020-09-25 08:58:17,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:58:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:17,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:17,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:17,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:18,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:20,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:20,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 08:58:20,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:58:20,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3706 [2020-09-25 08:58:20,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:20,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:20,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:58:20,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 08:58:20,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 08:58:20,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:20,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:58:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:20,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:20,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:20,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 08:58:20,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:20,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 08:58:20,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:20,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:20,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:20,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:20,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:20,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:20,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 08:58:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:20,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:21,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:21,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:21,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:21,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 08:58:21,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:21,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:21,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:58:21,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:21,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 08:58:21,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:21,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:21,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:21,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:21,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:21,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:21,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 08:58:21,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:21,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:21,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:58:21,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:21,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 08:58:21,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:21,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:58:21,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:21,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:21,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:21,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:21,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:21,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 08:58:21,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:21,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:21,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:58:21,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:21,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:58:21,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:21,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:21,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:21,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:21,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:21,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:21,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:21,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:58:21,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:21,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:21,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:21,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:21,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:21,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:21,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 08:58:21,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:21,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:21,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:21,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:58:21,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:21,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:58:21,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:21,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:21,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:21,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 08:58:21,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:21,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:21,206 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 08:58:21,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1336070485] [2020-09-25 08:58:21,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:58:21,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 08:58:21,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391762155] [2020-09-25 08:58:21,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:58:21,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:58:21,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:58:21,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:58:21,210 INFO L87 Difference]: Start difference. First operand 84 states and 91 transitions. Second operand 10 states. [2020-09-25 08:58:21,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:58:21,693 INFO L93 Difference]: Finished difference Result 140 states and 155 transitions. [2020-09-25 08:58:21,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 08:58:21,693 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-09-25 08:58:21,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:58:21,695 INFO L225 Difference]: With dead ends: 140 [2020-09-25 08:58:21,695 INFO L226 Difference]: Without dead ends: 90 [2020-09-25 08:58:21,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2020-09-25 08:58:21,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-09-25 08:58:21,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-09-25 08:58:21,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-09-25 08:58:21,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 97 transitions. [2020-09-25 08:58:21,708 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 97 transitions. Word has length 71 [2020-09-25 08:58:21,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:58:21,708 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 97 transitions. [2020-09-25 08:58:21,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 08:58:21,708 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 97 transitions. [2020-09-25 08:58:21,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 08:58:21,710 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:58:21,710 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:58:21,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:58:21,710 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:58:21,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:58:21,711 INFO L82 PathProgramCache]: Analyzing trace with hash -173985679, now seen corresponding path program 1 times [2020-09-25 08:58:21,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:58:21,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [475776523] [2020-09-25 08:58:21,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:58:21,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:21,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:21,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:22,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:24,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:24,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 08:58:24,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:58:24,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2324 [2020-09-25 08:58:24,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:24,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:24,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:58:24,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-25 08:58:24,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 08:58:24,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:24,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:58:24,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:24,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:24,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:24,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 08:58:24,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:24,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 08:58:24,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:24,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:24,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:24,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:24,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:24,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:24,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 08:58:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:24,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:24,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:24,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:24,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:24,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:58:24,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:24,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:24,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:24,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:24,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:24,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:24,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:24,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:24,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:24,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:24,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:24,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:24,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:58:24,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:24,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:24,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:24,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:24,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:24,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:24,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:58:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:24,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:24,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:24,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:24,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:24,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 08:58:24,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:24,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:24,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:58:24,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:24,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 08:58:24,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:24,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:24,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:24,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:24,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:24,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:24,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:24,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 08:58:24,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:24,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:24,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:58:24,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:24,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 08:58:24,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:24,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 08:58:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:24,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:24,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:24,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:58:24,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:24,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:58:24,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:24,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:24,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:24,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 08:58:24,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:24,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:24,329 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 08:58:24,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [475776523] [2020-09-25 08:58:24,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:58:24,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 08:58:24,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306441755] [2020-09-25 08:58:24,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:58:24,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:58:24,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:58:24,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:58:24,332 INFO L87 Difference]: Start difference. First operand 90 states and 97 transitions. Second operand 10 states. [2020-09-25 08:58:24,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:58:24,794 INFO L93 Difference]: Finished difference Result 137 states and 149 transitions. [2020-09-25 08:58:24,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 08:58:24,794 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-09-25 08:58:24,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:58:24,798 INFO L225 Difference]: With dead ends: 137 [2020-09-25 08:58:24,798 INFO L226 Difference]: Without dead ends: 82 [2020-09-25 08:58:24,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2020-09-25 08:58:24,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-09-25 08:58:24,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-09-25 08:58:24,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-09-25 08:58:24,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2020-09-25 08:58:24,813 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 71 [2020-09-25 08:58:24,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:58:24,813 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2020-09-25 08:58:24,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 08:58:24,813 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2020-09-25 08:58:24,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 08:58:24,815 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:58:24,815 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:58:24,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:58:24,815 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:58:24,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:58:24,816 INFO L82 PathProgramCache]: Analyzing trace with hash 2039706158, now seen corresponding path program 1 times [2020-09-25 08:58:24,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:58:24,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1551596725] [2020-09-25 08:58:24,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:58:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:24,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:25,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:25,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 08:58:25,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:25,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 788 [2020-09-25 08:58:25,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:25,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:25,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 08:58:25,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 08:58:25,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 08:58:25,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:25,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:58:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:25,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:25,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:25,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 08:58:25,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:25,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:58:25,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:25,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:25,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:25,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:25,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:25,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:25,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 08:58:25,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:25,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:25,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:25,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:25,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:25,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 08:58:25,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:25,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:25,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:58:25,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:25,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 08:58:25,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:25,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:25,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:25,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:25,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:25,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:25,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:25,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 08:58:25,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:25,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:25,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:58:25,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:25,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 08:58:25,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:25,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:58:25,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:25,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:25,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:25,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:25,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:25,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 08:58:25,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:25,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:25,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 08:58:25,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 08:58:25,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 08:58:25,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:26,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:26,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:26,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:26,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:26,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:26,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:26,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 08:58:26,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:26,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:26,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:58:26,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 08:58:26,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 08:58:26,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:26,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 08:58:26,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:26,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:26,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:26,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:58:26,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:26,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 08:58:26,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:26,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:26,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:58:26,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:26,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 08:58:26,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:26,310 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 08:58:26,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1551596725] [2020-09-25 08:58:26,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:58:26,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 08:58:26,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956790522] [2020-09-25 08:58:26,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 08:58:26,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:58:26,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 08:58:26,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2020-09-25 08:58:26,312 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand 23 states. [2020-09-25 08:58:27,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:58:27,767 INFO L93 Difference]: Finished difference Result 97 states and 105 transitions. [2020-09-25 08:58:27,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 08:58:27,768 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 71 [2020-09-25 08:58:27,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:58:27,770 INFO L225 Difference]: With dead ends: 97 [2020-09-25 08:58:27,770 INFO L226 Difference]: Without dead ends: 89 [2020-09-25 08:58:27,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=188, Invalid=1618, Unknown=0, NotChecked=0, Total=1806 [2020-09-25 08:58:27,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-09-25 08:58:27,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2020-09-25 08:58:27,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-09-25 08:58:27,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2020-09-25 08:58:27,781 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 71 [2020-09-25 08:58:27,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:58:27,782 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2020-09-25 08:58:27,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 08:58:27,782 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2020-09-25 08:58:27,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 08:58:27,783 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:58:27,784 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:58:27,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 08:58:27,784 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:58:27,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:58:27,784 INFO L82 PathProgramCache]: Analyzing trace with hash 2033290459, now seen corresponding path program 1 times [2020-09-25 08:58:27,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:58:27,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [706479332] [2020-09-25 08:58:27,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:58:27,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:27,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:28,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:30,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:30,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 08:58:30,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:58:30,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2454 [2020-09-25 08:58:30,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:30,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:30,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:58:30,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-09-25 08:58:30,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 08:58:30,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:30,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:58:30,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:30,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:30,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:30,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 08:58:30,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:30,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:58:30,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:30,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:30,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:30,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:30,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:30,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:30,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 08:58:30,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:30,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:30,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:30,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:30,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:30,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:58:30,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:30,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:30,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:30,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:30,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:30,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:30,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:30,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:30,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:30,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:30,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:30,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:58:30,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:30,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:30,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:30,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:30,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:30,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:30,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:58:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:30,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:30,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:30,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:30,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:30,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:58:30,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:30,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:30,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:30,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:30,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:30,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:30,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:30,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:30,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:30,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:30,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:30,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:58:30,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:30,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:30,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:30,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:30,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:30,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:30,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 08:58:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:30,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:30,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:30,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 08:58:30,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:30,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:58:30,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:30,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:30,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:30,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:30,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:30,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:30,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 08:58:30,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:30,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:30,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:30,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:58:30,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:30,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:58:30,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:30,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:30,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:30,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:30,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:30,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:30,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 08:58:30,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:30,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:30,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:30,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:58:30,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:30,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 08:58:30,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:30,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:30,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:58:30,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:30,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:58:30,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:30,506 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-25 08:58:30,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [706479332] [2020-09-25 08:58:30,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:58:30,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 08:58:30,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592082825] [2020-09-25 08:58:30,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:58:30,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:58:30,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:58:30,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:58:30,508 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 10 states. [2020-09-25 08:58:31,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:58:31,015 INFO L93 Difference]: Finished difference Result 88 states and 92 transitions. [2020-09-25 08:58:31,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 08:58:31,016 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-09-25 08:58:31,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:58:31,017 INFO L225 Difference]: With dead ends: 88 [2020-09-25 08:58:31,017 INFO L226 Difference]: Without dead ends: 79 [2020-09-25 08:58:31,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2020-09-25 08:58:31,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-25 08:58:31,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-09-25 08:58:31,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-09-25 08:58:31,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 83 transitions. [2020-09-25 08:58:31,026 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 83 transitions. Word has length 85 [2020-09-25 08:58:31,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:58:31,026 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 83 transitions. [2020-09-25 08:58:31,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 08:58:31,027 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 83 transitions. [2020-09-25 08:58:31,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 08:58:31,028 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:58:31,029 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:58:31,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 08:58:31,029 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:58:31,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:58:31,029 INFO L82 PathProgramCache]: Analyzing trace with hash 578402155, now seen corresponding path program 1 times [2020-09-25 08:58:31,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:58:31,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1622900015] [2020-09-25 08:58:31,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:58:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:31,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:31,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:31,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:34,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:34,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:36,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:36,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 08:58:36,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:58:36,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 08:58:36,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:36,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:36,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 08:58:36,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 08:58:36,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 08:58:36,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:36,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:58:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:36,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:36,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:36,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 08:58:36,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:36,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 08:58:36,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:36,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:36,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:58:36,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:36,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:58:36,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:36,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 08:58:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:36,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:36,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:36,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:36,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:36,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 08:58:36,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:36,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:36,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:58:36,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:36,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:58:36,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:36,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:36,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:36,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:36,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:36,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:36,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:36,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:58:36,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:36,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:36,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:36,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:36,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:36,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:36,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:58:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:36,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:36,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:36,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:36,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:36,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 08:58:36,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:36,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:36,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:58:36,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:36,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:58:36,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:36,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:36,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:36,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:36,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:36,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:36,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:36,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:58:36,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:36,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:36,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:36,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:36,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:36,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:36,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 08:58:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:36,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:36,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:36,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 08:58:36,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:36,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 08:58:36,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:36,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:36,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:58:36,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 08:58:36,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 08:58:36,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:36,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 08:58:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:36,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:36,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:36,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:58:36,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:36,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 08:58:36,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:36,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:36,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:58:36,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:36,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:58:36,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:36,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 08:58:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:36,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:36,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:36,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:58:36,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:36,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 08:58:36,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:36,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:36,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:58:36,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:36,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:58:36,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:36,512 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-25 08:58:36,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1622900015] [2020-09-25 08:58:36,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:58:36,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 08:58:36,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440262513] [2020-09-25 08:58:36,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 08:58:36,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:58:36,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 08:58:36,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-25 08:58:36,517 INFO L87 Difference]: Start difference. First operand 79 states and 83 transitions. Second operand 12 states. [2020-09-25 08:58:37,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:58:37,395 INFO L93 Difference]: Finished difference Result 81 states and 85 transitions. [2020-09-25 08:58:37,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 08:58:37,396 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 86 [2020-09-25 08:58:37,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:58:37,396 INFO L225 Difference]: With dead ends: 81 [2020-09-25 08:58:37,396 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 08:58:37,397 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2020-09-25 08:58:37,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 08:58:37,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 08:58:37,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 08:58:37,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 08:58:37,398 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 86 [2020-09-25 08:58:37,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:58:37,399 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 08:58:37,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 08:58:37,399 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 08:58:37,399 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 08:58:37,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 08:58:37,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 08:58:38,479 INFO L268 CegarLoopResult]: For program point my_mallocFINAL(lines 878 880) no Hoare annotation was computed. [2020-09-25 08:58:38,480 INFO L264 CegarLoopResult]: At program point L879(line 879) the Hoare annotation is: (or (not (= ~elem~0.base ~elem~0.offset)) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= my_malloc_~size 8)) (not (= |my_malloc_#in~size| 8)) (not (= ~elem~0.offset 0))) [2020-09-25 08:58:38,480 INFO L268 CegarLoopResult]: For program point L879-1(line 879) no Hoare annotation was computed. [2020-09-25 08:58:38,480 INFO L268 CegarLoopResult]: For program point L879-2(line 879) no Hoare annotation was computed. [2020-09-25 08:58:38,480 INFO L264 CegarLoopResult]: At program point my_mallocENTRY(lines 878 880) the Hoare annotation is: (or (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|)) (not (= ~elem~0.base ~elem~0.offset)) (not (= |my_malloc_#in~size| 8)) (not (= ~elem~0.offset 0))) [2020-09-25 08:58:38,481 INFO L268 CegarLoopResult]: For program point my_mallocEXIT(lines 878 880) no Hoare annotation was computed. [2020-09-25 08:58:38,481 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 08:58:38,481 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 08:58:38,481 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line 900) no Hoare annotation was computed. [2020-09-25 08:58:38,481 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= |~#head~0.base| |old(~#head~0.base)|) (= |old(#length)| |#length|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= |~#head~0.offset| |old(~#head~0.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= ~elem~0.offset |old(~elem~0.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~elem~0.base |old(~elem~0.base)|) (= |old(#valid)| |#valid|)) [2020-09-25 08:58:38,481 INFO L268 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-09-25 08:58:38,481 INFO L268 CegarLoopResult]: For program point L900(line 900) no Hoare annotation was computed. [2020-09-25 08:58:38,482 INFO L268 CegarLoopResult]: For program point L867(line 867) no Hoare annotation was computed. [2020-09-25 08:58:38,482 INFO L268 CegarLoopResult]: For program point L900-1(line 900) no Hoare annotation was computed. [2020-09-25 08:58:38,482 INFO L268 CegarLoopResult]: For program point L900-2(line 900) no Hoare annotation was computed. [2020-09-25 08:58:38,482 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 08:58:38,482 INFO L268 CegarLoopResult]: For program point L897(line 897) no Hoare annotation was computed. [2020-09-25 08:58:38,482 INFO L268 CegarLoopResult]: For program point L896(lines 896 897) no Hoare annotation was computed. [2020-09-25 08:58:38,482 INFO L268 CegarLoopResult]: For program point L896-2(lines 895 898) no Hoare annotation was computed. [2020-09-25 08:58:38,482 INFO L268 CegarLoopResult]: For program point list_delEXIT(lines 895 898) no Hoare annotation was computed. [2020-09-25 08:58:38,483 INFO L264 CegarLoopResult]: At program point list_delENTRY(lines 895 898) the Hoare annotation is: (and (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset)) [2020-09-25 08:58:38,483 INFO L264 CegarLoopResult]: At program point list_addENTRY(lines 889 893) the Hoare annotation is: (or (and (= |old(~elem~0.base)| |list_add_#in~new.base|) (= |old(~elem~0.offset)| |list_add_#in~new.offset|)) (and (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset))) [2020-09-25 08:58:38,483 INFO L268 CegarLoopResult]: For program point L892(line 892) no Hoare annotation was computed. [2020-09-25 08:58:38,483 INFO L268 CegarLoopResult]: For program point L891(lines 891 892) no Hoare annotation was computed. [2020-09-25 08:58:38,483 INFO L268 CegarLoopResult]: For program point L890(line 890) no Hoare annotation was computed. [2020-09-25 08:58:38,483 INFO L268 CegarLoopResult]: For program point L891-1(line 891) no Hoare annotation was computed. [2020-09-25 08:58:38,483 INFO L268 CegarLoopResult]: For program point L889(lines 889 893) no Hoare annotation was computed. [2020-09-25 08:58:38,483 INFO L264 CegarLoopResult]: At program point L890-2(line 890) the Hoare annotation is: (and (= |old(~elem~0.base)| |list_add_#in~new.base|) (= |old(~elem~0.offset)| |list_add_#in~new.offset|)) [2020-09-25 08:58:38,484 INFO L268 CegarLoopResult]: For program point L891-3(line 891) no Hoare annotation was computed. [2020-09-25 08:58:38,484 INFO L268 CegarLoopResult]: For program point L890-3(line 890) no Hoare annotation was computed. [2020-09-25 08:58:38,484 INFO L268 CegarLoopResult]: For program point L891-4(lines 889 893) no Hoare annotation was computed. [2020-09-25 08:58:38,484 INFO L268 CegarLoopResult]: For program point list_addEXIT(lines 889 893) no Hoare annotation was computed. [2020-09-25 08:58:38,484 INFO L268 CegarLoopResult]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2020-09-25 08:58:38,484 INFO L268 CegarLoopResult]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed. [2020-09-25 08:58:38,484 INFO L268 CegarLoopResult]: For program point __blast_assertFINAL(lines 4 7) no Hoare annotation was computed. [2020-09-25 08:58:38,484 INFO L271 CegarLoopResult]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2020-09-25 08:58:38,484 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 08:58:38,484 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~elem~0.offset 0) (= ~elem~0.base 0)) [2020-09-25 08:58:38,485 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 08:58:38,485 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 08:58:38,485 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 902 917) the Hoare annotation is: (or (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= ~elem~0.offset 0) (= |old(~elem~0.base)| ~elem~0.base)) (not (= |old(~elem~0.offset)| 0))) [2020-09-25 08:58:38,485 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 902 917) no Hoare annotation was computed. [2020-09-25 08:58:38,485 INFO L264 CegarLoopResult]: At program point L909(line 909) the Hoare annotation is: (or (and (not (= main_~dev2~0.offset main_~dev1~0.offset)) (or (not (= main_~dev2~0.base ~elem~0.base)) (not (= main_~dev2~0.offset ~elem~0.offset)))) (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (not (= |old(~elem~0.offset)| 0)) (and (<= ~elem~0.base 0) (<= 0 ~elem~0.base) (or (<= (+ main_~dev2~0.offset 1) 0) (< 0 main_~dev2~0.base) (< 0 main_~dev2~0.offset) (<= (+ main_~dev2~0.base 1) 0)) (= ~elem~0.base ~elem~0.offset))) [2020-09-25 08:58:38,485 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 902 917) no Hoare annotation was computed. [2020-09-25 08:58:38,485 INFO L264 CegarLoopResult]: At program point L908(line 908) the Hoare annotation is: (or (and (not (= main_~dev2~0.offset main_~dev1~0.offset)) (or (not (= main_~dev2~0.offset 0)) (not (= main_~dev2~0.base 0)))) (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (not (= |old(~elem~0.offset)| 0)) (and (<= ~elem~0.base 0) (<= 0 ~elem~0.base) (or (<= (+ main_~dev2~0.offset 1) 0) (< 0 main_~dev2~0.base) (< 0 main_~dev2~0.offset) (<= (+ main_~dev2~0.base 1) 0)) (= ~elem~0.base ~elem~0.offset))) [2020-09-25 08:58:38,486 INFO L264 CegarLoopResult]: At program point L907(line 907) the Hoare annotation is: (or (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (not (= |old(~elem~0.offset)| 0)) (and (not (= main_~dev2~0.offset main_~dev1~0.offset)) (or (<= (+ main_~dev2~0.offset 1) 0) (< 0 main_~dev2~0.base) (< 0 main_~dev2~0.offset) (<= (+ main_~dev2~0.base 1) 0)) (= ~elem~0.offset 0) (or (not (= ~elem~0.base main_~dev1~0.base)) (not (= main_~dev1~0.offset ~elem~0.offset))) (= |old(~elem~0.base)| ~elem~0.base))) [2020-09-25 08:58:38,486 INFO L268 CegarLoopResult]: For program point L906(lines 906 915) no Hoare annotation was computed. [2020-09-25 08:58:38,486 INFO L264 CegarLoopResult]: At program point L907-1(line 907) the Hoare annotation is: (let ((.cse0 (not (= main_~dev2~0.offset main_~dev1~0.offset))) (.cse1 (or (not (= main_~dev2~0.offset 0)) (not (= main_~dev2~0.base 0))))) (or (and (not (= ~elem~0.base main_~dev1~0.base)) .cse0 .cse1 (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset)) (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (not (= |old(~elem~0.offset)| 0)) (and .cse0 (not (= main_~dev1~0.offset ~elem~0.offset)) .cse1))) [2020-09-25 08:58:38,486 INFO L264 CegarLoopResult]: At program point L905(line 905) the Hoare annotation is: (let ((.cse0 (= |old(~elem~0.base)| ~elem~0.base)) (.cse1 (= |old(~elem~0.offset)| ~elem~0.offset))) (or (and (= main_~dev1~0.offset ~guard_malloc_counter~0.offset) (not (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|)) .cse0 .cse1) (and (= main_~dev1~0.base 0) (= main_~dev1~0.offset 0) .cse0 .cse1) (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (not (= |old(~elem~0.offset)| 0)))) [2020-09-25 08:58:38,486 INFO L268 CegarLoopResult]: For program point L906-1(lines 906 915) no Hoare annotation was computed. [2020-09-25 08:58:38,487 INFO L264 CegarLoopResult]: At program point L904(line 904) the Hoare annotation is: (or (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= ~elem~0.offset 0) (= |old(~elem~0.base)| ~elem~0.base)) (not (= |old(~elem~0.offset)| 0))) [2020-09-25 08:58:38,487 INFO L268 CegarLoopResult]: For program point L905-1(line 905) no Hoare annotation was computed. [2020-09-25 08:58:38,487 INFO L268 CegarLoopResult]: For program point L903(line 903) no Hoare annotation was computed. [2020-09-25 08:58:38,487 INFO L268 CegarLoopResult]: For program point L904-1(line 904) no Hoare annotation was computed. [2020-09-25 08:58:38,487 INFO L268 CegarLoopResult]: For program point L905-2(line 905) no Hoare annotation was computed. [2020-09-25 08:58:38,487 INFO L268 CegarLoopResult]: For program point L904-2(line 904) no Hoare annotation was computed. [2020-09-25 08:58:38,487 INFO L264 CegarLoopResult]: At program point __getMemoryENTRY(lines 869 876) the Hoare annotation is: (or (not (= |__getMemory_#in~size| 8)) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|)) (not (= ~elem~0.base ~elem~0.offset)) (not (= ~elem~0.offset 0))) [2020-09-25 08:58:38,488 INFO L268 CegarLoopResult]: For program point __getMemoryEXIT(lines 869 876) no Hoare annotation was computed. [2020-09-25 08:58:38,488 INFO L268 CegarLoopResult]: For program point __getMemoryFINAL(lines 869 876) no Hoare annotation was computed. [2020-09-25 08:58:38,488 INFO L268 CegarLoopResult]: For program point L875(line 875) no Hoare annotation was computed. [2020-09-25 08:58:38,488 INFO L268 CegarLoopResult]: For program point L874(line 874) no Hoare annotation was computed. [2020-09-25 08:58:38,488 INFO L268 CegarLoopResult]: For program point L873(line 873) no Hoare annotation was computed. [2020-09-25 08:58:38,488 INFO L268 CegarLoopResult]: For program point L872(line 872) no Hoare annotation was computed. [2020-09-25 08:58:38,488 INFO L268 CegarLoopResult]: For program point L873-1(lines 873 874) no Hoare annotation was computed. [2020-09-25 08:58:38,488 INFO L268 CegarLoopResult]: For program point L871(line 871) no Hoare annotation was computed. [2020-09-25 08:58:38,489 INFO L268 CegarLoopResult]: For program point L872-1(line 872) no Hoare annotation was computed. [2020-09-25 08:58:38,489 INFO L268 CegarLoopResult]: For program point L873-2(line 873) no Hoare annotation was computed. [2020-09-25 08:58:38,489 INFO L268 CegarLoopResult]: For program point L873-3(line 873) no Hoare annotation was computed. [2020-09-25 08:58:38,489 INFO L264 CegarLoopResult]: At program point L871-2(line 871) the Hoare annotation is: (or (not (= |__getMemory_#in~size| 8)) (not (= ~elem~0.base ~elem~0.offset)) (not (= ~elem~0.offset 0))) [2020-09-25 08:58:38,489 INFO L268 CegarLoopResult]: For program point L871-3(line 871) no Hoare annotation was computed. [2020-09-25 08:58:38,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 08:58:38 BoogieIcfgContainer [2020-09-25 08:58:38,499 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 08:58:38,502 INFO L168 Benchmark]: Toolchain (without parser) took 35709.51 ms. Allocated memory was 147.3 MB in the beginning and 460.3 MB in the end (delta: 313.0 MB). Free memory was 102.5 MB in the beginning and 100.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 315.2 MB. Max. memory is 7.1 GB. [2020-09-25 08:58:38,503 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 08:58:38,504 INFO L168 Benchmark]: CACSL2BoogieTranslator took 699.04 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 101.8 MB in the beginning and 169.3 MB in the end (delta: -67.5 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-09-25 08:58:38,505 INFO L168 Benchmark]: Boogie Preprocessor took 123.22 ms. Allocated memory is still 203.9 MB. Free memory was 169.3 MB in the beginning and 166.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-09-25 08:58:38,506 INFO L168 Benchmark]: RCFGBuilder took 716.02 ms. Allocated memory is still 203.9 MB. Free memory was 166.7 MB in the beginning and 119.6 MB in the end (delta: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 7.1 GB. [2020-09-25 08:58:38,507 INFO L168 Benchmark]: TraceAbstraction took 34161.99 ms. Allocated memory was 203.9 MB in the beginning and 460.3 MB in the end (delta: 256.4 MB). Free memory was 118.9 MB in the beginning and 100.2 MB in the end (delta: 18.7 MB). Peak memory consumption was 275.1 MB. Max. memory is 7.1 GB. [2020-09-25 08:58:38,511 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 699.04 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 101.8 MB in the beginning and 169.3 MB in the end (delta: -67.5 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.22 ms. Allocated memory is still 203.9 MB. Free memory was 169.3 MB in the beginning and 166.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 716.02 ms. Allocated memory is still 203.9 MB. Free memory was 166.7 MB in the beginning and 119.6 MB in the end (delta: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 34161.99 ms. Allocated memory was 203.9 MB in the beginning and 460.3 MB in the end (delta: 256.4 MB). Free memory was 118.9 MB in the beginning and 100.2 MB in the end (delta: 18.7 MB). Peak memory consumption was 275.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 32.9s, OverallIterations: 8, TraceHistogramMax: 3, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 464 SDtfs, 769 SDslu, 1145 SDs, 0 SdLazy, 2827 SolverSat, 255 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 246 GetRequests, 92 SyntacticMatches, 4 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 28 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 74 PreInvPairs, 84 NumberOfFragments, 422 HoareAnnotationTreeSize, 74 FomulaSimplifications, 249 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 18 FomulaSimplificationsInter, 968 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 26.8s InterpolantComputationTime, 536 NumberOfCodeBlocks, 536 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 528 ConstructedInterpolants, 0 QuantifiedInterpolants, 135084 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 125/155 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...