/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=0.6 --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.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:40:04,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:40:04,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:40:04,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:40:04,862 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:40:04,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:40:04,865 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:40:04,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:40:04,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:40:04,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:40:04,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:40:04,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:40:04,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:40:04,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:40:04,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:40:04,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:40:04,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:40:04,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:40:04,882 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:40:04,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:40:04,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:40:04,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:40:04,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:40:04,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:40:04,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:40:04,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:40:04,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:40:04,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:40:04,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:40:04,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:40:04,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:40:04,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:40:04,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:40:04,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:40:04,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:40:04,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:40:04,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:40:04,911 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:40:04,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:40:04,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:40:04,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:40:04,916 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 06:40:04,970 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:40:04,970 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:40:04,973 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:40:04,973 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:40:04,973 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:40:04,974 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:40:04,974 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:40:04,974 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:40:04,975 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:40:04,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:40:04,976 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:40:04,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:40:04,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:40:04,977 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:40:04,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:40:04,977 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:40:04,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:40:04,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:40:04,978 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:40:04,978 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:40:04,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:40:04,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:40:04,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:40:04,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:40:04,979 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:40:04,980 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:40:04,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:40:04,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:40:04,980 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:40:04,980 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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;log-additional-information=true; [2020-09-25 06:40:05,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:40:05,522 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:40:05,527 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:40:05,529 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:40:05,530 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:40:05,531 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.c_1.i [2020-09-25 06:40:05,632 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1a551a2e4/d8f5ac06a01148d2a3e3785bff335db8/FLAG988af5bf7 [2020-09-25 06:40:06,246 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:40:06,247 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule60_list2.c_1.i [2020-09-25 06:40:06,260 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1a551a2e4/d8f5ac06a01148d2a3e3785bff335db8/FLAG988af5bf7 [2020-09-25 06:40:06,511 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1a551a2e4/d8f5ac06a01148d2a3e3785bff335db8 [2020-09-25 06:40:06,525 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:40:06,531 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:40:06,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:40:06,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:40:06,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:40:06,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:40:06" (1/1) ... [2020-09-25 06:40:06,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18cc86df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:40:06, skipping insertion in model container [2020-09-25 06:40:06,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:40:06" (1/1) ... [2020-09-25 06:40:06,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:40:06,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:40:07,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:40:07,013 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:40:07,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:40:07,222 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:40:07,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:40:07 WrapperNode [2020-09-25 06:40:07,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:40:07,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:40:07,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:40:07,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:40:07,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:40:07" (1/1) ... [2020-09-25 06:40:07,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:40:07" (1/1) ... [2020-09-25 06:40:07,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:40:07" (1/1) ... [2020-09-25 06:40:07,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:40:07" (1/1) ... [2020-09-25 06:40:07,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:40:07" (1/1) ... [2020-09-25 06:40:07,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:40:07" (1/1) ... [2020-09-25 06:40:07,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:40:07" (1/1) ... [2020-09-25 06:40:07,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:40:07,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:40:07,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:40:07,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:40:07,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:40:07" (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 06:40:07,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:40:07,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:40:07,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-25 06:40:07,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2020-09-25 06:40:07,382 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2020-09-25 06:40:07,382 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-09-25 06:40:07,382 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-09-25 06:40:07,383 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:40:07,383 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:40:07,384 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-25 06:40:07,384 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-09-25 06:40:07,384 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-09-25 06:40:07,384 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-09-25 06:40:07,384 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-09-25 06:40:07,385 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-09-25 06:40:07,385 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-09-25 06:40:07,385 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-09-25 06:40:07,386 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-09-25 06:40:07,386 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-09-25 06:40:07,386 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-09-25 06:40:07,387 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-09-25 06:40:07,387 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-09-25 06:40:07,388 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-09-25 06:40:07,388 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-09-25 06:40:07,389 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-09-25 06:40:07,390 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-09-25 06:40:07,390 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-09-25 06:40:07,391 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-09-25 06:40:07,391 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-09-25 06:40:07,391 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-09-25 06:40:07,391 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-09-25 06:40:07,391 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-09-25 06:40:07,391 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-09-25 06:40:07,392 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-09-25 06:40:07,392 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-09-25 06:40:07,392 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-09-25 06:40:07,392 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-09-25 06:40:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-09-25 06:40:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-09-25 06:40:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-09-25 06:40:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-09-25 06:40:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-09-25 06:40:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-09-25 06:40:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-09-25 06:40:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-09-25 06:40:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-09-25 06:40:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-09-25 06:40:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-09-25 06:40:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:40:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-09-25 06:40:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-09-25 06:40:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-09-25 06:40:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-09-25 06:40:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-09-25 06:40:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-09-25 06:40:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-09-25 06:40:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-09-25 06:40:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-09-25 06:40:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-09-25 06:40:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-09-25 06:40:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-09-25 06:40:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-09-25 06:40:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-09-25 06:40:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-09-25 06:40:07,398 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-09-25 06:40:07,398 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-09-25 06:40:07,398 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-09-25 06:40:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-09-25 06:40:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-09-25 06:40:07,400 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-09-25 06:40:07,400 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-09-25 06:40:07,401 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-09-25 06:40:07,402 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-09-25 06:40:07,402 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-09-25 06:40:07,402 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-09-25 06:40:07,402 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-09-25 06:40:07,402 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-09-25 06:40:07,403 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-09-25 06:40:07,403 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-09-25 06:40:07,403 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-09-25 06:40:07,403 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-09-25 06:40:07,403 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-09-25 06:40:07,404 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-09-25 06:40:07,405 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-09-25 06:40:07,405 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-09-25 06:40:07,405 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-09-25 06:40:07,405 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-09-25 06:40:07,405 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-09-25 06:40:07,405 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-09-25 06:40:07,406 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-09-25 06:40:07,406 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-09-25 06:40:07,406 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-09-25 06:40:07,406 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-09-25 06:40:07,406 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-09-25 06:40:07,406 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-09-25 06:40:07,406 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-09-25 06:40:07,407 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-09-25 06:40:07,407 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-09-25 06:40:07,407 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-09-25 06:40:07,407 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-09-25 06:40:07,407 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-09-25 06:40:07,407 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-09-25 06:40:07,407 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-09-25 06:40:07,408 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-09-25 06:40:07,408 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-09-25 06:40:07,408 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-09-25 06:40:07,408 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-09-25 06:40:07,408 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-09-25 06:40:07,408 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-09-25 06:40:07,409 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-09-25 06:40:07,409 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-09-25 06:40:07,409 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:40:07,409 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 06:40:07,409 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 06:40:07,409 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:40:07,410 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 06:40:07,410 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-09-25 06:40:07,411 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 06:40:07,411 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-09-25 06:40:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-09-25 06:40:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-09-25 06:40:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-09-25 06:40:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-09-25 06:40:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-09-25 06:40:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-09-25 06:40:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-09-25 06:40:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-09-25 06:40:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-09-25 06:40:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-09-25 06:40:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:40:07,419 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2020-09-25 06:40:07,419 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2020-09-25 06:40:07,419 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-09-25 06:40:07,419 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-09-25 06:40:07,420 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:40:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:40:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:40:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 06:40:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:40:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:40:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:40:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:40:08,006 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:40:08,006 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 06:40:08,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:40:08 BoogieIcfgContainer [2020-09-25 06:40:08,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:40:08,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:40:08,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:40:08,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:40:08,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:40:06" (1/3) ... [2020-09-25 06:40:08,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e79de21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:40:08, skipping insertion in model container [2020-09-25 06:40:08,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:40:07" (2/3) ... [2020-09-25 06:40:08,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e79de21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:40:08, skipping insertion in model container [2020-09-25 06:40:08,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:40:08" (3/3) ... [2020-09-25 06:40:08,021 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.c_1.i [2020-09-25 06:40:08,034 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:40:08,045 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:40:08,070 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:40:08,099 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:40:08,099 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:40:08,099 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:40:08,100 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:40:08,100 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:40:08,100 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:40:08,100 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:40:08,100 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:40:08,123 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2020-09-25 06:40:08,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-25 06:40:08,133 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:40:08,134 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 06:40:08,134 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:40:08,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:40:08,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1490968618, now seen corresponding path program 1 times [2020-09-25 06:40:08,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:40:08,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260465240] [2020-09-25 06:40:08,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:40:08,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:08,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:08,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:08,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 06:40:08,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:08,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 402 [2020-09-25 06:40:08,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:08,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:08,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:40:08,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 06:40:08,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:40:08,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:40:08,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:40:08,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:08,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:08,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:08,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 06:40:08,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:08,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 06:40:08,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:08,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:08,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:08,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:08,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:08,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:08,961 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 06:40:08,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260465240] [2020-09-25 06:40:08,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:40:08,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:40:08,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891607] [2020-09-25 06:40:08,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:40:08,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:40:08,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:40:08,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:40:08,999 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 7 states. [2020-09-25 06:40:09,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:40:09,495 INFO L93 Difference]: Finished difference Result 128 states and 157 transitions. [2020-09-25 06:40:09,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 06:40:09,497 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-09-25 06:40:09,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:40:09,513 INFO L225 Difference]: With dead ends: 128 [2020-09-25 06:40:09,514 INFO L226 Difference]: Without dead ends: 67 [2020-09-25 06:40:09,520 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 06:40:09,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-09-25 06:40:09,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2020-09-25 06:40:09,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 06:40:09,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2020-09-25 06:40:09,587 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 21 [2020-09-25 06:40:09,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:40:09,587 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2020-09-25 06:40:09,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:40:09,588 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2020-09-25 06:40:09,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 06:40:09,591 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:40:09,591 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 06:40:09,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:40:09,592 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:40:09,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:40:09,592 INFO L82 PathProgramCache]: Analyzing trace with hash -114203518, now seen corresponding path program 1 times [2020-09-25 06:40:09,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:40:09,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1668421489] [2020-09-25 06:40:09,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:40:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:09,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:09,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:10,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:14,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:14,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 06:40:14,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:40:14,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4538 [2020-09-25 06:40:14,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:14,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:14,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 06:40:14,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 06:40:14,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 06:40:14,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:40:14,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:40:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:14,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:14,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:14,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 06:40:14,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:14,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 06:40:14,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:14,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:14,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:40:14,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:14,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:40:14,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:14,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 06:40:14,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:14,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:14,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:14,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:40:14,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:14,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 06:40:14,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:14,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:14,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:40:14,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:14,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 06:40:14,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:14,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 06:40:14,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:14,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:14,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:14,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:40:14,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:14,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:40:14,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:14,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:14,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:14,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:14,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:14,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:14,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 06:40:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:14,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:14,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:14,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:40:14,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:14,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 06:40:14,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:14,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:14,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:40:14,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:14,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 06:40:14,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:14,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 06:40:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:14,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:14,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:14,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:40:14,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:14,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:40:14,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:14,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:14,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:14,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:14,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:14,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:14,742 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 06:40:14,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1668421489] [2020-09-25 06:40:14,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:40:14,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:40:14,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126317310] [2020-09-25 06:40:14,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:40:14,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:40:14,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:40:14,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:40:14,747 INFO L87 Difference]: Start difference. First operand 63 states and 69 transitions. Second operand 8 states. [2020-09-25 06:40:15,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:40:15,452 INFO L93 Difference]: Finished difference Result 104 states and 119 transitions. [2020-09-25 06:40:15,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 06:40:15,453 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-09-25 06:40:15,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:40:15,456 INFO L225 Difference]: With dead ends: 104 [2020-09-25 06:40:15,456 INFO L226 Difference]: Without dead ends: 101 [2020-09-25 06:40:15,458 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 06:40:15,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-25 06:40:15,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 93. [2020-09-25 06:40:15,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-25 06:40:15,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 109 transitions. [2020-09-25 06:40:15,478 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 109 transitions. Word has length 61 [2020-09-25 06:40:15,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:40:15,479 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 109 transitions. [2020-09-25 06:40:15,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:40:15,479 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 109 transitions. [2020-09-25 06:40:15,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 06:40:15,482 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:40:15,482 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 06:40:15,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:40:15,482 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:40:15,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:40:15,483 INFO L82 PathProgramCache]: Analyzing trace with hash -116378698, now seen corresponding path program 1 times [2020-09-25 06:40:15,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:40:15,484 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1407504798] [2020-09-25 06:40:15,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:40:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:15,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:15,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:15,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:17,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:20,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:20,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 06:40:20,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:40:20,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 06:40:20,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:20,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:20,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:40:20,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 06:40:20,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 06:40:20,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:20,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:40:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:20,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:20,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:20,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 06:40:20,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:20,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 06:40:20,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:20,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:20,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:20,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:20,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:20,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:20,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 06:40:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:20,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:20,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:20,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:40:20,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:20,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 06:40:20,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:20,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:20,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:40:20,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:20,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 06:40:20,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:20,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 06:40:20,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:20,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:20,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:20,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:40:20,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:20,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 06:40:20,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:20,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:20,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:40:20,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:20,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 06:40:20,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:40:20,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 06:40:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:20,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:20,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:20,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:40:20,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:20,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 06:40:20,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:20,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:20,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:40:20,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:20,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 06:40:20,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:20,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 06:40:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:20,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:20,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:20,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:40:20,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:20,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:40:20,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:20,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:20,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:20,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:20,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:20,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:21,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 06:40:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:21,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:21,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:21,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:40:21,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:21,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:40:21,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:21,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:21,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:21,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:40:21,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:21,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:21,040 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 06:40:21,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1407504798] [2020-09-25 06:40:21,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:40:21,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 06:40:21,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552462102] [2020-09-25 06:40:21,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 06:40:21,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:40:21,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 06:40:21,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:40:21,044 INFO L87 Difference]: Start difference. First operand 93 states and 109 transitions. Second operand 10 states. [2020-09-25 06:40:21,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:40:21,565 INFO L93 Difference]: Finished difference Result 162 states and 197 transitions. [2020-09-25 06:40:21,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 06:40:21,567 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 70 [2020-09-25 06:40:21,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:40:21,569 INFO L225 Difference]: With dead ends: 162 [2020-09-25 06:40:21,570 INFO L226 Difference]: Without dead ends: 103 [2020-09-25 06:40:21,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2020-09-25 06:40:21,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-09-25 06:40:21,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 99. [2020-09-25 06:40:21,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-25 06:40:21,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 115 transitions. [2020-09-25 06:40:21,604 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 115 transitions. Word has length 70 [2020-09-25 06:40:21,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:40:21,606 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 115 transitions. [2020-09-25 06:40:21,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 06:40:21,606 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 115 transitions. [2020-09-25 06:40:21,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 06:40:21,610 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:40:21,611 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 06:40:21,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:40:21,611 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:40:21,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:40:21,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1814582916, now seen corresponding path program 1 times [2020-09-25 06:40:21,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:40:21,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [253663928] [2020-09-25 06:40:21,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:40:21,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:21,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:21,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:23,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:23,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 06:40:23,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:40:23,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1361 [2020-09-25 06:40:23,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:23,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:23,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 06:40:23,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 06:40:23,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 06:40:23,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:23,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:40:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:23,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:23,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:23,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 06:40:23,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:23,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 06:40:23,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:23,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:23,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:40:23,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:23,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:40:23,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:23,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 06:40:23,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:23,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:23,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:23,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:40:23,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:23,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 06:40:23,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:23,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:23,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:40:23,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:23,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 06:40:23,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:40:23,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 06:40:23,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:23,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:23,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:23,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:40:23,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:23,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:40:23,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:23,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:23,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:23,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:23,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:23,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:23,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 06:40:23,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:23,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:23,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:23,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:40:23,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:23,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 06:40:23,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:23,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:23,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:40:23,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:23,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 06:40:23,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:23,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 06:40:23,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:23,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:23,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:23,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:40:23,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:23,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:40:23,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:23,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:23,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:23,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:23,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:23,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:23,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 06:40:23,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:23,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:23,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:23,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:40:23,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:23,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 06:40:23,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:23,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:23,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:40:23,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:40:23,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 06:40:23,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:23,471 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 06:40:23,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [253663928] [2020-09-25 06:40:23,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:40:23,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 06:40:23,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922966640] [2020-09-25 06:40:23,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:40:23,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:40:23,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:40:23,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:40:23,475 INFO L87 Difference]: Start difference. First operand 99 states and 115 transitions. Second operand 9 states. [2020-09-25 06:40:24,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:40:24,225 INFO L93 Difference]: Finished difference Result 118 states and 133 transitions. [2020-09-25 06:40:24,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 06:40:24,226 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-09-25 06:40:24,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:40:24,230 INFO L225 Difference]: With dead ends: 118 [2020-09-25 06:40:24,230 INFO L226 Difference]: Without dead ends: 114 [2020-09-25 06:40:24,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-09-25 06:40:24,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-09-25 06:40:24,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 107. [2020-09-25 06:40:24,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-09-25 06:40:24,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 122 transitions. [2020-09-25 06:40:24,259 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 122 transitions. Word has length 70 [2020-09-25 06:40:24,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:40:24,260 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 122 transitions. [2020-09-25 06:40:24,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:40:24,260 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 122 transitions. [2020-09-25 06:40:24,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 06:40:24,266 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:40:24,266 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 06:40:24,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:40:24,266 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:40:24,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:40:24,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1230540462, now seen corresponding path program 1 times [2020-09-25 06:40:24,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:40:24,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1910566746] [2020-09-25 06:40:24,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:40:24,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:24,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:24,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:25,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:26,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:26,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 06:40:26,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:40:26,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2477 [2020-09-25 06:40:26,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:26,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:26,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:40:26,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-25 06:40:26,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 06:40:26,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:26,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:40:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:26,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:26,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:26,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 06:40:26,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:26,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 06:40:26,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:26,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:26,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:26,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:26,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:26,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:26,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 06:40:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:26,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:26,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:26,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:40:26,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:26,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:40:26,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:26,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:26,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:26,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:26,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:26,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:26,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 06:40:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:26,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:26,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:26,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:40:26,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:26,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:40:26,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:26,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:26,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:26,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:26,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:26,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:26,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 06:40:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:26,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:26,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:26,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:40:26,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:26,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 06:40:26,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:26,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:26,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:40:26,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:26,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 06:40:26,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:40:27,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 06:40:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:27,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:27,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:27,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:40:27,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:27,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 06:40:27,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:27,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:27,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:40:27,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:27,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 06:40:27,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:27,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 06:40:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:27,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:27,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:27,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:40:27,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:27,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:40:27,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:27,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:27,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:27,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 06:40:27,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:27,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:40:27,132 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 06:40:27,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1910566746] [2020-09-25 06:40:27,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:40:27,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 06:40:27,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400582707] [2020-09-25 06:40:27,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 06:40:27,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:40:27,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 06:40:27,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:40:27,136 INFO L87 Difference]: Start difference. First operand 107 states and 122 transitions. Second operand 10 states. [2020-09-25 06:40:27,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:40:27,586 INFO L93 Difference]: Finished difference Result 174 states and 203 transitions. [2020-09-25 06:40:27,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 06:40:27,587 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-09-25 06:40:27,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:40:27,592 INFO L225 Difference]: With dead ends: 174 [2020-09-25 06:40:27,592 INFO L226 Difference]: Without dead ends: 102 [2020-09-25 06:40:27,593 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 06:40:27,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-09-25 06:40:27,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 99. [2020-09-25 06:40:27,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-25 06:40:27,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 113 transitions. [2020-09-25 06:40:27,612 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 113 transitions. Word has length 71 [2020-09-25 06:40:27,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:40:27,613 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 113 transitions. [2020-09-25 06:40:27,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 06:40:27,613 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 113 transitions. [2020-09-25 06:40:27,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 06:40:27,614 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:40:27,614 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 06:40:27,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:40:27,615 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:40:27,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:40:27,615 INFO L82 PathProgramCache]: Analyzing trace with hash 983151375, now seen corresponding path program 1 times [2020-09-25 06:40:27,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:40:27,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1558723731] [2020-09-25 06:40:27,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:40:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:27,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:28,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:28,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 06:40:28,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:28,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 836 [2020-09-25 06:40:28,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:28,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:28,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 06:40:28,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 06:40:28,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 06:40:28,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:28,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:40:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:28,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:28,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:28,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 06:40:28,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:28,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 06:40:28,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:28,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:28,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:28,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:28,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:28,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:28,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 06:40:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:28,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:28,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:28,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:40:28,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:28,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 06:40:28,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:28,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:28,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:40:28,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:28,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 06:40:28,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:28,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 06:40:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:28,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:28,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:28,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:40:28,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:28,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 06:40:28,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:28,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:28,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:40:28,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:28,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 06:40:28,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:28,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 06:40:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:28,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:28,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:28,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:40:28,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:28,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 06:40:28,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:28,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:28,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 06:40:28,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:40:28,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 06:40:28,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:40:28,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 06:40:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:28,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:28,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:28,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:40:28,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:28,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 06:40:28,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:28,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:28,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:40:28,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:40:28,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 06:40:28,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:29,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 06:40:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:29,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:29,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:29,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:40:29,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:29,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 06:40:29,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:29,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:29,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:40:29,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:29,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 06:40:29,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:29,141 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 06:40:29,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1558723731] [2020-09-25 06:40:29,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:40:29,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 06:40:29,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392840272] [2020-09-25 06:40:29,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 06:40:29,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:40:29,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 06:40:29,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2020-09-25 06:40:29,144 INFO L87 Difference]: Start difference. First operand 99 states and 113 transitions. Second operand 23 states. [2020-09-25 06:40:30,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:40:30,757 INFO L93 Difference]: Finished difference Result 118 states and 137 transitions. [2020-09-25 06:40:30,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 06:40:30,759 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 71 [2020-09-25 06:40:30,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:40:30,761 INFO L225 Difference]: With dead ends: 118 [2020-09-25 06:40:30,761 INFO L226 Difference]: Without dead ends: 101 [2020-09-25 06:40:30,766 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 06:40:30,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-25 06:40:30,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 89. [2020-09-25 06:40:30,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-09-25 06:40:30,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 98 transitions. [2020-09-25 06:40:30,777 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 98 transitions. Word has length 71 [2020-09-25 06:40:30,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:40:30,777 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 98 transitions. [2020-09-25 06:40:30,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 06:40:30,778 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 98 transitions. [2020-09-25 06:40:30,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 06:40:30,779 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:40:30,779 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 06:40:30,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:40:30,780 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:40:30,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:40:30,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1660138148, now seen corresponding path program 1 times [2020-09-25 06:40:30,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:40:30,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [857878735] [2020-09-25 06:40:30,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:40:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:30,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:31,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:33,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:33,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 06:40:33,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:40:33,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2682 [2020-09-25 06:40:33,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:33,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:33,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:40:33,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-09-25 06:40:33,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 06:40:33,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:40:33,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:40:33,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:33,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:33,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:33,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 06:40:33,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:33,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:40:33,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:33,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:33,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:33,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:33,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:33,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:33,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 06:40:33,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:33,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:33,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:33,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:40:33,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:33,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:40:33,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:33,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:33,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:33,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:33,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:33,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:33,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 06:40:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:33,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:33,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:33,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:40:33,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:33,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:40:33,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:33,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:33,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:33,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:33,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:33,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:33,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 06:40:33,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:33,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:33,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:33,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:40:33,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:33,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:40:33,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:33,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:33,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:33,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:33,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:33,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:40:33,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 06:40:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:33,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:33,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:33,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:40:33,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:33,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:40:33,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:33,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:33,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:33,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:33,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:33,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:33,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 06:40:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:33,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:33,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:33,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:40:33,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:33,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:40:33,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:33,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:33,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:33,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:33,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:33,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:33,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 06:40:33,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:33,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:33,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:33,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:40:33,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:33,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:40:33,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:33,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:33,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:33,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:33,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:33,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:33,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 06:40:33,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:33,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:33,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:33,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:40:33,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:33,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 06:40:33,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:33,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:33,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:40:33,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:33,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:40:33,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:33,737 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 06:40:33,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [857878735] [2020-09-25 06:40:33,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:40:33,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 06:40:33,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030777628] [2020-09-25 06:40:33,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 06:40:33,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:40:33,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 06:40:33,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:40:33,739 INFO L87 Difference]: Start difference. First operand 89 states and 98 transitions. Second operand 10 states. [2020-09-25 06:40:34,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:40:34,314 INFO L93 Difference]: Finished difference Result 104 states and 114 transitions. [2020-09-25 06:40:34,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 06:40:34,315 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-09-25 06:40:34,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:40:34,318 INFO L225 Difference]: With dead ends: 104 [2020-09-25 06:40:34,318 INFO L226 Difference]: Without dead ends: 98 [2020-09-25 06:40:34,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2020-09-25 06:40:34,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-09-25 06:40:34,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2020-09-25 06:40:34,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-09-25 06:40:34,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2020-09-25 06:40:34,330 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 85 [2020-09-25 06:40:34,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:40:34,330 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2020-09-25 06:40:34,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 06:40:34,331 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2020-09-25 06:40:34,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 06:40:34,332 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:40:34,332 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 06:40:34,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 06:40:34,333 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:40:34,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:40:34,333 INFO L82 PathProgramCache]: Analyzing trace with hash 2046230471, now seen corresponding path program 1 times [2020-09-25 06:40:34,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:40:34,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2100438299] [2020-09-25 06:40:34,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:40:34,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:34,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:34,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:34,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:37,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:38,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:39,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:39,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 06:40:39,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:40:39,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 06:40:39,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:39,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:39,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:40:39,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-09-25 06:40:39,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:40:39,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:39,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:40:39,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:39,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:39,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:39,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 06:40:39,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:39,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:40:39,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:39,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:39,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:39,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:39,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:39,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:40:39,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 06:40:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:39,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:39,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:39,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:40:39,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:39,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:40:39,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:39,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:39,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:39,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:39,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:39,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:40:39,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 06:40:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:39,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:39,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:39,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:40:39,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:39,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:40:39,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:39,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:39,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:39,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:39,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:39,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:40:39,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 06:40:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:39,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:39,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:39,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:40:39,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:39,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:40:39,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:39,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:39,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:39,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:39,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:39,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:39,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 06:40:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:39,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:39,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:39,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:40:39,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:39,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:40:39,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:39,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:39,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:39,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:39,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:39,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:40:39,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 06:40:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:39,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:39,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:39,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:40:39,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:39,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 06:40:39,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:39,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:39,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:40:39,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:39,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 06:40:39,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:40:39,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 06:40:39,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:39,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:39,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:39,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:40:39,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:39,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 06:40:39,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:39,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:39,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:40:39,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:39,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 06:40:39,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:39,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 06:40:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:39,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:39,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:39,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:40:39,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:39,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 06:40:39,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:39,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:39,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:40:39,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:39,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:40:39,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:40:39,818 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 06:40:39,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2100438299] [2020-09-25 06:40:39,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:40:39,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 06:40:39,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675149843] [2020-09-25 06:40:39,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 06:40:39,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:40:39,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 06:40:39,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:40:39,820 INFO L87 Difference]: Start difference. First operand 97 states and 105 transitions. Second operand 10 states. [2020-09-25 06:40:40,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:40:40,727 INFO L93 Difference]: Finished difference Result 124 states and 132 transitions. [2020-09-25 06:40:40,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 06:40:40,728 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2020-09-25 06:40:40,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:40:40,730 INFO L225 Difference]: With dead ends: 124 [2020-09-25 06:40:40,730 INFO L226 Difference]: Without dead ends: 111 [2020-09-25 06:40:40,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2020-09-25 06:40:40,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-09-25 06:40:40,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 100. [2020-09-25 06:40:40,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-09-25 06:40:40,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 107 transitions. [2020-09-25 06:40:40,742 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 107 transitions. Word has length 86 [2020-09-25 06:40:40,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:40:40,742 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 107 transitions. [2020-09-25 06:40:40,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 06:40:40,742 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 107 transitions. [2020-09-25 06:40:40,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-09-25 06:40:40,744 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:40:40,744 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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 06:40:40,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 06:40:40,744 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:40:40,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:40:40,745 INFO L82 PathProgramCache]: Analyzing trace with hash -416868516, now seen corresponding path program 1 times [2020-09-25 06:40:40,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:40:40,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2013238108] [2020-09-25 06:40:40,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:40:40,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 06:40:40,771 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 06:40:40,771 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 06:40:40,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 06:40:40,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:40:40 BoogieIcfgContainer [2020-09-25 06:40:40,803 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 06:40:40,807 INFO L168 Benchmark]: Toolchain (without parser) took 34278.31 ms. Allocated memory was 140.5 MB in the beginning and 488.1 MB in the end (delta: 347.6 MB). Free memory was 101.7 MB in the beginning and 332.1 MB in the end (delta: -230.5 MB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2020-09-25 06:40:40,808 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 06:40:40,809 INFO L168 Benchmark]: CACSL2BoogieTranslator took 690.81 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 101.0 MB in the beginning and 168.3 MB in the end (delta: -67.3 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2020-09-25 06:40:40,810 INFO L168 Benchmark]: Boogie Preprocessor took 66.48 ms. Allocated memory is still 202.9 MB. Free memory was 168.3 MB in the beginning and 165.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-09-25 06:40:40,811 INFO L168 Benchmark]: RCFGBuilder took 721.62 ms. Allocated memory is still 202.9 MB. Free memory was 165.7 MB in the beginning and 118.7 MB in the end (delta: 47.0 MB). Peak memory consumption was 47.0 MB. Max. memory is 7.1 GB. [2020-09-25 06:40:40,812 INFO L168 Benchmark]: TraceAbstraction took 32790.09 ms. Allocated memory was 202.9 MB in the beginning and 488.1 MB in the end (delta: 285.2 MB). Free memory was 118.1 MB in the beginning and 332.1 MB in the end (delta: -214.0 MB). Peak memory consumption was 71.2 MB. Max. memory is 7.1 GB. [2020-09-25 06:40:40,815 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 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 690.81 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 101.0 MB in the beginning and 168.3 MB in the end (delta: -67.3 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 66.48 ms. Allocated memory is still 202.9 MB. Free memory was 168.3 MB in the beginning and 165.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 721.62 ms. Allocated memory is still 202.9 MB. Free memory was 165.7 MB in the beginning and 118.7 MB in the end (delta: 47.0 MB). Peak memory consumption was 47.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32790.09 ms. Allocated memory was 202.9 MB in the beginning and 488.1 MB in the end (delta: 285.2 MB). Free memory was 118.1 MB in the beginning and 332.1 MB in the end (delta: -214.0 MB). Peak memory consumption was 71.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L867] void * guard_malloc_counter = 0; [L887] struct list_head *elem = ((void *)0); [L900] static struct list_head head; [L903] struct list_head *dev1, *dev2; [L904] CALL, EXPR my_malloc(sizeof(*dev1)) [L879] CALL, EXPR __getMemory(size) [L871] (size > 0) ? (0) : __blast_assert () [L872] guard_malloc_counter++ [L873] COND FALSE !(!__VERIFIER_nondet_int()) [L875] return (void *) guard_malloc_counter; [L879] RET, EXPR __getMemory(size) [L879] return __getMemory(size); [L904] RET, EXPR my_malloc(sizeof(*dev1)) [L904] dev1 = my_malloc(sizeof(*dev1)) [L905] CALL, EXPR my_malloc(sizeof(*dev2)) [L879] CALL, EXPR __getMemory(size) [L871] (size > 0) ? (0) : __blast_assert () [L872] guard_malloc_counter++ [L873] COND FALSE !(!__VERIFIER_nondet_int()) [L875] return (void *) guard_malloc_counter; [L879] RET, EXPR __getMemory(size) [L879] return __getMemory(size); [L905] RET, EXPR my_malloc(sizeof(*dev2)) [L905] dev2 = my_malloc(sizeof(*dev2)) [L906] COND TRUE dev1!=((void *)0) && dev2!=((void *)0) [L907] CALL list_add(dev2, &head) [L890] (new!=elem) ? (0) : __blast_assert () [L891] COND FALSE !(__VERIFIER_nondet_int()) [L907] RET list_add(dev2, &head) [L908] CALL list_add(dev1, &head) [L890] (new!=elem) ? (0) : __blast_assert () [L891] COND TRUE __VERIFIER_nondet_int() [L892] elem = new [L908] RET list_add(dev1, &head) [L909] CALL list_del(dev2) [L896] COND FALSE !(entry==elem) [L909] RET list_del(dev2) [L910] CALL list_add(dev2, &head) [L890] (new!=elem) ? (0) : __blast_assert () [L891] COND FALSE !(__VERIFIER_nondet_int()) [L910] RET list_add(dev2, &head) [L913] CALL list_add(dev1, &head) [L890] (new!=elem) ? (0) : __blast_assert () [L890] CALL __blast_assert () [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 32.6s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 495 SDtfs, 813 SDslu, 1192 SDs, 0 SdLazy, 3155 SolverSat, 326 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 238 GetRequests, 89 SyntacticMatches, 3 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred 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, 50 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 25.7s InterpolantComputationTime, 629 NumberOfCodeBlocks, 629 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 527 ConstructedInterpolants, 0 QuantifiedInterpolants, 129042 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 133/155 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 incorrect! Received shutdown request...