/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/rule60_list2.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:58:00,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:58:00,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:58:00,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:58:00,897 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:58:00,905 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:58:00,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:58:00,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:58:00,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:58:00,918 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:58:00,919 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:58:00,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:58:00,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:58:00,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:58:00,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:58:00,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:58:00,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:58:00,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:58:00,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:58:00,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:58:00,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:58:00,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:58:00,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:58:00,952 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:58:00,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:58:00,964 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:58:00,964 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:58:00,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:58:00,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:58:00,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:58:00,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:58:00,977 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:58:00,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:58:00,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:58:00,982 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:58:00,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:58:00,983 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:58:00,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:58:00,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:58:00,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:58:00,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:58:00,988 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 08:58:01,037 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:58:01,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:58:01,039 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:58:01,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:58:01,040 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:58:01,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:58:01,040 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:58:01,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:58:01,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:58:01,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:58:01,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:58:01,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:58:01,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:58:01,043 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:58:01,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:58:01,043 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:58:01,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:58:01,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:58:01,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:58:01,044 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:58:01,044 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:58:01,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:58:01,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:58:01,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:58:01,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:58:01,045 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:58:01,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:58:01,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:58:01,045 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:58:01,045 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:58:01,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:58:01,554 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:58:01,559 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:58:01,562 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:58:01,562 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:58:01,563 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.c_1.i [2020-09-25 08:58:01,654 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7ca3bf2d0/bdf71e1e6df04ef583bc533894364841/FLAG3ec921fe1 [2020-09-25 08:58:02,213 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:58:02,214 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule60_list2.c_1.i [2020-09-25 08:58:02,229 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7ca3bf2d0/bdf71e1e6df04ef583bc533894364841/FLAG3ec921fe1 [2020-09-25 08:58:02,500 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7ca3bf2d0/bdf71e1e6df04ef583bc533894364841 [2020-09-25 08:58:02,514 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:58:02,519 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:58:02,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:58:02,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:58:02,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:58:02,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:58:02" (1/1) ... [2020-09-25 08:58:02,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e93eba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:02, skipping insertion in model container [2020-09-25 08:58:02,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:58:02" (1/1) ... [2020-09-25 08:58:02,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:58:02,591 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:58:03,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:58:03,078 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:58:03,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:58:03,207 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:58:03,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:03 WrapperNode [2020-09-25 08:58:03,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:58:03,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:58:03,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:58:03,210 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:58:03,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:03" (1/1) ... [2020-09-25 08:58:03,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:03" (1/1) ... [2020-09-25 08:58:03,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:03" (1/1) ... [2020-09-25 08:58:03,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:03" (1/1) ... [2020-09-25 08:58:03,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:03" (1/1) ... [2020-09-25 08:58:03,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:03" (1/1) ... [2020-09-25 08:58:03,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:03" (1/1) ... [2020-09-25 08:58:03,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:58:03,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:58:03,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:58:03,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:58:03,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:03" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:58:03,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:58:03,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:58:03,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-25 08:58:03,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2020-09-25 08:58:03,362 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2020-09-25 08:58:03,363 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-09-25 08:58:03,363 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-09-25 08:58:03,363 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:58:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:58:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-25 08:58:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-09-25 08:58:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-09-25 08:58:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-09-25 08:58:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-09-25 08:58:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-09-25 08:58:03,369 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-09-25 08:58:03,370 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-09-25 08:58:03,370 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-09-25 08:58:03,370 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-09-25 08:58:03,370 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-09-25 08:58:03,371 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-09-25 08:58:03,372 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-09-25 08:58:03,372 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-09-25 08:58:03,372 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-09-25 08:58:03,372 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-09-25 08:58:03,373 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-09-25 08:58:03,373 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-09-25 08:58:03,373 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-09-25 08:58:03,373 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-09-25 08:58:03,373 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-09-25 08:58:03,373 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-09-25 08:58:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-09-25 08:58:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-09-25 08:58:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-09-25 08:58:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-09-25 08:58:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-09-25 08:58:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-09-25 08:58:03,375 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-09-25 08:58:03,375 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-09-25 08:58:03,375 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-09-25 08:58:03,375 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-09-25 08:58:03,375 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-09-25 08:58:03,375 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-09-25 08:58:03,375 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-09-25 08:58:03,376 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-09-25 08:58:03,376 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-09-25 08:58:03,376 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-09-25 08:58:03,376 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-09-25 08:58:03,376 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:58:03,376 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-09-25 08:58:03,376 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-09-25 08:58:03,377 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-09-25 08:58:03,377 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-09-25 08:58:03,377 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-09-25 08:58:03,377 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-09-25 08:58:03,377 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-09-25 08:58:03,377 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-09-25 08:58:03,377 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-09-25 08:58:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-09-25 08:58:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-09-25 08:58:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-09-25 08:58:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-09-25 08:58:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-09-25 08:58:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-09-25 08:58:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-09-25 08:58:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-09-25 08:58:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-09-25 08:58:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-09-25 08:58:03,379 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-09-25 08:58:03,379 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-09-25 08:58:03,379 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-09-25 08:58:03,379 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-09-25 08:58:03,379 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-09-25 08:58:03,380 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-09-25 08:58:03,380 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-09-25 08:58:03,380 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-09-25 08:58:03,380 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-09-25 08:58:03,380 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-09-25 08:58:03,380 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-09-25 08:58:03,381 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-09-25 08:58:03,381 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-09-25 08:58:03,381 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-09-25 08:58:03,381 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-09-25 08:58:03,381 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-09-25 08:58:03,381 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-09-25 08:58:03,381 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-09-25 08:58:03,382 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-09-25 08:58:03,382 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-09-25 08:58:03,382 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-09-25 08:58:03,382 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-09-25 08:58:03,382 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-09-25 08:58:03,382 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-09-25 08:58:03,382 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-09-25 08:58:03,382 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-09-25 08:58:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-09-25 08:58:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-09-25 08:58:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-09-25 08:58:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-09-25 08:58:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-09-25 08:58:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-09-25 08:58:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-09-25 08:58:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-09-25 08:58:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-09-25 08:58:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-09-25 08:58:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-09-25 08:58:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-09-25 08:58:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-09-25 08:58:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-09-25 08:58:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-09-25 08:58:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-09-25 08:58:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-09-25 08:58:03,385 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:58:03,385 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 08:58:03,385 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 08:58:03,385 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:58:03,385 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 08:58:03,385 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-09-25 08:58:03,385 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 08:58:03,385 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-09-25 08:58:03,386 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-09-25 08:58:03,386 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-09-25 08:58:03,386 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-09-25 08:58:03,386 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-09-25 08:58:03,386 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-09-25 08:58:03,387 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-09-25 08:58:03,387 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-09-25 08:58:03,387 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-09-25 08:58:03,387 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-09-25 08:58:03,387 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-09-25 08:58:03,387 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:58:03,387 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2020-09-25 08:58:03,388 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2020-09-25 08:58:03,388 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-09-25 08:58:03,388 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-09-25 08:58:03,388 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:58:03,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:58:03,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:58:03,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 08:58:03,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:58:03,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:58:03,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:58:03,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:58:03,947 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:58:03,947 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 08:58:03,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:58:03 BoogieIcfgContainer [2020-09-25 08:58:03,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:58:03,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:58:03,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:58:03,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:58:03,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:58:02" (1/3) ... [2020-09-25 08:58:03,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ecb89c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:58:03, skipping insertion in model container [2020-09-25 08:58:03,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:03" (2/3) ... [2020-09-25 08:58:03,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ecb89c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:58:03, skipping insertion in model container [2020-09-25 08:58:03,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:58:03" (3/3) ... [2020-09-25 08:58:03,963 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.c_1.i [2020-09-25 08:58:03,973 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:58:03,991 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:58:04,012 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:58:04,041 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:58:04,041 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:58:04,041 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:58:04,042 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:58:04,042 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:58:04,042 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:58:04,042 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:58:04,042 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:58:04,066 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2020-09-25 08:58:04,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-25 08:58:04,074 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:58:04,076 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:58:04,076 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:58:04,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:58:04,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1490968618, now seen corresponding path program 1 times [2020-09-25 08:58:04,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:58:04,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1889050395] [2020-09-25 08:58:04,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:58:04,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:04,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:04,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:04,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 08:58:04,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:04,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 405 [2020-09-25 08:58:04,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:04,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:04,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:58:04,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 08:58:04,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:58:04,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 08:58:04,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:58:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:04,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:04,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:04,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 08:58:04,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:04,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 08:58:04,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:04,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:04,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:04,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:04,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:04,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:04,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:58:04,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1889050395] [2020-09-25 08:58:04,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:58:04,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:58:04,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53307881] [2020-09-25 08:58:04,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:58:04,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:58:04,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:58:04,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:58:04,996 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 7 states. [2020-09-25 08:58:05,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:58:05,468 INFO L93 Difference]: Finished difference Result 128 states and 157 transitions. [2020-09-25 08:58:05,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 08:58:05,470 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-09-25 08:58:05,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:58:05,486 INFO L225 Difference]: With dead ends: 128 [2020-09-25 08:58:05,487 INFO L226 Difference]: Without dead ends: 67 [2020-09-25 08:58:05,493 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-09-25 08:58:05,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-09-25 08:58:05,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2020-09-25 08:58:05,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 08:58:05,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2020-09-25 08:58:05,562 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 21 [2020-09-25 08:58:05,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:58:05,562 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2020-09-25 08:58:05,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:58:05,563 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2020-09-25 08:58:05,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 08:58:05,566 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:58:05,567 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:58:05,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:58:05,567 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:58:05,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:58:05,568 INFO L82 PathProgramCache]: Analyzing trace with hash -114203518, now seen corresponding path program 1 times [2020-09-25 08:58:05,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:58:05,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424361227] [2020-09-25 08:58:05,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:58:05,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:05,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:05,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:06,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:10,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:10,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 08:58:10,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:58:10,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4653 [2020-09-25 08:58:10,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:10,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:10,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 08:58:10,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 08:58:10,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 08:58:10,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 08:58:10,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:58:10,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:10,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:10,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:10,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 08:58:10,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:10,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 08:58:10,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:10,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:10,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:58:10,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:10,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:58:10,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:58:10,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 08:58:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:10,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:10,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:10,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:10,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:10,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 08:58:10,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:10,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:10,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:58:10,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:10,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:58:10,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:10,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:10,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:10,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:10,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:10,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:10,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:10,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:58:10,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:10,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:10,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:10,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:10,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:10,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:10,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:58:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:10,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:10,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:10,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:10,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:10,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 08:58:10,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:10,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:10,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:58:10,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:10,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:58:10,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:10,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:10,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:10,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:10,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:10,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:10,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 08:58:10,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:10,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:10,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:10,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:10,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:10,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:10,899 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 08:58:10,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1424361227] [2020-09-25 08:58:10,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:58:10,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 08:58:10,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784957217] [2020-09-25 08:58:10,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:58:10,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:58:10,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:58:10,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:58:10,908 INFO L87 Difference]: Start difference. First operand 63 states and 69 transitions. Second operand 8 states. [2020-09-25 08:58:11,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:58:11,682 INFO L93 Difference]: Finished difference Result 104 states and 119 transitions. [2020-09-25 08:58:11,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 08:58:11,683 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-09-25 08:58:11,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:58:11,686 INFO L225 Difference]: With dead ends: 104 [2020-09-25 08:58:11,686 INFO L226 Difference]: Without dead ends: 101 [2020-09-25 08:58:11,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 08:58:11,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-25 08:58:11,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 93. [2020-09-25 08:58:11,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-25 08:58:11,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 109 transitions. [2020-09-25 08:58:11,708 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 109 transitions. Word has length 61 [2020-09-25 08:58:11,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:58:11,709 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 109 transitions. [2020-09-25 08:58:11,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:58:11,709 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 109 transitions. [2020-09-25 08:58:11,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 08:58:11,712 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:58:11,712 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:58:11,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:58:11,713 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:58:11,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:58:11,713 INFO L82 PathProgramCache]: Analyzing trace with hash -116378698, now seen corresponding path program 1 times [2020-09-25 08:58:11,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:58:11,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1672663072] [2020-09-25 08:58:11,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:58:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:11,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:11,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:12,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:13,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:16,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:16,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 08:58:16,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:58:16,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:58:16,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:16,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:16,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 08:58:16,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 08:58:16,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 08:58:16,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:16,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:58:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:16,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:16,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:16,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 08:58:16,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:16,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 08:58:16,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:16,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:16,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:58:16,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:16,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:58:16,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:16,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 08:58:16,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:16,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:16,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:16,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:16,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:16,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 08:58:16,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:16,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:16,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:58:16,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:16,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:58:16,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:17,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:17,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:17,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:17,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:17,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:17,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:17,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 08:58:17,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:17,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:17,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:17,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:17,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:17,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:17,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:58:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:17,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:17,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:17,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:17,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:17,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 08:58:17,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:17,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:17,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:58:17,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:17,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:58:17,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:17,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:17,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:17,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:17,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:17,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:17,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:17,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 08:58:17,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:17,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:17,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:17,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:17,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:17,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:17,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 08:58:17,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:17,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:17,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:17,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 08:58:17,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:17,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 08:58:17,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:17,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:17,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:58:17,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 08:58:17,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 08:58:17,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:17,220 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 08:58:17,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1672663072] [2020-09-25 08:58:17,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:58:17,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 08:58:17,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958283507] [2020-09-25 08:58:17,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:58:17,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:58:17,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:58:17,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:58:17,226 INFO L87 Difference]: Start difference. First operand 93 states and 109 transitions. Second operand 9 states. [2020-09-25 08:58:17,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:58:17,909 INFO L93 Difference]: Finished difference Result 112 states and 127 transitions. [2020-09-25 08:58:17,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 08:58:17,910 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-09-25 08:58:17,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:58:17,913 INFO L225 Difference]: With dead ends: 112 [2020-09-25 08:58:17,913 INFO L226 Difference]: Without dead ends: 108 [2020-09-25 08:58:17,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-09-25 08:58:17,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-09-25 08:58:17,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 101. [2020-09-25 08:58:17,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-25 08:58:17,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 116 transitions. [2020-09-25 08:58:17,943 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 116 transitions. Word has length 70 [2020-09-25 08:58:17,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:58:17,945 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 116 transitions. [2020-09-25 08:58:17,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:58:17,946 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2020-09-25 08:58:17,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 08:58:17,948 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:58:17,948 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:58:17,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:58:17,949 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:58:17,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:58:17,949 INFO L82 PathProgramCache]: Analyzing trace with hash 2087874581, now seen corresponding path program 1 times [2020-09-25 08:58:17,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:58:17,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [394694605] [2020-09-25 08:58:17,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:58:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:18,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:18,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:18,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:19,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:22,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:22,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 08:58:22,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:58:22,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4035 [2020-09-25 08:58:22,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:22,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:22,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:58:22,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 08:58:22,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 08:58:22,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:22,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:58:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:22,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:22,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:22,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 08:58:22,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:22,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:58:22,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:22,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:22,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:22,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:22,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:22,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:22,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 08:58:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:22,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:22,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:22,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:22,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:22,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 08:58:22,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:22,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:22,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:58:22,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:22,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 08:58:22,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:22,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:22,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:22,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:22,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:22,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:22,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 08:58:22,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:22,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:22,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:58:22,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:22,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 08:58:22,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:22,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:58:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:22,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:22,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:22,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:22,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:22,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 08:58:22,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:22,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:22,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:58:22,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:22,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:58:22,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:22,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:22,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:22,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:22,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:22,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:22,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:58:22,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:22,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:22,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:22,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:22,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:22,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:22,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 08:58:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:22,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:22,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:22,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:58:22,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:22,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:58:22,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:22,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:22,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:22,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 08:58:22,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:22,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:22,337 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 08:58:22,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [394694605] [2020-09-25 08:58:22,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:58:22,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 08:58:22,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353716426] [2020-09-25 08:58:22,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:58:22,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:58:22,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:58:22,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:58:22,340 INFO L87 Difference]: Start difference. First operand 101 states and 116 transitions. Second operand 10 states. [2020-09-25 08:58:22,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:58:22,785 INFO L93 Difference]: Finished difference Result 177 states and 209 transitions. [2020-09-25 08:58:22,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 08:58:22,786 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-09-25 08:58:22,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:58:22,789 INFO L225 Difference]: With dead ends: 177 [2020-09-25 08:58:22,789 INFO L226 Difference]: Without dead ends: 110 [2020-09-25 08:58:22,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2020-09-25 08:58:22,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-09-25 08:58:22,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 107. [2020-09-25 08:58:22,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-09-25 08:58:22,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 122 transitions. [2020-09-25 08:58:22,808 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 122 transitions. Word has length 71 [2020-09-25 08:58:22,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:58:22,809 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 122 transitions. [2020-09-25 08:58:22,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 08:58:22,809 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 122 transitions. [2020-09-25 08:58:22,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 08:58:22,811 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:58:22,811 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:58:22,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:58:22,811 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:58:22,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:58:22,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1230540462, now seen corresponding path program 1 times [2020-09-25 08:58:22,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:58:22,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1721751190] [2020-09-25 08:58:22,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:58:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:22,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:22,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:23,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:25,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:25,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 08:58:25,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:58:25,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2402 [2020-09-25 08:58:25,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:25,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:25,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:58:25,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-25 08:58:25,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 08:58:25,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:25,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:58:25,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:25,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:25,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:25,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 08:58:25,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:25,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 08:58:25,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:25,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:25,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:25,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:25,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:25,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:25,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 08:58:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:25,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:25,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:25,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:25,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:25,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 08:58:25,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:25,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:25,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:25,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:25,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:25,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:25,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:25,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:25,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:25,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:25,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:25,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:25,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:58:25,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:25,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:25,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:25,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:25,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:25,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:25,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:58:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:25,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:25,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:25,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:25,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:25,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 08:58:25,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:25,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:25,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:58:25,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:25,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 08:58:25,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:25,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:25,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:25,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:25,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:25,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:25,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 08:58:25,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:25,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:25,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:58:25,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:25,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 08:58:25,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:25,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 08:58:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:25,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:25,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:25,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:58:25,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:25,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:58:25,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:25,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:25,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:25,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 08:58:25,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:25,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:25,545 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 08:58:25,546 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1721751190] [2020-09-25 08:58:25,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:58:25,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 08:58:25,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790613352] [2020-09-25 08:58:25,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:58:25,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:58:25,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:58:25,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:58:25,549 INFO L87 Difference]: Start difference. First operand 107 states and 122 transitions. Second operand 10 states. [2020-09-25 08:58:25,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:58:25,993 INFO L93 Difference]: Finished difference Result 174 states and 203 transitions. [2020-09-25 08:58:25,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 08:58:25,994 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-09-25 08:58:25,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:58:25,998 INFO L225 Difference]: With dead ends: 174 [2020-09-25 08:58:25,998 INFO L226 Difference]: Without dead ends: 102 [2020-09-25 08:58:26,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2020-09-25 08:58:26,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-09-25 08:58:26,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 99. [2020-09-25 08:58:26,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-25 08:58:26,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 113 transitions. [2020-09-25 08:58:26,023 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 113 transitions. Word has length 71 [2020-09-25 08:58:26,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:58:26,024 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 113 transitions. [2020-09-25 08:58:26,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 08:58:26,024 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 113 transitions. [2020-09-25 08:58:26,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 08:58:26,028 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:58:26,029 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:58:26,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:58:26,029 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:58:26,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:58:26,029 INFO L82 PathProgramCache]: Analyzing trace with hash 983151375, now seen corresponding path program 1 times [2020-09-25 08:58:26,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:58:26,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [747795917] [2020-09-25 08:58:26,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:58:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:26,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:26,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:26,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 08:58:26,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:26,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 851 [2020-09-25 08:58:26,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:26,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:26,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 08:58:26,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 08:58:26,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 08:58:26,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:27,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:58:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:27,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:27,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:27,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 08:58:27,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:27,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 08:58:27,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:27,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:27,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:27,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:27,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:27,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:27,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 08:58:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:27,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:27,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:27,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:27,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:27,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 08:58:27,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:27,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:27,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:58:27,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:27,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 08:58:27,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:27,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:27,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:27,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:27,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:27,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:27,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 08:58:27,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:27,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:27,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:58:27,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:27,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 08:58:27,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:27,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:58:27,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:27,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:27,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:27,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:27,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:27,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 08:58:27,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:27,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:27,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 08:58:27,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 08:58:27,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 08:58:27,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:27,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:27,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:27,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:27,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:27,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:27,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:27,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 08:58:27,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:27,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:27,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:58:27,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 08:58:27,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 08:58:27,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:27,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 08:58:27,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:27,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:27,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:27,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:58:27,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:27,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 08:58:27,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:27,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:27,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:58:27,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:27,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 08:58:27,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:27,610 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 08:58:27,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [747795917] [2020-09-25 08:58:27,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:58:27,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 08:58:27,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920825757] [2020-09-25 08:58:27,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 08:58:27,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:58:27,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 08:58:27,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2020-09-25 08:58:27,613 INFO L87 Difference]: Start difference. First operand 99 states and 113 transitions. Second operand 23 states. [2020-09-25 08:58:29,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:58:29,300 INFO L93 Difference]: Finished difference Result 118 states and 137 transitions. [2020-09-25 08:58:29,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 08:58:29,302 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 71 [2020-09-25 08:58:29,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:58:29,304 INFO L225 Difference]: With dead ends: 118 [2020-09-25 08:58:29,304 INFO L226 Difference]: Without dead ends: 101 [2020-09-25 08:58:29,305 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=188, Invalid=1618, Unknown=0, NotChecked=0, Total=1806 [2020-09-25 08:58:29,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-25 08:58:29,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 89. [2020-09-25 08:58:29,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-09-25 08:58:29,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 98 transitions. [2020-09-25 08:58:29,315 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 98 transitions. Word has length 71 [2020-09-25 08:58:29,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:58:29,315 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 98 transitions. [2020-09-25 08:58:29,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 08:58:29,316 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 98 transitions. [2020-09-25 08:58:29,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 08:58:29,317 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:58:29,317 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:58:29,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 08:58:29,317 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:58:29,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:58:29,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1660138148, now seen corresponding path program 1 times [2020-09-25 08:58:29,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:58:29,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [522958676] [2020-09-25 08:58:29,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:58:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:29,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:29,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:31,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:31,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 08:58:31,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:58:31,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2557 [2020-09-25 08:58:31,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:31,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:31,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:58:31,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-09-25 08:58:31,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 08:58:31,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:31,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:58:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:31,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:31,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:31,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 08:58:31,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:31,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:58:31,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:31,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:31,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:31,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:31,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:31,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:32,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 08:58:32,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:32,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:32,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:32,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:32,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:32,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:58:32,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:32,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:32,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:32,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:32,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:32,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:32,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:32,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:32,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:32,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:32,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:32,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:32,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:58:32,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:32,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:32,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:32,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:32,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:32,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:32,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:58:32,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:32,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:32,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:32,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:32,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:32,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:58:32,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:32,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:32,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:32,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:32,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:32,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:32,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:32,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:32,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:32,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:32,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:32,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:58:32,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:32,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:32,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:32,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:32,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:32,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:32,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 08:58:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:32,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:32,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:32,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 08:58:32,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:32,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:58:32,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:32,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:32,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:32,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:32,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:32,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:32,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 08:58:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:32,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:32,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:32,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:58:32,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:32,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:58:32,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:32,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:32,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:32,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:32,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:32,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:32,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 08:58:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:32,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:32,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:32,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:58:32,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:32,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 08:58:32,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:32,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:32,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:58:32,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:32,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:58:32,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:32,183 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-25 08:58:32,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [522958676] [2020-09-25 08:58:32,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:58:32,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 08:58:32,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500083423] [2020-09-25 08:58:32,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:58:32,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:58:32,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:58:32,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:58:32,185 INFO L87 Difference]: Start difference. First operand 89 states and 98 transitions. Second operand 10 states. [2020-09-25 08:58:32,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:58:32,784 INFO L93 Difference]: Finished difference Result 104 states and 114 transitions. [2020-09-25 08:58:32,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 08:58:32,785 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-09-25 08:58:32,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:58:32,787 INFO L225 Difference]: With dead ends: 104 [2020-09-25 08:58:32,787 INFO L226 Difference]: Without dead ends: 98 [2020-09-25 08:58:32,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2020-09-25 08:58:32,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-09-25 08:58:32,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2020-09-25 08:58:32,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-09-25 08:58:32,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2020-09-25 08:58:32,799 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 85 [2020-09-25 08:58:32,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:58:32,799 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2020-09-25 08:58:32,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 08:58:32,800 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2020-09-25 08:58:32,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 08:58:32,801 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:58:32,801 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:58:32,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 08:58:32,802 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:58:32,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:58:32,803 INFO L82 PathProgramCache]: Analyzing trace with hash 2046230471, now seen corresponding path program 1 times [2020-09-25 08:58:32,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:58:32,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [444010908] [2020-09-25 08:58:32,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:58:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:32,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:33,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:33,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:36,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:36,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:37,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:37,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 08:58:37,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:58:37,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:58:37,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:37,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:37,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 08:58:37,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 08:58:37,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 08:58:37,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:37,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:58:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:37,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:37,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:37,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 08:58:37,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:37,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 08:58:37,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:37,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:37,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:58:37,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:37,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:58:37,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:38,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 08:58:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:38,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:38,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:38,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:38,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:38,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 08:58:38,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:38,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:38,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:58:38,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:38,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:58:38,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:38,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:38,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:38,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:38,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:38,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:38,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:58:38,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:38,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:38,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:38,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:38,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:38,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:38,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 08:58:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:38,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:38,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:38,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:58:38,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:38,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 08:58:38,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:38,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:38,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:58:38,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:38,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:58:38,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:38,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:58:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:38,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:38,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:38,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:58:38,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:38,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:58:38,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:38,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:38,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:38,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:38,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:38,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:38,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 08:58:38,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:38,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:38,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:38,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 08:58:38,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:38,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 08:58:38,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:38,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:38,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:58:38,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 08:58:38,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 08:58:38,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:38,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 08:58:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:38,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:38,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:38,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:58:38,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:38,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 08:58:38,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:38,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:38,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:58:38,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:38,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:58:38,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:38,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 08:58:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:38,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:38,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:38,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:58:38,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:38,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 08:58:38,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:38,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:38,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:58:38,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:38,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:58:38,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:38,288 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-25 08:58:38,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [444010908] [2020-09-25 08:58:38,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:58:38,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 08:58:38,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869304004] [2020-09-25 08:58:38,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 08:58:38,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:58:38,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 08:58:38,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-25 08:58:38,291 INFO L87 Difference]: Start difference. First operand 97 states and 105 transitions. Second operand 12 states. [2020-09-25 08:58:38,782 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2020-09-25 08:58:39,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:58:39,358 INFO L93 Difference]: Finished difference Result 117 states and 125 transitions. [2020-09-25 08:58:39,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 08:58:39,358 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 86 [2020-09-25 08:58:39,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:58:39,360 INFO L225 Difference]: With dead ends: 117 [2020-09-25 08:58:39,361 INFO L226 Difference]: Without dead ends: 109 [2020-09-25 08:58:39,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2020-09-25 08:58:39,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-25 08:58:39,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2020-09-25 08:58:39,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-09-25 08:58:39,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 112 transitions. [2020-09-25 08:58:39,371 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 112 transitions. Word has length 86 [2020-09-25 08:58:39,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:58:39,372 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 112 transitions. [2020-09-25 08:58:39,372 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 08:58:39,372 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 112 transitions. [2020-09-25 08:58:39,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-09-25 08:58:39,374 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:58:39,374 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 08:58:39,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 08:58:39,374 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:58:39,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:58:39,375 INFO L82 PathProgramCache]: Analyzing trace with hash -416868516, now seen corresponding path program 1 times [2020-09-25 08:58:39,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:58:39,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [660044665] [2020-09-25 08:58:39,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:58:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 08:58:39,400 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 08:58:39,400 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 08:58:39,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 08:58:39,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 08:58:39 BoogieIcfgContainer [2020-09-25 08:58:39,431 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 08:58:39,433 INFO L168 Benchmark]: Toolchain (without parser) took 36917.98 ms. Allocated memory was 140.5 MB in the beginning and 483.9 MB in the end (delta: 343.4 MB). Free memory was 101.7 MB in the beginning and 379.9 MB in the end (delta: -278.2 MB). Peak memory consumption was 65.2 MB. Max. memory is 7.1 GB. [2020-09-25 08:58:39,434 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 08:58:39,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.61 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.0 MB in the beginning and 169.0 MB in the end (delta: -68.0 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-09-25 08:58:39,436 INFO L168 Benchmark]: Boogie Preprocessor took 70.40 ms. Allocated memory is still 203.9 MB. Free memory was 169.0 MB in the beginning and 165.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-09-25 08:58:39,436 INFO L168 Benchmark]: RCFGBuilder took 672.42 ms. Allocated memory is still 203.9 MB. Free memory was 165.7 MB in the beginning and 118.8 MB in the end (delta: 46.9 MB). Peak memory consumption was 46.9 MB. Max. memory is 7.1 GB. [2020-09-25 08:58:39,437 INFO L168 Benchmark]: TraceAbstraction took 35476.45 ms. Allocated memory was 203.9 MB in the beginning and 483.9 MB in the end (delta: 280.0 MB). Free memory was 118.2 MB in the beginning and 379.9 MB in the end (delta: -261.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. [2020-09-25 08:58:39,441 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 686.61 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.0 MB in the beginning and 169.0 MB in the end (delta: -68.0 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 70.40 ms. Allocated memory is still 203.9 MB. Free memory was 169.0 MB in the beginning and 165.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 672.42 ms. Allocated memory is still 203.9 MB. Free memory was 165.7 MB in the beginning and 118.8 MB in the end (delta: 46.9 MB). Peak memory consumption was 46.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 35476.45 ms. Allocated memory was 203.9 MB in the beginning and 483.9 MB in the end (delta: 280.0 MB). Free memory was 118.2 MB in the beginning and 379.9 MB in the end (delta: -261.7 MB). Peak memory consumption was 18.2 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: 35.3s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 490 SDtfs, 837 SDslu, 1219 SDs, 0 SdLazy, 3251 SolverSat, 336 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 248 GetRequests, 94 SyntacticMatches, 4 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 3.6s 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, 43 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 28.2s InterpolantComputationTime, 630 NumberOfCodeBlocks, 630 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 528 ConstructedInterpolants, 0 QuantifiedInterpolants, 135084 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 125/155 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...