/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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 12:19:15,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:19:15,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:19:15,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:19:15,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:19:15,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:19:15,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:19:15,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:19:15,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:19:15,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:19:15,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:19:15,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:19:15,059 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:19:15,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:19:15,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:19:15,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:19:15,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:19:15,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:19:15,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:19:15,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:19:15,084 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:19:15,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:19:15,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:19:15,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:19:15,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:19:15,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:19:15,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:19:15,099 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:19:15,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:19:15,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:19:15,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:19:15,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:19:15,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:19:15,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:19:15,105 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:19:15,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:19:15,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:19:15,107 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:19:15,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:19:15,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:19:15,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:19:15,109 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 12:19:15,169 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:19:15,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:19:15,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:19:15,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:19:15,171 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:19:15,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:19:15,172 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:19:15,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:19:15,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:19:15,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:19:15,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:19:15,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:19:15,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:19:15,175 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:19:15,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:19:15,175 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:19:15,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:19:15,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:19:15,176 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:19:15,176 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:19:15,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:19:15,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:19:15,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:19:15,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:19:15,177 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:19:15,177 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:19:15,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:19:15,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:19:15,178 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:19:15,178 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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:19:15,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:19:15,631 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:19:15,635 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:19:15,637 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:19:15,637 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:19:15,639 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.c_1.i [2020-09-25 12:19:15,712 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/55ed3dfa0/afd53559cef74938aed1c574ad5735a8/FLAG80f11b599 [2020-09-25 12:19:16,310 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:19:16,311 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule60_list2.c_1.i [2020-09-25 12:19:16,323 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/55ed3dfa0/afd53559cef74938aed1c574ad5735a8/FLAG80f11b599 [2020-09-25 12:19:16,558 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/55ed3dfa0/afd53559cef74938aed1c574ad5735a8 [2020-09-25 12:19:16,572 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:19:16,576 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:19:16,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:19:16,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:19:16,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:19:16,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:19:16" (1/1) ... [2020-09-25 12:19:16,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a56ccca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:19:16, skipping insertion in model container [2020-09-25 12:19:16,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:19:16" (1/1) ... [2020-09-25 12:19:16,592 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:19:16,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:19:16,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:19:16,999 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:19:17,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:19:17,220 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:19:17,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:19:17 WrapperNode [2020-09-25 12:19:17,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:19:17,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:19:17,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:19:17,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:19:17,245 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:19:17" (1/1) ... [2020-09-25 12:19:17,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:19:17" (1/1) ... [2020-09-25 12:19:17,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:19:17" (1/1) ... [2020-09-25 12:19:17,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:19:17" (1/1) ... [2020-09-25 12:19:17,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:19:17" (1/1) ... [2020-09-25 12:19:17,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:19:17" (1/1) ... [2020-09-25 12:19:17,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:19:17" (1/1) ... [2020-09-25 12:19:17,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:19:17,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:19:17,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:19:17,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:19:17,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:19:17" (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 12:19:17,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:19:17,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:19:17,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-25 12:19:17,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2020-09-25 12:19:17,390 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2020-09-25 12:19:17,390 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-09-25 12:19:17,390 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-09-25 12:19:17,390 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:19:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:19:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-25 12:19:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-09-25 12:19:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-09-25 12:19:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-09-25 12:19:17,392 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-09-25 12:19:17,392 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-09-25 12:19:17,392 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-09-25 12:19:17,392 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-09-25 12:19:17,393 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-09-25 12:19:17,393 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-09-25 12:19:17,393 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-09-25 12:19:17,393 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-09-25 12:19:17,393 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-09-25 12:19:17,394 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-09-25 12:19:17,394 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-09-25 12:19:17,394 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-09-25 12:19:17,394 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-09-25 12:19:17,394 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-09-25 12:19:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-09-25 12:19:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-09-25 12:19:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-09-25 12:19:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-09-25 12:19:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-09-25 12:19:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-09-25 12:19:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-09-25 12:19:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-09-25 12:19:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-09-25 12:19:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-09-25 12:19:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-09-25 12:19:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-09-25 12:19:17,397 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-09-25 12:19:17,397 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-09-25 12:19:17,397 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-09-25 12:19:17,397 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-09-25 12:19:17,397 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-09-25 12:19:17,397 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-09-25 12:19:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-09-25 12:19:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-09-25 12:19:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-09-25 12:19:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 12:19:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-09-25 12:19:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-09-25 12:19:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-09-25 12:19:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-09-25 12:19:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-09-25 12:19:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-09-25 12:19:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-09-25 12:19:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-09-25 12:19:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-09-25 12:19:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-09-25 12:19:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-09-25 12:19:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-09-25 12:19:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-09-25 12:19:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-09-25 12:19:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-09-25 12:19:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-09-25 12:19:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-09-25 12:19:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-09-25 12:19:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-09-25 12:19:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-09-25 12:19:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-09-25 12:19:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-09-25 12:19:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-09-25 12:19:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-09-25 12:19:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-09-25 12:19:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-09-25 12:19:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-09-25 12:19:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-09-25 12:19:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-09-25 12:19:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-09-25 12:19:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-09-25 12:19:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-09-25 12:19:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-09-25 12:19:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-09-25 12:19:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-09-25 12:19:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-09-25 12:19:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-09-25 12:19:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-09-25 12:19:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-09-25 12:19:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-09-25 12:19:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-09-25 12:19:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-09-25 12:19:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-09-25 12:19:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-09-25 12:19:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-09-25 12:19:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-09-25 12:19:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-09-25 12:19:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-09-25 12:19:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-09-25 12:19:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-09-25 12:19:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-09-25 12:19:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-09-25 12:19:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-09-25 12:19:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-09-25 12:19:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-09-25 12:19:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-09-25 12:19:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-09-25 12:19:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-09-25 12:19:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-09-25 12:19:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-09-25 12:19:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-09-25 12:19:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-09-25 12:19:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 12:19:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 12:19:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 12:19:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 12:19:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 12:19:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-09-25 12:19:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 12:19:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-09-25 12:19:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-09-25 12:19:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-09-25 12:19:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-09-25 12:19:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-09-25 12:19:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-09-25 12:19:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-09-25 12:19:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-09-25 12:19:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-09-25 12:19:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-09-25 12:19:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-09-25 12:19:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:19:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2020-09-25 12:19:17,412 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2020-09-25 12:19:17,412 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-09-25 12:19:17,412 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-09-25 12:19:17,412 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:19:17,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:19:17,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 12:19:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 12:19:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:19:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 12:19:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 12:19:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 12:19:18,055 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:19:18,055 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 12:19:18,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:19:18 BoogieIcfgContainer [2020-09-25 12:19:18,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:19:18,068 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:19:18,068 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:19:18,077 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:19:18,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:19:16" (1/3) ... [2020-09-25 12:19:18,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5353ed74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:19:18, skipping insertion in model container [2020-09-25 12:19:18,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:19:17" (2/3) ... [2020-09-25 12:19:18,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5353ed74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:19:18, skipping insertion in model container [2020-09-25 12:19:18,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:19:18" (3/3) ... [2020-09-25 12:19:18,082 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.c_1.i [2020-09-25 12:19:18,098 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:19:18,109 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:19:18,154 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:19:18,184 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:19:18,184 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:19:18,184 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:19:18,184 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:19:18,184 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:19:18,185 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:19:18,185 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:19:18,185 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:19:18,209 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2020-09-25 12:19:18,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-25 12:19:18,217 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:19:18,218 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 12:19:18,219 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:19:18,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:19:18,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1490968618, now seen corresponding path program 1 times [2020-09-25 12:19:18,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:19:18,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [224745996] [2020-09-25 12:19:18,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:19:18,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:18,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:18,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:18,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 12:19:18,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:18,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-09-25 12:19:18,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:18,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:18,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:19:18,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 12:19:18,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:19:18,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 24 [2020-09-25 12:19:18,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:19:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:18,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:19,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:19,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 12:19:19,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:19,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 12:19:19,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:19,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:19,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:19,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:19,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:19,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:19,053 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 12:19:19,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [224745996] [2020-09-25 12:19:19,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:19:19,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 12:19:19,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392138471] [2020-09-25 12:19:19,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:19:19,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:19:19,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:19:19,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:19:19,087 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 7 states. [2020-09-25 12:19:19,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:19:19,543 INFO L93 Difference]: Finished difference Result 128 states and 157 transitions. [2020-09-25 12:19:19,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 12:19:19,545 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-09-25 12:19:19,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:19:19,560 INFO L225 Difference]: With dead ends: 128 [2020-09-25 12:19:19,560 INFO L226 Difference]: Without dead ends: 67 [2020-09-25 12:19:19,566 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 12:19:19,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-09-25 12:19:19,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2020-09-25 12:19:19,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 12:19:19,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2020-09-25 12:19:19,631 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 21 [2020-09-25 12:19:19,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:19:19,631 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2020-09-25 12:19:19,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:19:19,632 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2020-09-25 12:19:19,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 12:19:19,635 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:19:19,635 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 12:19:19,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:19:19,636 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:19:19,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:19:19,636 INFO L82 PathProgramCache]: Analyzing trace with hash -114203518, now seen corresponding path program 1 times [2020-09-25 12:19:19,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:19:19,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [862065415] [2020-09-25 12:19:19,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:19:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:19,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:19,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:20,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:24,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:24,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 12:19:24,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:19:24,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4363 [2020-09-25 12:19:24,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:24,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:24,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 12:19:24,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 12:19:24,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 12:19:24,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:19:24,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:19:24,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:24,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:24,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:24,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 12:19:24,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:24,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 12:19:24,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:24,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:24,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:24,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:24,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:19:24,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:24,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 12:19:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:24,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:24,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:24,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:24,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:24,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 12:19:24,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:24,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:24,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:24,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:24,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:19:24,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:24,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:24,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:24,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:24,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:24,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:24,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:19:24,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:24,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:24,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:24,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:24,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:24,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:24,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 12:19:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:24,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:24,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:24,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:24,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:24,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 12:19:24,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:24,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:24,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:24,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:24,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:19:24,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:24,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:24,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:24,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:24,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:24,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:24,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:19:24,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:24,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:24,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:24,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:24,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:24,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:24,502 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 12:19:24,502 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [862065415] [2020-09-25 12:19:24,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:19:24,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 12:19:24,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386059487] [2020-09-25 12:19:24,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:19:24,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:19:24,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:19:24,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:19:24,506 INFO L87 Difference]: Start difference. First operand 63 states and 69 transitions. Second operand 8 states. [2020-09-25 12:19:25,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:19:25,311 INFO L93 Difference]: Finished difference Result 104 states and 119 transitions. [2020-09-25 12:19:25,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:19:25,312 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-09-25 12:19:25,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:19:25,315 INFO L225 Difference]: With dead ends: 104 [2020-09-25 12:19:25,315 INFO L226 Difference]: Without dead ends: 101 [2020-09-25 12:19:25,316 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 12:19:25,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-25 12:19:25,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 93. [2020-09-25 12:19:25,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-25 12:19:25,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 109 transitions. [2020-09-25 12:19:25,336 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 109 transitions. Word has length 61 [2020-09-25 12:19:25,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:19:25,336 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 109 transitions. [2020-09-25 12:19:25,337 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:19:25,337 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 109 transitions. [2020-09-25 12:19:25,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 12:19:25,339 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:19:25,339 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 12:19:25,340 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:19:25,340 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:19:25,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:19:25,340 INFO L82 PathProgramCache]: Analyzing trace with hash -116378698, now seen corresponding path program 1 times [2020-09-25 12:19:25,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:19:25,341 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [977817803] [2020-09-25 12:19:25,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:19:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:25,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:25,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:25,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:26,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:30,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:30,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 12:19:30,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:19:30,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 12:19:30,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:30,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:30,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 12:19:30,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 12:19:30,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 12:19:30,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:30,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:19:30,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:30,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:30,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:30,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 12:19:30,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:30,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 12:19:30,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:30,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:30,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:30,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:30,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:19:30,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:30,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 12:19:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:30,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:30,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:30,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:30,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:30,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 12:19:30,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:30,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:30,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:30,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:30,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:19:30,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:30,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:30,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:30,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:30,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:30,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:30,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:19:30,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:30,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:30,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:30,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:30,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:30,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:30,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 12:19:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:30,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:30,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:30,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:30,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:30,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 12:19:30,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:30,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:30,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:30,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:30,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:19:30,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:30,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:30,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:30,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:30,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:30,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:30,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:19:30,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:30,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:30,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:30,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:30,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:30,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:30,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 12:19:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:30,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:30,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:30,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:19:30,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:30,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 12:19:30,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:30,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:30,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:19:30,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:19:30,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 12:19:30,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:30,697 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 12:19:30,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [977817803] [2020-09-25 12:19:30,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:19:30,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 12:19:30,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839125587] [2020-09-25 12:19:30,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 12:19:30,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:19:30,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 12:19:30,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:19:30,700 INFO L87 Difference]: Start difference. First operand 93 states and 109 transitions. Second operand 9 states. [2020-09-25 12:19:31,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:19:31,333 INFO L93 Difference]: Finished difference Result 112 states and 127 transitions. [2020-09-25 12:19:31,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 12:19:31,334 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-09-25 12:19:31,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:19:31,336 INFO L225 Difference]: With dead ends: 112 [2020-09-25 12:19:31,336 INFO L226 Difference]: Without dead ends: 108 [2020-09-25 12:19:31,337 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 12:19:31,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-09-25 12:19:31,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 101. [2020-09-25 12:19:31,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-25 12:19:31,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 116 transitions. [2020-09-25 12:19:31,354 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 116 transitions. Word has length 70 [2020-09-25 12:19:31,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:19:31,354 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 116 transitions. [2020-09-25 12:19:31,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 12:19:31,354 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2020-09-25 12:19:31,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 12:19:31,356 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:19:31,356 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 12:19:31,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:19:31,356 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:19:31,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:19:31,357 INFO L82 PathProgramCache]: Analyzing trace with hash 2087874581, now seen corresponding path program 1 times [2020-09-25 12:19:31,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:19:31,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2122785897] [2020-09-25 12:19:31,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:19:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:31,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:31,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:31,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:32,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:35,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:35,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 12:19:35,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:19:35,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3640 [2020-09-25 12:19:35,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:35,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:35,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 12:19:35,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 12:19:35,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 12:19:35,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:35,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:19:35,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:35,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:35,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:35,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 12:19:35,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:35,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 12:19:35,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:35,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:35,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:35,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:35,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:19:35,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:35,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 12:19:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:35,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:35,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:35,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:35,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:35,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 12:19:35,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:35,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:35,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:35,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:35,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:19:35,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:35,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:35,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:35,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:35,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:35,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:35,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:35,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:19:35,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:35,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:35,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:35,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:35,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:35,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:19:35,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 12:19:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:35,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:35,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:35,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:35,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:35,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 12:19:35,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:35,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:35,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:19:35,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:35,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:19:35,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:35,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:35,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:35,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:35,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:35,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:35,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:35,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 12:19:35,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:35,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:35,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:19:35,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:35,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 12:19:35,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:35,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 12:19:35,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:35,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:35,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:35,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:19:35,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:35,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 12:19:35,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:35,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:35,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:19:35,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:19:35,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:19:35,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:35,561 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 12:19:35,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2122785897] [2020-09-25 12:19:35,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:19:35,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 12:19:35,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478182038] [2020-09-25 12:19:35,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 12:19:35,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:19:35,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 12:19:35,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-09-25 12:19:35,564 INFO L87 Difference]: Start difference. First operand 101 states and 116 transitions. Second operand 13 states. [2020-09-25 12:19:36,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:19:36,680 INFO L93 Difference]: Finished difference Result 176 states and 204 transitions. [2020-09-25 12:19:36,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 12:19:36,680 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 71 [2020-09-25 12:19:36,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:19:36,682 INFO L225 Difference]: With dead ends: 176 [2020-09-25 12:19:36,682 INFO L226 Difference]: Without dead ends: 112 [2020-09-25 12:19:36,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2020-09-25 12:19:36,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-25 12:19:36,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 107. [2020-09-25 12:19:36,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-09-25 12:19:36,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 122 transitions. [2020-09-25 12:19:36,715 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 122 transitions. Word has length 71 [2020-09-25 12:19:36,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:19:36,718 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 122 transitions. [2020-09-25 12:19:36,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 12:19:36,718 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 122 transitions. [2020-09-25 12:19:36,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 12:19:36,719 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:19:36,720 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 12:19:36,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:19:36,720 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:19:36,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:19:36,720 INFO L82 PathProgramCache]: Analyzing trace with hash 6599122, now seen corresponding path program 1 times [2020-09-25 12:19:36,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:19:36,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [309733957] [2020-09-25 12:19:36,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:19:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:36,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:36,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:37,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:40,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:40,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 12:19:40,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:19:40,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3780 [2020-09-25 12:19:40,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:40,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:40,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 12:19:40,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 12:19:40,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 12:19:40,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:40,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:19:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:40,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:40,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:40,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 12:19:40,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:40,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 12:19:40,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:40,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:40,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:40,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:40,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:19:40,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:40,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 12:19:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:40,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:40,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:40,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:40,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:40,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 12:19:40,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:40,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:40,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:19:40,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:40,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:19:40,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:40,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:40,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:40,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:40,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:40,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:40,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 12:19:40,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:40,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:40,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:19:40,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:40,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 12:19:40,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:40,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 12:19:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:40,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:41,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:41,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:41,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:41,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 12:19:41,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:41,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:41,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:41,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:41,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:19:41,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:41,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:41,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:41,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:41,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:41,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:41,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:41,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:19:41,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:41,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:41,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:41,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:41,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:41,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:41,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 12:19:41,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:41,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:41,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:41,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:19:41,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:41,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 12:19:41,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:41,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:41,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:19:41,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:19:41,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:19:41,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:41,144 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 12:19:41,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [309733957] [2020-09-25 12:19:41,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:19:41,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 12:19:41,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755910603] [2020-09-25 12:19:41,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 12:19:41,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:19:41,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 12:19:41,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2020-09-25 12:19:41,148 INFO L87 Difference]: Start difference. First operand 107 states and 122 transitions. Second operand 16 states. [2020-09-25 12:19:42,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:19:42,805 INFO L93 Difference]: Finished difference Result 184 states and 216 transitions. [2020-09-25 12:19:42,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-25 12:19:42,806 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 71 [2020-09-25 12:19:42,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:19:42,809 INFO L225 Difference]: With dead ends: 184 [2020-09-25 12:19:42,809 INFO L226 Difference]: Without dead ends: 109 [2020-09-25 12:19:42,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=160, Invalid=896, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 12:19:42,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-25 12:19:42,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 99. [2020-09-25 12:19:42,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-25 12:19:42,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 113 transitions. [2020-09-25 12:19:42,831 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 113 transitions. Word has length 71 [2020-09-25 12:19:42,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:19:42,832 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 113 transitions. [2020-09-25 12:19:42,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 12:19:42,832 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 113 transitions. [2020-09-25 12:19:42,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 12:19:42,833 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:19:42,833 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 12:19:42,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 12:19:42,834 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:19:42,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:19:42,834 INFO L82 PathProgramCache]: Analyzing trace with hash 983151375, now seen corresponding path program 1 times [2020-09-25 12:19:42,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:19:42,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1005262533] [2020-09-25 12:19:42,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:19:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:42,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:43,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:43,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 12:19:43,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:43,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 796 [2020-09-25 12:19:43,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:43,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:43,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 12:19:43,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 12:19:43,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 12:19:43,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:43,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:19:43,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:43,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:43,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:43,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 12:19:43,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:43,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 12:19:43,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:43,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:43,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:43,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:43,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:43,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:43,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 12:19:43,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:43,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:43,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:43,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:43,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:43,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 12:19:43,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:43,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:43,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:19:43,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:43,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 12:19:43,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:43,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:43,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:43,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:43,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:43,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:43,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:43,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 12:19:43,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:43,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:43,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:19:43,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:43,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 12:19:43,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:43,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 12:19:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:43,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:44,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:44,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:44,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:44,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 12:19:44,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:44,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:44,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 12:19:44,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:19:44,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 12:19:44,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:44,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:44,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:44,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:44,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:44,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:44,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 12:19:44,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:44,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:44,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:19:44,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:19:44,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 12:19:44,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:44,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 12:19:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:44,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:44,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:44,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:19:44,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:44,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 12:19:44,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:44,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:44,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:19:44,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:44,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 12:19:44,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:44,311 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 12:19:44,311 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1005262533] [2020-09-25 12:19:44,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:19:44,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 12:19:44,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393523894] [2020-09-25 12:19:44,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 12:19:44,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:19:44,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 12:19:44,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2020-09-25 12:19:44,313 INFO L87 Difference]: Start difference. First operand 99 states and 113 transitions. Second operand 23 states. [2020-09-25 12:19:45,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:19:45,979 INFO L93 Difference]: Finished difference Result 118 states and 137 transitions. [2020-09-25 12:19:45,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 12:19:45,980 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 71 [2020-09-25 12:19:45,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:19:45,983 INFO L225 Difference]: With dead ends: 118 [2020-09-25 12:19:45,983 INFO L226 Difference]: Without dead ends: 101 [2020-09-25 12:19:45,984 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 12:19:45,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-25 12:19:45,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 89. [2020-09-25 12:19:45,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-09-25 12:19:45,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 98 transitions. [2020-09-25 12:19:45,996 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 98 transitions. Word has length 71 [2020-09-25 12:19:45,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:19:45,997 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 98 transitions. [2020-09-25 12:19:45,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 12:19:45,997 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 98 transitions. [2020-09-25 12:19:45,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 12:19:45,999 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:19:45,999 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 12:19:45,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 12:19:46,000 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:19:46,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:19:46,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1660138148, now seen corresponding path program 1 times [2020-09-25 12:19:46,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:19:46,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [59931993] [2020-09-25 12:19:46,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:19:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:46,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:46,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:48,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:48,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 12:19:48,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:19:48,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2398 [2020-09-25 12:19:48,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:48,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:48,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 12:19:48,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 12:19:48,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 12:19:48,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:48,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:19:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:48,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:48,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:48,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 12:19:48,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:48,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:19:48,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:48,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:48,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:48,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:48,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:48,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:48,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 12:19:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:48,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:48,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:48,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:48,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:48,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 12:19:48,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:48,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:48,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:19:48,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:48,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 12:19:48,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:48,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:48,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:48,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:48,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:48,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:48,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:48,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 12:19:48,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:48,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:48,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:19:48,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:48,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 12:19:48,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:48,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 12:19:48,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:48,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:48,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:48,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:48,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:48,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 12:19:48,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:48,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:48,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 12:19:48,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:19:48,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 12:19:48,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:48,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:48,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:48,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:48,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:48,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:48,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 12:19:48,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:48,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:48,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:19:48,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:19:48,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 12:19:48,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:48,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 12:19:48,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:48,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:49,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:49,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:19:49,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:49,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:19:49,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:49,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:49,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:49,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:49,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 12:19:49,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:49,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 12:19:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:49,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:49,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:49,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:19:49,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:49,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 12:19:49,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:49,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:49,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:19:49,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:49,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 12:19:49,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:49,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 12:19:49,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:49,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:49,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:49,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:19:49,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:49,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 12:19:49,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:49,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:49,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:19:49,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:19:49,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:19:49,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:49,139 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 12:19:49,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [59931993] [2020-09-25 12:19:49,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:19:49,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-25 12:19:49,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960607071] [2020-09-25 12:19:49,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-25 12:19:49,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:19:49,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-25 12:19:49,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2020-09-25 12:19:49,143 INFO L87 Difference]: Start difference. First operand 89 states and 98 transitions. Second operand 24 states. [2020-09-25 12:19:50,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:19:50,646 INFO L93 Difference]: Finished difference Result 104 states and 114 transitions. [2020-09-25 12:19:50,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 12:19:50,647 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 85 [2020-09-25 12:19:50,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:19:50,648 INFO L225 Difference]: With dead ends: 104 [2020-09-25 12:19:50,649 INFO L226 Difference]: Without dead ends: 99 [2020-09-25 12:19:50,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=210, Invalid=1682, Unknown=0, NotChecked=0, Total=1892 [2020-09-25 12:19:50,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-09-25 12:19:50,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2020-09-25 12:19:50,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-25 12:19:50,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 107 transitions. [2020-09-25 12:19:50,661 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 107 transitions. Word has length 85 [2020-09-25 12:19:50,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:19:50,661 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 107 transitions. [2020-09-25 12:19:50,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-25 12:19:50,662 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 107 transitions. [2020-09-25 12:19:50,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 12:19:50,663 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:19:50,664 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 12:19:50,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 12:19:50,664 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:19:50,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:19:50,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1173492322, now seen corresponding path program 2 times [2020-09-25 12:19:50,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:19:50,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1549779414] [2020-09-25 12:19:50,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:19:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:50,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:50,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:52,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:52,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 12:19:52,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:19:52,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1338 [2020-09-25 12:19:52,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:52,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:52,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:19:52,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-25 12:19:52,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 12:19:52,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:52,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:19:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:52,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:52,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:52,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 12:19:52,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:52,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:19:52,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:52,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:52,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:52,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:52,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:52,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:52,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 12:19:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:52,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:52,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:52,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:52,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:52,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:19:52,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:52,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:52,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:52,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:52,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:52,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:52,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:52,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:52,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:52,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:52,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:52,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:19:52,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:52,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:52,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:52,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:52,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:52,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:52,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 12:19:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:52,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:52,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:52,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:52,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:52,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:19:52,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:52,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:52,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:52,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:52,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:52,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:52,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:52,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:52,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:52,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:52,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:52,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:19:52,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:52,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:52,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:52,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:52,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:52,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:52,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 12:19:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:52,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:52,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:52,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:19:52,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:52,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 12:19:52,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:52,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:52,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:19:52,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:52,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 12:19:52,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:52,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 12:19:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:52,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:52,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:52,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:19:52,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:52,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 12:19:52,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:52,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:52,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:19:52,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:19:52,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 12:19:52,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:52,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 12:19:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:52,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:52,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:52,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:19:52,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:52,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 12:19:52,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:52,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:52,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:19:52,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:19:52,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:19:52,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:52,320 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-25 12:19:52,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1549779414] [2020-09-25 12:19:52,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:19:52,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 12:19:52,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125072074] [2020-09-25 12:19:52,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 12:19:52,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:19:52,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 12:19:52,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:19:52,322 INFO L87 Difference]: Start difference. First operand 98 states and 107 transitions. Second operand 10 states. [2020-09-25 12:19:52,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:19:52,912 INFO L93 Difference]: Finished difference Result 113 states and 121 transitions. [2020-09-25 12:19:52,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:19:52,912 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-09-25 12:19:52,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:19:52,913 INFO L225 Difference]: With dead ends: 113 [2020-09-25 12:19:52,914 INFO L226 Difference]: Without dead ends: 97 [2020-09-25 12:19:52,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2020-09-25 12:19:52,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-09-25 12:19:52,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-09-25 12:19:52,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-09-25 12:19:52,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2020-09-25 12:19:52,925 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 85 [2020-09-25 12:19:52,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:19:52,925 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2020-09-25 12:19:52,925 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 12:19:52,925 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2020-09-25 12:19:52,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 12:19:52,927 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:19:52,927 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 12:19:52,927 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 12:19:52,927 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:19:52,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:19:52,928 INFO L82 PathProgramCache]: Analyzing trace with hash 2046230471, now seen corresponding path program 1 times [2020-09-25 12:19:52,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:19:52,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [342460005] [2020-09-25 12:19:52,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:19:52,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:52,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:53,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:53,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:55,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:56,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:57,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:57,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 12:19:57,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:19:57,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 12:19:57,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:57,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:57,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 12:19:57,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 12:19:57,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 12:19:57,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:58,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:19:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:58,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:58,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:58,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 12:19:58,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:58,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 12:19:58,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:58,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:58,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:58,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:58,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:19:58,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:58,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 12:19:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:58,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:58,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:58,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:58,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:58,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 12:19:58,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:58,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:58,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:58,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:58,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:19:58,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:58,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:58,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:58,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:58,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:58,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:58,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:58,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:19:58,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:58,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:58,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:58,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:58,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:58,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:58,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 12:19:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:58,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:58,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:58,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:58,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:58,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 12:19:58,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:58,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:58,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:58,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:58,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:19:58,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:58,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:58,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:58,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:58,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:58,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:58,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:58,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:19:58,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:58,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:58,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:58,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:58,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:58,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:58,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 12:19:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:58,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:58,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:58,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:19:58,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:58,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 12:19:58,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:58,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:58,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:19:58,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:19:58,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 12:19:58,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:58,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 12:19:58,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:58,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:58,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:58,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:19:58,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:58,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 12:19:58,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:58,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:58,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:58,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:58,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 12:19:58,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:58,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 12:19:58,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:58,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:58,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:58,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:19:58,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:58,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 12:19:58,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:58,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:58,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:19:58,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:58,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:19:58,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:58,424 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 12:19:58,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [342460005] [2020-09-25 12:19:58,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:19:58,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 12:19:58,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060543615] [2020-09-25 12:19:58,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 12:19:58,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:19:58,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 12:19:58,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-25 12:19:58,427 INFO L87 Difference]: Start difference. First operand 97 states and 105 transitions. Second operand 12 states. [2020-09-25 12:19:59,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:19:59,528 INFO L93 Difference]: Finished difference Result 117 states and 125 transitions. [2020-09-25 12:19:59,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 12:19:59,528 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 86 [2020-09-25 12:19:59,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:19:59,530 INFO L225 Difference]: With dead ends: 117 [2020-09-25 12:19:59,531 INFO L226 Difference]: Without dead ends: 109 [2020-09-25 12:19:59,532 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2020-09-25 12:19:59,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-25 12:19:59,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2020-09-25 12:19:59,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-09-25 12:19:59,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 112 transitions. [2020-09-25 12:19:59,543 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 112 transitions. Word has length 86 [2020-09-25 12:19:59,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:19:59,543 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 112 transitions. [2020-09-25 12:19:59,543 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 12:19:59,543 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 112 transitions. [2020-09-25 12:19:59,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-09-25 12:19:59,545 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:19:59,545 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 12:19:59,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 12:19:59,545 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:19:59,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:19:59,546 INFO L82 PathProgramCache]: Analyzing trace with hash -416868516, now seen corresponding path program 1 times [2020-09-25 12:19:59,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:19:59,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1662645105] [2020-09-25 12:19:59,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:19:59,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 12:19:59,570 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 12:19:59,571 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 12:19:59,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 12:19:59,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:19:59 BoogieIcfgContainer [2020-09-25 12:19:59,600 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 12:19:59,604 INFO L168 Benchmark]: Toolchain (without parser) took 43028.94 ms. Allocated memory was 140.5 MB in the beginning and 493.4 MB in the end (delta: 352.8 MB). Free memory was 102.6 MB in the beginning and 175.0 MB in the end (delta: -72.4 MB). Peak memory consumption was 280.5 MB. Max. memory is 7.1 GB. [2020-09-25 12:19:59,604 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 12:19:59,605 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.64 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 102.0 MB in the beginning and 170.4 MB in the end (delta: -68.4 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2020-09-25 12:19:59,606 INFO L168 Benchmark]: Boogie Preprocessor took 65.61 ms. Allocated memory is still 205.0 MB. Free memory was 170.4 MB in the beginning and 167.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-09-25 12:19:59,607 INFO L168 Benchmark]: RCFGBuilder took 770.75 ms. Allocated memory is still 205.0 MB. Free memory was 167.8 MB in the beginning and 120.7 MB in the end (delta: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 7.1 GB. [2020-09-25 12:19:59,608 INFO L168 Benchmark]: TraceAbstraction took 41532.10 ms. Allocated memory was 205.0 MB in the beginning and 493.4 MB in the end (delta: 288.4 MB). Free memory was 120.0 MB in the beginning and 175.0 MB in the end (delta: -55.0 MB). Peak memory consumption was 233.4 MB. Max. memory is 7.1 GB. [2020-09-25 12:19:59,612 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 648.64 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 102.0 MB in the beginning and 170.4 MB in the end (delta: -68.4 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 65.61 ms. Allocated memory is still 205.0 MB. Free memory was 170.4 MB in the beginning and 167.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 770.75 ms. Allocated memory is still 205.0 MB. Free memory was 167.8 MB in the beginning and 120.7 MB in the end (delta: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 41532.10 ms. Allocated memory was 205.0 MB in the beginning and 493.4 MB in the end (delta: 288.4 MB). Free memory was 120.0 MB in the beginning and 175.0 MB in the end (delta: -55.0 MB). Peak memory consumption was 233.4 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: 41.3s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 555 SDtfs, 972 SDslu, 1592 SDs, 0 SdLazy, 5324 SolverSat, 395 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 113 SyntacticMatches, 6 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 784 ImplicationChecksByTransitivity, 5.7s 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, 9 MinimizatonAttempts, 52 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 30.9s InterpolantComputationTime, 715 NumberOfCodeBlocks, 715 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 612 ConstructedInterpolants, 0 QuantifiedInterpolants, 189356 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 138/185 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...