/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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 07:49:01,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:49:01,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:49:01,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:49:01,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:49:01,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:49:01,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:49:01,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:49:01,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:49:01,178 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:49:01,179 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:49:01,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:49:01,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:49:01,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:49:01,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:49:01,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:49:01,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:49:01,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:49:01,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:49:01,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:49:01,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:49:01,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:49:01,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:49:01,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:49:01,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:49:01,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:49:01,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:49:01,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:49:01,229 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:49:01,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:49:01,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:49:01,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:49:01,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:49:01,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:49:01,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:49:01,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:49:01,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:49:01,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:49:01,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:49:01,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:49:01,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:49:01,243 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 07:49:01,288 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:49:01,289 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:49:01,290 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:49:01,290 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:49:01,291 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:49:01,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:49:01,291 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:49:01,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:49:01,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:49:01,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:49:01,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:49:01,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:49:01,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:49:01,292 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:49:01,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:49:01,293 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:49:01,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:49:01,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:49:01,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:49:01,294 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:49:01,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:49:01,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:49:01,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:49:01,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:49:01,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:49:01,295 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:49:01,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:49:01,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:49:01,296 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:49:01,296 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:49:01,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:49:01,762 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:49:01,767 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:49:01,769 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:49:01,769 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:49:01,770 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.c_1.i [2020-09-25 07:49:01,852 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89a5808a8/2fce224d47344ebda50ef4bd3765ac4a/FLAG0dbeffac7 [2020-09-25 07:49:02,515 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:49:02,517 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule60_list2.c_1.i [2020-09-25 07:49:02,544 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89a5808a8/2fce224d47344ebda50ef4bd3765ac4a/FLAG0dbeffac7 [2020-09-25 07:49:02,764 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89a5808a8/2fce224d47344ebda50ef4bd3765ac4a [2020-09-25 07:49:02,777 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:49:02,783 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:49:02,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:49:02,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:49:02,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:49:02,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:49:02" (1/1) ... [2020-09-25 07:49:02,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e08502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:02, skipping insertion in model container [2020-09-25 07:49:02,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:49:02" (1/1) ... [2020-09-25 07:49:02,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:49:02,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:49:03,234 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:49:03,248 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:49:03,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:49:03,471 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:49:03,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:03 WrapperNode [2020-09-25 07:49:03,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:49:03,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:49:03,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:49:03,473 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:49:03,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:03" (1/1) ... [2020-09-25 07:49:03,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:03" (1/1) ... [2020-09-25 07:49:03,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:03" (1/1) ... [2020-09-25 07:49:03,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:03" (1/1) ... [2020-09-25 07:49:03,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:03" (1/1) ... [2020-09-25 07:49:03,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:03" (1/1) ... [2020-09-25 07:49:03,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:03" (1/1) ... [2020-09-25 07:49:03,537 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:49:03,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:49:03,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:49:03,538 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:49:03,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:03" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:49:03,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:49:03,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:49:03,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-25 07:49:03,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2020-09-25 07:49:03,623 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2020-09-25 07:49:03,623 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-09-25 07:49:03,624 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-09-25 07:49:03,625 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:49:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:49:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-25 07:49:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-09-25 07:49:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-09-25 07:49:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-09-25 07:49:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-09-25 07:49:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-09-25 07:49:03,627 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-09-25 07:49:03,627 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-09-25 07:49:03,627 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-09-25 07:49:03,627 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-09-25 07:49:03,628 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-09-25 07:49:03,628 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-09-25 07:49:03,628 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-09-25 07:49:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-09-25 07:49:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-09-25 07:49:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-09-25 07:49:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-09-25 07:49:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-09-25 07:49:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-09-25 07:49:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-09-25 07:49:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-09-25 07:49:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-09-25 07:49:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-09-25 07:49:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-09-25 07:49:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-09-25 07:49:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-09-25 07:49:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-09-25 07:49:03,632 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-09-25 07:49:03,632 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-09-25 07:49:03,632 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-09-25 07:49:03,632 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-09-25 07:49:03,632 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-09-25 07:49:03,632 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-09-25 07:49:03,632 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-09-25 07:49:03,633 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-09-25 07:49:03,633 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-09-25 07:49:03,633 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-09-25 07:49:03,633 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-09-25 07:49:03,633 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-09-25 07:49:03,633 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:49:03,634 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-09-25 07:49:03,634 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-09-25 07:49:03,634 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-09-25 07:49:03,635 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-09-25 07:49:03,635 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-09-25 07:49:03,635 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-09-25 07:49:03,635 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-09-25 07:49:03,635 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-09-25 07:49:03,635 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-09-25 07:49:03,636 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-09-25 07:49:03,636 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-09-25 07:49:03,636 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-09-25 07:49:03,636 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-09-25 07:49:03,636 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-09-25 07:49:03,637 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-09-25 07:49:03,637 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-09-25 07:49:03,637 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-09-25 07:49:03,637 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-09-25 07:49:03,638 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-09-25 07:49:03,638 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-09-25 07:49:03,639 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-09-25 07:49:03,639 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-09-25 07:49:03,641 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-09-25 07:49:03,641 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-09-25 07:49:03,641 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-09-25 07:49:03,641 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-09-25 07:49:03,641 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-09-25 07:49:03,641 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-09-25 07:49:03,642 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-09-25 07:49:03,642 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-09-25 07:49:03,642 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-09-25 07:49:03,642 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-09-25 07:49:03,642 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-09-25 07:49:03,643 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-09-25 07:49:03,643 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-09-25 07:49:03,644 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-09-25 07:49:03,644 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-09-25 07:49:03,644 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-09-25 07:49:03,644 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-09-25 07:49:03,644 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-09-25 07:49:03,644 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-09-25 07:49:03,644 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-09-25 07:49:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-09-25 07:49:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-09-25 07:49:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-09-25 07:49:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-09-25 07:49:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-09-25 07:49:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-09-25 07:49:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-09-25 07:49:03,646 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-09-25 07:49:03,646 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-09-25 07:49:03,646 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-09-25 07:49:03,646 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-09-25 07:49:03,646 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-09-25 07:49:03,647 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-09-25 07:49:03,647 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-09-25 07:49:03,647 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-09-25 07:49:03,647 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-09-25 07:49:03,648 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-09-25 07:49:03,648 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-09-25 07:49:03,648 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-09-25 07:49:03,648 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-09-25 07:49:03,648 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:49:03,648 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 07:49:03,648 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 07:49:03,649 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:49:03,649 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 07:49:03,649 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-09-25 07:49:03,650 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 07:49:03,650 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-09-25 07:49:03,651 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-09-25 07:49:03,651 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-09-25 07:49:03,651 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-09-25 07:49:03,651 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-09-25 07:49:03,652 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-09-25 07:49:03,652 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-09-25 07:49:03,653 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-09-25 07:49:03,653 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-09-25 07:49:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-09-25 07:49:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-09-25 07:49:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:49:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2020-09-25 07:49:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2020-09-25 07:49:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-09-25 07:49:03,659 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-09-25 07:49:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:49:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:49:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:49:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 07:49:03,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:49:03,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:49:03,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:49:03,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:49:04,287 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:49:04,287 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 07:49:04,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:49:04 BoogieIcfgContainer [2020-09-25 07:49:04,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:49:04,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:49:04,294 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:49:04,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:49:04,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:49:02" (1/3) ... [2020-09-25 07:49:04,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b1e2df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:49:04, skipping insertion in model container [2020-09-25 07:49:04,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:03" (2/3) ... [2020-09-25 07:49:04,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b1e2df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:49:04, skipping insertion in model container [2020-09-25 07:49:04,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:49:04" (3/3) ... [2020-09-25 07:49:04,302 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.c_1.i [2020-09-25 07:49:04,314 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:49:04,325 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:49:04,348 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:49:04,381 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:49:04,381 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:49:04,381 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:49:04,381 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:49:04,381 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:49:04,381 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:49:04,382 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:49:04,382 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:49:04,403 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2020-09-25 07:49:04,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-25 07:49:04,411 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:49:04,412 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 07:49:04,413 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:49:04,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:49:04,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1490968618, now seen corresponding path program 1 times [2020-09-25 07:49:04,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:49:04,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471736168] [2020-09-25 07:49:04,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:49:04,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:04,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:04,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:04,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 07:49:04,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:04,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 362 [2020-09-25 07:49:04,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:04,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:04,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:49:04,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 07:49:04,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:49:04,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 07:49:05,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:49:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:05,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:05,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:05,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:49:05,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:05,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 07:49:05,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:05,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:05,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:05,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:05,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:05,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:05,187 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 07:49:05,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471736168] [2020-09-25 07:49:05,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:49:05,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:49:05,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388571924] [2020-09-25 07:49:05,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:49:05,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:49:05,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:49:05,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:49:05,219 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 7 states. [2020-09-25 07:49:05,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:49:05,667 INFO L93 Difference]: Finished difference Result 128 states and 157 transitions. [2020-09-25 07:49:05,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 07:49:05,669 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-09-25 07:49:05,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:49:05,684 INFO L225 Difference]: With dead ends: 128 [2020-09-25 07:49:05,684 INFO L226 Difference]: Without dead ends: 67 [2020-09-25 07:49:05,689 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 07:49:05,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-09-25 07:49:05,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2020-09-25 07:49:05,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 07:49:05,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2020-09-25 07:49:05,748 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 21 [2020-09-25 07:49:05,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:49:05,748 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2020-09-25 07:49:05,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:49:05,749 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2020-09-25 07:49:05,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 07:49:05,752 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:49:05,752 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 07:49:05,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:49:05,753 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:49:05,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:49:05,754 INFO L82 PathProgramCache]: Analyzing trace with hash -114203518, now seen corresponding path program 1 times [2020-09-25 07:49:05,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:49:05,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [926167703] [2020-09-25 07:49:05,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:49:05,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:05,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:05,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:06,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:10,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:10,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 07:49:10,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:49:10,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4330 [2020-09-25 07:49:10,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:10,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:10,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 07:49:10,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 07:49:10,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 07:49:10,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:49:10,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:49:10,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:10,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:10,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:10,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:49:10,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:10,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 07:49:10,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:10,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:10,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:49:10,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:10,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:49:10,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:10,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 07:49:10,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:10,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:10,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:10,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:10,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:10,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 07:49:10,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:10,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:10,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:49:10,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:10,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:49:10,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:10,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:10,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:10,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:10,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:10,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:10,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:49:10,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:10,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:10,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:10,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:10,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:10,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:10,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 07:49:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:10,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:10,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:10,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:10,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:10,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 07:49:10,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:10,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:10,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:49:10,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:10,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:49:10,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:10,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:10,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:10,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:10,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:10,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:10,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:10,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:49:10,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:10,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:10,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:10,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:10,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:10,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:10,664 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 07:49:10,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [926167703] [2020-09-25 07:49:10,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:49:10,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 07:49:10,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275867065] [2020-09-25 07:49:10,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:49:10,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:49:10,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:49:10,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:49:10,669 INFO L87 Difference]: Start difference. First operand 63 states and 69 transitions. Second operand 8 states. [2020-09-25 07:49:11,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:49:11,347 INFO L93 Difference]: Finished difference Result 104 states and 119 transitions. [2020-09-25 07:49:11,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 07:49:11,348 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-09-25 07:49:11,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:49:11,351 INFO L225 Difference]: With dead ends: 104 [2020-09-25 07:49:11,351 INFO L226 Difference]: Without dead ends: 101 [2020-09-25 07:49:11,352 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 07:49:11,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-25 07:49:11,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 93. [2020-09-25 07:49:11,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-25 07:49:11,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 109 transitions. [2020-09-25 07:49:11,372 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 109 transitions. Word has length 61 [2020-09-25 07:49:11,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:49:11,373 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 109 transitions. [2020-09-25 07:49:11,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:49:11,373 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 109 transitions. [2020-09-25 07:49:11,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 07:49:11,375 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:49:11,376 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 07:49:11,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:49:11,376 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:49:11,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:49:11,377 INFO L82 PathProgramCache]: Analyzing trace with hash -116378698, now seen corresponding path program 1 times [2020-09-25 07:49:11,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:49:11,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [463347901] [2020-09-25 07:49:11,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:49:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:11,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:11,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:11,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:13,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:16,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:16,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 07:49:16,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:49:16,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 07:49:16,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:16,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:16,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:49:16,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 07:49:16,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 07:49:16,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:16,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:49:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:16,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:16,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:16,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:49:16,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:16,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:49:16,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:16,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:16,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:16,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:16,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:16,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:16,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 07:49:16,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:16,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:16,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:16,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:16,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:16,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 07:49:16,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:16,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:16,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:49:16,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:16,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 07:49:16,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:16,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:16,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:16,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:16,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:16,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:16,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 07:49:16,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:16,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:16,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:49:16,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:16,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 07:49:16,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:16,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 07:49:16,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:16,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:16,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:16,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:16,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:16,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 07:49:16,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:16,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:16,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:49:16,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:16,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:49:16,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:16,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:16,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:16,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:16,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:16,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:16,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:49:16,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:16,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:16,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:16,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:16,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:16,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:16,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:49:16,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:16,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:16,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:16,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:49:16,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:16,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:49:16,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:16,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:16,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:16,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:49:16,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:16,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:16,794 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 07:49:16,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [463347901] [2020-09-25 07:49:16,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:49:16,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 07:49:16,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542912481] [2020-09-25 07:49:16,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:49:16,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:49:16,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:49:16,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:49:16,797 INFO L87 Difference]: Start difference. First operand 93 states and 109 transitions. Second operand 10 states. [2020-09-25 07:49:17,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:49:17,360 INFO L93 Difference]: Finished difference Result 162 states and 197 transitions. [2020-09-25 07:49:17,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 07:49:17,361 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 70 [2020-09-25 07:49:17,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:49:17,364 INFO L225 Difference]: With dead ends: 162 [2020-09-25 07:49:17,364 INFO L226 Difference]: Without dead ends: 103 [2020-09-25 07:49:17,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2020-09-25 07:49:17,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-09-25 07:49:17,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 99. [2020-09-25 07:49:17,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-25 07:49:17,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 115 transitions. [2020-09-25 07:49:17,383 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 115 transitions. Word has length 70 [2020-09-25 07:49:17,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:49:17,383 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 115 transitions. [2020-09-25 07:49:17,383 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:49:17,384 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 115 transitions. [2020-09-25 07:49:17,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 07:49:17,388 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:49:17,388 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 07:49:17,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:49:17,389 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:49:17,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:49:17,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1814582916, now seen corresponding path program 1 times [2020-09-25 07:49:17,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:49:17,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [652114326] [2020-09-25 07:49:17,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:49:17,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:17,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:17,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:18,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:18,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 07:49:18,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:49:18,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1280 [2020-09-25 07:49:18,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:18,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:18,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 07:49:18,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 07:49:18,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 07:49:18,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:18,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:49:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:18,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:18,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:18,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:49:18,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:18,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 07:49:18,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:18,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:18,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:49:18,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:18,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:49:18,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:18,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 07:49:18,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:18,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:18,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:18,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:18,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:18,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 07:49:18,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:18,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:18,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:49:18,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:18,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:49:18,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:49:18,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:18,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:18,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:18,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:18,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:18,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:49:18,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:18,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:18,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:18,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:18,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:18,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:18,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 07:49:18,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:18,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:18,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:18,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:18,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:18,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 07:49:18,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:18,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:18,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:49:18,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:18,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:49:18,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:18,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:18,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:18,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:18,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:18,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:18,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:18,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:49:18,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:18,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:18,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:18,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:18,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:18,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:18,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:49:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:18,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:19,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:19,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:49:19,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:19,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 07:49:19,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:19,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:19,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:49:19,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:49:19,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 07:49:19,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:19,037 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 07:49:19,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [652114326] [2020-09-25 07:49:19,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:49:19,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:49:19,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077771932] [2020-09-25 07:49:19,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:49:19,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:49:19,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:49:19,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:49:19,040 INFO L87 Difference]: Start difference. First operand 99 states and 115 transitions. Second operand 9 states. [2020-09-25 07:49:19,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:49:19,711 INFO L93 Difference]: Finished difference Result 118 states and 133 transitions. [2020-09-25 07:49:19,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 07:49:19,712 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-09-25 07:49:19,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:49:19,715 INFO L225 Difference]: With dead ends: 118 [2020-09-25 07:49:19,715 INFO L226 Difference]: Without dead ends: 114 [2020-09-25 07:49:19,716 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 07:49:19,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-09-25 07:49:19,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 107. [2020-09-25 07:49:19,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-09-25 07:49:19,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 122 transitions. [2020-09-25 07:49:19,753 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 122 transitions. Word has length 70 [2020-09-25 07:49:19,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:49:19,754 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 122 transitions. [2020-09-25 07:49:19,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:49:19,754 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 122 transitions. [2020-09-25 07:49:19,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 07:49:19,758 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:49:19,758 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 07:49:19,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:49:19,759 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:49:19,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:49:19,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1230540462, now seen corresponding path program 1 times [2020-09-25 07:49:19,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:49:19,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1738643536] [2020-09-25 07:49:19,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:49:19,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:19,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:19,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:20,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:22,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:22,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 07:49:22,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:49:22,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2590 [2020-09-25 07:49:22,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:22,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:22,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:49:22,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-25 07:49:22,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 07:49:22,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:22,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:49:22,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:22,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:22,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:22,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:49:22,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:22,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 07:49:22,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:22,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:22,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:22,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:22,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:22,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:22,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 07:49:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:22,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:22,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:22,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:22,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:22,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:49:22,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:22,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:22,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:22,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:22,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:22,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:22,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:22,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:22,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:22,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:22,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:22,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:49:22,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:22,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:22,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:22,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:22,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:22,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:49:22,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 07:49:22,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:22,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:22,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:22,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:22,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:22,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 07:49:22,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:22,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:22,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:49:22,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:22,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 07:49:22,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:22,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:22,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:22,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:22,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:22,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:22,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:22,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 07:49:22,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:22,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:22,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:49:22,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:22,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 07:49:22,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:49:22,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:49:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:22,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:22,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:22,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:49:22,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:22,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:49:22,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:22,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:22,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 07:49:22,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:22,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:49:22,761 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 07:49:22,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1738643536] [2020-09-25 07:49:22,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:49:22,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:49:22,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684909596] [2020-09-25 07:49:22,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:49:22,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:49:22,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:49:22,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:49:22,787 INFO L87 Difference]: Start difference. First operand 107 states and 122 transitions. Second operand 10 states. [2020-09-25 07:49:23,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:49:23,224 INFO L93 Difference]: Finished difference Result 174 states and 203 transitions. [2020-09-25 07:49:23,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 07:49:23,225 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-09-25 07:49:23,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:49:23,228 INFO L225 Difference]: With dead ends: 174 [2020-09-25 07:49:23,228 INFO L226 Difference]: Without dead ends: 102 [2020-09-25 07:49:23,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2020-09-25 07:49:23,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-09-25 07:49:23,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 99. [2020-09-25 07:49:23,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-25 07:49:23,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 113 transitions. [2020-09-25 07:49:23,245 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 113 transitions. Word has length 71 [2020-09-25 07:49:23,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:49:23,246 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 113 transitions. [2020-09-25 07:49:23,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:49:23,246 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 113 transitions. [2020-09-25 07:49:23,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 07:49:23,248 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:49:23,248 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 07:49:23,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:49:23,248 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:49:23,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:49:23,249 INFO L82 PathProgramCache]: Analyzing trace with hash 983151375, now seen corresponding path program 1 times [2020-09-25 07:49:23,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:49:23,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [633392852] [2020-09-25 07:49:23,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:49:23,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:23,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:24,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:24,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 07:49:24,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:24,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 851 [2020-09-25 07:49:24,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:24,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:24,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 07:49:24,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 07:49:24,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 07:49:24,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:49:24,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:49:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:24,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:24,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:24,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:49:24,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:24,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 07:49:24,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:24,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:24,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:24,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:24,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:24,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:24,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 07:49:24,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:24,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:24,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:24,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:24,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:24,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 07:49:24,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:24,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:24,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:49:24,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:24,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 07:49:24,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:24,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:24,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:24,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:24,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:24,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:24,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:24,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 07:49:24,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:24,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:24,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:49:24,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:24,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 07:49:24,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:24,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 07:49:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:24,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:24,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:24,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:24,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:24,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 07:49:24,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:24,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:24,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 07:49:24,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:49:24,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 07:49:24,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:49:24,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:24,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:24,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:24,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:24,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:24,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:24,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 07:49:24,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:24,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:24,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:49:24,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:49:24,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 07:49:24,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:24,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:49:24,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:24,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:24,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:24,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:49:24,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:24,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 07:49:24,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:24,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:24,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:49:24,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:24,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 07:49:24,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:24,825 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 07:49:24,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [633392852] [2020-09-25 07:49:24,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:49:24,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 07:49:24,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253509600] [2020-09-25 07:49:24,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 07:49:24,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:49:24,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 07:49:24,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2020-09-25 07:49:24,828 INFO L87 Difference]: Start difference. First operand 99 states and 113 transitions. Second operand 23 states. [2020-09-25 07:49:26,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:49:26,609 INFO L93 Difference]: Finished difference Result 118 states and 137 transitions. [2020-09-25 07:49:26,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 07:49:26,610 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 71 [2020-09-25 07:49:26,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:49:26,611 INFO L225 Difference]: With dead ends: 118 [2020-09-25 07:49:26,611 INFO L226 Difference]: Without dead ends: 101 [2020-09-25 07:49:26,613 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 07:49:26,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-25 07:49:26,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 89. [2020-09-25 07:49:26,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-09-25 07:49:26,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 98 transitions. [2020-09-25 07:49:26,624 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 98 transitions. Word has length 71 [2020-09-25 07:49:26,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:49:26,625 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 98 transitions. [2020-09-25 07:49:26,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 07:49:26,625 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 98 transitions. [2020-09-25 07:49:26,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 07:49:26,626 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:49:26,627 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 07:49:26,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:49:26,627 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:49:26,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:49:26,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1660138148, now seen corresponding path program 1 times [2020-09-25 07:49:26,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:49:26,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1187106154] [2020-09-25 07:49:26,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:49:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:26,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:27,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:29,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:29,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 07:49:29,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:49:29,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2671 [2020-09-25 07:49:29,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:29,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:29,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:49:29,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-09-25 07:49:29,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 07:49:29,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:49:29,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:49:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:29,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:29,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:29,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:49:29,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:29,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:49:29,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:29,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:29,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:29,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:29,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:29,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:49:29,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 07:49:29,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:29,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:29,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:29,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:29,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:29,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:49:29,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:29,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:29,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:29,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:29,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:29,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:29,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:29,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:29,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:29,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:29,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:29,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:29,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:49:29,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:29,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:29,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:29,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:29,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:29,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:29,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 07:49:29,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:29,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:29,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:29,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:29,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:29,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:49:29,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:29,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:29,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:29,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:29,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:29,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:29,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:29,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:29,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:29,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:29,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:29,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:49:29,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:29,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:29,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:29,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:29,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:29,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:29,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:49:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:29,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:29,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:29,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:49:29,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:29,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:49:29,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:29,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:29,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:29,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:29,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:29,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:49:29,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 07:49:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:29,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:29,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:29,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:49:29,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:29,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:49:29,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:29,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:29,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:29,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:29,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:29,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:49:29,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 07:49:29,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:29,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:29,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:29,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:49:29,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:29,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 07:49:29,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:29,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:29,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:49:29,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:29,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:49:29,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:29,589 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-25 07:49:29,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1187106154] [2020-09-25 07:49:29,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:49:29,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 07:49:29,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930697452] [2020-09-25 07:49:29,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:49:29,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:49:29,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:49:29,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:49:29,591 INFO L87 Difference]: Start difference. First operand 89 states and 98 transitions. Second operand 10 states. [2020-09-25 07:49:30,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:49:30,145 INFO L93 Difference]: Finished difference Result 104 states and 114 transitions. [2020-09-25 07:49:30,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 07:49:30,145 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-09-25 07:49:30,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:49:30,147 INFO L225 Difference]: With dead ends: 104 [2020-09-25 07:49:30,147 INFO L226 Difference]: Without dead ends: 98 [2020-09-25 07:49:30,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2020-09-25 07:49:30,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-09-25 07:49:30,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2020-09-25 07:49:30,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-09-25 07:49:30,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2020-09-25 07:49:30,159 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 85 [2020-09-25 07:49:30,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:49:30,159 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2020-09-25 07:49:30,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:49:30,160 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2020-09-25 07:49:30,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 07:49:30,161 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:49:30,161 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 07:49:30,161 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 07:49:30,162 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:49:30,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:49:30,162 INFO L82 PathProgramCache]: Analyzing trace with hash 2046230471, now seen corresponding path program 1 times [2020-09-25 07:49:30,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:49:30,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [859748947] [2020-09-25 07:49:30,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:49:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:30,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:30,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:30,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:33,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:34,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:35,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:35,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 07:49:35,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:49:35,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 07:49:35,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:35,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:35,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:49:35,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-09-25 07:49:35,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 07:49:35,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:49:35,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:49:35,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:35,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:35,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:35,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:49:35,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:35,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:49:35,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:35,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:35,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:35,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:35,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:35,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:49:35,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 07:49:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:35,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:35,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:35,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:35,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:35,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:49:35,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:35,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:35,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:35,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:35,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:35,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:35,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:35,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:35,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:35,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:35,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:35,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:49:35,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:35,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:35,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:35,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:35,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:35,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:35,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 07:49:35,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:35,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:35,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:35,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:35,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:35,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:49:35,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:35,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:35,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:35,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:35,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:35,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:49:35,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:35,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:35,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:35,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:35,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:35,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:49:35,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:35,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:35,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:35,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:35,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:35,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:35,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:49:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:35,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:35,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:35,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:49:35,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:35,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 07:49:35,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:35,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:35,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:49:35,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:35,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 07:49:35,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:49:35,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 07:49:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:35,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:35,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:35,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:49:35,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:35,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 07:49:35,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:35,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:35,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:49:35,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:35,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 07:49:35,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:35,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 07:49:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:35,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:35,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:35,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:49:35,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:35,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 07:49:35,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:35,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:35,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:49:35,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:35,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:49:35,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:49:35,673 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-25 07:49:35,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [859748947] [2020-09-25 07:49:35,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:49:35,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 07:49:35,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232717440] [2020-09-25 07:49:35,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:49:35,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:49:35,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:49:35,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:49:35,675 INFO L87 Difference]: Start difference. First operand 97 states and 105 transitions. Second operand 10 states. [2020-09-25 07:49:36,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:49:36,485 INFO L93 Difference]: Finished difference Result 124 states and 132 transitions. [2020-09-25 07:49:36,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 07:49:36,486 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2020-09-25 07:49:36,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:49:36,487 INFO L225 Difference]: With dead ends: 124 [2020-09-25 07:49:36,488 INFO L226 Difference]: Without dead ends: 111 [2020-09-25 07:49:36,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2020-09-25 07:49:36,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-09-25 07:49:36,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 100. [2020-09-25 07:49:36,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-09-25 07:49:36,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 107 transitions. [2020-09-25 07:49:36,499 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 107 transitions. Word has length 86 [2020-09-25 07:49:36,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:49:36,500 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 107 transitions. [2020-09-25 07:49:36,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:49:36,500 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 107 transitions. [2020-09-25 07:49:36,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-09-25 07:49:36,501 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:49:36,502 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 07:49:36,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 07:49:36,502 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:49:36,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:49:36,502 INFO L82 PathProgramCache]: Analyzing trace with hash -416868516, now seen corresponding path program 1 times [2020-09-25 07:49:36,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:49:36,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [806835093] [2020-09-25 07:49:36,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:49:36,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 07:49:36,531 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 07:49:36,531 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 07:49:36,536 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 07:49:36,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:49:36 BoogieIcfgContainer [2020-09-25 07:49:36,562 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 07:49:36,566 INFO L168 Benchmark]: Toolchain (without parser) took 33785.57 ms. Allocated memory was 139.5 MB in the beginning and 494.9 MB in the end (delta: 355.5 MB). Free memory was 100.2 MB in the beginning and 387.8 MB in the end (delta: -287.6 MB). Peak memory consumption was 67.9 MB. Max. memory is 7.1 GB. [2020-09-25 07:49:36,566 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 07:49:36,567 INFO L168 Benchmark]: CACSL2BoogieTranslator took 688.51 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 99.5 MB in the beginning and 169.5 MB in the end (delta: -69.9 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2020-09-25 07:49:36,568 INFO L168 Benchmark]: Boogie Preprocessor took 64.70 ms. Allocated memory is still 203.9 MB. Free memory was 169.5 MB in the beginning and 166.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-09-25 07:49:36,569 INFO L168 Benchmark]: RCFGBuilder took 754.97 ms. Allocated memory is still 203.9 MB. Free memory was 166.1 MB in the beginning and 119.1 MB in the end (delta: 47.0 MB). Peak memory consumption was 47.0 MB. Max. memory is 7.1 GB. [2020-09-25 07:49:36,570 INFO L168 Benchmark]: TraceAbstraction took 32268.12 ms. Allocated memory was 203.9 MB in the beginning and 494.9 MB in the end (delta: 291.0 MB). Free memory was 118.4 MB in the beginning and 387.8 MB in the end (delta: -269.3 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2020-09-25 07:49:36,573 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 688.51 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 99.5 MB in the beginning and 169.5 MB in the end (delta: -69.9 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 64.70 ms. Allocated memory is still 203.9 MB. Free memory was 169.5 MB in the beginning and 166.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 754.97 ms. Allocated memory is still 203.9 MB. Free memory was 166.1 MB in the beginning and 119.1 MB in the end (delta: 47.0 MB). Peak memory consumption was 47.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32268.12 ms. Allocated memory was 203.9 MB in the beginning and 494.9 MB in the end (delta: 291.0 MB). Free memory was 118.4 MB in the beginning and 387.8 MB in the end (delta: -269.3 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L867] void * guard_malloc_counter = 0; [L887] struct list_head *elem = ((void *)0); [L900] static struct list_head head; [L903] struct list_head *dev1, *dev2; [L904] CALL, EXPR my_malloc(sizeof(*dev1)) [L879] CALL, EXPR __getMemory(size) [L871] (size > 0) ? (0) : __blast_assert () [L872] guard_malloc_counter++ [L873] COND FALSE !(!__VERIFIER_nondet_int()) [L875] return (void *) guard_malloc_counter; [L879] RET, EXPR __getMemory(size) [L879] return __getMemory(size); [L904] RET, EXPR my_malloc(sizeof(*dev1)) [L904] dev1 = my_malloc(sizeof(*dev1)) [L905] CALL, EXPR my_malloc(sizeof(*dev2)) [L879] CALL, EXPR __getMemory(size) [L871] (size > 0) ? (0) : __blast_assert () [L872] guard_malloc_counter++ [L873] COND FALSE !(!__VERIFIER_nondet_int()) [L875] return (void *) guard_malloc_counter; [L879] RET, EXPR __getMemory(size) [L879] return __getMemory(size); [L905] RET, EXPR my_malloc(sizeof(*dev2)) [L905] dev2 = my_malloc(sizeof(*dev2)) [L906] COND TRUE dev1!=((void *)0) && dev2!=((void *)0) [L907] CALL list_add(dev2, &head) [L890] (new!=elem) ? (0) : __blast_assert () [L891] COND FALSE !(__VERIFIER_nondet_int()) [L907] RET list_add(dev2, &head) [L908] CALL list_add(dev1, &head) [L890] (new!=elem) ? (0) : __blast_assert () [L891] COND TRUE __VERIFIER_nondet_int() [L892] elem = new [L908] RET list_add(dev1, &head) [L909] CALL list_del(dev2) [L896] COND FALSE !(entry==elem) [L909] RET list_del(dev2) [L910] CALL list_add(dev2, &head) [L890] (new!=elem) ? (0) : __blast_assert () [L891] COND FALSE !(__VERIFIER_nondet_int()) [L910] RET list_add(dev2, &head) [L913] CALL list_add(dev1, &head) [L890] (new!=elem) ? (0) : __blast_assert () [L890] CALL __blast_assert () [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 32.1s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 495 SDtfs, 813 SDslu, 1192 SDs, 0 SdLazy, 3170 SolverSat, 325 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 238 GetRequests, 89 SyntacticMatches, 3 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 50 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 25.3s InterpolantComputationTime, 629 NumberOfCodeBlocks, 629 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 527 ConstructedInterpolants, 0 QuantifiedInterpolants, 131526 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 133/155 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...