/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.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:49:02,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:49:02,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:49:02,196 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:49:02,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:49:02,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:49:02,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:49:02,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:49:02,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:49:02,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:49:02,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:49:02,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:49:02,219 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:49:02,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:49:02,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:49:02,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:49:02,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:49:02,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:49:02,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:49:02,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:49:02,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:49:02,230 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:49:02,232 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:49:02,233 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:49:02,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:49:02,235 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:49:02,235 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:49:02,237 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:49:02,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:49:02,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:49:02,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:49:02,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:49:02,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:49:02,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:49:02,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:49:02,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:49:02,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:49:02,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:49:02,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:49:02,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:49:02,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:49:02,247 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 07:49:02,271 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:49:02,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:49:02,273 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:49:02,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:49:02,273 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:49:02,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:49:02,274 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:49:02,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:49:02,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:49:02,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:49:02,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:49:02,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:49:02,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:49:02,275 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:49:02,276 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:49:02,276 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:49:02,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:49:02,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:49:02,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:49:02,277 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:49:02,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:49:02,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:49:02,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:49:02,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:49:02,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:49:02,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:49:02,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:49:02,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:49:02,281 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:49:02,281 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 07:49:02,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:49:02,776 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:49:02,780 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:49:02,781 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:49:02,782 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:49:02,783 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-09-25 07:49:02,862 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd78bec71/a4f1973fe2d94d458242490e498a93a9/FLAG99032bd18 [2020-09-25 07:49:03,498 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:49:03,499 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-09-25 07:49:03,511 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd78bec71/a4f1973fe2d94d458242490e498a93a9/FLAG99032bd18 [2020-09-25 07:49:03,725 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd78bec71/a4f1973fe2d94d458242490e498a93a9 [2020-09-25 07:49:03,738 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:49:03,744 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:49:03,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:49:03,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:49:03,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:49:03,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:49:03" (1/1) ... [2020-09-25 07:49:03,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c15e6cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:03, skipping insertion in model container [2020-09-25 07:49:03,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:49:03" (1/1) ... [2020-09-25 07:49:03,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:49:03,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:49:04,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:49:04,238 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:49:04,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:49:04,476 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:49:04,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:04 WrapperNode [2020-09-25 07:49:04,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:49:04,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:49:04,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:49:04,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:49:04,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:04" (1/1) ... [2020-09-25 07:49:04,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:04" (1/1) ... [2020-09-25 07:49:04,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:04" (1/1) ... [2020-09-25 07:49:04,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:04" (1/1) ... [2020-09-25 07:49:04,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:04" (1/1) ... [2020-09-25 07:49:04,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:04" (1/1) ... [2020-09-25 07:49:04,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:04" (1/1) ... [2020-09-25 07:49:04,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:49:04,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:49:04,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:49:04,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:49:04,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:04" (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 07:49:04,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:49:04,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:49:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-25 07:49:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2020-09-25 07:49:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2020-09-25 07:49:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-09-25 07:49:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-09-25 07:49:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:49:04,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:49:04,723 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-25 07:49:04,723 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-09-25 07:49:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-09-25 07:49:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-09-25 07:49:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-09-25 07:49:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-09-25 07:49:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-09-25 07:49:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-09-25 07:49:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-09-25 07:49:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-09-25 07:49:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-09-25 07:49:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-09-25 07:49:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-09-25 07:49:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-09-25 07:49:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-09-25 07:49:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-09-25 07:49:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-09-25 07:49:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-09-25 07:49:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-09-25 07:49:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-09-25 07:49:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-09-25 07:49:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-09-25 07:49:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-09-25 07:49:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-09-25 07:49:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-09-25 07:49:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-09-25 07:49:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-09-25 07:49:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-09-25 07:49:04,729 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-09-25 07:49:04,729 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-09-25 07:49:04,729 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-09-25 07:49:04,729 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-09-25 07:49:04,729 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-09-25 07:49:04,729 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-09-25 07:49:04,730 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-09-25 07:49:04,730 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-09-25 07:49:04,730 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-09-25 07:49:04,730 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-09-25 07:49:04,730 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-09-25 07:49:04,730 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:49:04,731 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-09-25 07:49:04,731 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-09-25 07:49:04,731 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-09-25 07:49:04,731 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-09-25 07:49:04,731 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-09-25 07:49:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-09-25 07:49:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-09-25 07:49:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-09-25 07:49:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-09-25 07:49:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-09-25 07:49:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-09-25 07:49:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-09-25 07:49:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-09-25 07:49:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-09-25 07:49:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-09-25 07:49:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-09-25 07:49:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-09-25 07:49:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-09-25 07:49:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-09-25 07:49:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-09-25 07:49:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-09-25 07:49:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-09-25 07:49:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-09-25 07:49:04,735 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-09-25 07:49:04,735 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-09-25 07:49:04,735 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-09-25 07:49:04,735 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-09-25 07:49:04,735 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-09-25 07:49:04,735 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-09-25 07:49:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-09-25 07:49:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-09-25 07:49:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-09-25 07:49:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-09-25 07:49:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-09-25 07:49:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-09-25 07:49:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-09-25 07:49:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-09-25 07:49:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-09-25 07:49:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-09-25 07:49:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-09-25 07:49:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-09-25 07:49:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-09-25 07:49:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-09-25 07:49:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-09-25 07:49:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-09-25 07:49:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-09-25 07:49:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-09-25 07:49:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-09-25 07:49:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-09-25 07:49:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-09-25 07:49:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-09-25 07:49:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-09-25 07:49:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-09-25 07:49:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-09-25 07:49:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-09-25 07:49:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-09-25 07:49:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-09-25 07:49:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-09-25 07:49:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-09-25 07:49:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-09-25 07:49:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-09-25 07:49:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-09-25 07:49:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:49:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 07:49:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 07:49:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:49:04,742 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 07:49:04,742 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-09-25 07:49:04,742 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 07:49:04,742 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-09-25 07:49:04,742 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-09-25 07:49:04,742 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-09-25 07:49:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-09-25 07:49:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-09-25 07:49:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-09-25 07:49:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-09-25 07:49:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-09-25 07:49:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-09-25 07:49:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-09-25 07:49:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-09-25 07:49:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:49:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2020-09-25 07:49:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2020-09-25 07:49:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-09-25 07:49:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-09-25 07:49:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:49:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:49:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:49:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 07:49:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:49:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:49:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:49:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:49:05,289 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:49:05,289 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 07:49:05,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:49:05 BoogieIcfgContainer [2020-09-25 07:49:05,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:49:05,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:49:05,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:49:05,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:49:05,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:49:03" (1/3) ... [2020-09-25 07:49:05,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163b31c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:49:05, skipping insertion in model container [2020-09-25 07:49:05,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:04" (2/3) ... [2020-09-25 07:49:05,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163b31c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:49:05, skipping insertion in model container [2020-09-25 07:49:05,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:49:05" (3/3) ... [2020-09-25 07:49:05,328 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.i [2020-09-25 07:49:05,365 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:49:05,387 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:49:05,438 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:49:05,466 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:49:05,466 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:49:05,466 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:49:05,467 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:49:05,467 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:49:05,467 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:49:05,467 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:49:05,467 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:49:05,492 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2020-09-25 07:49:05,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-25 07:49:05,500 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:49:05,502 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 07:49:05,502 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:49:05,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:49:05,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1653885127, now seen corresponding path program 1 times [2020-09-25 07:49:05,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:49:05,522 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [391697889] [2020-09-25 07:49:05,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:49:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:05,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:06,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:06,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 07:49:06,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:06,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369 [2020-09-25 07:49:06,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:06,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:06,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:49:06,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 07:49:06,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:49:06,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:49:06,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:49:06,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:06,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:06,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:06,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:49:06,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:06,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 07:49:06,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:06,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:06,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:06,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:06,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:06,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:06,302 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 07:49:06,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [391697889] [2020-09-25 07:49:06,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:49:06,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:49:06,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674170244] [2020-09-25 07:49:06,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:49:06,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:49:06,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:49:06,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:49:06,334 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 7 states. [2020-09-25 07:49:06,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:49:06,849 INFO L93 Difference]: Finished difference Result 126 states and 151 transitions. [2020-09-25 07:49:06,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 07:49:06,851 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-09-25 07:49:06,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:49:06,868 INFO L225 Difference]: With dead ends: 126 [2020-09-25 07:49:06,868 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 07:49:06,874 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 07:49:06,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 07:49:06,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2020-09-25 07:49:06,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-25 07:49:06,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2020-09-25 07:49:06,945 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 21 [2020-09-25 07:49:06,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:49:06,946 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2020-09-25 07:49:06,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:49:06,946 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2020-09-25 07:49:06,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 07:49:06,949 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:49:06,950 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 07:49:06,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:49:06,950 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:49:06,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:49:06,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1154270079, now seen corresponding path program 1 times [2020-09-25 07:49:06,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:49:06,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2145030415] [2020-09-25 07:49:06,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:49:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:07,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:07,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:08,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:11,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:11,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 07:49:11,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:49:11,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4719 [2020-09-25 07:49:11,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:11,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:11,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 07:49:11,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 07:49:11,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 07:49:11,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:49:11,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:49:11,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:11,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:11,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:11,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:49:11,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:11,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 07:49:11,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:11,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:11,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:49:11,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:11,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:49:11,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:12,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 07:49:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:12,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:12,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:12,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:12,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:12,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 07:49:12,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:12,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:12,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:49:12,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:12,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:49:12,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:12,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:12,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:12,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:12,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:12,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:12,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:12,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:49:12,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:12,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:12,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:12,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:12,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:12,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:12,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 07:49:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:12,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:12,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:12,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:12,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:12,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 07:49:12,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:12,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:12,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:49:12,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:12,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:49:12,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:12,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:12,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:12,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:12,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:12,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:12,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:49:12,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:12,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:12,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:12,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:12,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:12,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:49:12,191 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 07:49:12,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2145030415] [2020-09-25 07:49:12,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:49:12,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 07:49:12,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406891239] [2020-09-25 07:49:12,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:49:12,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:49:12,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:49:12,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:49:12,196 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand 8 states. [2020-09-25 07:49:12,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:49:12,901 INFO L93 Difference]: Finished difference Result 101 states and 110 transitions. [2020-09-25 07:49:12,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 07:49:12,901 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-09-25 07:49:12,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:49:12,904 INFO L225 Difference]: With dead ends: 101 [2020-09-25 07:49:12,904 INFO L226 Difference]: Without dead ends: 88 [2020-09-25 07:49:12,906 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 07:49:12,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-25 07:49:12,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 81. [2020-09-25 07:49:12,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-25 07:49:12,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2020-09-25 07:49:12,922 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 61 [2020-09-25 07:49:12,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:49:12,923 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2020-09-25 07:49:12,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:49:12,923 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-09-25 07:49:12,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 07:49:12,926 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:49:12,926 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 07:49:12,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:49:12,927 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:49:12,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:49:12,927 INFO L82 PathProgramCache]: Analyzing trace with hash -497938342, now seen corresponding path program 1 times [2020-09-25 07:49:12,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:49:12,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1759497199] [2020-09-25 07:49:12,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:49:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:12,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:13,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:13,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:14,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:17,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:17,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 07:49:17,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:49:17,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 07:49:17,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:17,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:17,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:49:17,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 07:49:17,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 07:49:17,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:18,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:49:18,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:18,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:18,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:18,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:49:18,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:18,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 07:49:18,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:18,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:18,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:18,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:18,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:18,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:18,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 07:49:18,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:18,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:18,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:18,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:18,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:18,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 07:49:18,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:18,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:18,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:49:18,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:18,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 07:49:18,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:18,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:18,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:18,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:18,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:18,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:18,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 07:49:18,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:18,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:18,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:49:18,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:18,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 07:49:18,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:49:18,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 07:49:18,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:18,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:18,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:18,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:18,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:18,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 07:49:18,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:18,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:18,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:49:18,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:18,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:49:18,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:18,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:18,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:18,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:18,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:18,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:18,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:49:18,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:18,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:18,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:18,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:18,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:18,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:49:18,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:49:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:18,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:18,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:18,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:49:18,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:18,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 07:49:18,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:18,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:18,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:18,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:49:18,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:18,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:18,418 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 07:49:18,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1759497199] [2020-09-25 07:49:18,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:49:18,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 07:49:18,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62620881] [2020-09-25 07:49:18,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:49:18,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:49:18,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:49:18,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:49:18,424 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand 10 states. [2020-09-25 07:49:18,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:49:18,908 INFO L93 Difference]: Finished difference Result 134 states and 151 transitions. [2020-09-25 07:49:18,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 07:49:18,909 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 70 [2020-09-25 07:49:18,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:49:18,910 INFO L225 Difference]: With dead ends: 134 [2020-09-25 07:49:18,911 INFO L226 Difference]: Without dead ends: 87 [2020-09-25 07:49:18,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2020-09-25 07:49:18,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-09-25 07:49:18,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-09-25 07:49:18,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-25 07:49:18,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2020-09-25 07:49:18,926 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 70 [2020-09-25 07:49:18,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:49:18,926 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2020-09-25 07:49:18,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:49:18,926 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2020-09-25 07:49:18,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 07:49:18,928 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:49:18,928 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 07:49:18,928 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:49:18,928 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:49:18,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:49:18,929 INFO L82 PathProgramCache]: Analyzing trace with hash 2098824736, now seen corresponding path program 1 times [2020-09-25 07:49:18,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:49:18,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1227980221] [2020-09-25 07:49:18,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:49:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:18,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:19,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:20,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:20,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 07:49:20,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:49:20,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1319 [2020-09-25 07:49:20,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:20,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:20,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 07:49:20,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 07:49:20,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 07:49:20,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:20,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:49:20,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:20,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:20,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:20,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:49:20,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:20,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 07:49:20,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:20,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:20,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:49:20,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:20,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:49:20,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:20,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 07:49:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:20,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:20,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:20,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:20,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:20,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 07:49:20,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:20,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:20,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:49:20,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:20,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:49:20,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:20,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:20,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:20,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:20,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:20,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:20,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:20,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:49:20,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:20,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:20,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:20,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:20,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:20,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:20,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 07:49:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:20,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:20,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:20,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:20,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:20,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 07:49:20,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:20,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:20,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:49:20,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:20,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:49:20,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:20,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:20,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:20,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:20,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:20,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:20,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:49:20,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:20,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:20,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:20,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:20,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:20,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:20,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:49:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:20,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:20,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:20,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:49:20,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:20,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 07:49:20,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:20,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:20,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:49:20,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:49:20,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 07:49:20,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:49:20,748 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 07:49:20,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1227980221] [2020-09-25 07:49:20,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:49:20,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:49:20,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589715971] [2020-09-25 07:49:20,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:49:20,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:49:20,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:49:20,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:49:20,752 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand 9 states. [2020-09-25 07:49:21,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:49:21,419 INFO L93 Difference]: Finished difference Result 102 states and 109 transitions. [2020-09-25 07:49:21,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 07:49:21,420 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-09-25 07:49:21,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:49:21,424 INFO L225 Difference]: With dead ends: 102 [2020-09-25 07:49:21,424 INFO L226 Difference]: Without dead ends: 97 [2020-09-25 07:49:21,425 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-09-25 07:49:21,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-09-25 07:49:21,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 90. [2020-09-25 07:49:21,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-09-25 07:49:21,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 97 transitions. [2020-09-25 07:49:21,450 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 97 transitions. Word has length 70 [2020-09-25 07:49:21,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:49:21,452 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 97 transitions. [2020-09-25 07:49:21,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:49:21,452 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 97 transitions. [2020-09-25 07:49:21,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 07:49:21,456 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:49:21,456 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 07:49:21,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:49:21,457 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:49:21,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:49:21,457 INFO L82 PathProgramCache]: Analyzing trace with hash -173985679, now seen corresponding path program 1 times [2020-09-25 07:49:21,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:49:21,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [559508282] [2020-09-25 07:49:21,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:49:21,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:21,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:21,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:22,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:24,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:24,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 07:49:24,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:49:24,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2588 [2020-09-25 07:49:24,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:24,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:24,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:49:24,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-25 07:49:24,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 07:49:24,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:49:24,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:49:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:24,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:24,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:24,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:49:24,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:24,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 07:49:24,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:24,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:24,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:24,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:24,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:24,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:24,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 07:49:24,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:24,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:24,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:24,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:24,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:24,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 07:49:24,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:24,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:24,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:24,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:24,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:24,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:49:24,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:24,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:24,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:24,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:24,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:24,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:49:24,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:24,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:24,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:24,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:24,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:24,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 20 [2020-09-25 07:49:24,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 07:49:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:24,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:24,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:24,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:24,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:24,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 07:49:24,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:24,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:24,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:49:24,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:24,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 07:49:24,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:49:24,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:24,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:24,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:24,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:24,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:24,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 07:49:24,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:24,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:24,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:49:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 07:49:24,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:24,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:49:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:24,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:24,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:24,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:49:24,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:24,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:49:24,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:24,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:24,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:24,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 07:49:24,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:24,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:24,506 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 07:49:24,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [559508282] [2020-09-25 07:49:24,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:49:24,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:49:24,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199047628] [2020-09-25 07:49:24,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:49:24,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:49:24,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:49:24,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:49:24,511 INFO L87 Difference]: Start difference. First operand 90 states and 97 transitions. Second operand 10 states. [2020-09-25 07:49:25,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:49:25,094 INFO L93 Difference]: Finished difference Result 137 states and 149 transitions. [2020-09-25 07:49:25,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 07:49:25,095 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-09-25 07:49:25,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:49:25,098 INFO L225 Difference]: With dead ends: 137 [2020-09-25 07:49:25,098 INFO L226 Difference]: Without dead ends: 82 [2020-09-25 07:49:25,102 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 07:49:25,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-09-25 07:49:25,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-09-25 07:49:25,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-09-25 07:49:25,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2020-09-25 07:49:25,132 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 71 [2020-09-25 07:49:25,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:49:25,133 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2020-09-25 07:49:25,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:49:25,134 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2020-09-25 07:49:25,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 07:49:25,139 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:49:25,139 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 07:49:25,139 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:49:25,142 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:49:25,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:49:25,142 INFO L82 PathProgramCache]: Analyzing trace with hash 2039706158, now seen corresponding path program 1 times [2020-09-25 07:49:25,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:49:25,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [694668482] [2020-09-25 07:49:25,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:49:25,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:25,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:26,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:26,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 07:49:26,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:26,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 931 [2020-09-25 07:49:26,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:26,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:26,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 07:49:26,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 07:49:26,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 07:49:26,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:26,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:49:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:26,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:26,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:26,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:49:26,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:26,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 07:49:26,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:26,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:26,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:26,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:26,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:26,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:26,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 07:49:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:26,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:26,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:26,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:26,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:26,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 07:49:26,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:26,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:26,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:49:26,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:26,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 07:49:26,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:26,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:26,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:26,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:26,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:26,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:26,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 07:49:26,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:26,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:26,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:49:26,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:26,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 07:49:26,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:26,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 07:49:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:26,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:26,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:26,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:26,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:26,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-25 07:49:26,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:26,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:26,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 07:49:26,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:49:26,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 07:49:26,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:26,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:26,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:26,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:26,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:26,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:26,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 07:49:26,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:26,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:26,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:49:26,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:49:26,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 07:49:26,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:26,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:49:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:26,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:26,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:26,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:49:26,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:26,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 07:49:26,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:26,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:26,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:49:26,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:26,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 07:49:26,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:26,855 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 07:49:26,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [694668482] [2020-09-25 07:49:26,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:49:26,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 07:49:26,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431367485] [2020-09-25 07:49:26,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 07:49:26,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:49:26,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 07:49:26,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2020-09-25 07:49:26,859 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand 23 states. [2020-09-25 07:49:28,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:49:28,170 INFO L93 Difference]: Finished difference Result 97 states and 105 transitions. [2020-09-25 07:49:28,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 07:49:28,171 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 71 [2020-09-25 07:49:28,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:49:28,172 INFO L225 Difference]: With dead ends: 97 [2020-09-25 07:49:28,172 INFO L226 Difference]: Without dead ends: 89 [2020-09-25 07:49:28,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=188, Invalid=1618, Unknown=0, NotChecked=0, Total=1806 [2020-09-25 07:49:28,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-09-25 07:49:28,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2020-09-25 07:49:28,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-09-25 07:49:28,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2020-09-25 07:49:28,187 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 71 [2020-09-25 07:49:28,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:49:28,187 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2020-09-25 07:49:28,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 07:49:28,188 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2020-09-25 07:49:28,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 07:49:28,189 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:49:28,189 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 07:49:28,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:49:28,190 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:49:28,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:49:28,190 INFO L82 PathProgramCache]: Analyzing trace with hash 2033290459, now seen corresponding path program 1 times [2020-09-25 07:49:28,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:49:28,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1132973745] [2020-09-25 07:49:28,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:49:28,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:28,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:28,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:31,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:31,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 07:49:31,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:49:31,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2810 [2020-09-25 07:49:31,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:31,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:31,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:49:31,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-09-25 07:49:31,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 07:49:31,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:31,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:49:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:31,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:31,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:31,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:49:31,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:31,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 07:49:31,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:31,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:31,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:31,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:31,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:31,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:31,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 07:49:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:31,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:31,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:31,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:31,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:31,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:49:31,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:31,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:31,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:31,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:31,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:31,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:31,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:31,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:31,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:31,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:31,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:31,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:49:31,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:31,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:31,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:31,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:31,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:31,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:31,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 07:49:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:31,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:31,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:31,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:31,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:31,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:49:31,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:31,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:31,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:31,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:31,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:31,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:31,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:31,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:31,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:31,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:31,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:31,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:49:31,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:31,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:31,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:31,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:31,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:31,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:31,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:49:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:31,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:31,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:31,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:49:31,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:31,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:49:31,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:31,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:31,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:31,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:31,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:31,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:31,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 07:49:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:31,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:31,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:31,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:49:31,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:31,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:49:31,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:31,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:31,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:31,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:31,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:31,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:31,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 07:49:31,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:31,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:31,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:31,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:49:31,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:31,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 07:49:31,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:31,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:31,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:49:31,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:31,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:49:31,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:31,415 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 07:49:31,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1132973745] [2020-09-25 07:49:31,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:49:31,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 07:49:31,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541289438] [2020-09-25 07:49:31,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:49:31,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:49:31,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:49:31,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:49:31,421 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 10 states. [2020-09-25 07:49:32,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:49:32,051 INFO L93 Difference]: Finished difference Result 88 states and 92 transitions. [2020-09-25 07:49:32,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 07:49:32,053 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-09-25 07:49:32,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:49:32,055 INFO L225 Difference]: With dead ends: 88 [2020-09-25 07:49:32,055 INFO L226 Difference]: Without dead ends: 79 [2020-09-25 07:49:32,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2020-09-25 07:49:32,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-25 07:49:32,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-09-25 07:49:32,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-09-25 07:49:32,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 83 transitions. [2020-09-25 07:49:32,079 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 83 transitions. Word has length 85 [2020-09-25 07:49:32,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:49:32,080 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 83 transitions. [2020-09-25 07:49:32,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:49:32,081 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 83 transitions. [2020-09-25 07:49:32,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 07:49:32,082 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:49:32,083 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 07:49:32,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 07:49:32,083 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:49:32,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:49:32,091 INFO L82 PathProgramCache]: Analyzing trace with hash 578402155, now seen corresponding path program 1 times [2020-09-25 07:49:32,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:49:32,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050638815] [2020-09-25 07:49:32,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:49:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:32,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:32,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:32,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:36,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:36,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:37,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:37,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 07:49:37,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:49:37,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 07:49:37,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:37,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:37,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:49:37,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-09-25 07:49:37,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 07:49:37,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:37,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:49:37,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:37,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:37,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:37,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:49:37,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:37,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:49:37,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:37,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:37,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:37,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:37,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:37,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:37,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 07:49:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:37,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:37,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:37,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:37,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:37,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:49:37,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:37,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:37,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:37,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:37,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:37,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:37,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:37,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:37,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:37,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:37,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:37,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:37,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:49:37,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:37,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:37,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:37,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:37,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:37,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:37,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 07:49:37,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:37,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:37,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:37,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:49:37,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:37,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:49:37,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:37,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:37,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:37,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:37,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:37,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:37,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:37,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:37,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:37,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:37,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:49:37,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:37,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:49:37,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:37,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:37,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:37,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:37,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:37,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:37,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:49:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:37,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:37,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:37,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:49:37,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:37,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 07:49:37,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:37,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:37,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:49:37,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:37,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 07:49:37,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:37,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 07:49:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:37,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:37,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:37,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:49:37,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:37,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:49:37,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:37,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:37,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:49:37,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:37,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 07:49:37,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:49:37,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 07:49:37,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:37,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:37,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:37,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:49:37,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:37,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 07:49:37,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:37,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:37,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:49:37,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:37,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:49:37,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:37,612 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 07:49:37,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050638815] [2020-09-25 07:49:37,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:49:37,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 07:49:37,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319820970] [2020-09-25 07:49:37,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:49:37,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:49:37,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:49:37,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:49:37,615 INFO L87 Difference]: Start difference. First operand 79 states and 83 transitions. Second operand 10 states. [2020-09-25 07:49:38,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:49:38,311 INFO L93 Difference]: Finished difference Result 83 states and 87 transitions. [2020-09-25 07:49:38,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 07:49:38,313 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2020-09-25 07:49:38,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:49:38,314 INFO L225 Difference]: With dead ends: 83 [2020-09-25 07:49:38,314 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 07:49:38,314 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 07:49:38,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 07:49:38,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 07:49:38,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 07:49:38,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 07:49:38,315 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 86 [2020-09-25 07:49:38,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:49:38,316 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 07:49:38,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:49:38,316 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 07:49:38,316 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 07:49:38,316 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 07:49:38,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 07:49:38,909 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 13 [2020-09-25 07:49:39,635 INFO L268 CegarLoopResult]: For program point my_mallocFINAL(lines 878 880) no Hoare annotation was computed. [2020-09-25 07:49:39,635 INFO L264 CegarLoopResult]: At program point L879(line 879) the Hoare annotation is: (or (not (<= 0 ~elem~0.base)) (not (= ~elem~0.base ~elem~0.offset)) (not (= |my_malloc_#in~size| 8)) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= my_malloc_~size 8)) (not (<= ~elem~0.base 0))) [2020-09-25 07:49:39,636 INFO L268 CegarLoopResult]: For program point L879-1(line 879) no Hoare annotation was computed. [2020-09-25 07:49:39,636 INFO L268 CegarLoopResult]: For program point L879-2(line 879) no Hoare annotation was computed. [2020-09-25 07:49:39,637 INFO L264 CegarLoopResult]: At program point my_mallocENTRY(lines 878 880) the Hoare annotation is: (or (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|)) (not (<= 0 ~elem~0.base)) (not (= ~elem~0.base ~elem~0.offset)) (not (= |my_malloc_#in~size| 8)) (not (<= ~elem~0.base 0))) [2020-09-25 07:49:39,637 INFO L268 CegarLoopResult]: For program point my_mallocEXIT(lines 878 880) no Hoare annotation was computed. [2020-09-25 07:49:39,637 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 07:49:39,637 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 07:49:39,637 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line 900) no Hoare annotation was computed. [2020-09-25 07:49:39,639 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= |~#head~0.base| |old(~#head~0.base)|) (= |old(#length)| |#length|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= |~#head~0.offset| |old(~#head~0.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= ~elem~0.offset |old(~elem~0.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~elem~0.base |old(~elem~0.base)|) (= |old(#valid)| |#valid|)) [2020-09-25 07:49:39,639 INFO L268 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-09-25 07:49:39,639 INFO L268 CegarLoopResult]: For program point L900(line 900) no Hoare annotation was computed. [2020-09-25 07:49:39,639 INFO L268 CegarLoopResult]: For program point L867(line 867) no Hoare annotation was computed. [2020-09-25 07:49:39,639 INFO L268 CegarLoopResult]: For program point L900-1(line 900) no Hoare annotation was computed. [2020-09-25 07:49:39,639 INFO L268 CegarLoopResult]: For program point L900-2(line 900) no Hoare annotation was computed. [2020-09-25 07:49:39,640 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 07:49:39,640 INFO L268 CegarLoopResult]: For program point L897(line 897) no Hoare annotation was computed. [2020-09-25 07:49:39,640 INFO L268 CegarLoopResult]: For program point L896(lines 896 897) no Hoare annotation was computed. [2020-09-25 07:49:39,640 INFO L268 CegarLoopResult]: For program point L896-2(lines 895 898) no Hoare annotation was computed. [2020-09-25 07:49:39,640 INFO L268 CegarLoopResult]: For program point list_delEXIT(lines 895 898) no Hoare annotation was computed. [2020-09-25 07:49:39,640 INFO L264 CegarLoopResult]: At program point list_delENTRY(lines 895 898) the Hoare annotation is: (and (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset)) [2020-09-25 07:49:39,641 INFO L264 CegarLoopResult]: At program point list_addENTRY(lines 889 893) the Hoare annotation is: (or (and (= |old(~elem~0.base)| |list_add_#in~new.base|) (= |old(~elem~0.offset)| |list_add_#in~new.offset|)) (and (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset))) [2020-09-25 07:49:39,641 INFO L268 CegarLoopResult]: For program point L892(line 892) no Hoare annotation was computed. [2020-09-25 07:49:39,641 INFO L268 CegarLoopResult]: For program point L891(lines 891 892) no Hoare annotation was computed. [2020-09-25 07:49:39,641 INFO L268 CegarLoopResult]: For program point L890(line 890) no Hoare annotation was computed. [2020-09-25 07:49:39,642 INFO L268 CegarLoopResult]: For program point L891-1(line 891) no Hoare annotation was computed. [2020-09-25 07:49:39,642 INFO L268 CegarLoopResult]: For program point L889(lines 889 893) no Hoare annotation was computed. [2020-09-25 07:49:39,642 INFO L264 CegarLoopResult]: At program point L890-2(line 890) the Hoare annotation is: (and (= |old(~elem~0.base)| |list_add_#in~new.base|) (= |old(~elem~0.offset)| |list_add_#in~new.offset|)) [2020-09-25 07:49:39,642 INFO L268 CegarLoopResult]: For program point L891-3(line 891) no Hoare annotation was computed. [2020-09-25 07:49:39,642 INFO L268 CegarLoopResult]: For program point L890-3(line 890) no Hoare annotation was computed. [2020-09-25 07:49:39,643 INFO L268 CegarLoopResult]: For program point L891-4(lines 889 893) no Hoare annotation was computed. [2020-09-25 07:49:39,643 INFO L268 CegarLoopResult]: For program point list_addEXIT(lines 889 893) no Hoare annotation was computed. [2020-09-25 07:49:39,643 INFO L268 CegarLoopResult]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2020-09-25 07:49:39,643 INFO L268 CegarLoopResult]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed. [2020-09-25 07:49:39,643 INFO L268 CegarLoopResult]: For program point __blast_assertFINAL(lines 4 7) no Hoare annotation was computed. [2020-09-25 07:49:39,643 INFO L271 CegarLoopResult]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2020-09-25 07:49:39,644 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 07:49:39,644 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~elem~0.base ~elem~0.offset) (= ~elem~0.base 0) (< ~elem~0.offset (+ ~elem~0.base 1))) [2020-09-25 07:49:39,644 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 07:49:39,644 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 07:49:39,644 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 902 917) the Hoare annotation is: (or (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= ~elem~0.offset 0) (= |old(~elem~0.base)| ~elem~0.base)) (not (= |old(~elem~0.offset)| 0))) [2020-09-25 07:49:39,644 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 902 917) no Hoare annotation was computed. [2020-09-25 07:49:39,645 INFO L264 CegarLoopResult]: At program point L909(line 909) the Hoare annotation is: (or (and (not (= main_~dev2~0.offset main_~dev1~0.offset)) (or (not (= main_~dev2~0.base ~elem~0.base)) (not (= main_~dev2~0.offset ~elem~0.offset)))) (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (not (= |old(~elem~0.offset)| 0)) (and (<= ~elem~0.base 0) (<= 0 ~elem~0.base) (or (<= (+ main_~dev2~0.offset 1) 0) (< 0 main_~dev2~0.base) (< 0 main_~dev2~0.offset) (<= (+ main_~dev2~0.base 1) 0)) (= ~elem~0.base ~elem~0.offset))) [2020-09-25 07:49:39,646 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 902 917) no Hoare annotation was computed. [2020-09-25 07:49:39,646 INFO L264 CegarLoopResult]: At program point L908(line 908) the Hoare annotation is: (let ((.cse0 (or (<= (+ main_~dev2~0.offset 1) 0) (< 0 main_~dev2~0.base) (< 0 main_~dev2~0.offset) (<= (+ main_~dev2~0.base 1) 0)))) (or (and .cse0 (not (= main_~dev2~0.offset main_~dev1~0.offset))) (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (not (= |old(~elem~0.offset)| 0)) (and (<= ~elem~0.base 0) (<= 0 ~elem~0.base) .cse0 (= ~elem~0.base ~elem~0.offset)))) [2020-09-25 07:49:39,646 INFO L264 CegarLoopResult]: At program point L907(line 907) the Hoare annotation is: (or (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (and (not (= main_~dev2~0.offset main_~dev1~0.offset)) (or (<= (+ main_~dev2~0.offset 1) 0) (< 0 main_~dev2~0.base) (< 0 main_~dev2~0.offset) (<= (+ main_~dev2~0.base 1) 0)) (or (not (= main_~dev1~0.offset 0)) (not (= main_~dev1~0.base 0))) (= ~elem~0.offset 0) (= |old(~elem~0.base)| ~elem~0.base)) (not (= |old(~elem~0.offset)| 0))) [2020-09-25 07:49:39,646 INFO L268 CegarLoopResult]: For program point L906(lines 906 915) no Hoare annotation was computed. [2020-09-25 07:49:39,647 INFO L264 CegarLoopResult]: At program point L907-1(line 907) the Hoare annotation is: (let ((.cse1 (not (= main_~dev2~0.offset main_~dev1~0.offset))) (.cse0 (or (<= (+ main_~dev2~0.offset 1) 0) (< 0 main_~dev2~0.base) (< 0 main_~dev2~0.offset) (<= (+ main_~dev2~0.base 1) 0)))) (or (and .cse0 .cse1 (not (= main_~dev1~0.offset ~elem~0.offset))) (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (not (= |old(~elem~0.offset)| 0)) (and .cse1 .cse0 (= ~elem~0.offset 0) (not (= main_~dev1~0.base 0)) (= |old(~elem~0.base)| ~elem~0.base)))) [2020-09-25 07:49:39,647 INFO L264 CegarLoopResult]: At program point L905(line 905) the Hoare annotation is: (let ((.cse0 (= |old(~elem~0.base)| ~elem~0.base)) (.cse1 (= |old(~elem~0.offset)| ~elem~0.offset))) (or (and (= main_~dev1~0.offset ~guard_malloc_counter~0.offset) (not (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|)) .cse0 .cse1) (and (= main_~dev1~0.base 0) (= main_~dev1~0.offset 0) .cse0 .cse1) (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (not (= |old(~elem~0.offset)| 0)))) [2020-09-25 07:49:39,647 INFO L268 CegarLoopResult]: For program point L906-1(lines 906 915) no Hoare annotation was computed. [2020-09-25 07:49:39,647 INFO L264 CegarLoopResult]: At program point L904(line 904) the Hoare annotation is: (or (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= ~elem~0.offset 0) (= |old(~elem~0.base)| ~elem~0.base)) (not (= |old(~elem~0.offset)| 0))) [2020-09-25 07:49:39,647 INFO L268 CegarLoopResult]: For program point L905-1(line 905) no Hoare annotation was computed. [2020-09-25 07:49:39,647 INFO L268 CegarLoopResult]: For program point L903(line 903) no Hoare annotation was computed. [2020-09-25 07:49:39,648 INFO L268 CegarLoopResult]: For program point L904-1(line 904) no Hoare annotation was computed. [2020-09-25 07:49:39,648 INFO L268 CegarLoopResult]: For program point L905-2(line 905) no Hoare annotation was computed. [2020-09-25 07:49:39,648 INFO L268 CegarLoopResult]: For program point L904-2(line 904) no Hoare annotation was computed. [2020-09-25 07:49:39,648 INFO L264 CegarLoopResult]: At program point __getMemoryENTRY(lines 869 876) the Hoare annotation is: (or (not (= |__getMemory_#in~size| 8)) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|)) (not (= ~elem~0.base ~elem~0.offset)) (not (= ~elem~0.offset 0))) [2020-09-25 07:49:39,648 INFO L268 CegarLoopResult]: For program point __getMemoryEXIT(lines 869 876) no Hoare annotation was computed. [2020-09-25 07:49:39,648 INFO L268 CegarLoopResult]: For program point __getMemoryFINAL(lines 869 876) no Hoare annotation was computed. [2020-09-25 07:49:39,649 INFO L268 CegarLoopResult]: For program point L875(line 875) no Hoare annotation was computed. [2020-09-25 07:49:39,649 INFO L268 CegarLoopResult]: For program point L874(line 874) no Hoare annotation was computed. [2020-09-25 07:49:39,649 INFO L268 CegarLoopResult]: For program point L873(line 873) no Hoare annotation was computed. [2020-09-25 07:49:39,649 INFO L268 CegarLoopResult]: For program point L872(line 872) no Hoare annotation was computed. [2020-09-25 07:49:39,649 INFO L268 CegarLoopResult]: For program point L873-1(lines 873 874) no Hoare annotation was computed. [2020-09-25 07:49:39,649 INFO L268 CegarLoopResult]: For program point L871(line 871) no Hoare annotation was computed. [2020-09-25 07:49:39,650 INFO L268 CegarLoopResult]: For program point L872-1(line 872) no Hoare annotation was computed. [2020-09-25 07:49:39,650 INFO L268 CegarLoopResult]: For program point L873-2(line 873) no Hoare annotation was computed. [2020-09-25 07:49:39,650 INFO L268 CegarLoopResult]: For program point L873-3(line 873) no Hoare annotation was computed. [2020-09-25 07:49:39,650 INFO L264 CegarLoopResult]: At program point L871-2(line 871) the Hoare annotation is: (or (not (= |__getMemory_#in~size| 8)) (not (= ~elem~0.base ~elem~0.offset)) (not (= ~elem~0.offset 0))) [2020-09-25 07:49:39,650 INFO L268 CegarLoopResult]: For program point L871-3(line 871) no Hoare annotation was computed. [2020-09-25 07:49:39,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:49:39 BoogieIcfgContainer [2020-09-25 07:49:39,662 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 07:49:39,669 INFO L168 Benchmark]: Toolchain (without parser) took 35924.60 ms. Allocated memory was 140.0 MB in the beginning and 449.3 MB in the end (delta: 309.3 MB). Free memory was 102.5 MB in the beginning and 86.1 MB in the end (delta: 16.3 MB). Peak memory consumption was 325.7 MB. Max. memory is 7.1 GB. [2020-09-25 07:49:39,671 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-09-25 07:49:39,673 INFO L168 Benchmark]: CACSL2BoogieTranslator took 732.51 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.6 MB in the beginning and 168.1 MB in the end (delta: -66.5 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2020-09-25 07:49:39,673 INFO L168 Benchmark]: Boogie Preprocessor took 127.02 ms. Allocated memory is still 203.4 MB. Free memory was 168.1 MB in the beginning and 165.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-09-25 07:49:39,674 INFO L168 Benchmark]: RCFGBuilder took 693.60 ms. Allocated memory is still 203.4 MB. Free memory was 165.2 MB in the beginning and 118.8 MB in the end (delta: 46.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 7.1 GB. [2020-09-25 07:49:39,678 INFO L168 Benchmark]: TraceAbstraction took 34357.83 ms. Allocated memory was 203.4 MB in the beginning and 449.3 MB in the end (delta: 245.9 MB). Free memory was 117.9 MB in the beginning and 86.1 MB in the end (delta: 31.7 MB). Peak memory consumption was 277.6 MB. Max. memory is 7.1 GB. [2020-09-25 07:49:39,692 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 732.51 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.6 MB in the beginning and 168.1 MB in the end (delta: -66.5 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.02 ms. Allocated memory is still 203.4 MB. Free memory was 168.1 MB in the beginning and 165.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 693.60 ms. Allocated memory is still 203.4 MB. Free memory was 165.2 MB in the beginning and 118.8 MB in the end (delta: 46.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 34357.83 ms. Allocated memory was 203.4 MB in the beginning and 449.3 MB in the end (delta: 245.9 MB). Free memory was 117.9 MB in the beginning and 86.1 MB in the end (delta: 31.7 MB). Peak memory consumption was 277.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 32.8s, OverallIterations: 8, TraceHistogramMax: 3, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 464 SDtfs, 750 SDslu, 1117 SDs, 0 SdLazy, 2751 SolverSat, 244 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 238 GetRequests, 89 SyntacticMatches, 3 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 28 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 74 PreInvPairs, 84 NumberOfFragments, 459 HoareAnnotationTreeSize, 74 FomulaSimplifications, 226 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 18 FomulaSimplificationsInter, 1476 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 26.3s InterpolantComputationTime, 535 NumberOfCodeBlocks, 535 NumberOfCodeBlocksAsserted, 8 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 correct! Received shutdown request...