/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=WIDEST --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/alt_test.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:13:48,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:13:48,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:13:48,943 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:13:48,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:13:48,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:13:48,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:13:48,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:13:48,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:13:48,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:13:48,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:13:48,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:13:48,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:13:48,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:13:48,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:13:48,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:13:48,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:13:48,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:13:48,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:13:48,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:13:48,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:13:48,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:13:48,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:13:48,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:13:48,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:13:48,971 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:13:48,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:13:48,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:13:48,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:13:48,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:13:48,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:13:48,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:13:48,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:13:48,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:13:48,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:13:48,981 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:13:48,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:13:48,982 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:13:48,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:13:48,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:13:48,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:13:48,985 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 03:13:49,012 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:13:49,012 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:13:49,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:13:49,014 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:13:49,014 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:13:49,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:13:49,015 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:13:49,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:13:49,015 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:13:49,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:13:49,016 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:13:49,016 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:13:49,016 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:13:49,016 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:13:49,016 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:13:49,017 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:13:49,017 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:13:49,017 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:13:49,017 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:13:49,018 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:13:49,018 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:13:49,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:13:49,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:13:49,018 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:13:49,019 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:13:49,019 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:13:49,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:13:49,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:13:49,019 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:13:49,020 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 03:13:49,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:13:49,522 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:13:49,526 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:13:49,528 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:13:49,529 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:13:49,530 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/alt_test.i [2020-09-25 03:13:49,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/535e31cc4/31e9f55c677749f6b7ca046160e8671e/FLAGca30fb51c [2020-09-25 03:13:50,230 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:13:50,230 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/alt_test.i [2020-09-25 03:13:50,247 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/535e31cc4/31e9f55c677749f6b7ca046160e8671e/FLAGca30fb51c [2020-09-25 03:13:50,480 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/535e31cc4/31e9f55c677749f6b7ca046160e8671e [2020-09-25 03:13:50,494 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:13:50,501 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:13:50,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:13:50,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:13:50,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:13:50,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:13:50" (1/1) ... [2020-09-25 03:13:50,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5adf6174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:50, skipping insertion in model container [2020-09-25 03:13:50,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:13:50" (1/1) ... [2020-09-25 03:13:50,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:13:50,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:13:51,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:13:51,161 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:13:51,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:13:51,367 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:13:51,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:51 WrapperNode [2020-09-25 03:13:51,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:13:51,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:13:51,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:13:51,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:13:51,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:51" (1/1) ... [2020-09-25 03:13:51,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:51" (1/1) ... [2020-09-25 03:13:51,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:51" (1/1) ... [2020-09-25 03:13:51,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:51" (1/1) ... [2020-09-25 03:13:51,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:51" (1/1) ... [2020-09-25 03:13:51,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:51" (1/1) ... [2020-09-25 03:13:51,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:51" (1/1) ... [2020-09-25 03:13:51,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:13:51,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:13:51,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:13:51,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:13:51,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:51" (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 03:13:51,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:13:51,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:13:51,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-25 03:13:51,541 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:13:51,541 INFO L138 BoogieDeclarations]: Found implementation of procedure l_malloc [2020-09-25 03:13:51,542 INFO L138 BoogieDeclarations]: Found implementation of procedure l_free [2020-09-25 03:13:51,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:13:51,543 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-09-25 03:13:51,544 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-09-25 03:13:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-09-25 03:13:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-09-25 03:13:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-09-25 03:13:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-09-25 03:13:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-09-25 03:13:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-09-25 03:13:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-09-25 03:13:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-09-25 03:13:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-09-25 03:13:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-09-25 03:13:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-09-25 03:13:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-09-25 03:13:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-09-25 03:13:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-09-25 03:13:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-09-25 03:13:51,550 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-09-25 03:13:51,550 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-09-25 03:13:51,550 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-09-25 03:13:51,551 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-09-25 03:13:51,551 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-09-25 03:13:51,551 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-09-25 03:13:51,551 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-09-25 03:13:51,551 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-09-25 03:13:51,551 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-09-25 03:13:51,551 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-09-25 03:13:51,552 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-09-25 03:13:51,552 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-09-25 03:13:51,552 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-09-25 03:13:51,552 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-09-25 03:13:51,552 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-09-25 03:13:51,553 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-09-25 03:13:51,553 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-09-25 03:13:51,553 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-09-25 03:13:51,553 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-09-25 03:13:51,553 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-09-25 03:13:51,553 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-09-25 03:13:51,555 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 03:13:51,555 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-09-25 03:13:51,555 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-09-25 03:13:51,555 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-09-25 03:13:51,555 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-09-25 03:13:51,556 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-09-25 03:13:51,557 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-09-25 03:13:51,557 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-09-25 03:13:51,557 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-09-25 03:13:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-09-25 03:13:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-09-25 03:13:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-09-25 03:13:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-09-25 03:13:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-09-25 03:13:51,559 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-09-25 03:13:51,559 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-09-25 03:13:51,559 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-09-25 03:13:51,559 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-09-25 03:13:51,559 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-09-25 03:13:51,559 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-09-25 03:13:51,560 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-09-25 03:13:51,560 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-09-25 03:13:51,560 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-09-25 03:13:51,560 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-09-25 03:13:51,560 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-09-25 03:13:51,561 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-09-25 03:13:51,562 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-09-25 03:13:51,563 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-09-25 03:13:51,563 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-09-25 03:13:51,563 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-09-25 03:13:51,563 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-09-25 03:13:51,563 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-09-25 03:13:51,564 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-09-25 03:13:51,564 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-09-25 03:13:51,564 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-09-25 03:13:51,564 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-09-25 03:13:51,564 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-09-25 03:13:51,564 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-09-25 03:13:51,564 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-09-25 03:13:51,565 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-09-25 03:13:51,565 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-09-25 03:13:51,565 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-09-25 03:13:51,565 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-09-25 03:13:51,565 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-09-25 03:13:51,566 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-09-25 03:13:51,566 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-09-25 03:13:51,566 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-09-25 03:13:51,566 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-09-25 03:13:51,566 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-09-25 03:13:51,567 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-09-25 03:13:51,567 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-09-25 03:13:51,567 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-09-25 03:13:51,567 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-09-25 03:13:51,567 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-09-25 03:13:51,567 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-09-25 03:13:51,567 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-09-25 03:13:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-09-25 03:13:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-09-25 03:13:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-09-25 03:13:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-09-25 03:13:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-09-25 03:13:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-09-25 03:13:51,569 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-09-25 03:13:51,569 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 03:13:51,570 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 03:13:51,570 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 03:13:51,570 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 03:13:51,570 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 03:13:51,570 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 03:13:51,570 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 03:13:51,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 03:13:51,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 03:13:51,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 03:13:51,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 03:13:51,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 03:13:51,573 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 03:13:51,573 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 03:13:51,573 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 03:13:51,573 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 03:13:51,573 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 03:13:51,573 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 03:13:51,574 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 03:13:51,575 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 03:13:51,579 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 03:13:51,579 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 03:13:51,579 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 03:13:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 03:13:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 03:13:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 03:13:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 03:13:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 03:13:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 03:13:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 03:13:51,582 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 03:13:51,582 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 03:13:51,582 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 03:13:51,582 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 03:13:51,582 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 03:13:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 03:13:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 03:13:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 03:13:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 03:13:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 03:13:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 03:13:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 03:13:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 03:13:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 03:13:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 03:13:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 03:13:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 03:13:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 03:13:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 03:13:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 03:13:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 03:13:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 03:13:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 03:13:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 03:13:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 03:13:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 03:13:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 03:13:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 03:13:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 03:13:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 03:13:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 03:13:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 03:13:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 03:13:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 03:13:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2020-09-25 03:13:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 03:13:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 03:13:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 03:13:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 03:13:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 03:13:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 03:13:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 03:13:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 03:13:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 03:13:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 03:13:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 03:13:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 03:13:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 03:13:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 03:13:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 03:13:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 03:13:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 03:13:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 03:13:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 03:13:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 03:13:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 03:13:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 03:13:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 03:13:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 03:13:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 03:13:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 03:13:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 03:13:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 03:13:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 03:13:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 03:13:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 03:13:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 03:13:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 03:13:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 03:13:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2020-09-25 03:13:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 03:13:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-25 03:13:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure l_malloc [2020-09-25 03:13:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure l_free [2020-09-25 03:13:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:13:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 03:13:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 03:13:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:13:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:13:52,241 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:13:52,241 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 03:13:52,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:13:52 BoogieIcfgContainer [2020-09-25 03:13:52,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:13:52,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:13:52,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:13:52,260 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:13:52,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:13:50" (1/3) ... [2020-09-25 03:13:52,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661971dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:13:52, skipping insertion in model container [2020-09-25 03:13:52,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:51" (2/3) ... [2020-09-25 03:13:52,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661971dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:13:52, skipping insertion in model container [2020-09-25 03:13:52,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:13:52" (3/3) ... [2020-09-25 03:13:52,278 INFO L109 eAbstractionObserver]: Analyzing ICFG alt_test.i [2020-09-25 03:13:52,290 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:13:52,301 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:13:52,324 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:13:52,352 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:13:52,352 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:13:52,352 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:13:52,352 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:13:52,353 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:13:52,353 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:13:52,353 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:13:52,353 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:13:52,377 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-09-25 03:13:52,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-25 03:13:52,386 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:52,387 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, 1, 1, 1, 1, 1] [2020-09-25 03:13:52,388 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:52,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:52,396 INFO L82 PathProgramCache]: Analyzing trace with hash -464537204, now seen corresponding path program 1 times [2020-09-25 03:13:52,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:52,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1657475937] [2020-09-25 03:13:52,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:52,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:52,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:53,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:53,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 03:13:53,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:13:53,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 755 [2020-09-25 03:13:53,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:53,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:13:53,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 03:13:53,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 03:13:53,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-25 03:13:53,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:53,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:53,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:53,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:53,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:13:53,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:53,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 03:13:53,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:53,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:53,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:53,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:53,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:13:53,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:13:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:53,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:53,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:53,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:53,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:13:53,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:13:53,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-25 03:13:53,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:53,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:13:53,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:53,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:13:53,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:53,839 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 03:13:53,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1657475937] [2020-09-25 03:13:53,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:53,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 03:13:53,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044019264] [2020-09-25 03:13:53,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 03:13:53,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:53,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 03:13:53,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:13:53,881 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 10 states. [2020-09-25 03:13:54,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:54,438 INFO L93 Difference]: Finished difference Result 76 states and 88 transitions. [2020-09-25 03:13:54,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 03:13:54,440 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-09-25 03:13:54,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:54,454 INFO L225 Difference]: With dead ends: 76 [2020-09-25 03:13:54,455 INFO L226 Difference]: Without dead ends: 37 [2020-09-25 03:13:54,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2020-09-25 03:13:54,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-09-25 03:13:54,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 33. [2020-09-25 03:13:54,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-25 03:13:54,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-09-25 03:13:54,518 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 26 [2020-09-25 03:13:54,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:54,519 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-09-25 03:13:54,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 03:13:54,519 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-09-25 03:13:54,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-25 03:13:54,520 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:54,520 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, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:54,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:13:54,521 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:54,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:54,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1961589014, now seen corresponding path program 1 times [2020-09-25 03:13:54,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:54,522 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [469842784] [2020-09-25 03:13:54,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:54,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:54,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:54,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:54,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 03:13:54,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:54,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 03:13:54,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:54,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:13:54,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 03:13:54,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:13:54,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:54,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:54,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:54,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:54,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:13:54,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:54,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:13:54,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:54,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:54,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:54,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:54,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:54,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:13:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:54,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:54,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:54,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 03:13:54,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:54,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 03:13:54,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:54,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:54,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:54,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:13:54,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:54,748 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 03:13:54,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [469842784] [2020-09-25 03:13:54,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:54,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:13:54,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350359612] [2020-09-25 03:13:54,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:13:54,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:54,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:13:54,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:13:54,753 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 5 states. [2020-09-25 03:13:54,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:54,858 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2020-09-25 03:13:54,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 03:13:54,859 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-09-25 03:13:54,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:54,860 INFO L225 Difference]: With dead ends: 40 [2020-09-25 03:13:54,861 INFO L226 Difference]: Without dead ends: 36 [2020-09-25 03:13:54,862 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:13:54,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-25 03:13:54,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-09-25 03:13:54,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-25 03:13:54,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-09-25 03:13:54,870 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 27 [2020-09-25 03:13:54,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:54,871 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-09-25 03:13:54,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:13:54,871 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-09-25 03:13:54,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 03:13:54,872 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:54,872 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 03:13:54,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:13:54,873 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:54,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:54,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1381039993, now seen corresponding path program 1 times [2020-09-25 03:13:54,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:54,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1815519749] [2020-09-25 03:13:54,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:54,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:54,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:54,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:55,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:55,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:55,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 03:13:55,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:13:55,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1076 [2020-09-25 03:13:55,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:55,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:13:55,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 03:13:55,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 03:13:55,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:56,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:56,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:56,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:56,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:13:56,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:56,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:13:56,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:56,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:56,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:56,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:56,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:56,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:13:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:56,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:56,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:56,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 03:13:56,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:56,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 03:13:56,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:56,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:13:56,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:56,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:13:56,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:56,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 03:13:56,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:56,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:56,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:56,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:13:56,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:56,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 03:13:56,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:56,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:13:56,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:13:56,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:13:56,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:56,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:13:56,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1815519749] [2020-09-25 03:13:56,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:56,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 03:13:56,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171844678] [2020-09-25 03:13:56,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 03:13:56,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:56,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 03:13:56,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-25 03:13:56,238 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 12 states. [2020-09-25 03:13:56,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:56,535 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2020-09-25 03:13:56,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 03:13:56,535 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 34 [2020-09-25 03:13:56,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:56,537 INFO L225 Difference]: With dead ends: 51 [2020-09-25 03:13:56,537 INFO L226 Difference]: Without dead ends: 36 [2020-09-25 03:13:56,538 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2020-09-25 03:13:56,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-25 03:13:56,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-09-25 03:13:56,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-25 03:13:56,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2020-09-25 03:13:56,544 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 34 [2020-09-25 03:13:56,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:56,545 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2020-09-25 03:13:56,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 03:13:56,545 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2020-09-25 03:13:56,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 03:13:56,546 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:56,547 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 03:13:56,547 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:13:56,547 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:56,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:56,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1342711683, now seen corresponding path program 1 times [2020-09-25 03:13:56,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:56,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794826777] [2020-09-25 03:13:56,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 03:13:56,566 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 03:13:56,567 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 03:13:56,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:13:56,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:13:56 BoogieIcfgContainer [2020-09-25 03:13:56,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 03:13:56,601 INFO L168 Benchmark]: Toolchain (without parser) took 6101.76 ms. Allocated memory was 139.5 MB in the beginning and 248.5 MB in the end (delta: 109.1 MB). Free memory was 101.5 MB in the beginning and 101.5 MB in the end (delta: -1.3 kB). Peak memory consumption was 109.1 MB. Max. memory is 7.1 GB. [2020-09-25 03:13:56,604 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 139.5 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-25 03:13:56,605 INFO L168 Benchmark]: CACSL2BoogieTranslator took 866.97 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 153.6 MB in the end (delta: -52.7 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. [2020-09-25 03:13:56,606 INFO L168 Benchmark]: Boogie Preprocessor took 74.18 ms. Allocated memory is still 202.9 MB. Free memory was 153.6 MB in the beginning and 150.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-09-25 03:13:56,607 INFO L168 Benchmark]: RCFGBuilder took 807.55 ms. Allocated memory is still 202.9 MB. Free memory was 150.2 MB in the beginning and 91.0 MB in the end (delta: 59.2 MB). Peak memory consumption was 59.2 MB. Max. memory is 7.1 GB. [2020-09-25 03:13:56,611 INFO L168 Benchmark]: TraceAbstraction took 4340.18 ms. Allocated memory was 202.9 MB in the beginning and 248.5 MB in the end (delta: 45.6 MB). Free memory was 90.3 MB in the beginning and 101.5 MB in the end (delta: -11.2 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. [2020-09-25 03:13:56,617 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 139.5 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 866.97 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 153.6 MB in the end (delta: -52.7 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 74.18 ms. Allocated memory is still 202.9 MB. Free memory was 153.6 MB in the beginning and 150.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 807.55 ms. Allocated memory is still 202.9 MB. Free memory was 150.2 MB in the beginning and 91.0 MB in the end (delta: 59.2 MB). Peak memory consumption was 59.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4340.18 ms. Allocated memory was 202.9 MB in the beginning and 248.5 MB in the end (delta: 45.6 MB). Free memory was 90.3 MB in the beginning and 101.5 MB in the end (delta: -11.2 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1601]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1606] int globalState = 0; [L1612] CALL, EXPR l_malloc(sizeof(int)) [L1619] void *retVal = malloc(size); [L1620] COND TRUE retVal != ((void *)0) [L1621] globalState=1 [L1622] return retVal; [L1612] RET, EXPR l_malloc(sizeof(int)) [L1612] int *a = (int*) l_malloc(sizeof(int)); [L1613] CALL l_free(a) [L1629] COND TRUE ptr!=((void *)0) [L1629] (globalState == 1) ? (0) : __blast_assert () [L1630] globalState = 0 [L1613] RET l_free(a) [L1614] CALL l_free(a) [L1629] COND TRUE ptr!=((void *)0) [L1629] (globalState == 1) ? (0) : __blast_assert () [L1629] CALL __blast_assert () [L1601] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.2s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 83 SDtfs, 106 SDslu, 284 SDs, 0 SdLazy, 373 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 9691 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...