/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -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-d623d84 [2020-07-21 22:39:34,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 22:39:34,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 22:39:34,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 22:39:34,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 22:39:34,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 22:39:34,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 22:39:34,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 22:39:34,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 22:39:34,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 22:39:34,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 22:39:34,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 22:39:34,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:39:34,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:39:34,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:39:34,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:39:34,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:39:34,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:39:34,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:39:34,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:39:34,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:39:34,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:39:34,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:39:34,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:39:34,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 22:39:34,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 22:39:34,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 22:39:34,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 22:39:34,705 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 22:39:34,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 22:39:34,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 22:39:34,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 22:39:34,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 22:39:34,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 22:39:34,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 22:39:34,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 22:39:34,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 22:39:34,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 22:39:34,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 22:39:34,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 22:39:34,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 22:39:34,720 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 22:39:34,741 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:39:34,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:39:34,744 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:39:34,745 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:39:34,745 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:39:34,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:39:34,746 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:39:34,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:39:34,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:39:34,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:39:34,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:39:34,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:39:34,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:39:34,747 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:39:34,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:39:34,748 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:39:34,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:39:34,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:39:34,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:39:34,749 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:39:34,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:39:34,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:39:34,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:39:34,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:39:34,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:39:34,750 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:39:34,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:39:34,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:39:34,751 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:39:34,751 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 -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 22:39:35,154 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:39:35,192 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:39:35,197 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:39:35,201 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:39:35,202 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:39:35,204 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/alt_test.i [2020-07-21 22:39:35,327 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56cba0d20/aebde546a4a44a3ab44d39055a13c5d1/FLAGf34ea5d90 [2020-07-21 22:39:36,282 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:39:36,283 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/alt_test.i [2020-07-21 22:39:36,305 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56cba0d20/aebde546a4a44a3ab44d39055a13c5d1/FLAGf34ea5d90 [2020-07-21 22:39:36,823 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56cba0d20/aebde546a4a44a3ab44d39055a13c5d1 [2020-07-21 22:39:36,842 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:39:36,847 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:39:36,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:39:36,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:39:36,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:39:36,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:39:36" (1/1) ... [2020-07-21 22:39:36,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46d1183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:39:36, skipping insertion in model container [2020-07-21 22:39:36,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:39:36" (1/1) ... [2020-07-21 22:39:36,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:39:37,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:39:38,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:39:38,124 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:39:38,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:39:38,297 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:39:38,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:39:38 WrapperNode [2020-07-21 22:39:38,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:39:38,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:39:38,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:39:38,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:39:38,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:39:38" (1/1) ... [2020-07-21 22:39:38,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:39:38" (1/1) ... [2020-07-21 22:39:38,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:39:38" (1/1) ... [2020-07-21 22:39:38,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:39:38" (1/1) ... [2020-07-21 22:39:38,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:39:38" (1/1) ... [2020-07-21 22:39:38,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:39:38" (1/1) ... [2020-07-21 22:39:38,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:39:38" (1/1) ... [2020-07-21 22:39:38,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:39:38,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:39:38,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:39:38,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:39:38,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:39:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-21 22:39:38,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:39:38,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:39:38,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-07-21 22:39:38,568 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:39:38,569 INFO L138 BoogieDeclarations]: Found implementation of procedure l_malloc [2020-07-21 22:39:38,570 INFO L138 BoogieDeclarations]: Found implementation of procedure l_free [2020-07-21 22:39:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:39:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-07-21 22:39:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-07-21 22:39:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-07-21 22:39:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-07-21 22:39:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-07-21 22:39:38,575 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-07-21 22:39:38,575 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-07-21 22:39:38,575 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-07-21 22:39:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-07-21 22:39:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-07-21 22:39:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-07-21 22:39:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-07-21 22:39:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-07-21 22:39:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-07-21 22:39:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-07-21 22:39:38,579 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-07-21 22:39:38,579 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-07-21 22:39:38,579 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-07-21 22:39:38,581 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-07-21 22:39:38,581 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-07-21 22:39:38,581 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-07-21 22:39:38,581 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-07-21 22:39:38,582 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-07-21 22:39:38,582 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-07-21 22:39:38,582 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-07-21 22:39:38,583 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-07-21 22:39:38,583 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-07-21 22:39:38,583 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-07-21 22:39:38,583 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-07-21 22:39:38,584 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-07-21 22:39:38,584 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-07-21 22:39:38,584 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-07-21 22:39:38,584 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-07-21 22:39:38,584 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-07-21 22:39:38,584 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-07-21 22:39:38,585 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-07-21 22:39:38,585 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-07-21 22:39:38,585 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-07-21 22:39:38,585 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 22:39:38,585 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-07-21 22:39:38,586 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-07-21 22:39:38,586 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-07-21 22:39:38,586 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-07-21 22:39:38,586 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-07-21 22:39:38,586 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-07-21 22:39:38,586 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-07-21 22:39:38,587 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-07-21 22:39:38,587 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-07-21 22:39:38,587 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-07-21 22:39:38,587 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-07-21 22:39:38,587 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-07-21 22:39:38,588 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-07-21 22:39:38,588 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-07-21 22:39:38,588 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-07-21 22:39:38,589 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-07-21 22:39:38,589 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-07-21 22:39:38,589 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-07-21 22:39:38,590 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-07-21 22:39:38,590 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-07-21 22:39:38,590 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-07-21 22:39:38,590 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-07-21 22:39:38,590 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-07-21 22:39:38,590 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-07-21 22:39:38,591 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-07-21 22:39:38,591 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-07-21 22:39:38,592 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-07-21 22:39:38,593 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-07-21 22:39:38,593 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-07-21 22:39:38,593 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-07-21 22:39:38,594 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-07-21 22:39:38,594 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-07-21 22:39:38,595 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-07-21 22:39:38,596 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-07-21 22:39:38,596 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-07-21 22:39:38,596 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-07-21 22:39:38,596 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-07-21 22:39:38,598 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-07-21 22:39:38,598 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-07-21 22:39:38,598 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-07-21 22:39:38,598 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-07-21 22:39:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-07-21 22:39:38,601 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-07-21 22:39:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-07-21 22:39:38,603 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-07-21 22:39:38,603 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-07-21 22:39:38,603 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-07-21 22:39:38,603 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-07-21 22:39:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-07-21 22:39:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-07-21 22:39:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-07-21 22:39:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-07-21 22:39:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-07-21 22:39:38,605 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-07-21 22:39:38,605 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-07-21 22:39:38,605 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-07-21 22:39:38,605 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-07-21 22:39:38,606 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-07-21 22:39:38,606 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-07-21 22:39:38,606 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-07-21 22:39:38,606 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-07-21 22:39:38,607 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-07-21 22:39:38,609 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-21 22:39:38,609 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-21 22:39:38,609 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-21 22:39:38,609 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-21 22:39:38,610 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-21 22:39:38,610 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-21 22:39:38,610 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-21 22:39:38,611 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-21 22:39:38,611 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-21 22:39:38,612 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-21 22:39:38,613 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-21 22:39:38,613 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-21 22:39:38,614 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-21 22:39:38,614 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-21 22:39:38,614 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-21 22:39:38,614 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-21 22:39:38,615 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-21 22:39:38,615 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-21 22:39:38,615 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-21 22:39:38,615 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-21 22:39:38,615 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-21 22:39:38,616 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-21 22:39:38,617 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-21 22:39:38,617 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-21 22:39:38,619 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-21 22:39:38,624 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-21 22:39:38,625 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-21 22:39:38,625 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-21 22:39:38,625 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-21 22:39:38,627 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-21 22:39:38,627 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-21 22:39:38,627 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-21 22:39:38,628 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-21 22:39:38,628 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-21 22:39:38,628 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-21 22:39:38,639 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-21 22:39:38,639 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-21 22:39:38,639 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-21 22:39:38,639 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-21 22:39:38,640 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-21 22:39:38,640 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-21 22:39:38,640 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-21 22:39:38,640 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-21 22:39:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-21 22:39:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-21 22:39:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-21 22:39:38,644 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-21 22:39:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-21 22:39:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-21 22:39:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-21 22:39:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 22:39:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-21 22:39:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-21 22:39:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 22:39:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-21 22:39:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-21 22:39:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-21 22:39:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-21 22:39:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-21 22:39:38,648 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-21 22:39:38,648 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-21 22:39:38,648 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 22:39:38,648 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-21 22:39:38,648 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-21 22:39:38,649 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2020-07-21 22:39:38,649 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-21 22:39:38,649 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-21 22:39:38,649 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-21 22:39:38,649 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-21 22:39:38,650 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-21 22:39:38,650 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-21 22:39:38,650 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-21 22:39:38,650 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-21 22:39:38,651 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-21 22:39:38,651 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-21 22:39:38,651 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-21 22:39:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-21 22:39:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-21 22:39:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-21 22:39:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-21 22:39:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-21 22:39:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-21 22:39:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-21 22:39:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-21 22:39:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-21 22:39:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-21 22:39:38,654 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-21 22:39:38,654 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-21 22:39:38,654 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-21 22:39:38,654 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-21 22:39:38,655 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-21 22:39:38,655 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-21 22:39:38,655 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-21 22:39:38,656 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-21 22:39:38,656 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-21 22:39:38,656 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-21 22:39:38,656 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-21 22:39:38,656 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-21 22:39:38,657 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-21 22:39:38,657 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2020-07-21 22:39:38,657 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-21 22:39:38,658 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-07-21 22:39:38,658 INFO L130 BoogieDeclarations]: Found specification of procedure l_malloc [2020-07-21 22:39:38,658 INFO L130 BoogieDeclarations]: Found specification of procedure l_free [2020-07-21 22:39:38,658 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:39:38,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 22:39:38,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 22:39:38,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:39:38,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:39:39,419 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:39:39,420 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 22:39:39,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:39:39 BoogieIcfgContainer [2020-07-21 22:39:39,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:39:39,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:39:39,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:39:39,435 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:39:39,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:39:36" (1/3) ... [2020-07-21 22:39:39,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36999f73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:39:39, skipping insertion in model container [2020-07-21 22:39:39,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:39:38" (2/3) ... [2020-07-21 22:39:39,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36999f73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:39:39, skipping insertion in model container [2020-07-21 22:39:39,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:39:39" (3/3) ... [2020-07-21 22:39:39,440 INFO L109 eAbstractionObserver]: Analyzing ICFG alt_test.i [2020-07-21 22:39:39,459 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:39:39,474 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:39:39,501 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:39:39,536 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:39:39,537 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:39:39,537 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:39:39,537 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:39:39,537 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:39:39,537 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:39:39,538 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:39:39,538 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:39:39,570 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-07-21 22:39:39,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-21 22:39:39,582 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:39:39,584 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:39:39,585 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:39:39,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:39:39,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1074821315, now seen corresponding path program 1 times [2020-07-21 22:39:39,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:39:39,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [332504221] [2020-07-21 22:39:39,638 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:39:39,993 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:39:39,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:39:40,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 22:39:40,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:39:40,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:39:40,115 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:39:40,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [332504221] [2020-07-21 22:39:40,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:39:40,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:39:40,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428104481] [2020-07-21 22:39:40,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:39:40,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:39:40,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:39:40,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:39:40,161 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 3 states. [2020-07-21 22:39:40,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:39:40,214 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2020-07-21 22:39:40,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:39:40,218 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-07-21 22:39:40,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:39:40,233 INFO L225 Difference]: With dead ends: 51 [2020-07-21 22:39:40,234 INFO L226 Difference]: Without dead ends: 24 [2020-07-21 22:39:40,241 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:39:40,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-07-21 22:39:40,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-07-21 22:39:40,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-07-21 22:39:40,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-07-21 22:39:40,306 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 19 [2020-07-21 22:39:40,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:39:40,306 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-07-21 22:39:40,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:39:40,307 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-07-21 22:39:40,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-21 22:39:40,308 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:39:40,308 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:39:40,524 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:39:40,525 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:39:40,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:39:40,526 INFO L82 PathProgramCache]: Analyzing trace with hash 373756737, now seen corresponding path program 1 times [2020-07-21 22:39:40,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:39:40,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [886618360] [2020-07-21 22:39:40,527 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:39:40,763 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:39:40,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:39:40,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:39:40,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:39:40,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:39:40,795 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:39:40,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [886618360] [2020-07-21 22:39:40,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:39:40,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:39:40,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318495218] [2020-07-21 22:39:40,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:39:40,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:39:40,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:39:40,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:39:40,801 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 3 states. [2020-07-21 22:39:40,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:39:40,823 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2020-07-21 22:39:40,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:39:40,825 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-07-21 22:39:40,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:39:40,828 INFO L225 Difference]: With dead ends: 31 [2020-07-21 22:39:40,828 INFO L226 Difference]: Without dead ends: 27 [2020-07-21 22:39:40,830 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:39:40,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-07-21 22:39:40,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-07-21 22:39:40,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-07-21 22:39:40,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-07-21 22:39:40,842 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 19 [2020-07-21 22:39:40,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:39:40,843 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-07-21 22:39:40,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:39:40,844 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-07-21 22:39:40,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-21 22:39:40,845 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:39:40,845 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] [2020-07-21 22:39:41,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:39:41,061 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:39:41,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:39:41,061 INFO L82 PathProgramCache]: Analyzing trace with hash -568191789, now seen corresponding path program 1 times [2020-07-21 22:39:41,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:39:41,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [275873852] [2020-07-21 22:39:41,064 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:39:41,361 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:39:41,361 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:39:41,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 17 conjunts are in the unsatisfiable core [2020-07-21 22:39:41,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:39:41,470 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:39:41,470 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:39:41,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [275873852] [2020-07-21 22:39:41,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:39:41,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-21 22:39:41,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700708015] [2020-07-21 22:39:41,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-21 22:39:41,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:39:41,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-21 22:39:41,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:39:41,475 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 9 states. [2020-07-21 22:39:41,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:39:41,624 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2020-07-21 22:39:41,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:39:41,625 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-07-21 22:39:41,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:39:41,627 INFO L225 Difference]: With dead ends: 40 [2020-07-21 22:39:41,627 INFO L226 Difference]: Without dead ends: 27 [2020-07-21 22:39:41,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-07-21 22:39:41,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-07-21 22:39:41,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-07-21 22:39:41,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-07-21 22:39:41,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2020-07-21 22:39:41,637 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 25 [2020-07-21 22:39:41,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:39:41,638 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2020-07-21 22:39:41,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-21 22:39:41,638 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2020-07-21 22:39:41,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-21 22:39:41,639 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:39:41,640 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] [2020-07-21 22:39:41,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:39:41,855 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:39:41,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:39:41,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1903526385, now seen corresponding path program 1 times [2020-07-21 22:39:41,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:39:41,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [884291720] [2020-07-21 22:39:41,858 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:39:42,078 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:39:42,078 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 22:39:42,079 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 22:39:42,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 22:39:42,101 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 22:39:42,184 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 22:39:42,185 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 22:39:42,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:39:42,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:39:42 BoogieIcfgContainer [2020-07-21 22:39:42,465 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:39:42,470 INFO L168 Benchmark]: Toolchain (without parser) took 5622.94 ms. Allocated memory was 135.8 MB in the beginning and 256.9 MB in the end (delta: 121.1 MB). Free memory was 97.4 MB in the beginning and 142.5 MB in the end (delta: -45.2 MB). Peak memory consumption was 76.0 MB. Max. memory is 7.1 GB. [2020-07-21 22:39:42,471 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 135.8 MB. Free memory was 117.6 MB in the beginning and 117.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 22:39:42,472 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1451.31 ms. Allocated memory was 135.8 MB in the beginning and 199.8 MB in the end (delta: 64.0 MB). Free memory was 97.2 MB in the beginning and 149.4 MB in the end (delta: -52.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2020-07-21 22:39:42,473 INFO L168 Benchmark]: Boogie Preprocessor took 116.16 ms. Allocated memory is still 199.8 MB. Free memory was 149.4 MB in the beginning and 146.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-07-21 22:39:42,474 INFO L168 Benchmark]: RCFGBuilder took 1008.80 ms. Allocated memory is still 199.8 MB. Free memory was 146.5 MB in the beginning and 88.1 MB in the end (delta: 58.4 MB). Peak memory consumption was 58.4 MB. Max. memory is 7.1 GB. [2020-07-21 22:39:42,475 INFO L168 Benchmark]: TraceAbstraction took 3036.26 ms. Allocated memory was 199.8 MB in the beginning and 256.9 MB in the end (delta: 57.1 MB). Free memory was 87.4 MB in the beginning and 142.5 MB in the end (delta: -55.1 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-07-21 22:39:42,479 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 135.8 MB. Free memory was 117.6 MB in the beginning and 117.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1451.31 ms. Allocated memory was 135.8 MB in the beginning and 199.8 MB in the end (delta: 64.0 MB). Free memory was 97.2 MB in the beginning and 149.4 MB in the end (delta: -52.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.16 ms. Allocated memory is still 199.8 MB. Free memory was 149.4 MB in the beginning and 146.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1008.80 ms. Allocated memory is still 199.8 MB. Free memory was 146.5 MB in the beginning and 88.1 MB in the end (delta: 58.4 MB). Peak memory consumption was 58.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3036.26 ms. Allocated memory was 199.8 MB in the beginning and 256.9 MB in the end (delta: 57.1 MB). Free memory was 87.4 MB in the beginning and 142.5 MB in the end (delta: -55.1 MB). Peak memory consumption was 2.0 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; VAL [\old(globalState)=7, globalState=0] [L1612] CALL, EXPR l_malloc(sizeof(int)) VAL [\old(globalState)=0, \old(size)=4, globalState=0] [L1619] void *retVal = malloc(size); VAL [\old(globalState)=0, \old(size)=4, globalState=0, malloc(size)={-1:0}, retVal={-1:0}, size=4] [L1620] COND TRUE retVal != ((void *)0) [L1621] globalState=1 VAL [\old(globalState)=0, \old(size)=4, globalState=1, malloc(size)={-1:0}, retVal={-1:0}, size=4] [L1622] return retVal; VAL [\old(globalState)=0, \old(size)=4, \result={-1:0}, globalState=1, malloc(size)={-1:0}, retVal={-1:0}, size=4] [L1612] RET, EXPR l_malloc(sizeof(int)) VAL [\old(argc)=9, \old(globalState)=0, argc=9, argv={10:8}, argv={10:8}, globalState=1, l_malloc(sizeof(int))={-1:0}] [L1612] int *a = (int*) l_malloc(sizeof(int)); [L1613] CALL l_free(a) VAL [\old(globalState)=1, globalState=1, ptr={-1:0}] [L1629] COND TRUE ptr!=((void *)0) VAL [\old(globalState)=1, globalState=1, ptr={-1:0}, ptr={-1:0}] [L1629] (globalState == 1) ? (0) : __blast_assert () VAL [\old(globalState)=1, globalState=1, ptr={-1:0}, ptr={-1:0}] [L1630] globalState = 0 [L1613] RET l_free(a) VAL [\old(argc)=9, \old(globalState)=0, a={-1:0}, argc=9, argv={10:8}, argv={10:8}, globalState=0] [L1614] CALL l_free(a) VAL [\old(globalState)=0, globalState=0, ptr={-1:0}] [L1629] COND TRUE ptr!=((void *)0) VAL [\old(globalState)=0, globalState=0, ptr={-1:0}, ptr={-1:0}] [L1629] (globalState == 1) ? (0) : __blast_assert () VAL [\old(globalState)=0, globalState=0, ptr={-1:0}, ptr={-1:0}] [L1629] CALL __blast_assert () VAL [\old(globalState)=0, globalState=0] [L1601] __VERIFIER_error() VAL [\old(globalState)=0, globalState=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.8s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 70 SDtfs, 18 SDslu, 152 SDs, 0 SdLazy, 56 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 89 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 2166 SizeOfPredicates, 6 NumberOfNonLiveVariables, 310 ConjunctsInSsa, 29 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...