/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 NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test30-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:22:24,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:22:24,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:22:24,521 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:22:24,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:22:24,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:22:24,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:22:24,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:22:24,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:22:24,544 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:22:24,545 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:22:24,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:22:24,547 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:22:24,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:22:24,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:22:24,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:22:24,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:22:24,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:22:24,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:22:24,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:22:24,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:22:24,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:22:24,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:22:24,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:22:24,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 11:22:24,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:22:24,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:22:24,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:22:24,589 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 11:22:24,631 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:22:24,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:22:24,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:22:24,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:22:24,633 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:22:24,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:22:24,634 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:22:24,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:22:24,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:22:24,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:22:24,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:22:24,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:22:24,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:22:24,635 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:22:24,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:22:24,638 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:22:24,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:22:24,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:22:24,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:22:24,639 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:22:24,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:22:24,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:22:24,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:22:24,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:22:24,640 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:22:24,640 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:22:24,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:22:24,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:22:24,641 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:22:24,641 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 -> NOT_INCREMENTALLY [2020-07-21 11:22:24,932 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:22:24,947 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:22:24,950 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:22:24,952 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:22:24,952 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:22:24,953 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test30-2.c [2020-07-21 11:22:25,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/819353aad/0f23157cd5fd4f8092d89fa516855d03/FLAGa42560b15 [2020-07-21 11:22:25,600 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:22:25,601 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test30-2.c [2020-07-21 11:22:25,609 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/819353aad/0f23157cd5fd4f8092d89fa516855d03/FLAGa42560b15 [2020-07-21 11:22:25,919 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/819353aad/0f23157cd5fd4f8092d89fa516855d03 [2020-07-21 11:22:25,928 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:22:25,932 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:22:25,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:22:25,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:22:25,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:22:25,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:22:25" (1/1) ... [2020-07-21 11:22:25,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@761e7545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:22:25, skipping insertion in model container [2020-07-21 11:22:25,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:22:25" (1/1) ... [2020-07-21 11:22:25,950 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:22:25,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:22:26,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:22:26,151 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:22:26,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:22:26,186 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:22:26,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:22:26 WrapperNode [2020-07-21 11:22:26,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:22:26,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:22:26,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:22:26,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:22:26,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:22:26" (1/1) ... [2020-07-21 11:22:26,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:22:26" (1/1) ... [2020-07-21 11:22:26,292 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:22:26" (1/1) ... [2020-07-21 11:22:26,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:22:26" (1/1) ... [2020-07-21 11:22:26,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:22:26" (1/1) ... [2020-07-21 11:22:26,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:22:26" (1/1) ... [2020-07-21 11:22:26,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:22:26" (1/1) ... [2020-07-21 11:22:26,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:22:26,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:22:26,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:22:26,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:22:26,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:22:26" (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 11:22:26,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:22:26,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:22:26,373 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2020-07-21 11:22:26,374 INFO L138 BoogieDeclarations]: Found implementation of procedure assign2 [2020-07-21 11:22:26,374 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:22:26,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:22:26,374 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2020-07-21 11:22:26,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 11:22:26,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 11:22:26,374 INFO L130 BoogieDeclarations]: Found specification of procedure assign2 [2020-07-21 11:22:26,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 11:22:26,375 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:22:26,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:22:26,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 11:22:26,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 11:22:26,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-21 11:22:26,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:22:26,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 11:22:26,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 11:22:26,685 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:22:26,685 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 11:22:26,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:22:26 BoogieIcfgContainer [2020-07-21 11:22:26,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:22:26,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:22:26,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:22:26,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:22:26,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:22:25" (1/3) ... [2020-07-21 11:22:26,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4361bcf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:22:26, skipping insertion in model container [2020-07-21 11:22:26,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:22:26" (2/3) ... [2020-07-21 11:22:26,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4361bcf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:22:26, skipping insertion in model container [2020-07-21 11:22:26,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:22:26" (3/3) ... [2020-07-21 11:22:26,699 INFO L109 eAbstractionObserver]: Analyzing ICFG test30-2.c [2020-07-21 11:22:26,712 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:22:26,720 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:22:26,738 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:22:26,766 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:22:26,767 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:22:26,767 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:22:26,767 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:22:26,767 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:22:26,767 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:22:26,767 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:22:26,768 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:22:26,789 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-07-21 11:22:26,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-21 11:22:26,796 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:22:26,797 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:22:26,798 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:22:26,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:22:26,804 INFO L82 PathProgramCache]: Analyzing trace with hash -457594768, now seen corresponding path program 1 times [2020-07-21 11:22:26,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:22:26,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1326187011] [2020-07-21 11:22:26,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 11:22:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 11:22:26,987 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 11:22:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 11:22:27,048 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 11:22:27,090 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 11:22:27,092 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 11:22:27,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:22:27,342 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 10 could not be translated for associated CType STRUCT~~dummy?a~*INT?b~*INT# [2020-07-21 11:22:27,344 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 7 could not be translated for associated CType STRUCT~~dummy?a~*INT?b~*INT# [2020-07-21 11:22:27,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:22:27 BoogieIcfgContainer [2020-07-21 11:22:27,359 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:22:27,362 INFO L168 Benchmark]: Toolchain (without parser) took 1430.96 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 102.9 MB in the beginning and 137.4 MB in the end (delta: -34.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 7.1 GB. [2020-07-21 11:22:27,363 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 11:22:27,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.43 ms. Allocated memory is still 138.9 MB. Free memory was 102.5 MB in the beginning and 92.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-21 11:22:27,365 INFO L168 Benchmark]: Boogie Preprocessor took 120.05 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 92.5 MB in the beginning and 180.5 MB in the end (delta: -88.1 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2020-07-21 11:22:27,366 INFO L168 Benchmark]: RCFGBuilder took 382.50 ms. Allocated memory is still 202.9 MB. Free memory was 180.5 MB in the beginning and 164.1 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. [2020-07-21 11:22:27,367 INFO L168 Benchmark]: TraceAbstraction took 667.58 ms. Allocated memory is still 202.9 MB. Free memory was 164.1 MB in the beginning and 137.4 MB in the end (delta: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2020-07-21 11:22:27,372 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 254.43 ms. Allocated memory is still 138.9 MB. Free memory was 102.5 MB in the beginning and 92.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.05 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 92.5 MB in the beginning and 180.5 MB in the end (delta: -88.1 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 382.50 ms. Allocated memory is still 202.9 MB. Free memory was 180.5 MB in the beginning and 164.1 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 667.58 ms. Allocated memory is still 202.9 MB. Free memory was 164.1 MB in the beginning and 137.4 MB in the end (delta: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 10 could not be translated for associated CType STRUCT~~dummy?a~*INT?b~*INT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 7 could not be translated for associated CType STRUCT~~dummy?a~*INT?b~*INT# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 31]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L3] int a = 1, b; [L5-L7] struct dummy { int *a, *b; } global = {&a, &b}; VAL [\old(a)=13, \old(a)=12, \old(b)=11, \old(b)=9, \old(global)=null, \old(global)=null, a={10452:0}, b={10454:0}, global={10453:0}] [L21] struct dummy *pd = &global; VAL [a={10452:0}, b={10454:0}, global={10453:0}, pd={10453:0}] [L23] CALL assign2(&pd->a, &pd->b) VAL [a={10452:0}, b={10454:0}, global={10453:0}, pa={10453:0}, pb={10453:4}] [L16] EXPR \read(**pb) [L16] EXPR \read(**pb) VAL [\read(**pb)={10454:0}, \read(**pb)={10454:0}, a={10452:0}, b={10454:0}, global={10453:0}, pa={10453:0}, pa={10453:0}, pb={10453:4}, pb={10453:4}] [L16] CALL assign(*pb, *pb) VAL [a={10452:0}, b={10454:0}, global={10453:0}, pa={10454:0}, pb={10454:0}] [L11] EXPR \read(*pb) [L11] *pa = *pb [L16] RET assign(*pb, *pb) VAL [\read(**pb)={10454:0}, \read(**pb)={10454:0}, a={10452:0}, b={10454:0}, global={10453:0}, pa={10453:0}, pa={10453:0}, pb={10453:4}, pb={10453:4}] [L23] RET assign2(&pd->a, &pd->b) VAL [a={10452:0}, b={10454:0}, global={10453:0}, pd={10453:0}] [L25] EXPR \read(a) [L25] EXPR \read(b) VAL [\read(a)=1, \read(b)=0, a={10452:0}, b={10454:0}, global={10453:0}, pd={10453:0}] [L25] COND TRUE a != b [L31] __VERIFIER_error() VAL [a={10452:0}, b={10454:0}, global={10453:0}, pd={10453:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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...