/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 NUM_FUNCTIONS --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/test30-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 13:54:24,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 13:54:24,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 13:54:24,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 13:54:24,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 13:54:24,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 13:54:24,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 13:54:24,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 13:54:24,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 13:54:24,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 13:54:24,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 13:54:24,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 13:54:24,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 13:54:24,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 13:54:24,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 13:54:24,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 13:54:24,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 13:54:24,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 13:54:24,762 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 13:54:24,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 13:54:24,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 13:54:24,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 13:54:24,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 13:54:24,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 13:54:24,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 13:54:24,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 13:54:24,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 13:54:24,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 13:54:24,798 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 [2020-07-20 13:54:24,840 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 13:54:24,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 13:54:24,841 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 13:54:24,841 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 13:54:24,842 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 13:54:24,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 13:54:24,842 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 13:54:24,842 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 13:54:24,842 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 13:54:24,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 13:54:24,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 13:54:24,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 13:54:24,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 13:54:24,843 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 13:54:24,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 13:54:24,843 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 13:54:24,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 13:54:24,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 13:54:24,844 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 13:54:24,844 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 13:54:24,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 13:54:24,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 13:54:24,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 13:54:24,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 13:54:24,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 13:54:24,851 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 13:54:24,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:54:24,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 13:54:24,851 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 13:54:24,851 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 -> NUM_FUNCTIONS 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 [2020-07-20 13:54:25,145 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 13:54:25,169 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 13:54:25,172 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 13:54:25,176 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 13:54:25,177 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 13:54:25,178 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test30-2.c [2020-07-20 13:54:25,262 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3204831b/116a8b4db89c4020b17a5ffb470ed0e1/FLAGe52ee9cc9 [2020-07-20 13:54:25,780 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 13:54:25,781 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test30-2.c [2020-07-20 13:54:25,788 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3204831b/116a8b4db89c4020b17a5ffb470ed0e1/FLAGe52ee9cc9 [2020-07-20 13:54:26,153 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3204831b/116a8b4db89c4020b17a5ffb470ed0e1 [2020-07-20 13:54:26,162 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 13:54:26,165 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 13:54:26,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 13:54:26,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 13:54:26,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 13:54:26,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:54:26" (1/1) ... [2020-07-20 13:54:26,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@417e1210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:54:26, skipping insertion in model container [2020-07-20 13:54:26,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:54:26" (1/1) ... [2020-07-20 13:54:26,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 13:54:26,201 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 13:54:26,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:54:26,396 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 13:54:26,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:54:26,430 INFO L208 MainTranslator]: Completed translation [2020-07-20 13:54:26,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:54:26 WrapperNode [2020-07-20 13:54:26,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 13:54:26,431 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 13:54:26,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 13:54:26,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 13:54:26,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:54:26" (1/1) ... [2020-07-20 13:54:26,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:54:26" (1/1) ... [2020-07-20 13:54:26,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:54:26" (1/1) ... [2020-07-20 13:54:26,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:54:26" (1/1) ... [2020-07-20 13:54:26,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:54:26" (1/1) ... [2020-07-20 13:54:26,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:54:26" (1/1) ... [2020-07-20 13:54:26,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:54:26" (1/1) ... [2020-07-20 13:54:26,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 13:54:26,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 13:54:26,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 13:54:26,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 13:54:26,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:54:26" (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 [2020-07-20 13:54:26,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 13:54:26,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 13:54:26,627 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2020-07-20 13:54:26,627 INFO L138 BoogieDeclarations]: Found implementation of procedure assign2 [2020-07-20 13:54:26,627 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 13:54:26,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 13:54:26,627 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2020-07-20 13:54:26,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 13:54:26,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 13:54:26,628 INFO L130 BoogieDeclarations]: Found specification of procedure assign2 [2020-07-20 13:54:26,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 13:54:26,628 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 13:54:26,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 13:54:26,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 13:54:26,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 13:54:26,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-20 13:54:26,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 13:54:26,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 13:54:26,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 13:54:26,869 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 13:54:26,869 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 13:54:26,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:54:26 BoogieIcfgContainer [2020-07-20 13:54:26,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 13:54:26,875 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 13:54:26,875 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 13:54:26,879 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 13:54:26,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:54:26" (1/3) ... [2020-07-20 13:54:26,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15aaa27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:54:26, skipping insertion in model container [2020-07-20 13:54:26,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:54:26" (2/3) ... [2020-07-20 13:54:26,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15aaa27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:54:26, skipping insertion in model container [2020-07-20 13:54:26,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:54:26" (3/3) ... [2020-07-20 13:54:26,884 INFO L109 eAbstractionObserver]: Analyzing ICFG test30-2.c [2020-07-20 13:54:26,897 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 13:54:26,906 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 13:54:26,925 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 13:54:26,958 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 13:54:26,958 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 13:54:26,958 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 13:54:26,959 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 13:54:26,959 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 13:54:26,959 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 13:54:26,959 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 13:54:26,960 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 13:54:26,993 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-07-20 13:54:27,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-20 13:54:27,002 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:54:27,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:54:27,003 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:54:27,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:54:27,012 INFO L82 PathProgramCache]: Analyzing trace with hash -457594768, now seen corresponding path program 1 times [2020-07-20 13:54:27,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:54:27,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [162992457] [2020-07-20 13:54:27,025 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 [2020-07-20 13:54:27,222 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:54:27,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 13:54:27,224 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 13:54:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 13:54:27,256 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 13:54:27,301 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 13:54:27,302 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 13:54:27,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:54:27,550 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 9 could not be translated for associated CType STRUCT~~dummy?a~*INT?b~*INT# [2020-07-20 13:54:27,551 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 10 could not be translated for associated CType STRUCT~~dummy?a~*INT?b~*INT# [2020-07-20 13:54:27,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:54:27 BoogieIcfgContainer [2020-07-20 13:54:27,566 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 13:54:27,570 INFO L168 Benchmark]: Toolchain (without parser) took 1404.35 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 101.9 MB in the beginning and 136.3 MB in the end (delta: -34.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2020-07-20 13:54:27,571 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 145.8 MB. Free memory is still 120.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 13:54:27,572 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.17 ms. Allocated memory is still 145.8 MB. Free memory was 101.4 MB in the beginning and 91.2 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-07-20 13:54:27,573 INFO L168 Benchmark]: Boogie Preprocessor took 122.72 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 91.2 MB in the beginning and 181.5 MB in the end (delta: -90.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-20 13:54:27,574 INFO L168 Benchmark]: RCFGBuilder took 319.43 ms. Allocated memory is still 203.4 MB. Free memory was 181.1 MB in the beginning and 164.5 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. [2020-07-20 13:54:27,575 INFO L168 Benchmark]: TraceAbstraction took 691.07 ms. Allocated memory is still 203.4 MB. Free memory was 164.5 MB in the beginning and 136.3 MB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2020-07-20 13:54:27,579 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 145.8 MB. Free memory is still 120.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 264.17 ms. Allocated memory is still 145.8 MB. Free memory was 101.4 MB in the beginning and 91.2 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.72 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 91.2 MB in the beginning and 181.5 MB in the end (delta: -90.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 319.43 ms. Allocated memory is still 203.4 MB. Free memory was 181.1 MB in the beginning and 164.5 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 691.07 ms. Allocated memory is still 203.4 MB. Free memory was 164.5 MB in the beginning and 136.3 MB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 9 could not be translated for associated CType STRUCT~~dummy?a~*INT?b~*INT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 10 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)=6, \old(global)=null, \old(global)=null, a={14684:0}, b={14683:0}, global={14682:0}] [L21] struct dummy *pd = &global; VAL [a={14684:0}, b={14683:0}, global={14682:0}, pd={14682:0}] [L23] CALL assign2(&pd->a, &pd->b) VAL [a={14684:0}, b={14683:0}, global={14682:0}, pa={14682:0}, pb={14682:4}] [L16] EXPR \read(**pb) [L16] EXPR \read(**pb) VAL [\read(**pb)={14683:0}, \read(**pb)={14683:0}, a={14684:0}, b={14683:0}, global={14682:0}, pa={14682:0}, pa={14682:0}, pb={14682:4}, pb={14682:4}] [L16] CALL assign(*pb, *pb) VAL [a={14684:0}, b={14683:0}, global={14682:0}, pa={14683:0}, pb={14683:0}] [L11] EXPR \read(*pb) [L11] *pa = *pb [L16] RET assign(*pb, *pb) VAL [\read(**pb)={14683:0}, \read(**pb)={14683:0}, a={14684:0}, b={14683:0}, global={14682:0}, pa={14682:0}, pa={14682:0}, pb={14682:4}, pb={14682:4}] [L23] RET assign2(&pd->a, &pd->b) VAL [a={14684:0}, b={14683:0}, global={14682:0}, pd={14682:0}] [L25] EXPR \read(a) [L25] EXPR \read(b) VAL [\read(a)=1, \read(b)=0, a={14684:0}, b={14683:0}, global={14682:0}, pd={14682:0}] [L25] COND TRUE a != b [L31] __VERIFIER_error() VAL [a={14684:0}, b={14683:0}, global={14682:0}, pd={14682:0}] - 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 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...