/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 19:16:05,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 19:16:05,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 19:16:05,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 19:16:05,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 19:16:05,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 19:16:05,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 19:16:05,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 19:16:05,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 19:16:05,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 19:16:05,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 19:16:05,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 19:16:05,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 19:16:05,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 19:16:05,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 19:16:05,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 19:16:05,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 19:16:05,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 19:16:05,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 19:16:05,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 19:16:05,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 19:16:05,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 19:16:05,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 19:16:05,657 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 19:16:05,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 19:16:05,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 19:16:05,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 19:16:05,682 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 19:16:05,683 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 19:16:05,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 19:16:05,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 19:16:05,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 19:16:05,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 19:16:05,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 19:16:05,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 19:16:05,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 19:16:05,698 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-12-22 19:16:05,731 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 19:16:05,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 19:16:05,733 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 19:16:05,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 19:16:05,735 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 19:16:05,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 19:16:05,735 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-22 19:16:05,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 19:16:05,735 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 19:16:05,736 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-22 19:16:05,737 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-22 19:16:05,737 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-22 19:16:05,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 19:16:05,738 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-22 19:16:05,738 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 19:16:05,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 19:16:05,738 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 19:16:05,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 19:16:05,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 19:16:05,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 19:16:05,739 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 19:16:05,739 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 19:16:05,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 19:16:05,740 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 19:16:05,740 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 19:16:06,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 19:16:06,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 19:16:06,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 19:16:06,221 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 19:16:06,222 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 19:16:06,223 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2020-12-22 19:16:06,313 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13dc643a4/980b294b9274429f93beeaf22a5390c6/FLAG2acd07fc8 [2020-12-22 19:16:07,031 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 19:16:07,032 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2020-12-22 19:16:07,054 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13dc643a4/980b294b9274429f93beeaf22a5390c6/FLAG2acd07fc8 [2020-12-22 19:16:07,260 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13dc643a4/980b294b9274429f93beeaf22a5390c6 [2020-12-22 19:16:07,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 19:16:07,266 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 19:16:07,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 19:16:07,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 19:16:07,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 19:16:07,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:16:07" (1/1) ... [2020-12-22 19:16:07,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b610a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:07, skipping insertion in model container [2020-12-22 19:16:07,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:16:07" (1/1) ... [2020-12-22 19:16:07,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 19:16:07,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 19:16:07,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 19:16:07,657 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 19:16:07,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 19:16:07,837 INFO L208 MainTranslator]: Completed translation [2020-12-22 19:16:07,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:07 WrapperNode [2020-12-22 19:16:07,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 19:16:07,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 19:16:07,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 19:16:07,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 19:16:07,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:07" (1/1) ... [2020-12-22 19:16:07,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:07" (1/1) ... [2020-12-22 19:16:07,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 19:16:07,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 19:16:07,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 19:16:07,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 19:16:07,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:07" (1/1) ... [2020-12-22 19:16:07,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:07" (1/1) ... [2020-12-22 19:16:07,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:07" (1/1) ... [2020-12-22 19:16:07,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:07" (1/1) ... [2020-12-22 19:16:07,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:07" (1/1) ... [2020-12-22 19:16:07,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:07" (1/1) ... [2020-12-22 19:16:07,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:07" (1/1) ... [2020-12-22 19:16:08,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 19:16:08,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 19:16:08,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 19:16:08,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 19:16:08,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:07" (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 [2020-12-22 19:16:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 19:16:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 19:16:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 19:16:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 19:16:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 19:16:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 19:16:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 19:16:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 19:16:08,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 19:16:08,475 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 19:16:08,476 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 19:16:08,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:16:08 BoogieIcfgContainer [2020-12-22 19:16:08,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 19:16:08,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 19:16:08,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 19:16:08,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 19:16:08,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 07:16:07" (1/3) ... [2020-12-22 19:16:08,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bca89fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:16:08, skipping insertion in model container [2020-12-22 19:16:08,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:07" (2/3) ... [2020-12-22 19:16:08,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bca89fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:16:08, skipping insertion in model container [2020-12-22 19:16:08,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:16:08" (3/3) ... [2020-12-22 19:16:08,504 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2020-12-22 19:16:08,522 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 19:16:08,530 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2020-12-22 19:16:08,578 INFO L253 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2020-12-22 19:16:08,610 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 19:16:08,610 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-22 19:16:08,611 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 19:16:08,611 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 19:16:08,611 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 19:16:08,611 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 19:16:08,611 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 19:16:08,612 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 19:16:08,627 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-12-22 19:16:08,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-22 19:16:08,634 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:16:08,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-22 19:16:08,635 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-22 19:16:08,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:16:08,642 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2020-12-22 19:16:08,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:16:08,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575875522] [2020-12-22 19:16:08,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:16:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:16:08,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:16:08,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575875522] [2020-12-22 19:16:08,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:16:08,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:16:08,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103732897] [2020-12-22 19:16:08,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:16:08,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:16:08,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:16:08,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:16:08,944 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 3 states. [2020-12-22 19:16:09,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:16:09,030 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2020-12-22 19:16:09,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:16:09,033 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-22 19:16:09,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:16:09,042 INFO L225 Difference]: With dead ends: 20 [2020-12-22 19:16:09,042 INFO L226 Difference]: Without dead ends: 18 [2020-12-22 19:16:09,044 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:16:09,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-12-22 19:16:09,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-12-22 19:16:09,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-12-22 19:16:09,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-12-22 19:16:09,079 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 3 [2020-12-22 19:16:09,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:16:09,079 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-12-22 19:16:09,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:16:09,080 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-12-22 19:16:09,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-22 19:16:09,080 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:16:09,081 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-22 19:16:09,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 19:16:09,081 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-22 19:16:09,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:16:09,082 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2020-12-22 19:16:09,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:16:09,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276152339] [2020-12-22 19:16:09,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:16:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:16:09,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:16:09,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276152339] [2020-12-22 19:16:09,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:16:09,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:16:09,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444419584] [2020-12-22 19:16:09,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:16:09,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:16:09,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:16:09,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:16:09,143 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 3 states. [2020-12-22 19:16:09,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:16:09,168 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2020-12-22 19:16:09,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:16:09,168 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-22 19:16:09,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:16:09,169 INFO L225 Difference]: With dead ends: 13 [2020-12-22 19:16:09,170 INFO L226 Difference]: Without dead ends: 13 [2020-12-22 19:16:09,171 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:16:09,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-12-22 19:16:09,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-12-22 19:16:09,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-22 19:16:09,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2020-12-22 19:16:09,188 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 3 [2020-12-22 19:16:09,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:16:09,188 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2020-12-22 19:16:09,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:16:09,189 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2020-12-22 19:16:09,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 19:16:09,190 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:16:09,190 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:16:09,190 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 19:16:09,191 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-22 19:16:09,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:16:09,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1114117971, now seen corresponding path program 1 times [2020-12-22 19:16:09,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:16:09,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385829725] [2020-12-22 19:16:09,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:16:09,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:16:09,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:16:09,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385829725] [2020-12-22 19:16:09,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:16:09,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 19:16:09,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55662470] [2020-12-22 19:16:09,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 19:16:09,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:16:09,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 19:16:09,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 19:16:09,259 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 4 states. [2020-12-22 19:16:09,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:16:09,304 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2020-12-22 19:16:09,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 19:16:09,305 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-22 19:16:09,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:16:09,306 INFO L225 Difference]: With dead ends: 17 [2020-12-22 19:16:09,306 INFO L226 Difference]: Without dead ends: 17 [2020-12-22 19:16:09,307 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:16:09,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-12-22 19:16:09,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2020-12-22 19:16:09,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-12-22 19:16:09,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2020-12-22 19:16:09,311 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2020-12-22 19:16:09,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:16:09,312 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2020-12-22 19:16:09,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 19:16:09,312 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-12-22 19:16:09,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 19:16:09,313 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:16:09,313 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:16:09,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 19:16:09,314 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-22 19:16:09,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:16:09,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1261881331, now seen corresponding path program 1 times [2020-12-22 19:16:09,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:16:09,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849483777] [2020-12-22 19:16:09,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:16:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 19:16:09,349 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 19:16:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 19:16:09,399 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 19:16:09,440 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 19:16:09,440 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 19:16:09,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 19:16:09,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 07:16:09 BoogieIcfgContainer [2020-12-22 19:16:09,475 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 19:16:09,475 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 19:16:09,475 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 19:16:09,476 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 19:16:09,478 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:16:08" (3/4) ... [2020-12-22 19:16:09,483 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-22 19:16:09,483 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 19:16:09,488 INFO L168 Benchmark]: Toolchain (without parser) took 2218.43 ms. Allocated memory was 164.6 MB in the beginning and 201.3 MB in the end (delta: 36.7 MB). Free memory was 120.1 MB in the beginning and 165.2 MB in the end (delta: -45.1 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 19:16:09,489 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 164.6 MB. Free memory is still 137.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 19:16:09,491 INFO L168 Benchmark]: CACSL2BoogieTranslator took 567.83 ms. Allocated memory is still 164.6 MB. Free memory was 119.9 MB in the beginning and 145.6 MB in the end (delta: -25.8 MB). Peak memory consumption was 8.2 MB. Max. memory is 8.0 GB. [2020-12-22 19:16:09,491 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.36 ms. Allocated memory is still 164.6 MB. Free memory was 145.6 MB in the beginning and 143.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 19:16:09,494 INFO L168 Benchmark]: Boogie Preprocessor took 68.73 ms. Allocated memory is still 164.6 MB. Free memory was 143.8 MB in the beginning and 142.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 19:16:09,495 INFO L168 Benchmark]: RCFGBuilder took 478.21 ms. Allocated memory is still 164.6 MB. Free memory was 142.4 MB in the beginning and 125.7 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2020-12-22 19:16:09,502 INFO L168 Benchmark]: TraceAbstraction took 988.74 ms. Allocated memory was 164.6 MB in the beginning and 201.3 MB in the end (delta: 36.7 MB). Free memory was 125.2 MB in the beginning and 165.7 MB in the end (delta: -40.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 19:16:09,503 INFO L168 Benchmark]: Witness Printer took 7.76 ms. Allocated memory is still 201.3 MB. Free memory was 165.7 MB in the beginning and 165.2 MB in the end (delta: 526.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 19:16:09,516 INFO L339 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 164.6 MB. Free memory is still 137.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 567.83 ms. Allocated memory is still 164.6 MB. Free memory was 119.9 MB in the beginning and 145.6 MB in the end (delta: -25.8 MB). Peak memory consumption was 8.2 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 90.36 ms. Allocated memory is still 164.6 MB. Free memory was 145.6 MB in the beginning and 143.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 68.73 ms. Allocated memory is still 164.6 MB. Free memory was 143.8 MB in the beginning and 142.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 478.21 ms. Allocated memory is still 164.6 MB. Free memory was 142.4 MB in the beginning and 125.7 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 988.74 ms. Allocated memory was 164.6 MB in the beginning and 201.3 MB in the end (delta: 36.7 MB). Free memory was 125.2 MB in the beginning and 165.7 MB in the end (delta: -40.5 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 7.76 ms. Allocated memory is still 201.3 MB. Free memory was 165.7 MB in the beginning and 165.2 MB in the end (delta: 526.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 524]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 524. Possible FailurePath: [L526-L533] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L534] data.p0 = malloc(37U) [L535] COND FALSE !(__VERIFIER_nondet_int()) [L538] data.str.p2 = 30 [L540] EXPR data.str.p2 [L540] COND FALSE !(25 > data.str.p2) [L543] return 0; [L543] return 0; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 11 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 29 SDtfs, 26 SDslu, 17 SDs, 0 SdLazy, 41 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 203 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...