/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/locks/test_locks_14-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 13:34:11,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 13:34:11,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 13:34:11,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 13:34:11,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 13:34:11,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 13:34:11,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 13:34:11,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 13:34:11,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 13:34:11,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 13:34:11,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 13:34:11,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 13:34:11,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 13:34:11,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 13:34:11,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 13:34:11,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 13:34:11,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 13:34:11,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 13:34:11,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 13:34:11,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 13:34:11,993 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 [2021-02-23 13:34:12,069 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 13:34:12,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 13:34:12,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-23 13:34:12,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-23 13:34:12,080 INFO L138 SettingsManager]: * Use SBE=true [2021-02-23 13:34:12,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 13:34:12,081 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 13:34:12,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 13:34:12,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 13:34:12,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 13:34:12,084 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 13:34:12,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 13:34:12,085 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 13:34:12,086 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 13:34:12,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 13:34:12,086 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 13:34:12,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 13:34:12,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 13:34:12,087 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-23 13:34:12,087 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 13:34:12,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 13:34:12,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 13:34:12,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-23 13:34:12,089 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-23 13:34:12,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-23 13:34:12,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-23 13:34:12,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 13:34:12,091 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-23 13:34:12,091 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 13:34:12,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 13:34:12,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 13:34:12,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 13:34:12,757 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 13:34:12,758 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 13:34:12,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_14-2.c [2021-02-23 13:34:12,884 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd35090b3/db15c5ac760f4d93a367a606d5c454ef/FLAG478f01201 [2021-02-23 13:34:13,746 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 13:34:13,747 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_14-2.c [2021-02-23 13:34:13,770 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd35090b3/db15c5ac760f4d93a367a606d5c454ef/FLAG478f01201 [2021-02-23 13:34:14,028 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd35090b3/db15c5ac760f4d93a367a606d5c454ef [2021-02-23 13:34:14,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 13:34:14,051 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 13:34:14,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 13:34:14,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 13:34:14,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 13:34:14,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:34:14" (1/1) ... [2021-02-23 13:34:14,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b0202e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:34:14, skipping insertion in model container [2021-02-23 13:34:14,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:34:14" (1/1) ... [2021-02-23 13:34:14,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 13:34:14,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 13:34:14,364 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_14-2.c[5305,5318] [2021-02-23 13:34:14,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:34:14,401 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 13:34:14,443 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_14-2.c[5305,5318] [2021-02-23 13:34:14,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:34:14,473 INFO L208 MainTranslator]: Completed translation [2021-02-23 13:34:14,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:34:14 WrapperNode [2021-02-23 13:34:14,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 13:34:14,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 13:34:14,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 13:34:14,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 13:34:14,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:34:14" (1/1) ... [2021-02-23 13:34:14,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:34:14" (1/1) ... [2021-02-23 13:34:14,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:34:14" (1/1) ... [2021-02-23 13:34:14,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:34:14" (1/1) ... [2021-02-23 13:34:14,560 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:34:14" (1/1) ... [2021-02-23 13:34:14,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:34:14" (1/1) ... [2021-02-23 13:34:14,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:34:14" (1/1) ... [2021-02-23 13:34:14,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 13:34:14,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 13:34:14,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 13:34:14,602 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 13:34:14,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:34:14" (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 [2021-02-23 13:34:14,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 13:34:14,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 13:34:14,819 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 13:34:14,819 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 13:34:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 13:34:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 13:34:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 13:34:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 13:34:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 13:34:14,821 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 13:34:14,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 13:34:14,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 13:34:14,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 13:34:14,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 13:34:14,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 13:34:14,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 13:34:15,571 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 13:34:15,571 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-23 13:34:15,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:34:15 BoogieIcfgContainer [2021-02-23 13:34:15,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 13:34:15,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 13:34:15,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 13:34:15,583 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 13:34:15,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 01:34:14" (1/3) ... [2021-02-23 13:34:15,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fccd7da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:34:15, skipping insertion in model container [2021-02-23 13:34:15,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:34:14" (2/3) ... [2021-02-23 13:34:15,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fccd7da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:34:15, skipping insertion in model container [2021-02-23 13:34:15,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:34:15" (3/3) ... [2021-02-23 13:34:15,588 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2021-02-23 13:34:15,600 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-23 13:34:15,608 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 13:34:15,640 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 13:34:15,685 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 13:34:15,686 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 13:34:15,686 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-23 13:34:15,686 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 13:34:15,686 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 13:34:15,686 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 13:34:15,687 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 13:34:15,687 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 13:34:15,715 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2021-02-23 13:34:15,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-02-23 13:34:15,727 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:34:15,728 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:34:15,729 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:34:15,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:34:15,737 INFO L82 PathProgramCache]: Analyzing trace with hash -406525713, now seen corresponding path program 1 times [2021-02-23 13:34:15,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:34:15,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386528116] [2021-02-23 13:34:15,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:34:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:34:16,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:34:16,111 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:34:16,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:34:16,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:34:16,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:34:16,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:34:16,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:34:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:34:16,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:34:16,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:34:16,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:34:16,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386528116] [2021-02-23 13:34:16,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:34:16,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 13:34:16,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950226791] [2021-02-23 13:34:16,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 13:34:16,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:34:16,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 13:34:16,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 13:34:16,361 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 4 states. [2021-02-23 13:34:17,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:34:17,079 INFO L93 Difference]: Finished difference Result 156 states and 288 transitions. [2021-02-23 13:34:17,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 13:34:17,085 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2021-02-23 13:34:17,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:34:17,107 INFO L225 Difference]: With dead ends: 156 [2021-02-23 13:34:17,108 INFO L226 Difference]: Without dead ends: 97 [2021-02-23 13:34:17,116 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 13:34:17,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-02-23 13:34:17,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 95. [2021-02-23 13:34:17,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2021-02-23 13:34:17,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 175 transitions. [2021-02-23 13:34:17,205 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 175 transitions. Word has length 25 [2021-02-23 13:34:17,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:34:17,206 INFO L480 AbstractCegarLoop]: Abstraction has 95 states and 175 transitions. [2021-02-23 13:34:17,206 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 13:34:17,206 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 175 transitions. [2021-02-23 13:34:17,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-02-23 13:34:17,208 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:34:17,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:34:17,208 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 13:34:17,208 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:34:17,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:34:17,210 INFO L82 PathProgramCache]: Analyzing trace with hash -406532905, now seen corresponding path program 1 times [2021-02-23 13:34:17,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:34:17,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006134934] [2021-02-23 13:34:17,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:34:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:34:17,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:34:17,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:34:17,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:34:17,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:34:17,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:34:17,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:34:17,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:34:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:34:17,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:34:17,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:34:17,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:34:17,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006134934] [2021-02-23 13:34:17,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:34:17,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 13:34:17,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851923178] [2021-02-23 13:34:17,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 13:34:17,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:34:17,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 13:34:17,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 13:34:17,373 INFO L87 Difference]: Start difference. First operand 95 states and 175 transitions. Second operand 4 states. [2021-02-23 13:34:17,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:34:17,680 INFO L93 Difference]: Finished difference Result 98 states and 178 transitions. [2021-02-23 13:34:17,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 13:34:17,681 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2021-02-23 13:34:17,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:34:17,684 INFO L225 Difference]: With dead ends: 98 [2021-02-23 13:34:17,684 INFO L226 Difference]: Without dead ends: 96 [2021-02-23 13:34:17,687 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 13:34:17,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-02-23 13:34:17,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2021-02-23 13:34:17,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2021-02-23 13:34:17,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 176 transitions. [2021-02-23 13:34:17,729 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 176 transitions. Word has length 25 [2021-02-23 13:34:17,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:34:17,730 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 176 transitions. [2021-02-23 13:34:17,731 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 13:34:17,731 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 176 transitions. [2021-02-23 13:34:17,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-02-23 13:34:17,732 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:34:17,733 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:34:17,733 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 13:34:17,733 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:34:17,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:34:17,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1994873615, now seen corresponding path program 1 times [2021-02-23 13:34:17,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:34:17,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672329213] [2021-02-23 13:34:17,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:34:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 13:34:17,787 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 13:34:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 13:34:17,849 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 13:34:17,934 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-23 13:34:17,935 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 13:34:17,939 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 13:34:18,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 01:34:18 BoogieIcfgContainer [2021-02-23 13:34:18,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 13:34:18,037 INFO L168 Benchmark]: Toolchain (without parser) took 4001.44 ms. Allocated memory is still 160.4 MB. Free memory was 141.1 MB in the beginning and 63.8 MB in the end (delta: 77.2 MB). Peak memory consumption was 75.7 MB. Max. memory is 8.0 GB. [2021-02-23 13:34:18,038 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 160.4 MB. Free memory is still 133.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 13:34:18,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 421.31 ms. Allocated memory is still 160.4 MB. Free memory was 140.0 MB in the beginning and 128.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-02-23 13:34:18,041 INFO L168 Benchmark]: Boogie Preprocessor took 120.32 ms. Allocated memory is still 160.4 MB. Free memory was 128.7 MB in the beginning and 126.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-23 13:34:18,042 INFO L168 Benchmark]: RCFGBuilder took 973.55 ms. Allocated memory is still 160.4 MB. Free memory was 126.7 MB in the beginning and 119.7 MB in the end (delta: 7.0 MB). Peak memory consumption was 6.5 MB. Max. memory is 8.0 GB. [2021-02-23 13:34:18,043 INFO L168 Benchmark]: TraceAbstraction took 2457.08 ms. Allocated memory is still 160.4 MB. Free memory was 119.4 MB in the beginning and 63.8 MB in the end (delta: 55.6 MB). Peak memory consumption was 56.6 MB. Max. memory is 8.0 GB. [2021-02-23 13:34:18,048 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 160.4 MB. Free memory is still 133.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 421.31 ms. Allocated memory is still 160.4 MB. Free memory was 140.0 MB in the beginning and 128.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 120.32 ms. Allocated memory is still 160.4 MB. Free memory was 128.7 MB in the beginning and 126.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 973.55 ms. Allocated memory is still 160.4 MB. Free memory was 126.7 MB in the beginning and 119.7 MB in the end (delta: 7.0 MB). Peak memory consumption was 6.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2457.08 ms. Allocated memory is still 160.4 MB. Free memory was 119.4 MB in the beginning and 63.8 MB in the end (delta: 55.6 MB). Peak memory consumption was 56.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 219]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L51] int cond; VAL [p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L53] COND TRUE 1 [L54] cond = __VERIFIER_nondet_int() [L55] COND FALSE !(cond == 0) [L58] lk1 = 0 [L60] lk2 = 0 [L62] lk3 = 0 [L64] lk4 = 0 [L66] lk5 = 0 [L68] lk6 = 0 [L70] lk7 = 0 [L72] lk8 = 0 [L74] lk9 = 0 [L76] lk10 = 0 [L78] lk11 = 0 [L80] lk12 = 0 [L82] lk13 = 0 [L84] lk14 = 0 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L88] COND FALSE !(p1 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L92] COND FALSE !(p2 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L96] COND TRUE p3 != 0 [L97] lk3 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L100] COND TRUE p4 != 0 [L101] lk4 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L104] COND TRUE p5 != 0 [L105] lk5 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L108] COND TRUE p6 != 0 [L109] lk6 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L112] COND TRUE p7 != 0 [L113] lk7 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L116] COND TRUE p8 != 0 [L117] lk8 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L120] COND TRUE p9 != 0 [L121] lk9 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L124] COND FALSE !(p10 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L128] COND TRUE p11 != 0 [L129] lk11 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L132] COND TRUE p12 != 0 [L133] lk12 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L136] COND TRUE p13 != 0 [L137] lk13 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L140] COND TRUE p14 != 0 [L141] lk14 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L146] COND FALSE !(p1 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L151] COND FALSE !(p2 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L219] reach_error() VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 245 SDtfs, 321 SDslu, 16 SDs, 0 SdLazy, 185 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 4320 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...