/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-b7b32d2 [2021-02-21 16:08:13,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 16:08:13,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 16:08:13,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-21 16:08:13,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 16:08:13,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 16:08:13,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 16:08:13,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 16:08:13,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 16:08:13,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 16:08:13,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 16:08:13,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 16:08:13,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 16:08:13,153 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 16:08:13,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 16:08:13,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 16:08:13,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 16:08:13,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 16:08:13,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 16:08:13,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 16:08:13,180 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 [2021-02-21 16:08:13,229 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 16:08:13,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 16:08:13,234 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-21 16:08:13,234 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-21 16:08:13,234 INFO L138 SettingsManager]: * Use SBE=true [2021-02-21 16:08:13,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 16:08:13,235 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 16:08:13,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 16:08:13,235 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 16:08:13,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 16:08:13,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 16:08:13,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 16:08:13,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 16:08:13,237 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 16:08:13,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 16:08:13,238 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 16:08:13,238 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 16:08:13,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 16:08:13,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-21 16:08:13,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 16:08:13,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 16:08:13,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 16:08:13,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-21 16:08:13,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-21 16:08:13,240 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-21 16:08:13,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-21 16:08:13,240 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 16:08:13,240 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-21 16:08:13,240 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 16:08:13,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 16:08:13,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 16:08:13,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 16:08:13,656 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 16:08:13,657 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 16:08:13,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_14-2.c [2021-02-21 16:08:13,753 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/965444140/f7d871a53a374ba6814f3650f22ef8d6/FLAGe96326cb2 [2021-02-21 16:08:14,388 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 16:08:14,388 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_14-2.c [2021-02-21 16:08:14,409 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/965444140/f7d871a53a374ba6814f3650f22ef8d6/FLAGe96326cb2 [2021-02-21 16:08:14,769 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/965444140/f7d871a53a374ba6814f3650f22ef8d6 [2021-02-21 16:08:14,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 16:08:14,788 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 16:08:14,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 16:08:14,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 16:08:14,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 16:08:14,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:08:14" (1/1) ... [2021-02-21 16:08:14,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f5f8be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:08:14, skipping insertion in model container [2021-02-21 16:08:14,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:08:14" (1/1) ... [2021-02-21 16:08:14,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 16:08:14,850 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 16:08:15,041 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] [2021-02-21 16:08:15,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:08:15,055 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 16:08:15,088 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] [2021-02-21 16:08:15,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:08:15,105 INFO L208 MainTranslator]: Completed translation [2021-02-21 16:08:15,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:08:15 WrapperNode [2021-02-21 16:08:15,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 16:08:15,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 16:08:15,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 16:08:15,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 16:08:15,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:08:15" (1/1) ... [2021-02-21 16:08:15,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:08:15" (1/1) ... [2021-02-21 16:08:15,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:08:15" (1/1) ... [2021-02-21 16:08:15,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:08:15" (1/1) ... [2021-02-21 16:08:15,138 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:08:15" (1/1) ... [2021-02-21 16:08:15,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:08:15" (1/1) ... [2021-02-21 16:08:15,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:08:15" (1/1) ... [2021-02-21 16:08:15,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 16:08:15,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 16:08:15,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 16:08:15,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 16:08:15,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:08:15" (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 [2021-02-21 16:08:15,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 16:08:15,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 16:08:15,256 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 16:08:15,256 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 16:08:15,256 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 16:08:15,256 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 16:08:15,256 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 16:08:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 16:08:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 16:08:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 16:08:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 16:08:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 16:08:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 16:08:15,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 16:08:15,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 16:08:15,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 16:08:15,716 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 16:08:15,716 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-21 16:08:15,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:08:15 BoogieIcfgContainer [2021-02-21 16:08:15,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 16:08:15,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 16:08:15,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 16:08:15,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 16:08:15,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 04:08:14" (1/3) ... [2021-02-21 16:08:15,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1cf471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:08:15, skipping insertion in model container [2021-02-21 16:08:15,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:08:15" (2/3) ... [2021-02-21 16:08:15,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1cf471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:08:15, skipping insertion in model container [2021-02-21 16:08:15,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:08:15" (3/3) ... [2021-02-21 16:08:15,740 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2021-02-21 16:08:15,751 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-21 16:08:15,756 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 16:08:15,773 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 16:08:15,797 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 16:08:15,797 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 16:08:15,797 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-21 16:08:15,798 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 16:08:15,798 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 16:08:15,798 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 16:08:15,798 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 16:08:15,798 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 16:08:15,816 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2021-02-21 16:08:15,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-02-21 16:08:15,823 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:08:15,824 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] [2021-02-21 16:08:15,824 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:08:15,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:08:15,830 INFO L82 PathProgramCache]: Analyzing trace with hash -406525713, now seen corresponding path program 1 times [2021-02-21 16:08:15,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:08:15,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204907369] [2021-02-21 16:08:15,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:08:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:08:16,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:08:16,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:08:16,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:08:16,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:08:16,194 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:08:16,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:08:16,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:08:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:08:16,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:08:16,259 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:08:16,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:08:16,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204907369] [2021-02-21 16:08:16,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:08:16,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 16:08:16,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272969120] [2021-02-21 16:08:16,275 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 16:08:16,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:08:16,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 16:08:16,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 16:08:16,303 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 4 states. [2021-02-21 16:08:16,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:08:16,770 INFO L93 Difference]: Finished difference Result 156 states and 288 transitions. [2021-02-21 16:08:16,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-21 16:08:16,778 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2021-02-21 16:08:16,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:08:16,788 INFO L225 Difference]: With dead ends: 156 [2021-02-21 16:08:16,789 INFO L226 Difference]: Without dead ends: 97 [2021-02-21 16:08:16,792 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 [2021-02-21 16:08:16,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-02-21 16:08:16,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 95. [2021-02-21 16:08:16,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2021-02-21 16:08:16,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 175 transitions. [2021-02-21 16:08:16,843 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 175 transitions. Word has length 25 [2021-02-21 16:08:16,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:08:16,844 INFO L480 AbstractCegarLoop]: Abstraction has 95 states and 175 transitions. [2021-02-21 16:08:16,844 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 16:08:16,844 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 175 transitions. [2021-02-21 16:08:16,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-02-21 16:08:16,845 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:08:16,846 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] [2021-02-21 16:08:16,846 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 16:08:16,846 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:08:16,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:08:16,847 INFO L82 PathProgramCache]: Analyzing trace with hash -406532905, now seen corresponding path program 1 times [2021-02-21 16:08:16,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:08:16,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734349228] [2021-02-21 16:08:16,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:08:16,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:08:16,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:08:16,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:08:16,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:08:16,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:08:16,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:08:16,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:08:16,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:08:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:08:17,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:08:17,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:08:17,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:08:17,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734349228] [2021-02-21 16:08:17,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:08:17,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 16:08:17,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763080658] [2021-02-21 16:08:17,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 16:08:17,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:08:17,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 16:08:17,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 16:08:17,010 INFO L87 Difference]: Start difference. First operand 95 states and 175 transitions. Second operand 4 states. [2021-02-21 16:08:17,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:08:17,262 INFO L93 Difference]: Finished difference Result 98 states and 178 transitions. [2021-02-21 16:08:17,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-21 16:08:17,263 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2021-02-21 16:08:17,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:08:17,265 INFO L225 Difference]: With dead ends: 98 [2021-02-21 16:08:17,266 INFO L226 Difference]: Without dead ends: 96 [2021-02-21 16:08:17,267 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 [2021-02-21 16:08:17,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-02-21 16:08:17,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2021-02-21 16:08:17,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2021-02-21 16:08:17,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 176 transitions. [2021-02-21 16:08:17,284 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 176 transitions. Word has length 25 [2021-02-21 16:08:17,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:08:17,284 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 176 transitions. [2021-02-21 16:08:17,284 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 16:08:17,284 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 176 transitions. [2021-02-21 16:08:17,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-02-21 16:08:17,286 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:08:17,286 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] [2021-02-21 16:08:17,286 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 16:08:17,286 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:08:17,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:08:17,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1994873615, now seen corresponding path program 1 times [2021-02-21 16:08:17,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:08:17,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126006032] [2021-02-21 16:08:17,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:08:17,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 16:08:17,364 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 16:08:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 16:08:17,416 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 16:08:17,450 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-21 16:08:17,451 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 16:08:17,451 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 16:08:17,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 04:08:17 BoogieIcfgContainer [2021-02-21 16:08:17,536 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 16:08:17,539 INFO L168 Benchmark]: Toolchain (without parser) took 2761.96 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 126.0 MB in the beginning and 127.0 MB in the end (delta: -1.0 MB). Peak memory consumption was 30.9 MB. Max. memory is 8.0 GB. [2021-02-21 16:08:17,541 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 123.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 16:08:17,542 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.64 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 113.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-02-21 16:08:17,543 INFO L168 Benchmark]: Boogie Preprocessor took 44.44 ms. Allocated memory is still 151.0 MB. Free memory was 113.9 MB in the beginning and 112.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-21 16:08:17,545 INFO L168 Benchmark]: RCFGBuilder took 568.86 ms. Allocated memory is still 151.0 MB. Free memory was 112.1 MB in the beginning and 123.5 MB in the end (delta: -11.4 MB). Peak memory consumption was 18.1 MB. Max. memory is 8.0 GB. [2021-02-21 16:08:17,551 INFO L168 Benchmark]: TraceAbstraction took 1812.87 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 123.0 MB in the beginning and 127.0 MB in the end (delta: -4.0 MB). Peak memory consumption was 26.4 MB. Max. memory is 8.0 GB. [2021-02-21 16:08:17,556 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 123.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 314.64 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 113.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 44.44 ms. Allocated memory is still 151.0 MB. Free memory was 113.9 MB in the beginning and 112.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 568.86 ms. Allocated memory is still 151.0 MB. Free memory was 112.1 MB in the beginning and 123.5 MB in the end (delta: -11.4 MB). Peak memory consumption was 18.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1812.87 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 123.0 MB in the beginning and 127.0 MB in the end (delta: -4.0 MB). Peak memory consumption was 26.4 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: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.7s, 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, 0.4s 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: 0.0s 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...