/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_15-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-19 17:41:07,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 17:41:07,508 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 17:41:07,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-19 17:41:07,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 17:41:07,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 17:41:07,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 17:41:07,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 17:41:07,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 17:41:07,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 17:41:07,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 17:41:07,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 17:41:07,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 17:41:07,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 17:41:07,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 17:41:07,620 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 17:41:07,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-19 17:41:07,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 17:41:07,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 17:41:07,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 17:41:07,646 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 [2021-02-19 17:41:07,708 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 17:41:07,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 17:41:07,714 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 17:41:07,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 17:41:07,715 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 17:41:07,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 17:41:07,716 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 17:41:07,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 17:41:07,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 17:41:07,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 17:41:07,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 17:41:07,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 17:41:07,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 17:41:07,718 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 17:41:07,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 17:41:07,719 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 17:41:07,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 17:41:07,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 17:41:07,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 17:41:07,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 17:41:07,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 17:41:07,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 17:41:07,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 17:41:07,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 17:41:07,721 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 17:41:07,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 17:41:07,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 17:41:07,722 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-19 17:41:07,722 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 17:41:08,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 17:41:08,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 17:41:08,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 17:41:08,263 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-19 17:41:08,264 INFO L275 PluginConnector]: CDTParser initialized [2021-02-19 17:41:08,265 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_15-1.c [2021-02-19 17:41:08,364 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4efd665a9/73173c47ed2e4797b3fbe80481e35800/FLAGae4f1c6a2 [2021-02-19 17:41:09,099 INFO L306 CDTParser]: Found 1 translation units. [2021-02-19 17:41:09,100 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_15-1.c [2021-02-19 17:41:09,118 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4efd665a9/73173c47ed2e4797b3fbe80481e35800/FLAGae4f1c6a2 [2021-02-19 17:41:09,400 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4efd665a9/73173c47ed2e4797b3fbe80481e35800 [2021-02-19 17:41:09,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 17:41:09,424 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 17:41:09,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-19 17:41:09,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-19 17:41:09,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-19 17:41:09,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:41:09" (1/1) ... [2021-02-19 17:41:09,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53cdc38e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:41:09, skipping insertion in model container [2021-02-19 17:41:09,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:41:09" (1/1) ... [2021-02-19 17:41:09,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-19 17:41:09,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-19 17:41:09,670 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_15-1.c[5654,5667] [2021-02-19 17:41:09,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:41:09,689 INFO L203 MainTranslator]: Completed pre-run [2021-02-19 17:41:09,728 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_15-1.c[5654,5667] [2021-02-19 17:41:09,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:41:09,750 INFO L208 MainTranslator]: Completed translation [2021-02-19 17:41:09,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:41:09 WrapperNode [2021-02-19 17:41:09,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-19 17:41:09,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 17:41:09,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 17:41:09,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 17:41:09,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:41:09" (1/1) ... [2021-02-19 17:41:09,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:41:09" (1/1) ... [2021-02-19 17:41:09,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:41:09" (1/1) ... [2021-02-19 17:41:09,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:41:09" (1/1) ... [2021-02-19 17:41:09,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:41:09" (1/1) ... [2021-02-19 17:41:09,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:41:09" (1/1) ... [2021-02-19 17:41:09,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:41:09" (1/1) ... [2021-02-19 17:41:09,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 17:41:09,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 17:41:09,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 17:41:09,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 17:41:09,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:41:09" (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 [2021-02-19 17:41:10,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-19 17:41:10,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 17:41:10,051 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-19 17:41:10,051 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-19 17:41:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-19 17:41:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-19 17:41:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-19 17:41:10,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-19 17:41:10,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-19 17:41:10,056 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-19 17:41:10,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-19 17:41:10,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-19 17:41:10,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 17:41:10,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-19 17:41:10,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-19 17:41:10,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-19 17:41:10,933 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 17:41:10,933 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-19 17:41:10,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:41:10 BoogieIcfgContainer [2021-02-19 17:41:10,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 17:41:10,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 17:41:10,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 17:41:10,945 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 17:41:10,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 05:41:09" (1/3) ... [2021-02-19 17:41:10,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53104f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:41:10, skipping insertion in model container [2021-02-19 17:41:10,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:41:09" (2/3) ... [2021-02-19 17:41:10,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53104f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:41:10, skipping insertion in model container [2021-02-19 17:41:10,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:41:10" (3/3) ... [2021-02-19 17:41:10,950 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2021-02-19 17:41:10,962 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 17:41:10,970 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 17:41:10,998 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-19 17:41:11,034 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 17:41:11,035 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 17:41:11,035 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 17:41:11,035 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 17:41:11,036 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 17:41:11,036 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 17:41:11,036 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 17:41:11,036 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 17:41:11,068 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2021-02-19 17:41:11,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-19 17:41:11,083 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:41:11,085 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, 1] [2021-02-19 17:41:11,086 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:41:11,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:41:11,098 INFO L82 PathProgramCache]: Analyzing trace with hash 208658311, now seen corresponding path program 1 times [2021-02-19 17:41:11,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:41:11,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936158425] [2021-02-19 17:41:11,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:41:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:41:11,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:41:11,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:41:11,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:41:11,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:41:11,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:41:11,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:41:11,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:41:11,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:41:11,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:41:11,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:41:11,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:41:11,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936158425] [2021-02-19 17:41:11,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:41:11,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 17:41:11,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600484119] [2021-02-19 17:41:11,543 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 17:41:11,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:41:11,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 17:41:11,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 17:41:11,562 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 4 states. [2021-02-19 17:41:11,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:41:11,981 INFO L93 Difference]: Finished difference Result 118 states and 211 transitions. [2021-02-19 17:41:11,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 17:41:11,985 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2021-02-19 17:41:11,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:41:11,999 INFO L225 Difference]: With dead ends: 118 [2021-02-19 17:41:12,000 INFO L226 Difference]: Without dead ends: 103 [2021-02-19 17:41:12,004 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 [2021-02-19 17:41:12,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-02-19 17:41:12,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 71. [2021-02-19 17:41:12,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2021-02-19 17:41:12,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 130 transitions. [2021-02-19 17:41:12,068 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 130 transitions. Word has length 26 [2021-02-19 17:41:12,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:41:12,069 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 130 transitions. [2021-02-19 17:41:12,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-19 17:41:12,069 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 130 transitions. [2021-02-19 17:41:12,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-19 17:41:12,070 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:41:12,071 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, 1] [2021-02-19 17:41:12,071 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 17:41:12,071 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:41:12,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:41:12,073 INFO L82 PathProgramCache]: Analyzing trace with hash 208665503, now seen corresponding path program 1 times [2021-02-19 17:41:12,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:41:12,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034800871] [2021-02-19 17:41:12,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:41:12,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:41:12,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:41:12,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:41:12,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:41:12,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:41:12,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:41:12,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:41:12,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:41:12,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:41:12,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:41:12,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:41:12,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:41:12,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034800871] [2021-02-19 17:41:12,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:41:12,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 17:41:12,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947775092] [2021-02-19 17:41:12,278 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 17:41:12,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:41:12,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 17:41:12,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 17:41:12,280 INFO L87 Difference]: Start difference. First operand 71 states and 130 transitions. Second operand 4 states. [2021-02-19 17:41:12,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:41:12,548 INFO L93 Difference]: Finished difference Result 169 states and 315 transitions. [2021-02-19 17:41:12,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 17:41:12,550 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2021-02-19 17:41:12,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:41:12,557 INFO L225 Difference]: With dead ends: 169 [2021-02-19 17:41:12,557 INFO L226 Difference]: Without dead ends: 104 [2021-02-19 17:41:12,561 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-19 17:41:12,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-02-19 17:41:12,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 102. [2021-02-19 17:41:12,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2021-02-19 17:41:12,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 188 transitions. [2021-02-19 17:41:12,604 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 188 transitions. Word has length 26 [2021-02-19 17:41:12,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:41:12,604 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 188 transitions. [2021-02-19 17:41:12,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-19 17:41:12,605 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 188 transitions. [2021-02-19 17:41:12,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-19 17:41:12,609 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:41:12,609 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, 1] [2021-02-19 17:41:12,609 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 17:41:12,610 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:41:12,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:41:12,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1785486395, now seen corresponding path program 1 times [2021-02-19 17:41:12,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:41:12,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584583625] [2021-02-19 17:41:12,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:41:12,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:41:12,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:41:12,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:41:12,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:41:12,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:41:12,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:41:12,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:41:12,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:41:12,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:41:12,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:41:12,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:41:12,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:41:12,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584583625] [2021-02-19 17:41:12,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:41:12,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 17:41:12,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969056648] [2021-02-19 17:41:12,725 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 17:41:12,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:41:12,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 17:41:12,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 17:41:12,727 INFO L87 Difference]: Start difference. First operand 102 states and 188 transitions. Second operand 4 states. [2021-02-19 17:41:12,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:41:12,953 INFO L93 Difference]: Finished difference Result 156 states and 283 transitions. [2021-02-19 17:41:12,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 17:41:12,954 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2021-02-19 17:41:12,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:41:12,956 INFO L225 Difference]: With dead ends: 156 [2021-02-19 17:41:12,956 INFO L226 Difference]: Without dead ends: 106 [2021-02-19 17:41:12,957 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-19 17:41:12,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-02-19 17:41:12,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2021-02-19 17:41:12,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2021-02-19 17:41:12,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 188 transitions. [2021-02-19 17:41:12,969 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 188 transitions. Word has length 26 [2021-02-19 17:41:12,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:41:12,970 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 188 transitions. [2021-02-19 17:41:12,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-19 17:41:12,970 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 188 transitions. [2021-02-19 17:41:12,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-19 17:41:12,971 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:41:12,972 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, 1] [2021-02-19 17:41:12,972 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 17:41:12,972 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:41:12,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:41:12,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1785479203, now seen corresponding path program 1 times [2021-02-19 17:41:12,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:41:12,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767308187] [2021-02-19 17:41:12,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:41:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:41:13,010 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:41:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:41:13,050 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:41:13,099 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-19 17:41:13,100 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-19 17:41:13,100 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-19 17:41:13,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 05:41:13 BoogieIcfgContainer [2021-02-19 17:41:13,215 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 17:41:13,218 INFO L168 Benchmark]: Toolchain (without parser) took 3807.13 ms. Allocated memory was 159.4 MB in the beginning and 212.9 MB in the end (delta: 53.5 MB). Free memory was 135.5 MB in the beginning and 193.5 MB in the end (delta: -58.0 MB). Peak memory consumption was 84.4 MB. Max. memory is 8.0 GB. [2021-02-19 17:41:13,219 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 159.4 MB. Free memory is still 131.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 17:41:13,219 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.40 ms. Allocated memory is still 159.4 MB. Free memory was 134.4 MB in the beginning and 123.1 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-02-19 17:41:13,220 INFO L168 Benchmark]: Boogie Preprocessor took 135.21 ms. Allocated memory is still 159.4 MB. Free memory was 123.0 MB in the beginning and 121.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-19 17:41:13,221 INFO L168 Benchmark]: RCFGBuilder took 1046.71 ms. Allocated memory is still 159.4 MB. Free memory was 121.1 MB in the beginning and 128.6 MB in the end (delta: -7.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 8.0 GB. [2021-02-19 17:41:13,222 INFO L168 Benchmark]: TraceAbstraction took 2276.83 ms. Allocated memory was 159.4 MB in the beginning and 212.9 MB in the end (delta: 53.5 MB). Free memory was 128.6 MB in the beginning and 193.5 MB in the end (delta: -64.9 MB). Peak memory consumption was 77.2 MB. Max. memory is 8.0 GB. [2021-02-19 17:41:13,227 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 159.4 MB. Free memory is still 131.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 324.40 ms. Allocated memory is still 159.4 MB. Free memory was 134.4 MB in the beginning and 123.1 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 135.21 ms. Allocated memory is still 159.4 MB. Free memory was 123.0 MB in the beginning and 121.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1046.71 ms. Allocated memory is still 159.4 MB. Free memory was 121.1 MB in the beginning and 128.6 MB in the end (delta: -7.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2276.83 ms. Allocated memory was 159.4 MB in the beginning and 212.9 MB in the end (delta: 53.5 MB). Free memory was 128.6 MB in the beginning and 193.5 MB in the end (delta: -64.9 MB). Peak memory consumption was 77.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 233]: 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; [L50] int p15 = __VERIFIER_nondet_int(); [L51] int lk15; [L54] int cond; VAL [p1=0, p10=0, p11=-5, p12=-3, p13=1, p14=1, p15=1, p2=0, p3=1, p4=-4, p5=6, p6=-1, p7=1, p8=-2, p9=1] [L56] COND TRUE 1 [L57] cond = __VERIFIER_nondet_int() [L58] COND FALSE !(cond == 0) [L61] lk1 = 0 [L63] lk2 = 0 [L65] lk3 = 0 [L67] lk4 = 0 [L69] lk5 = 0 [L71] lk6 = 0 [L73] lk7 = 0 [L75] lk8 = 0 [L77] lk9 = 0 [L79] lk10 = 0 [L81] lk11 = 0 [L83] lk12 = 0 [L85] lk13 = 0 [L87] lk14 = 0 [L89] lk15 = 0 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=-5, p12=-3, p13=1, p14=1, p15=1, p2=0, p3=1, p4=-4, p5=6, p6=-1, p7=1, p8=-2, p9=1] [L93] COND FALSE !(p1 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=-5, p12=-3, p13=1, p14=1, p15=1, p2=0, p3=1, p4=-4, p5=6, p6=-1, p7=1, p8=-2, p9=1] [L97] COND FALSE !(p2 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=-5, p12=-3, p13=1, p14=1, p15=1, p2=0, p3=1, p4=-4, p5=6, p6=-1, p7=1, p8=-2, p9=1] [L101] COND TRUE p3 != 0 [L102] lk3 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=-5, p12=-3, p13=1, p14=1, p15=1, p2=0, p3=1, p4=-4, p5=6, p6=-1, p7=1, p8=-2, p9=1] [L105] COND TRUE p4 != 0 [L106] lk4 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=-5, p12=-3, p13=1, p14=1, p15=1, p2=0, p3=1, p4=-4, p5=6, p6=-1, p7=1, p8=-2, p9=1] [L109] COND TRUE p5 != 0 [L110] lk5 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=-5, p12=-3, p13=1, p14=1, p15=1, p2=0, p3=1, p4=-4, p5=6, p6=-1, p7=1, p8=-2, p9=1] [L113] COND TRUE p6 != 0 [L114] lk6 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=-5, p12=-3, p13=1, p14=1, p15=1, p2=0, p3=1, p4=-4, p5=6, p6=-1, p7=1, p8=-2, p9=1] [L117] COND TRUE p7 != 0 [L118] lk7 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p1=0, p10=0, p11=-5, p12=-3, p13=1, p14=1, p15=1, p2=0, p3=1, p4=-4, p5=6, p6=-1, p7=1, p8=-2, p9=1] [L121] COND TRUE p8 != 0 [L122] lk8 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=0, p1=0, p10=0, p11=-5, p12=-3, p13=1, p14=1, p15=1, p2=0, p3=1, p4=-4, p5=6, p6=-1, p7=1, p8=-2, p9=1] [L125] COND TRUE p9 != 0 [L126] lk9 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=-5, p12=-3, p13=1, p14=1, p15=1, p2=0, p3=1, p4=-4, p5=6, p6=-1, p7=1, p8=-2, p9=1] [L129] COND FALSE !(p10 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=-5, p12=-3, p13=1, p14=1, p15=1, p2=0, p3=1, p4=-4, p5=6, p6=-1, p7=1, p8=-2, p9=1] [L133] COND TRUE p11 != 0 [L134] lk11 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=-5, p12=-3, p13=1, p14=1, p15=1, p2=0, p3=1, p4=-4, p5=6, p6=-1, p7=1, p8=-2, p9=1] [L137] COND TRUE p12 != 0 [L138] lk12 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=-5, p12=-3, p13=1, p14=1, p15=1, p2=0, p3=1, p4=-4, p5=6, p6=-1, p7=1, p8=-2, p9=1] [L141] COND TRUE p13 != 0 [L142] lk13 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=-5, p12=-3, p13=1, p14=1, p15=1, p2=0, p3=1, p4=-4, p5=6, p6=-1, p7=1, p8=-2, p9=1] [L145] COND TRUE p14 != 0 [L146] lk14 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk15=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=-5, p12=-3, p13=1, p14=1, p15=1, p2=0, p3=1, p4=-4, p5=6, p6=-1, p7=1, p8=-2, p9=1] [L149] COND TRUE p15 != 0 [L150] lk15 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk15=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=-5, p12=-3, p13=1, p14=1, p15=1, p2=0, p3=1, p4=-4, p5=6, p6=-1, p7=1, p8=-2, p9=1] [L155] COND FALSE !(p1 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk15=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=-5, p12=-3, p13=1, p14=1, p15=1, p2=0, p3=1, p4=-4, p5=6, p6=-1, p7=1, p8=-2, p9=1] [L160] COND FALSE !(p2 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk15=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=-5, p12=-3, p13=1, p14=1, p15=1, p2=0, p3=1, p4=-4, p5=6, p6=-1, p7=1, p8=-2, p9=1] [L233] reach_error() VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk15=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=-5, p12=-3, p13=1, p14=1, p15=1, p2=0, p3=1, p4=-4, p5=6, p6=-1, p7=1, p8=-2, p9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 389 SDtfs, 684 SDslu, 22 SDs, 0 SdLazy, 294 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=3, 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, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 6800 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 proved your program to be incorrect! Received shutdown request...