/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/loops/terminator_02-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:43:21,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:43:21,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:43:21,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 18:43:21,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 18:43:21,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 18:43:21,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 18:43:21,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 18:43:21,988 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 18:43:21,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 18:43:21,998 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 18:43:22,000 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 18:43:22,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:43:22,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:43:22,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:43:22,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:43:22,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:43:22,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:43:22,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:43:22,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:43:22,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:43:22,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:43:22,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:43:22,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:43:22,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 18:43:22,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:43:22,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:43:22,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:43:22,069 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-23 18:43:22,119 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:43:22,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:43:22,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:43:22,125 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:43:22,125 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:43:22,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:43:22,125 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:43:22,125 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:43:22,126 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:43:22,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:43:22,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:43:22,127 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:43:22,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:43:22,128 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:43:22,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:43:22,128 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:43:22,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:43:22,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:43:22,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:43:22,129 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:43:22,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:43:22,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:43:22,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:43:22,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:43:22,130 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:43:22,130 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:43:22,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:43:22,131 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:43:22,131 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:43:22,131 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:43:22,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:43:22,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:43:22,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:43:22,564 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:43:22,565 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:43:22,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_02-2.c [2020-10-23 18:43:22,658 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bdfd085d/482b661593cc4564981c26306a510d8c/FLAG4ba6ee002 [2020-10-23 18:43:23,249 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:43:23,250 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_02-2.c [2020-10-23 18:43:23,258 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bdfd085d/482b661593cc4564981c26306a510d8c/FLAG4ba6ee002 [2020-10-23 18:43:23,627 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bdfd085d/482b661593cc4564981c26306a510d8c [2020-10-23 18:43:23,631 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:43:23,639 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:43:23,645 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:43:23,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:43:23,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:43:23,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:43:23" (1/1) ... [2020-10-23 18:43:23,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56e1091b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:23, skipping insertion in model container [2020-10-23 18:43:23,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:43:23" (1/1) ... [2020-10-23 18:43:23,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:43:23,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:43:23,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:43:23,876 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:43:23,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:43:23,914 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:43:23,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:23 WrapperNode [2020-10-23 18:43:23,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:43:23,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:43:23,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:43:23,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:43:23,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:23" (1/1) ... [2020-10-23 18:43:23,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:23" (1/1) ... [2020-10-23 18:43:23,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:23" (1/1) ... [2020-10-23 18:43:23,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:23" (1/1) ... [2020-10-23 18:43:23,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:23" (1/1) ... [2020-10-23 18:43:23,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:23" (1/1) ... [2020-10-23 18:43:23,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:23" (1/1) ... [2020-10-23 18:43:23,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:43:23,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:43:23,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:43:23,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:43:23,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:43:24,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:43:24,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:43:24,059 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:43:24,059 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-23 18:43:24,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-23 18:43:24,059 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:43:24,060 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:43:24,060 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:43:24,060 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:43:24,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:43:24,061 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-23 18:43:24,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-23 18:43:24,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:43:24,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-23 18:43:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:43:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:43:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:43:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:43:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:43:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:43:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:43:24,429 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:43:24,429 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 18:43:24,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:43:24 BoogieIcfgContainer [2020-10-23 18:43:24,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:43:24,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:43:24,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:43:24,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:43:24,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:43:23" (1/3) ... [2020-10-23 18:43:24,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4250d4fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:43:24, skipping insertion in model container [2020-10-23 18:43:24,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:23" (2/3) ... [2020-10-23 18:43:24,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4250d4fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:43:24, skipping insertion in model container [2020-10-23 18:43:24,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:43:24" (3/3) ... [2020-10-23 18:43:24,443 INFO L111 eAbstractionObserver]: Analyzing ICFG terminator_02-2.c [2020-10-23 18:43:24,464 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:43:24,476 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:43:24,506 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:43:24,553 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:43:24,554 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:43:24,554 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:43:24,554 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:43:24,554 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:43:24,555 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:43:24,555 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:43:24,555 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:43:24,583 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-10-23 18:43:24,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-23 18:43:24,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:43:24,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:43:24,594 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:43:24,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:43:24,606 INFO L82 PathProgramCache]: Analyzing trace with hash -163451062, now seen corresponding path program 1 times [2020-10-23 18:43:24,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:43:24,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689309476] [2020-10-23 18:43:24,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:43:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:43:25,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:43:25,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:43:25,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:43:25,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689309476] [2020-10-23 18:43:25,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:43:25,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 18:43:25,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137147199] [2020-10-23 18:43:25,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 18:43:25,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:43:25,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 18:43:25,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:43:25,082 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 7 states. [2020-10-23 18:43:25,592 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-10-23 18:43:25,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:43:25,847 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2020-10-23 18:43:25,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-23 18:43:25,849 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-23 18:43:25,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:43:25,856 INFO L225 Difference]: With dead ends: 47 [2020-10-23 18:43:25,856 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 18:43:25,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:43:25,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 18:43:25,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 18:43:25,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 18:43:25,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 18:43:25,893 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-23 18:43:25,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:43:25,894 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 18:43:25,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 18:43:25,895 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 18:43:25,895 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 18:43:25,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:43:25,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 18:43:26,199 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 6 [2020-10-23 18:43:26,210 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-23 18:43:26,210 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-23 18:43:26,210 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-23 18:43:26,211 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-23 18:43:26,211 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:43:26,211 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-23 18:43:26,211 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:43:26,211 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:43:26,212 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-23 18:43:26,212 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 18:43:26,212 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:43:26,212 INFO L274 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 6 8) no Hoare annotation was computed. [2020-10-23 18:43:26,212 INFO L274 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-10-23 18:43:26,212 INFO L274 CegarLoopResult]: For program point L7-2(lines 6 8) no Hoare annotation was computed. [2020-10-23 18:43:26,213 INFO L274 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2020-10-23 18:43:26,213 INFO L274 CegarLoopResult]: For program point L29(lines 29 34) no Hoare annotation was computed. [2020-10-23 18:43:26,213 INFO L277 CegarLoopResult]: At program point L29-2(lines 26 35) the Hoare annotation is: true [2020-10-23 18:43:26,213 INFO L274 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-10-23 18:43:26,213 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 18 40) no Hoare annotation was computed. [2020-10-23 18:43:26,213 INFO L274 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-10-23 18:43:26,213 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 18 40) no Hoare annotation was computed. [2020-10-23 18:43:26,214 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 18 40) the Hoare annotation is: true [2020-10-23 18:43:26,214 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-23 18:43:26,214 INFO L270 CegarLoopResult]: At program point L26-2(lines 26 35) the Hoare annotation is: (or (<= main_~z~0 100) (<= 100 main_~x~0)) [2020-10-23 18:43:26,214 INFO L274 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-10-23 18:43:26,214 INFO L274 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-10-23 18:43:26,215 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 9 14) the Hoare annotation is: true [2020-10-23 18:43:26,215 INFO L270 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-10-23 18:43:26,215 INFO L274 CegarLoopResult]: For program point L10(lines 10 12) no Hoare annotation was computed. [2020-10-23 18:43:26,215 INFO L274 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-10-23 18:43:26,215 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 9 14) no Hoare annotation was computed. [2020-10-23 18:43:26,215 INFO L274 CegarLoopResult]: For program point L10-2(lines 9 14) no Hoare annotation was computed. [2020-10-23 18:43:26,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:43:26 BoogieIcfgContainer [2020-10-23 18:43:26,225 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:43:26,227 INFO L168 Benchmark]: Toolchain (without parser) took 2593.36 ms. Allocated memory is still 156.2 MB. Free memory was 131.9 MB in the beginning and 87.7 MB in the end (delta: 44.2 MB). Peak memory consumption was 45.6 MB. Max. memory is 8.0 GB. [2020-10-23 18:43:26,228 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 125.8 MB. Free memory was 100.9 MB in the beginning and 100.8 MB in the end (delta: 125.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:43:26,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.73 ms. Allocated memory is still 156.2 MB. Free memory was 131.3 MB in the beginning and 122.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-23 18:43:26,230 INFO L168 Benchmark]: Boogie Preprocessor took 39.97 ms. Allocated memory is still 156.2 MB. Free memory was 121.8 MB in the beginning and 120.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:43:26,231 INFO L168 Benchmark]: RCFGBuilder took 475.33 ms. Allocated memory is still 156.2 MB. Free memory was 120.3 MB in the beginning and 137.6 MB in the end (delta: -17.3 MB). Peak memory consumption was 15.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:43:26,232 INFO L168 Benchmark]: TraceAbstraction took 1791.49 ms. Allocated memory is still 156.2 MB. Free memory was 137.6 MB in the beginning and 87.7 MB in the end (delta: 49.9 MB). Peak memory consumption was 50.3 MB. Max. memory is 8.0 GB. [2020-10-23 18:43:26,236 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 125.8 MB. Free memory was 100.9 MB in the beginning and 100.8 MB in the end (delta: 125.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 269.73 ms. Allocated memory is still 156.2 MB. Free memory was 131.3 MB in the beginning and 122.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 39.97 ms. Allocated memory is still 156.2 MB. Free memory was 121.8 MB in the beginning and 120.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 475.33 ms. Allocated memory is still 156.2 MB. Free memory was 120.3 MB in the beginning and 137.6 MB in the end (delta: -17.3 MB). Peak memory consumption was 15.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1791.49 ms. Allocated memory is still 156.2 MB. Free memory was 137.6 MB in the beginning and 87.7 MB in the end (delta: 49.9 MB). Peak memory consumption was 50.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 24 SDtfs, 34 SDslu, 42 SDs, 0 SdLazy, 89 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 13 PreInvPairs, 16 NumberOfFragments, 47 HoareAnnotationTreeSize, 13 FomulaSimplifications, 35 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 167 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 915 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 correct! Received shutdown request...