/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/nec40.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:43:06,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:43:06,049 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:43:06,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 18:43:06,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 18:43:06,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 18:43:06,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 18:43:06,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 18:43:06,135 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 18:43:06,139 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 18:43:06,140 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 18:43:06,142 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 18:43:06,142 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:43:06,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:43:06,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:43:06,146 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:43:06,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:43:06,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:43:06,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:43:06,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:43:06,154 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:43:06,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:43:06,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:43:06,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:43:06,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 18:43:06,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:43:06,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:43:06,172 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:43:06,173 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 18:43:06,201 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:43:06,202 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:43:06,203 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:43:06,204 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:43:06,204 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:43:06,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:43:06,204 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:43:06,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:43:06,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:43:06,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:43:06,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:43:06,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:43:06,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:43:06,206 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:43:06,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:43:06,206 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:43:06,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:43:06,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:43:06,207 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:43:06,207 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:43:06,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:43:06,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:43:06,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:43:06,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:43:06,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:43:06,208 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:43:06,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:43:06,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:43:06,209 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:43:06,209 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:43:06,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:43:06,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:43:06,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:43:06,684 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:43:06,685 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:43:06,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/nec40.c [2020-10-23 18:43:06,778 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9f3b38b3/35c528c294884858b97b8cdf8e92e40b/FLAGb0ca20a28 [2020-10-23 18:43:07,626 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:43:07,627 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/nec40.c [2020-10-23 18:43:07,636 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9f3b38b3/35c528c294884858b97b8cdf8e92e40b/FLAGb0ca20a28 [2020-10-23 18:43:07,943 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9f3b38b3/35c528c294884858b97b8cdf8e92e40b [2020-10-23 18:43:07,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:43:07,958 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:43:07,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:43:07,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:43:07,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:43:07,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:43:07" (1/1) ... [2020-10-23 18:43:07,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@349fbdff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:07, skipping insertion in model container [2020-10-23 18:43:07,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:43:07" (1/1) ... [2020-10-23 18:43:07,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:43:08,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:43:08,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:43:08,228 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:43:08,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:43:08,278 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:43:08,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:08 WrapperNode [2020-10-23 18:43:08,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:43:08,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:43:08,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:43:08,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:43:08,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:08" (1/1) ... [2020-10-23 18:43:08,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:08" (1/1) ... [2020-10-23 18:43:08,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:08" (1/1) ... [2020-10-23 18:43:08,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:08" (1/1) ... [2020-10-23 18:43:08,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:08" (1/1) ... [2020-10-23 18:43:08,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:08" (1/1) ... [2020-10-23 18:43:08,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:08" (1/1) ... [2020-10-23 18:43:08,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:43:08,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:43:08,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:43:08,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:43:08,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:08" (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 18:43:08,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:43:08,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:43:08,451 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:43:08,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-23 18:43:08,452 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:43:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:43:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:43:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:43:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:43:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-23 18:43:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:43:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:43:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:43:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:43:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:43:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:43:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:43:08,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:43:08,904 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:43:08,904 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 18:43:08,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:43:08 BoogieIcfgContainer [2020-10-23 18:43:08,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:43:08,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:43:08,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:43:08,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:43:08,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:43:07" (1/3) ... [2020-10-23 18:43:08,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c9f88c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:43:08, skipping insertion in model container [2020-10-23 18:43:08,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:08" (2/3) ... [2020-10-23 18:43:08,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c9f88c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:43:08, skipping insertion in model container [2020-10-23 18:43:08,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:43:08" (3/3) ... [2020-10-23 18:43:08,918 INFO L111 eAbstractionObserver]: Analyzing ICFG nec40.c [2020-10-23 18:43:08,933 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:43:08,940 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:43:08,957 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:43:09,029 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:43:09,029 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:43:09,030 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:43:09,030 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:43:09,030 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:43:09,030 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:43:09,030 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:43:09,030 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:43:09,052 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-10-23 18:43:09,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-23 18:43:09,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:43:09,059 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:43:09,060 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:43:09,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:43:09,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1249392215, now seen corresponding path program 1 times [2020-10-23 18:43:09,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:43:09,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007392893] [2020-10-23 18:43:09,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:43:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:43:09,503 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-23 18:43:09,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:43:09,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:43:09,559 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 18:43:09,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007392893] [2020-10-23 18:43:09,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:43:09,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 18:43:09,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772522996] [2020-10-23 18:43:09,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:43:09,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:43:09,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:43:09,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 18:43:09,589 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 3 states. [2020-10-23 18:43:09,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:43:09,735 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2020-10-23 18:43:09,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:43:09,739 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-10-23 18:43:09,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:43:09,749 INFO L225 Difference]: With dead ends: 43 [2020-10-23 18:43:09,750 INFO L226 Difference]: Without dead ends: 17 [2020-10-23 18:43:09,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 18:43:09,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-10-23 18:43:09,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-10-23 18:43:09,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-23 18:43:09,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-10-23 18:43:09,814 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2020-10-23 18:43:09,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:43:09,815 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-10-23 18:43:09,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:43:09,815 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-10-23 18:43:09,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-23 18:43:09,816 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:43:09,816 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:43:09,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:43:09,817 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:43:09,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:43:09,818 INFO L82 PathProgramCache]: Analyzing trace with hash -776341349, now seen corresponding path program 1 times [2020-10-23 18:43:09,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:43:09,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967783831] [2020-10-23 18:43:09,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:43:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:43:10,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:43:10,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:43:10,042 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 18:43:10,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967783831] [2020-10-23 18:43:10,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:43:10,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 18:43:10,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608874648] [2020-10-23 18:43:10,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 18:43:10,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:43:10,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 18:43:10,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 18:43:10,051 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 4 states. [2020-10-23 18:43:10,221 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-10-23 18:43:10,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:43:10,370 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2020-10-23 18:43:10,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 18:43:10,372 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-23 18:43:10,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:43:10,374 INFO L225 Difference]: With dead ends: 28 [2020-10-23 18:43:10,374 INFO L226 Difference]: Without dead ends: 19 [2020-10-23 18:43:10,376 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:43:10,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-23 18:43:10,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-23 18:43:10,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-23 18:43:10,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-10-23 18:43:10,386 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 16 [2020-10-23 18:43:10,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:43:10,387 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-10-23 18:43:10,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 18:43:10,387 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-10-23 18:43:10,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-23 18:43:10,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:43:10,388 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:43:10,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:43:10,389 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:43:10,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:43:10,390 INFO L82 PathProgramCache]: Analyzing trace with hash 559935392, now seen corresponding path program 1 times [2020-10-23 18:43:10,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:43:10,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968088601] [2020-10-23 18:43:10,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:43:10,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:43:10,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:43:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:43:10,612 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:43:10,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968088601] [2020-10-23 18:43:10,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:43:10,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 18:43:10,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295964345] [2020-10-23 18:43:10,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 18:43:10,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:43:10,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 18:43:10,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:43:10,617 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 5 states. [2020-10-23 18:43:10,819 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-10-23 18:43:10,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:43:10,975 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2020-10-23 18:43:10,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 18:43:10,975 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-23 18:43:10,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:43:10,976 INFO L225 Difference]: With dead ends: 19 [2020-10-23 18:43:10,976 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 18:43:10,977 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:43:10,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 18:43:10,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 18:43:10,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 18:43:10,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 18:43:10,978 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-23 18:43:10,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:43:10,979 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 18:43:10,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 18:43:10,979 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 18:43:10,979 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 18:43:10,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 18:43:10,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 18:43:11,131 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 19 [2020-10-23 18:43:11,263 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-23 18:43:11,264 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-23 18:43:11,264 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-23 18:43:11,265 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-23 18:43:11,265 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:43:11,266 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~j~0 |old(~j~0)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#memory_int| |old(#memory_int)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= |~#x~0.offset| |old(~#x~0.offset)|) (= |~#y~0.offset| |old(~#y~0.offset)|) (= ~i~0 |old(~i~0)|) (= ~k~0 |old(~k~0)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#y~0.base| |old(~#y~0.base)|)) [2020-10-23 18:43:11,266 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:43:11,266 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:43:11,266 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) (<= ~i~0 0)) [2020-10-23 18:43:11,267 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 18:43:11,267 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:43:11,267 INFO L274 CegarLoopResult]: For program point L27(lines 27 28) no Hoare annotation was computed. [2020-10-23 18:43:11,267 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 16 31) no Hoare annotation was computed. [2020-10-23 18:43:11,267 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 16 31) no Hoare annotation was computed. [2020-10-23 18:43:11,268 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 16 31) the Hoare annotation is: (or (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|))) (not (<= |old(~i~0)| 0)) (and (= ~i~0 |old(~i~0)|) (= ~k~0 |old(~k~0)|) (= |#memory_int| |old(#memory_int)|))) [2020-10-23 18:43:11,268 INFO L270 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: (or (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|))) (not (<= |old(~i~0)| 0))) [2020-10-23 18:43:11,268 INFO L274 CegarLoopResult]: For program point L26(lines 26 28) no Hoare annotation was computed. [2020-10-23 18:43:11,268 INFO L274 CegarLoopResult]: For program point L26-1(lines 26 28) no Hoare annotation was computed. [2020-10-23 18:43:11,269 INFO L274 CegarLoopResult]: For program point L20-1(lines 20 23) no Hoare annotation was computed. [2020-10-23 18:43:11,269 INFO L270 CegarLoopResult]: At program point L20-3(lines 20 23) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (and (= (select |#memory_int| |~#x~0.base|) .cse0) (<= ~i~0 0)) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (not (<= |old(~i~0)| 0)))) [2020-10-23 18:43:11,269 INFO L274 CegarLoopResult]: For program point L20-4(lines 20 23) no Hoare annotation was computed. [2020-10-23 18:43:11,269 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2020-10-23 18:43:11,270 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 5 10) no Hoare annotation was computed. [2020-10-23 18:43:11,270 INFO L277 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: true [2020-10-23 18:43:11,270 INFO L274 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2020-10-23 18:43:11,270 INFO L274 CegarLoopResult]: For program point L7-1(line 7) no Hoare annotation was computed. [2020-10-23 18:43:11,270 INFO L274 CegarLoopResult]: For program point L6-2(lines 5 10) no Hoare annotation was computed. [2020-10-23 18:43:11,281 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:707) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:267) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-23 18:43:11,286 INFO L168 Benchmark]: Toolchain (without parser) took 3335.30 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 131.7 MB in the beginning and 141.7 MB in the end (delta: -10.0 MB). Peak memory consumption was 21.7 MB. Max. memory is 8.0 GB. [2020-10-23 18:43:11,287 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 156.2 MB. Free memory is still 127.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:43:11,288 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.40 ms. Allocated memory is still 156.2 MB. Free memory was 131.1 MB in the beginning and 121.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-23 18:43:11,289 INFO L168 Benchmark]: Boogie Preprocessor took 52.86 ms. Allocated memory is still 156.2 MB. Free memory was 121.6 MB in the beginning and 120.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-23 18:43:11,290 INFO L168 Benchmark]: RCFGBuilder took 571.43 ms. Allocated memory is still 156.2 MB. Free memory was 120.0 MB in the beginning and 105.6 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-23 18:43:11,291 INFO L168 Benchmark]: TraceAbstraction took 2375.24 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 105.2 MB in the beginning and 141.7 MB in the end (delta: -36.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:43:11,295 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 156.2 MB. Free memory is still 127.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 317.40 ms. Allocated memory is still 156.2 MB. Free memory was 131.1 MB in the beginning and 121.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 52.86 ms. Allocated memory is still 156.2 MB. Free memory was 121.6 MB in the beginning and 120.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 571.43 ms. Allocated memory is still 156.2 MB. Free memory was 120.0 MB in the beginning and 105.6 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2375.24 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 105.2 MB in the beginning and 141.7 MB in the end (delta: -36.5 MB). There was no memory consumed. 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 - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...