/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/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/loops/lu.cmp.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:47:07,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:47:07,465 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:47:07,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 04:47:07,525 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 04:47:07,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 04:47:07,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 04:47:07,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 04:47:07,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 04:47:07,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 04:47:07,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 04:47:07,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 04:47:07,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:47:07,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:47:07,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:47:07,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:47:07,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:47:07,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:47:07,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:47:07,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:47:07,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:47:07,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:47:07,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:47:07,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:47:07,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 04:47:07,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:47:07,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:47:07,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:47:07,636 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:47:07,660 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:47:07,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:47:07,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:47:07,665 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:47:07,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:47:07,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:47:07,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:47:07,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:47:07,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:47:07,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:47:07,667 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:47:07,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:47:07,668 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:47:07,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:47:07,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:47:07,669 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:47:07,669 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:47:07,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:47:07,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:47:07,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:47:07,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:47:07,671 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:47:07,671 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:47:07,671 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:47:08,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:47:08,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:47:08,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:47:08,122 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:47:08,123 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:47:08,124 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/lu.cmp.c [2021-02-24 04:47:08,199 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8fc2d2a2/dbab4dd0b21142a7a768f43e380401af/FLAGaa04d82d4 [2021-02-24 04:47:08,853 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:47:08,854 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/lu.cmp.c [2021-02-24 04:47:08,866 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8fc2d2a2/dbab4dd0b21142a7a768f43e380401af/FLAGaa04d82d4 [2021-02-24 04:47:09,225 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8fc2d2a2/dbab4dd0b21142a7a768f43e380401af [2021-02-24 04:47:09,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:47:09,244 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:47:09,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:47:09,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:47:09,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:47:09,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:47:09" (1/1) ... [2021-02-24 04:47:09,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e83f087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:09, skipping insertion in model container [2021-02-24 04:47:09,258 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:47:09" (1/1) ... [2021-02-24 04:47:09,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:47:09,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:47:09,534 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/lu.cmp.c[318,331] [2021-02-24 04:47:09,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:47:09,638 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:47:09,653 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/lu.cmp.c[318,331] [2021-02-24 04:47:09,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:47:09,704 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:47:09,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:09 WrapperNode [2021-02-24 04:47:09,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:47:09,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:47:09,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:47:09,707 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:47:09,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:09" (1/1) ... [2021-02-24 04:47:09,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:09" (1/1) ... [2021-02-24 04:47:09,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:09" (1/1) ... [2021-02-24 04:47:09,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:09" (1/1) ... [2021-02-24 04:47:09,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:09" (1/1) ... [2021-02-24 04:47:09,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:09" (1/1) ... [2021-02-24 04:47:09,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:09" (1/1) ... [2021-02-24 04:47:09,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:47:09,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:47:09,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:47:09,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:47:09,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:09" (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 [2021-02-24 04:47:09,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:47:09,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:47:09,863 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:47:09,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-24 04:47:09,864 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2021-02-24 04:47:09,864 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:47:09,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2021-02-24 04:47:09,864 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:47:09,864 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:47:09,864 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:47:09,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:47:09,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-24 04:47:09,865 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2021-02-24 04:47:09,865 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2021-02-24 04:47:09,865 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:47:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-02-24 04:47:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-02-24 04:47:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:47:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:47:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:47:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:47:09,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:47:09,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:47:10,714 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:47:10,715 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-02-24 04:47:10,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:47:10 BoogieIcfgContainer [2021-02-24 04:47:10,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:47:10,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:47:10,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:47:10,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:47:10,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:47:09" (1/3) ... [2021-02-24 04:47:10,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8effc4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:47:10, skipping insertion in model container [2021-02-24 04:47:10,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:09" (2/3) ... [2021-02-24 04:47:10,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8effc4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:47:10, skipping insertion in model container [2021-02-24 04:47:10,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:47:10" (3/3) ... [2021-02-24 04:47:10,728 INFO L111 eAbstractionObserver]: Analyzing ICFG lu.cmp.c [2021-02-24 04:47:10,736 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:47:10,745 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:47:10,767 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:47:10,795 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:47:10,795 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:47:10,795 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:47:10,796 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:47:10,796 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:47:10,796 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:47:10,796 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:47:10,796 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:47:10,818 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2021-02-24 04:47:10,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-02-24 04:47:10,827 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:47:10,828 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:47:10,828 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:47:10,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:47:10,835 INFO L82 PathProgramCache]: Analyzing trace with hash 177786818, now seen corresponding path program 1 times [2021-02-24 04:47:10,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:47:10,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1539436075] [2021-02-24 04:47:10,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:47:10,933 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:47:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:11,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:11,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:11,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:11,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:11,199 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-02-24 04:47:11,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:47:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:11,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:11,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:11,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:47:11,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1539436075] [2021-02-24 04:47:11,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:47:11,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 04:47:11,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671130001] [2021-02-24 04:47:11,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 04:47:11,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:47:11,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 04:47:11,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 04:47:11,290 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 3 states. [2021-02-24 04:47:11,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:47:11,835 INFO L93 Difference]: Finished difference Result 364 states and 428 transitions. [2021-02-24 04:47:11,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 04:47:11,837 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2021-02-24 04:47:11,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:47:11,846 INFO L225 Difference]: With dead ends: 364 [2021-02-24 04:47:11,847 INFO L226 Difference]: Without dead ends: 60 [2021-02-24 04:47:11,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 04:47:11,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-02-24 04:47:11,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 53. [2021-02-24 04:47:11,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2021-02-24 04:47:11,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2021-02-24 04:47:11,904 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 35 [2021-02-24 04:47:11,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:47:11,904 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2021-02-24 04:47:11,904 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 04:47:11,905 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2021-02-24 04:47:11,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-02-24 04:47:11,906 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:47:11,906 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:47:11,906 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:47:11,907 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:47:11,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:47:11,908 INFO L82 PathProgramCache]: Analyzing trace with hash 158392877, now seen corresponding path program 1 times [2021-02-24 04:47:11,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:47:11,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [497256811] [2021-02-24 04:47:11,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:47:11,912 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:47:11,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:12,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:12,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:12,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:12,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:12,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:12,047 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:47:12,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:12,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:12,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:47:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:12,114 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:12,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:12,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:47:12,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [497256811] [2021-02-24 04:47:12,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:47:12,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-24 04:47:12,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383912343] [2021-02-24 04:47:12,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-24 04:47:12,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:47:12,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-24 04:47:12,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-24 04:47:12,123 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand 5 states. [2021-02-24 04:47:12,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:47:12,382 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2021-02-24 04:47:12,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-24 04:47:12,382 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2021-02-24 04:47:12,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:47:12,384 INFO L225 Difference]: With dead ends: 95 [2021-02-24 04:47:12,385 INFO L226 Difference]: Without dead ends: 69 [2021-02-24 04:47:12,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-02-24 04:47:12,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-02-24 04:47:12,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 54. [2021-02-24 04:47:12,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2021-02-24 04:47:12,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2021-02-24 04:47:12,401 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 35 [2021-02-24 04:47:12,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:47:12,401 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2021-02-24 04:47:12,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-24 04:47:12,401 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2021-02-24 04:47:12,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-02-24 04:47:12,403 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:47:12,403 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:47:12,403 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 04:47:12,404 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:47:12,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:47:12,404 INFO L82 PathProgramCache]: Analyzing trace with hash 718523448, now seen corresponding path program 1 times [2021-02-24 04:47:12,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:47:12,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [724471661] [2021-02-24 04:47:12,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:47:12,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:12,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:12,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:12,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:47:12,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-02-24 04:47:12,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:12,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:47:12,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:12,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:12,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:12,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:12,481 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-24 04:47:12,485 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:12,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:12,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:47:12,487 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-02-24 04:47:12,488 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:7 [2021-02-24 04:47:12,492 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: cannot bring into simultaneous update form #memory_int's outvar occurs in several conjuncts [(= v_main_~j~0_13 (+ v_main_~j~0_14 1)), (= |v_#memory_int_25| (store |v_#memory_int_26| |v_~#a~0.base_23| (let ((.cse0 (+ |v_~#a~0.offset_22| (* v_main_~i~0_16 400) (* v_main_~j~0_14 8)))) (store (select |v_#memory_int_26| |v_~#a~0.base_23|) .cse0 (select (select |v_#memory_int_25| |v_~#a~0.base_23|) .cse0))))), (= (store |v_#memory_real_52| |v_~#a~0.base_23| (store (select |v_#memory_real_52| |v_~#a~0.base_23|) (+ |v_~#a~0.offset_22| (* v_main_~i~0_16 400) (* v_main_~j~0_14 8)) v_~convertINTToDOUBLE_7)) |v_#memory_real_51|), (<= v_main_~j~0_14 v_main_~n~0_8), (> v_main_~i~0_16 v_main_~j~0_14)] at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.SimultaneousUpdate.(SimultaneousUpdate.java:107) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.werner.LoopAcceleratorLite.calculateSymbolicMemory(LoopAcceleratorLite.java:167) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.werner.LoopAcceleratorLite.summarizeLoop(LoopAcceleratorLite.java:105) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorWernerOverapprox.accelerateLoop(AcceleratorWernerOverapprox.java:52) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:183) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:62) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) 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) [2021-02-24 04:47:12,496 INFO L168 Benchmark]: Toolchain (without parser) took 3264.57 ms. Allocated memory was 151.0 MB in the beginning and 194.0 MB in the end (delta: 43.0 MB). Free memory was 126.5 MB in the beginning and 135.6 MB in the end (delta: -9.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:47:12,497 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:47:12,498 INFO L168 Benchmark]: CACSL2BoogieTranslator took 455.40 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 113.6 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-02-24 04:47:12,498 INFO L168 Benchmark]: Boogie Preprocessor took 59.01 ms. Allocated memory is still 151.0 MB. Free memory was 113.6 MB in the beginning and 111.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:47:12,499 INFO L168 Benchmark]: RCFGBuilder took 951.22 ms. Allocated memory is still 151.0 MB. Free memory was 111.3 MB in the beginning and 104.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 16.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:47:12,500 INFO L168 Benchmark]: TraceAbstraction took 1775.01 ms. Allocated memory was 151.0 MB in the beginning and 194.0 MB in the end (delta: 43.0 MB). Free memory was 104.3 MB in the beginning and 135.6 MB in the end (delta: -31.3 MB). Peak memory consumption was 11.7 MB. Max. memory is 8.0 GB. [2021-02-24 04:47:12,504 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 455.40 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 113.6 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 59.01 ms. Allocated memory is still 151.0 MB. Free memory was 113.6 MB in the beginning and 111.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 951.22 ms. Allocated memory is still 151.0 MB. Free memory was 111.3 MB in the beginning and 104.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 16.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1775.01 ms. Allocated memory was 151.0 MB in the beginning and 194.0 MB in the end (delta: 43.0 MB). Free memory was 104.3 MB in the beginning and 135.6 MB in the end (delta: -31.3 MB). Peak memory consumption was 11.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalArgumentException: cannot bring into simultaneous update form #memory_int's outvar occurs in several conjuncts [(= v_main_~j~0_13 (+ v_main_~j~0_14 1)), (= |v_#memory_int_25| (store |v_#memory_int_26| |v_~#a~0.base_23| (let ((.cse0 (+ |v_~#a~0.offset_22| (* v_main_~i~0_16 400) (* v_main_~j~0_14 8)))) (store (select |v_#memory_int_26| |v_~#a~0.base_23|) .cse0 (select (select |v_#memory_int_25| |v_~#a~0.base_23|) .cse0))))), (= (store |v_#memory_real_52| |v_~#a~0.base_23| (store (select |v_#memory_real_52| |v_~#a~0.base_23|) (+ |v_~#a~0.offset_22| (* v_main_~i~0_16 400) (* v_main_~j~0_14 8)) v_~convertINTToDOUBLE_7)) |v_#memory_real_51|), (<= v_main_~j~0_14 v_main_~n~0_8), (> v_main_~i~0_16 v_main_~j~0_14)] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: cannot bring into simultaneous update form #memory_int's outvar occurs in several conjuncts [(= v_main_~j~0_13 (+ v_main_~j~0_14 1)), (= |v_#memory_int_25| (store |v_#memory_int_26| |v_~#a~0.base_23| (let ((.cse0 (+ |v_~#a~0.offset_22| (* v_main_~i~0_16 400) (* v_main_~j~0_14 8)))) (store (select |v_#memory_int_26| |v_~#a~0.base_23|) .cse0 (select (select |v_#memory_int_25| |v_~#a~0.base_23|) .cse0))))), (= (store |v_#memory_real_52| |v_~#a~0.base_23| (store (select |v_#memory_real_52| |v_~#a~0.base_23|) (+ |v_~#a~0.offset_22| (* v_main_~i~0_16 400) (* v_main_~j~0_14 8)) v_~convertINTToDOUBLE_7)) |v_#memory_real_51|), (<= v_main_~j~0_14 v_main_~n~0_8), (> v_main_~i~0_16 v_main_~j~0_14)]: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.SimultaneousUpdate.(SimultaneousUpdate.java:107) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...