/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/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-crafted/simple_vardep_1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 18:50:22,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 18:50:22,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 18:50:22,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 18:50:22,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 18:50:22,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 18:50:22,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 18:50:22,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 18:50:22,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 18:50:22,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 18:50:22,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 18:50:22,366 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 18:50:22,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 18:50:22,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 18:50:22,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 18:50:22,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 18:50:22,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 18:50:22,390 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 18:50:22,402 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 18:50:22,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 18:50:22,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 18:50:22,404 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 18:50:22,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 18:50:22,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 18:50:22,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 18:50:22,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 18:50:22,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 18:50:22,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 18:50:22,406 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 18:50:22,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 18:50:22,407 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 18:50:22,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 18:50:22,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 18:50:22,408 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 18:50:22,408 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 18:50:22,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 18:50:22,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 18:50:22,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 18:50:22,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 18:50:22,409 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 18:50:22,409 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 18:50:22,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 18:50:22,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 18:50:22,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 18:50:22,822 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 18:50:22,825 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 18:50:22,827 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_vardep_1.c [2021-02-23 18:50:22,900 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8397417b/8001753745204eefbf7a54bce8d6fa01/FLAGb521c5f2c [2021-02-23 18:50:23,485 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 18:50:23,485 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_vardep_1.c [2021-02-23 18:50:23,493 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8397417b/8001753745204eefbf7a54bce8d6fa01/FLAGb521c5f2c [2021-02-23 18:50:23,852 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8397417b/8001753745204eefbf7a54bce8d6fa01 [2021-02-23 18:50:23,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 18:50:23,870 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 18:50:23,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 18:50:23,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 18:50:23,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 18:50:23,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:50:23" (1/1) ... [2021-02-23 18:50:23,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43038482 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:50:23, skipping insertion in model container [2021-02-23 18:50:23,882 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:50:23" (1/1) ... [2021-02-23 18:50:23,890 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 18:50:23,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 18:50:24,052 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_vardep_1.c[584,597] [2021-02-23 18:50:24,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:50:24,075 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 18:50:24,090 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_vardep_1.c[584,597] [2021-02-23 18:50:24,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:50:24,110 INFO L208 MainTranslator]: Completed translation [2021-02-23 18:50:24,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:50:24 WrapperNode [2021-02-23 18:50:24,111 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 18:50:24,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 18:50:24,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 18:50:24,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 18:50:24,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:50:24" (1/1) ... [2021-02-23 18:50:24,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:50:24" (1/1) ... [2021-02-23 18:50:24,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:50:24" (1/1) ... [2021-02-23 18:50:24,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:50:24" (1/1) ... [2021-02-23 18:50:24,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:50:24" (1/1) ... [2021-02-23 18:50:24,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:50:24" (1/1) ... [2021-02-23 18:50:24,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:50:24" (1/1) ... [2021-02-23 18:50:24,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 18:50:24,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 18:50:24,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 18:50:24,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 18:50:24,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:50:24" (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 [2021-02-23 18:50:24,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 18:50:24,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 18:50:24,288 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 18:50:24,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-23 18:50:24,289 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 18:50:24,289 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 18:50:24,289 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 18:50:24,289 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 18:50:24,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 18:50:24,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-23 18:50:24,291 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 18:50:24,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 18:50:24,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 18:50:24,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 18:50:24,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 18:50:24,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 18:50:24,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 18:50:24,756 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 18:50:24,757 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-23 18:50:24,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:50:24 BoogieIcfgContainer [2021-02-23 18:50:24,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 18:50:24,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 18:50:24,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 18:50:24,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 18:50:24,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 06:50:23" (1/3) ... [2021-02-23 18:50:24,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d15192e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:50:24, skipping insertion in model container [2021-02-23 18:50:24,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:50:24" (2/3) ... [2021-02-23 18:50:24,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d15192e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:50:24, skipping insertion in model container [2021-02-23 18:50:24,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:50:24" (3/3) ... [2021-02-23 18:50:24,786 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_vardep_1.c [2021-02-23 18:50:24,793 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 18:50:24,798 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 18:50:24,821 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 18:50:24,860 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 18:50:24,860 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 18:50:24,861 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 18:50:24,861 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 18:50:24,861 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 18:50:24,861 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 18:50:24,861 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 18:50:24,861 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 18:50:24,912 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2021-02-23 18:50:24,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-02-23 18:50:24,927 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:50:24,928 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] [2021-02-23 18:50:24,928 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:50:24,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:50:24,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1490799159, now seen corresponding path program 1 times [2021-02-23 18:50:24,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:50:24,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1878174820] [2021-02-23 18:50:24,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:50:25,044 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:50:25,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:50:25,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:25,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:50:25,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:25,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:50:25,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:25,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:50:25,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:25,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 18:50:25,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:25,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 18:50:25,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:25,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:50:25,513 WARN L141 QuantifierPusher]: treesize reduction 22, result has 82.8 percent of original size [2021-02-23 18:50:25,529 WARN L147 QuantifierPusher]: treesize reduction 22, result has 82.8 percent of original size 106 [2021-02-23 18:50:25,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:25,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:50:25,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:25,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:50:25,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:25,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:50:25,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:50:25,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:50:25,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:25,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:50:25,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:50:25,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1878174820] [2021-02-23 18:50:25,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:50:25,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-23 18:50:25,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840694986] [2021-02-23 18:50:25,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 18:50:25,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:50:25,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 18:50:25,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-02-23 18:50:25,780 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 11 states. [2021-02-23 18:50:26,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:50:26,466 INFO L93 Difference]: Finished difference Result 59 states and 70 transitions. [2021-02-23 18:50:26,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 18:50:26,469 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 23 [2021-02-23 18:50:26,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:50:26,477 INFO L225 Difference]: With dead ends: 59 [2021-02-23 18:50:26,478 INFO L226 Difference]: Without dead ends: 37 [2021-02-23 18:50:26,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2021-02-23 18:50:26,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-02-23 18:50:26,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2021-02-23 18:50:26,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2021-02-23 18:50:26,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2021-02-23 18:50:26,535 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 23 [2021-02-23 18:50:26,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:50:26,535 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2021-02-23 18:50:26,536 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 18:50:26,536 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2021-02-23 18:50:26,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-02-23 18:50:26,537 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:50:26,537 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:50:26,538 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 18:50:26,538 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:50:26,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:50:26,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1740881698, now seen corresponding path program 1 times [2021-02-23 18:50:26,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:50:26,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [224411685] [2021-02-23 18:50:26,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:50:27,763 WARN L202 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 183 DAG size of output: 109 [2021-02-23 18:50:27,784 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:50:27,791 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:50:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:50:27,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:27,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:50:27,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:27,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:50:27,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:27,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:50:27,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:27,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 18:50:27,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:27,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 18:50:27,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:27,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:50:27,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:27,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 18:50:28,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:28,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-23 18:50:28,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:28,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-23 18:50:28,060 WARN L141 QuantifierPusher]: treesize reduction 22, result has 82.8 percent of original size [2021-02-23 18:50:28,064 WARN L147 QuantifierPusher]: treesize reduction 22, result has 82.8 percent of original size 106 [2021-02-23 18:50:28,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:28,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:50:28,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:28,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:50:28,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:28,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:50:28,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:50:28,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:50:28,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:28,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:50:28,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 18:50:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:50:28,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:28,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:50:28,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:50:28,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [224411685] [2021-02-23 18:50:28,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:50:28,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-23 18:50:28,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172170759] [2021-02-23 18:50:28,233 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-23 18:50:28,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:50:28,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-23 18:50:28,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-02-23 18:50:28,235 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 14 states. [2021-02-23 18:50:28,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:50:28,719 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2021-02-23 18:50:28,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-23 18:50:28,720 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 32 [2021-02-23 18:50:28,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:50:28,720 INFO L225 Difference]: With dead ends: 35 [2021-02-23 18:50:28,721 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 18:50:28,724 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=89, Invalid=463, Unknown=0, NotChecked=0, Total=552 [2021-02-23 18:50:28,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 18:50:28,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 18:50:28,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 18:50:28,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 18:50:28,725 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2021-02-23 18:50:28,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:50:28,725 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 18:50:28,731 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-23 18:50:28,731 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 18:50:28,731 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 18:50:28,732 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 18:50:28,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 18:50:29,232 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 6) no Hoare annotation was computed. [2021-02-23 18:50:29,232 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 6) no Hoare annotation was computed. [2021-02-23 18:50:29,232 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 6) no Hoare annotation was computed. [2021-02-23 18:50:29,233 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 18:50:29,233 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-23 18:50:29,233 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 6) the Hoare annotation is: true [2021-02-23 18:50:29,233 INFO L185 CegarLoopUtils]: 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|)) [2021-02-23 18:50:29,234 INFO L192 CegarLoopUtils]: At program point L6(line 6) the Hoare annotation is: true [2021-02-23 18:50:29,234 INFO L192 CegarLoopUtils]: At program point L6-1(line 6) the Hoare annotation is: true [2021-02-23 18:50:29,234 INFO L192 CegarLoopUtils]: At program point L6-2(line 6) the Hoare annotation is: true [2021-02-23 18:50:29,234 INFO L192 CegarLoopUtils]: At program point L6-3(line 6) the Hoare annotation is: true [2021-02-23 18:50:29,234 INFO L192 CegarLoopUtils]: At program point L6-4(line 6) the Hoare annotation is: true [2021-02-23 18:50:29,234 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-23 18:50:29,235 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-23 18:50:29,235 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 18:50:29,235 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 18:50:29,235 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-23 18:50:29,235 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 15 29) the Hoare annotation is: true [2021-02-23 18:50:29,235 INFO L185 CegarLoopUtils]: At program point L26(line 26) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0))) (and (<= .cse0 main_~k~0) (<= main_~k~0 .cse0))) [2021-02-23 18:50:29,236 INFO L185 CegarLoopUtils]: At program point L26-1(lines 21 27) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0))) (and (<= .cse0 main_~k~0) (<= main_~k~0 .cse0))) [2021-02-23 18:50:29,236 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 15 29) the Hoare annotation is: true [2021-02-23 18:50:29,236 INFO L185 CegarLoopUtils]: At program point L24(line 24) the Hoare annotation is: (let ((.cse1 (+ main_~k~0 3)) (.cse0 (+ main_~i~0 main_~j~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2021-02-23 18:50:29,236 INFO L185 CegarLoopUtils]: At program point L23(line 23) the Hoare annotation is: (let ((.cse1 (+ main_~i~0 main_~j~0)) (.cse0 (+ main_~k~0 1))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2021-02-23 18:50:29,236 INFO L185 CegarLoopUtils]: At program point L22(line 22) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0))) (and (<= .cse0 main_~k~0) (<= main_~k~0 .cse0))) [2021-02-23 18:50:29,237 INFO L185 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: (and (= main_~i~0 0) (= main_~j~0 0)) [2021-02-23 18:50:29,237 INFO L192 CegarLoopUtils]: At program point L21-2(lines 15 29) the Hoare annotation is: true [2021-02-23 18:50:29,237 INFO L185 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: (= main_~i~0 0) [2021-02-23 18:50:29,237 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 7 13) the Hoare annotation is: true [2021-02-23 18:50:29,237 INFO L185 CegarLoopUtils]: At program point L10(line 10) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-23 18:50:29,237 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 7 13) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-23 18:50:29,238 INFO L185 CegarLoopUtils]: At program point L9(lines 9 11) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-23 18:50:29,238 INFO L185 CegarLoopUtils]: At program point L10-1(line 10) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-23 18:50:29,238 INFO L185 CegarLoopUtils]: At program point L9-2(lines 7 13) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-23 18:50:29,238 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-23 18:50:29,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 06:50:29 BoogieIcfgContainer [2021-02-23 18:50:29,259 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 18:50:29,261 INFO L168 Benchmark]: Toolchain (without parser) took 5402.65 ms. Allocated memory was 157.3 MB in the beginning and 191.9 MB in the end (delta: 34.6 MB). Free memory was 133.9 MB in the beginning and 135.1 MB in the end (delta: -1.3 MB). Peak memory consumption was 103.6 MB. Max. memory is 8.0 GB. [2021-02-23 18:50:29,261 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 157.3 MB. Free memory is still 130.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 18:50:29,262 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.75 ms. Allocated memory is still 157.3 MB. Free memory was 132.8 MB in the beginning and 123.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-23 18:50:29,263 INFO L168 Benchmark]: Boogie Preprocessor took 38.09 ms. Allocated memory is still 157.3 MB. Free memory was 123.1 MB in the beginning and 121.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 18:50:29,264 INFO L168 Benchmark]: RCFGBuilder took 611.35 ms. Allocated memory is still 157.3 MB. Free memory was 121.5 MB in the beginning and 108.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-02-23 18:50:29,265 INFO L168 Benchmark]: TraceAbstraction took 4495.07 ms. Allocated memory was 157.3 MB in the beginning and 191.9 MB in the end (delta: 34.6 MB). Free memory was 108.1 MB in the beginning and 135.1 MB in the end (delta: -27.0 MB). Peak memory consumption was 77.4 MB. Max. memory is 8.0 GB. [2021-02-23 18:50:29,268 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 157.3 MB. Free memory is still 130.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 238.75 ms. Allocated memory is still 157.3 MB. Free memory was 132.8 MB in the beginning and 123.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 38.09 ms. Allocated memory is still 157.3 MB. Free memory was 123.1 MB in the beginning and 121.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 611.35 ms. Allocated memory is still 157.3 MB. Free memory was 121.5 MB in the beginning and 108.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4495.07 ms. Allocated memory was 157.3 MB in the beginning and 191.9 MB in the end (delta: 34.6 MB). Free memory was 108.1 MB in the beginning and 135.1 MB in the end (delta: -27.0 MB). Peak memory consumption was 77.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: i + j <= k && k <= i + j - ProcedureContractResult [Line: 15]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 7]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 39 SDtfs, 56 SDslu, 227 SDs, 0 SdLazy, 219 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 31 LocationsWithAnnotation, 45 PreInvPairs, 65 NumberOfFragments, 154 HoareAnnotationTreeSize, 45 FomulaSimplifications, 437 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 31 FomulaSimplificationsInter, 615 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...