/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-b7b32d2 [2021-02-21 21:19:51,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 21:19:51,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 21:19:52,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-21 21:19:52,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 21:19:52,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 21:19:52,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 21:19:52,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 21:19:52,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 21:19:52,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 21:19:52,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 21:19:52,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 21:19:52,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 21:19:52,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 21:19:52,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 21:19:52,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 21:19:52,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 21:19:52,071 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-21 21:19:52,086 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 21:19:52,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 21:19:52,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 21:19:52,089 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 21:19:52,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 21:19:52,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 21:19:52,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 21:19:52,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 21:19:52,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 21:19:52,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 21:19:52,090 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 21:19:52,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 21:19:52,091 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 21:19:52,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 21:19:52,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 21:19:52,092 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 21:19:52,092 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 21:19:52,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 21:19:52,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 21:19:52,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 21:19:52,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 21:19:52,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 21:19:52,093 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 21:19:52,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 21:19:52,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 21:19:52,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 21:19:52,537 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 21:19:52,537 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 21:19:52,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_vardep_1.c [2021-02-21 21:19:52,633 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57dacb797/c3906cf9f37f4603b77d6ed753e81d19/FLAG3489d02c0 [2021-02-21 21:19:53,215 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 21:19:53,216 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_vardep_1.c [2021-02-21 21:19:53,230 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57dacb797/c3906cf9f37f4603b77d6ed753e81d19/FLAG3489d02c0 [2021-02-21 21:19:53,624 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57dacb797/c3906cf9f37f4603b77d6ed753e81d19 [2021-02-21 21:19:53,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 21:19:53,644 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 21:19:53,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 21:19:53,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 21:19:53,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 21:19:53,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:19:53" (1/1) ... [2021-02-21 21:19:53,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@471a7559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:19:53, skipping insertion in model container [2021-02-21 21:19:53,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:19:53" (1/1) ... [2021-02-21 21:19:53,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 21:19:53,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 21:19:53,871 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] [2021-02-21 21:19:53,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:19:53,894 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 21:19:53,907 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] [2021-02-21 21:19:53,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:19:53,927 INFO L208 MainTranslator]: Completed translation [2021-02-21 21:19:53,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:19:53 WrapperNode [2021-02-21 21:19:53,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 21:19:53,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 21:19:53,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 21:19:53,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 21:19:53,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:19:53" (1/1) ... [2021-02-21 21:19:53,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:19:53" (1/1) ... [2021-02-21 21:19:53,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:19:53" (1/1) ... [2021-02-21 21:19:53,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:19:53" (1/1) ... [2021-02-21 21:19:53,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:19:53" (1/1) ... [2021-02-21 21:19:53,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:19:53" (1/1) ... [2021-02-21 21:19:53,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:19:53" (1/1) ... [2021-02-21 21:19:53,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 21:19:53,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 21:19:53,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 21:19:53,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 21:19:53,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:19:53" (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 [2021-02-21 21:19:54,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 21:19:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 21:19:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 21:19:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-21 21:19:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 21:19:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 21:19:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 21:19:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 21:19:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 21:19:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-21 21:19:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 21:19:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 21:19:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 21:19:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 21:19:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 21:19:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 21:19:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 21:19:54,347 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 21:19:54,348 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-21 21:19:54,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:19:54 BoogieIcfgContainer [2021-02-21 21:19:54,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 21:19:54,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 21:19:54,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 21:19:54,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 21:19:54,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 09:19:53" (1/3) ... [2021-02-21 21:19:54,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654297e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:19:54, skipping insertion in model container [2021-02-21 21:19:54,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:19:53" (2/3) ... [2021-02-21 21:19:54,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654297e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:19:54, skipping insertion in model container [2021-02-21 21:19:54,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:19:54" (3/3) ... [2021-02-21 21:19:54,360 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_vardep_1.c [2021-02-21 21:19:54,367 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 21:19:54,372 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 21:19:54,394 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 21:19:54,437 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 21:19:54,438 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 21:19:54,438 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 21:19:54,438 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 21:19:54,438 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 21:19:54,439 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 21:19:54,439 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 21:19:54,441 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 21:19:54,480 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2021-02-21 21:19:54,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-02-21 21:19:54,514 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:19:54,515 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] [2021-02-21 21:19:54,516 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:19:54,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:19:54,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1490799159, now seen corresponding path program 1 times [2021-02-21 21:19:54,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:19:54,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [437016221] [2021-02-21 21:19:54,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:19:54,626 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:19:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:55,007 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:55,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:55,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:55,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:19:55,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:55,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 21:19:55,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:55,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 21:19:55,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:55,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-21 21:19:55,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:55,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-21 21:19:55,224 WARN L141 QuantifierPusher]: treesize reduction 22, result has 82.8 percent of original size [2021-02-21 21:19:55,243 WARN L147 QuantifierPusher]: treesize reduction 22, result has 82.8 percent of original size 106 [2021-02-21 21:19:55,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:55,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:19:55,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:55,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:19:55,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:55,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:55,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:19:55,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:55,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:55,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:55,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:19:55,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [437016221] [2021-02-21 21:19:55,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:19:55,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-21 21:19:55,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620933130] [2021-02-21 21:19:55,449 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-21 21:19:55,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:19:55,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-21 21:19:55,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-02-21 21:19:55,468 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 11 states. [2021-02-21 21:19:56,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:19:56,076 INFO L93 Difference]: Finished difference Result 59 states and 70 transitions. [2021-02-21 21:19:56,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-21 21:19:56,077 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 23 [2021-02-21 21:19:56,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:19:56,086 INFO L225 Difference]: With dead ends: 59 [2021-02-21 21:19:56,086 INFO L226 Difference]: Without dead ends: 37 [2021-02-21 21:19:56,090 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2021-02-21 21:19:56,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-02-21 21:19:56,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2021-02-21 21:19:56,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2021-02-21 21:19:56,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2021-02-21 21:19:56,141 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 23 [2021-02-21 21:19:56,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:19:56,141 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2021-02-21 21:19:56,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-21 21:19:56,142 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2021-02-21 21:19:56,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-02-21 21:19:56,143 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:19:56,143 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] [2021-02-21 21:19:56,144 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 21:19:56,144 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:19:56,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:19:56,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1740881698, now seen corresponding path program 1 times [2021-02-21 21:19:56,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:19:56,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2020736385] [2021-02-21 21:19:56,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:19:57,417 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 183 DAG size of output: 109 [2021-02-21 21:19:57,439 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-21 21:19:57,444 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:19:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:57,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:57,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:57,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:57,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:19:57,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:57,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 21:19:57,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:57,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 21:19:57,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:57,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-21 21:19:57,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:57,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-21 21:19:57,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:57,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 21:19:57,694 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:57,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-21 21:19:57,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:57,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-21 21:19:57,740 WARN L141 QuantifierPusher]: treesize reduction 22, result has 82.8 percent of original size [2021-02-21 21:19:57,745 WARN L147 QuantifierPusher]: treesize reduction 22, result has 82.8 percent of original size 106 [2021-02-21 21:19:57,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:57,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:19:57,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:57,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:19:57,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:57,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:57,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:19:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:57,889 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:57,889 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:57,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-21 21:19:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:19:57,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:19:57,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:19:57,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:19:57,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2020736385] [2021-02-21 21:19:57,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:19:57,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-21 21:19:57,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268567184] [2021-02-21 21:19:57,904 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-21 21:19:57,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:19:57,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-21 21:19:57,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-02-21 21:19:57,906 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 14 states. [2021-02-21 21:19:58,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:19:58,413 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2021-02-21 21:19:58,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-21 21:19:58,416 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 32 [2021-02-21 21:19:58,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:19:58,417 INFO L225 Difference]: With dead ends: 35 [2021-02-21 21:19:58,417 INFO L226 Difference]: Without dead ends: 0 [2021-02-21 21:19:58,419 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 [2021-02-21 21:19:58,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-21 21:19:58,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-21 21:19:58,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-21 21:19:58,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-21 21:19:58,420 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2021-02-21 21:19:58,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:19:58,420 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-21 21:19:58,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-21 21:19:58,421 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-21 21:19:58,421 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-21 21:19:58,421 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 21:19:58,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-21 21:19:58,924 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 6) no Hoare annotation was computed. [2021-02-21 21:19:58,924 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 6) no Hoare annotation was computed. [2021-02-21 21:19:58,925 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 6) no Hoare annotation was computed. [2021-02-21 21:19:58,925 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 21:19:58,925 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-21 21:19:58,926 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 6) the Hoare annotation is: true [2021-02-21 21:19:58,926 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|)) [2021-02-21 21:19:58,926 INFO L192 CegarLoopUtils]: At program point L6(line 6) the Hoare annotation is: true [2021-02-21 21:19:58,926 INFO L192 CegarLoopUtils]: At program point L6-1(line 6) the Hoare annotation is: true [2021-02-21 21:19:58,926 INFO L192 CegarLoopUtils]: At program point L6-2(line 6) the Hoare annotation is: true [2021-02-21 21:19:58,926 INFO L192 CegarLoopUtils]: At program point L6-3(line 6) the Hoare annotation is: true [2021-02-21 21:19:58,927 INFO L192 CegarLoopUtils]: At program point L6-4(line 6) the Hoare annotation is: true [2021-02-21 21:19:58,927 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-21 21:19:58,927 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-21 21:19:58,927 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 21:19:58,927 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-21 21:19:58,927 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-21 21:19:58,927 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 15 29) the Hoare annotation is: true [2021-02-21 21:19:58,928 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))) [2021-02-21 21:19:58,928 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))) [2021-02-21 21:19:58,928 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 15 29) the Hoare annotation is: true [2021-02-21 21:19:58,928 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))) [2021-02-21 21:19:58,928 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))) [2021-02-21 21:19:58,929 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))) [2021-02-21 21:19:58,929 INFO L185 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: (and (= main_~i~0 0) (= main_~j~0 0)) [2021-02-21 21:19:58,929 INFO L192 CegarLoopUtils]: At program point L21-2(lines 15 29) the Hoare annotation is: true [2021-02-21 21:19:58,929 INFO L185 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: (= main_~i~0 0) [2021-02-21 21:19:58,929 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 7 13) the Hoare annotation is: true [2021-02-21 21:19:58,930 INFO L185 CegarLoopUtils]: At program point L10(line 10) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-21 21:19:58,930 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))) [2021-02-21 21:19:58,930 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))) [2021-02-21 21:19:58,930 INFO L185 CegarLoopUtils]: At program point L10-1(line 10) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-21 21:19:58,930 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))) [2021-02-21 21:19:58,931 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-21 21:19:58,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 09:19:58 BoogieIcfgContainer [2021-02-21 21:19:58,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 21:19:58,952 INFO L168 Benchmark]: Toolchain (without parser) took 5319.60 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 127.4 MB in the beginning and 68.7 MB in the end (delta: 58.7 MB). Peak memory consumption was 90.1 MB. Max. memory is 8.0 GB. [2021-02-21 21:19:58,952 INFO L168 Benchmark]: CDTParser took 1.10 ms. Allocated memory is still 151.0 MB. Free memory is still 126.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 21:19:58,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.96 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 117.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2021-02-21 21:19:58,954 INFO L168 Benchmark]: Boogie Preprocessor took 36.97 ms. Allocated memory is still 151.0 MB. Free memory was 117.3 MB in the beginning and 115.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-21 21:19:58,955 INFO L168 Benchmark]: RCFGBuilder took 382.84 ms. Allocated memory is still 151.0 MB. Free memory was 115.8 MB in the beginning and 102.7 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-02-21 21:19:58,955 INFO L168 Benchmark]: TraceAbstraction took 4598.16 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 102.4 MB in the beginning and 68.7 MB in the end (delta: 33.7 MB). Peak memory consumption was 64.9 MB. Max. memory is 8.0 GB. [2021-02-21 21:19:58,959 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.10 ms. Allocated memory is still 151.0 MB. Free memory is still 126.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 277.96 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 117.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 36.97 ms. Allocated memory is still 151.0 MB. Free memory was 117.3 MB in the beginning and 115.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 382.84 ms. Allocated memory is still 151.0 MB. Free memory was 115.8 MB in the beginning and 102.7 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4598.16 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 102.4 MB in the beginning and 68.7 MB in the end (delta: 33.7 MB). Peak memory consumption was 64.9 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: 3.9s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, 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, 1.2s 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...