/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/ldv-regression/oomInt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 01:56:14,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 01:56:14,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 01:56:14,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 01:56:14,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 01:56:14,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 01:56:14,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 01:56:14,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 01:56:14,742 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 01:56:14,743 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 01:56:14,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 01:56:14,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 01:56:14,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 01:56:14,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 01:56:14,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 01:56:14,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 01:56:14,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 01:56:14,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 01:56:14,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 01:56:14,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 01:56:14,794 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 01:56:14,818 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 01:56:14,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 01:56:14,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 01:56:14,824 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 01:56:14,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 01:56:14,824 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 01:56:14,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 01:56:14,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 01:56:14,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 01:56:14,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 01:56:14,826 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 01:56:14,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 01:56:14,827 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 01:56:14,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 01:56:14,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 01:56:14,828 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 01:56:14,828 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 01:56:14,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 01:56:14,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:56:14,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 01:56:14,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 01:56:14,829 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 01:56:14,829 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 01:56:14,829 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 01:56:15,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 01:56:15,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 01:56:15,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 01:56:15,256 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 01:56:15,257 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 01:56:15,258 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/oomInt.i [2021-02-22 01:56:15,343 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6722f8cf4/1a7b521ea3cb4c6591e7efdd02b603c2/FLAG2d57f2d1d [2021-02-22 01:56:15,925 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 01:56:15,926 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/oomInt.i [2021-02-22 01:56:15,934 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6722f8cf4/1a7b521ea3cb4c6591e7efdd02b603c2/FLAG2d57f2d1d [2021-02-22 01:56:16,284 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6722f8cf4/1a7b521ea3cb4c6591e7efdd02b603c2 [2021-02-22 01:56:16,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 01:56:16,303 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 01:56:16,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 01:56:16,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 01:56:16,315 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 01:56:16,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:56:16" (1/1) ... [2021-02-22 01:56:16,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eead004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:16, skipping insertion in model container [2021-02-22 01:56:16,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:56:16" (1/1) ... [2021-02-22 01:56:16,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 01:56:16,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 01:56:16,569 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/oomInt.i[319,332] [2021-02-22 01:56:16,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:56:16,603 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 01:56:16,618 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/oomInt.i[319,332] [2021-02-22 01:56:16,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:56:16,643 INFO L208 MainTranslator]: Completed translation [2021-02-22 01:56:16,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:16 WrapperNode [2021-02-22 01:56:16,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 01:56:16,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 01:56:16,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 01:56:16,645 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 01:56:16,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:16" (1/1) ... [2021-02-22 01:56:16,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:16" (1/1) ... [2021-02-22 01:56:16,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:16" (1/1) ... [2021-02-22 01:56:16,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:16" (1/1) ... [2021-02-22 01:56:16,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:16" (1/1) ... [2021-02-22 01:56:16,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:16" (1/1) ... [2021-02-22 01:56:16,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:16" (1/1) ... [2021-02-22 01:56:16,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 01:56:16,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 01:56:16,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 01:56:16,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 01:56:16,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:16" (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 [2021-02-22 01:56:16,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 01:56:16,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 01:56:16,780 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 01:56:16,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-22 01:56:16,780 INFO L138 BoogieDeclarations]: Found implementation of procedure abs_int [2021-02-22 01:56:16,780 INFO L138 BoogieDeclarations]: Found implementation of procedure firstFunction [2021-02-22 01:56:16,781 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 01:56:16,781 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 01:56:16,782 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 01:56:16,782 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 01:56:16,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 01:56:16,783 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-22 01:56:16,783 INFO L130 BoogieDeclarations]: Found specification of procedure abs_int [2021-02-22 01:56:16,784 INFO L130 BoogieDeclarations]: Found specification of procedure firstFunction [2021-02-22 01:56:16,785 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 01:56:16,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 01:56:16,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 01:56:16,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 01:56:16,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 01:56:16,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 01:56:16,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 01:56:17,047 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 01:56:17,048 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-22 01:56:17,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:56:17 BoogieIcfgContainer [2021-02-22 01:56:17,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 01:56:17,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 01:56:17,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 01:56:17,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 01:56:17,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 01:56:16" (1/3) ... [2021-02-22 01:56:17,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ad20f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:56:17, skipping insertion in model container [2021-02-22 01:56:17,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:16" (2/3) ... [2021-02-22 01:56:17,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ad20f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:56:17, skipping insertion in model container [2021-02-22 01:56:17,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:56:17" (3/3) ... [2021-02-22 01:56:17,061 INFO L111 eAbstractionObserver]: Analyzing ICFG oomInt.i [2021-02-22 01:56:17,069 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 01:56:17,074 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 01:56:17,131 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 01:56:17,210 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 01:56:17,211 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 01:56:17,211 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 01:56:17,211 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 01:56:17,211 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 01:56:17,212 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 01:56:17,212 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 01:56:17,212 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 01:56:17,232 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2021-02-22 01:56:17,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-02-22 01:56:17,244 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:56:17,245 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] [2021-02-22 01:56:17,245 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:56:17,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:56:17,253 INFO L82 PathProgramCache]: Analyzing trace with hash -193580331, now seen corresponding path program 1 times [2021-02-22 01:56:17,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:56:17,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1329278792] [2021-02-22 01:56:17,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:56:17,359 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:56:17,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:56:17,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:17,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:17,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:17,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:56:17,686 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:17,688 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:56:17,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:17,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:56:17,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:17,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:56:17,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:17,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:17,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:56:17,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:56:17,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:17,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:17,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-22 01:56:17,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:56:17,891 WARN L141 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-02-22 01:56:17,895 WARN L147 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size 9 [2021-02-22 01:56:17,915 WARN L141 QuantifierPusher]: treesize reduction -2, result has 125.0 percent of original size [2021-02-22 01:56:17,918 WARN L147 QuantifierPusher]: treesize reduction -2, result has 125.0 percent of original size 10 [2021-02-22 01:56:17,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:56:17,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1329278792] [2021-02-22 01:56:17,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:56:17,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-22 01:56:17,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011670184] [2021-02-22 01:56:17,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-22 01:56:17,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:56:17,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-22 01:56:17,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-02-22 01:56:17,986 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 9 states. [2021-02-22 01:56:18,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:56:18,499 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2021-02-22 01:56:18,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-22 01:56:18,501 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2021-02-22 01:56:18,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:56:18,509 INFO L225 Difference]: With dead ends: 64 [2021-02-22 01:56:18,510 INFO L226 Difference]: Without dead ends: 28 [2021-02-22 01:56:18,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-02-22 01:56:18,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-02-22 01:56:18,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-02-22 01:56:18,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2021-02-22 01:56:18,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2021-02-22 01:56:18,555 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 27 [2021-02-22 01:56:18,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:56:18,555 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2021-02-22 01:56:18,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-22 01:56:18,556 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2021-02-22 01:56:18,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-02-22 01:56:18,557 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:56:18,557 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] [2021-02-22 01:56:18,558 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 01:56:18,558 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:56:18,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:56:18,559 INFO L82 PathProgramCache]: Analyzing trace with hash 114457237, now seen corresponding path program 1 times [2021-02-22 01:56:18,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:56:18,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1203698865] [2021-02-22 01:56:18,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:56:18,563 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:56:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:56:18,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:18,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:18,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:18,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:18,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:56:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:56:18,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:18,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:18,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-22 01:56:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:56:18,680 WARN L141 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-02-22 01:56:18,681 WARN L147 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size 9 [2021-02-22 01:56:18,694 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-22 01:56:18,696 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-22 01:56:18,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:18,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:56:18,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:56:18,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1203698865] [2021-02-22 01:56:18,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:56:18,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-22 01:56:18,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791638607] [2021-02-22 01:56:18,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-22 01:56:18,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:56:18,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-22 01:56:18,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-22 01:56:18,739 INFO L87 Difference]: Start difference. First operand 28 states and 27 transitions. Second operand 6 states. [2021-02-22 01:56:18,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:56:18,854 INFO L93 Difference]: Finished difference Result 28 states and 27 transitions. [2021-02-22 01:56:18,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 01:56:18,863 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2021-02-22 01:56:18,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:56:18,864 INFO L225 Difference]: With dead ends: 28 [2021-02-22 01:56:18,864 INFO L226 Difference]: Without dead ends: 0 [2021-02-22 01:56:18,868 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-02-22 01:56:18,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-22 01:56:18,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-22 01:56:18,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-22 01:56:18,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-22 01:56:18,869 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2021-02-22 01:56:18,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:56:18,869 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-22 01:56:18,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-22 01:56:18,869 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-22 01:56:18,869 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-22 01:56:18,870 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 01:56:18,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-22 01:56:19,491 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-22 01:56:19,492 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-22 01:56:19,492 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-22 01:56:19,492 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-22 01:56:19,492 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-22 01:56:19,493 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 01:56:19,493 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-22 01:56:19,493 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-22 01:56:19,493 INFO L192 CegarLoopUtils]: At program point L3-5(line 3) the Hoare annotation is: true [2021-02-22 01:56:19,493 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2021-02-22 01:56:19,493 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)|) (= ~p~0 |old(~p~0)|) (= |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|)) [2021-02-22 01:56:19,494 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-22 01:56:19,494 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-22 01:56:19,494 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-22 01:56:19,494 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-22 01:56:19,494 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 01:56:19,494 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-22 01:56:19,494 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-22 01:56:19,495 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 35 38) the Hoare annotation is: (= ~p~0 |old(~p~0)|) [2021-02-22 01:56:19,495 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 35 38) the Hoare annotation is: true [2021-02-22 01:56:19,495 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 35 38) the Hoare annotation is: true [2021-02-22 01:56:19,495 INFO L185 CegarLoopUtils]: At program point abs_intEXIT(lines 18 27) the Hoare annotation is: (let ((.cse0 (= (+ abs_int_~i 3) 0))) (or (and (not .cse0) (= |abs_int_#in~i| abs_int_~i)) (and (or (not (= (+ |abs_int_#in~i| 3) 0)) (<= 3 |abs_int_#res|)) .cse0))) [2021-02-22 01:56:19,495 INFO L185 CegarLoopUtils]: At program point L26(line 26) the Hoare annotation is: (and (not (= (+ abs_int_~i 3) 0)) (= |abs_int_#in~i| abs_int_~i)) [2021-02-22 01:56:19,495 INFO L185 CegarLoopUtils]: At program point L24(line 24) the Hoare annotation is: (or (= |abs_int_#in~i| abs_int_~i) (= (+ abs_int_~i 3) 0)) [2021-02-22 01:56:19,496 INFO L185 CegarLoopUtils]: At program point L20(lines 20 26) the Hoare annotation is: (or (= |abs_int_#in~i| abs_int_~i) (= (+ abs_int_~i 3) 0)) [2021-02-22 01:56:19,496 INFO L192 CegarLoopUtils]: At program point abs_intENTRY(lines 18 27) the Hoare annotation is: true [2021-02-22 01:56:19,496 INFO L185 CegarLoopUtils]: At program point abs_intFINAL(lines 18 27) the Hoare annotation is: (let ((.cse0 (= (+ abs_int_~i 3) 0))) (or (and (not .cse0) (= |abs_int_#in~i| abs_int_~i)) (and (or (not (= (+ |abs_int_#in~i| 3) 0)) (<= 3 |abs_int_#res|)) .cse0))) [2021-02-22 01:56:19,496 INFO L185 CegarLoopUtils]: At program point L32(line 32) the Hoare annotation is: (<= 1 ~p~0) [2021-02-22 01:56:19,496 INFO L185 CegarLoopUtils]: At program point L31(line 31) the Hoare annotation is: (and (= ~p~0 |old(~p~0)|) (<= 1 |firstFunction_#t~ret7|)) [2021-02-22 01:56:19,496 INFO L185 CegarLoopUtils]: At program point L31-1(line 31) the Hoare annotation is: (and (= ~p~0 |old(~p~0)|) (<= 1 |firstFunction_#t~ret7|)) [2021-02-22 01:56:19,497 INFO L185 CegarLoopUtils]: At program point L31-2(line 31) the Hoare annotation is: (and (<= 1 |firstFunction_#t~ret7|) (<= 1 ~p~0)) [2021-02-22 01:56:19,497 INFO L185 CegarLoopUtils]: At program point firstFunctionENTRY(lines 29 33) the Hoare annotation is: (= ~p~0 |old(~p~0)|) [2021-02-22 01:56:19,497 INFO L192 CegarLoopUtils]: At program point firstFunctionFINAL(lines 29 33) the Hoare annotation is: true [2021-02-22 01:56:19,497 INFO L192 CegarLoopUtils]: At program point firstFunctionEXIT(lines 29 33) the Hoare annotation is: true [2021-02-22 01:56:19,497 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 8 14) the Hoare annotation is: true [2021-02-22 01:56:19,497 INFO L185 CegarLoopUtils]: At program point L12(line 12) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~i| 0) (not (<= 1 ~p~0))) [2021-02-22 01:56:19,498 INFO L185 CegarLoopUtils]: At program point L12-1(line 12) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~i| 0) (not (<= 1 ~p~0))) [2021-02-22 01:56:19,498 INFO L185 CegarLoopUtils]: At program point L10(lines 10 13) the Hoare annotation is: (or (not (<= 1 ~p~0)) (= |__VERIFIER_assert_#in~i| 0) (not (= __VERIFIER_assert_~i 0))) [2021-02-22 01:56:19,498 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 8 14) the Hoare annotation is: (or (not (<= 1 ~p~0)) (= |__VERIFIER_assert_#in~i| 0) (not (= __VERIFIER_assert_~i 0))) [2021-02-22 01:56:19,498 INFO L185 CegarLoopUtils]: At program point L10-2(lines 8 14) the Hoare annotation is: (or (not (<= 1 ~p~0)) (= |__VERIFIER_assert_#in~i| 0) (not (= __VERIFIER_assert_~i 0))) [2021-02-22 01:56:19,498 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~i| 0) (not (<= 1 ~p~0))) [2021-02-22 01:56:19,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 01:56:19 BoogieIcfgContainer [2021-02-22 01:56:19,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 01:56:19,518 INFO L168 Benchmark]: Toolchain (without parser) took 3226.13 ms. Allocated memory was 169.9 MB in the beginning and 228.6 MB in the end (delta: 58.7 MB). Free memory was 146.8 MB in the beginning and 173.5 MB in the end (delta: -26.7 MB). Peak memory consumption was 126.4 MB. Max. memory is 8.0 GB. [2021-02-22 01:56:19,518 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 169.9 MB. Free memory is still 141.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 01:56:19,519 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.76 ms. Allocated memory is still 169.9 MB. Free memory was 145.6 MB in the beginning and 136.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2021-02-22 01:56:19,520 INFO L168 Benchmark]: Boogie Preprocessor took 32.65 ms. Allocated memory is still 169.9 MB. Free memory was 136.4 MB in the beginning and 135.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-22 01:56:19,521 INFO L168 Benchmark]: RCFGBuilder took 371.98 ms. Allocated memory is still 169.9 MB. Free memory was 135.1 MB in the beginning and 121.4 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-22 01:56:19,522 INFO L168 Benchmark]: TraceAbstraction took 2463.29 ms. Allocated memory was 169.9 MB in the beginning and 228.6 MB in the end (delta: 58.7 MB). Free memory was 120.9 MB in the beginning and 173.5 MB in the end (delta: -52.6 MB). Peak memory consumption was 100.2 MB. Max. memory is 8.0 GB. [2021-02-22 01:56:19,526 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 169.9 MB. Free memory is still 141.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 333.76 ms. Allocated memory is still 169.9 MB. Free memory was 145.6 MB in the beginning and 136.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.65 ms. Allocated memory is still 169.9 MB. Free memory was 136.4 MB in the beginning and 135.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 371.98 ms. Allocated memory is still 169.9 MB. Free memory was 135.1 MB in the beginning and 121.4 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2463.29 ms. Allocated memory was 169.9 MB in the beginning and 228.6 MB in the end (delta: 58.7 MB). Free memory was 120.9 MB in the beginning and 173.5 MB in the end (delta: -52.6 MB). Peak memory consumption was 100.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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 - ProcedureContractResult [Line: 18]: Procedure Contract for abs_int Derived contract for procedure abs_int: (!(i + 3 == 0) && \old(i) == i) || ((!(\old(i) + 3 == 0) || 3 <= \result) && i + 3 == 0) - ProcedureContractResult [Line: 29]: Procedure Contract for firstFunction Derived contract for procedure firstFunction: 1 - ProcedureContractResult [Line: 35]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 8]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: (!(1 <= p) || \old(i) == 0) || !(i == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 45 SDtfs, 44 SDslu, 165 SDs, 0 SdLazy, 127 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 38 LocationsWithAnnotation, 45 PreInvPairs, 67 NumberOfFragments, 226 HoareAnnotationTreeSize, 45 FomulaSimplifications, 27 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 38 FomulaSimplificationsInter, 577 FormulaSimplificationTreeSizeReductionInter, 0.4s 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...