/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-14 20:50:48,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-14 20:50:48,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-14 20:50:48,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-14 20:50:48,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-14 20:50:48,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-14 20:50:48,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-14 20:50:48,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-14 20:50:48,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-14 20:50:48,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-14 20:50:48,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-14 20:50:48,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-14 20:50:48,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-14 20:50:48,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-14 20:50:48,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-14 20:50:48,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-14 20:50:48,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-14 20:50:48,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-14 20:50:48,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-14 20:50:48,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-14 20:50:48,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-14 20:50:48,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-14 20:50:48,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-14 20:50:48,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-14 20:50:48,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-14 20:50:48,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-14 20:50:48,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-14 20:50:48,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-14 20:50:48,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-14 20:50:48,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-14 20:50:48,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-14 20:50:48,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-14 20:50:48,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-14 20:50:48,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-14 20:50:48,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-14 20:50:48,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-14 20:50:48,181 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-14 20:50:48,195 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-14 20:50:48,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-14 20:50:48,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-14 20:50:48,196 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-14 20:50:48,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-14 20:50:48,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-14 20:50:48,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-14 20:50:48,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-14 20:50:48,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-14 20:50:48,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-14 20:50:48,197 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-14 20:50:48,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-14 20:50:48,197 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-14 20:50:48,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-14 20:50:48,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-14 20:50:48,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-14 20:50:48,198 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-14 20:50:48,198 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-14 20:50:48,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-14 20:50:48,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-14 20:50:48,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-14 20:50:48,199 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-14 20:50:48,199 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-14 20:50:48,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-14 20:50:48,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-14 20:50:48,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-14 20:50:48,427 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-14 20:50:48,429 INFO L275 PluginConnector]: CDTParser initialized [2022-02-14 20:50:48,430 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c [2022-02-14 20:50:48,505 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96590d9cf/74bb9ba92b48417d99f6ee227aeb3a40/FLAGdeddd2061 [2022-02-14 20:50:48,933 INFO L306 CDTParser]: Found 1 translation units. [2022-02-14 20:50:48,933 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c [2022-02-14 20:50:48,949 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96590d9cf/74bb9ba92b48417d99f6ee227aeb3a40/FLAGdeddd2061 [2022-02-14 20:50:49,272 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96590d9cf/74bb9ba92b48417d99f6ee227aeb3a40 [2022-02-14 20:50:49,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-14 20:50:49,275 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-14 20:50:49,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-14 20:50:49,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-14 20:50:49,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-14 20:50:49,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 08:50:49" (1/1) ... [2022-02-14 20:50:49,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b99f48f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 08:50:49, skipping insertion in model container [2022-02-14 20:50:49,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 08:50:49" (1/1) ... [2022-02-14 20:50:49,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-14 20:50:49,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-14 20:50:49,604 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c[34383,34396] [2022-02-14 20:50:49,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c[39106,39119] [2022-02-14 20:50:49,634 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-14 20:50:49,639 INFO L203 MainTranslator]: Completed pre-run [2022-02-14 20:50:49,713 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c[34383,34396] [2022-02-14 20:50:49,725 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c[39106,39119] [2022-02-14 20:50:49,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-14 20:50:49,740 INFO L208 MainTranslator]: Completed translation [2022-02-14 20:50:49,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 08:50:49 WrapperNode [2022-02-14 20:50:49,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-14 20:50:49,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-14 20:50:49,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-14 20:50:49,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-14 20:50:49,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 08:50:49" (1/1) ... [2022-02-14 20:50:49,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 08:50:49" (1/1) ... [2022-02-14 20:50:49,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 08:50:49" (1/1) ... [2022-02-14 20:50:49,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 08:50:49" (1/1) ... [2022-02-14 20:50:49,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 08:50:49" (1/1) ... [2022-02-14 20:50:49,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 08:50:49" (1/1) ... [2022-02-14 20:50:49,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 08:50:49" (1/1) ... [2022-02-14 20:50:49,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-14 20:50:49,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-14 20:50:49,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-14 20:50:49,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-14 20:50:49,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 08:50:49" (1/1) ... [2022-02-14 20:50:49,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-14 20:50:49,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-14 20:50:49,813 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-14 20:50:49,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-14 20:50:49,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-14 20:50:49,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-14 20:50:49,845 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-14 20:50:49,845 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-02-14 20:50:49,845 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-14 20:50:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-14 20:50:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-14 20:50:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-14 20:50:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-14 20:50:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-02-14 20:50:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-14 20:50:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-14 20:50:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-14 20:50:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-14 20:50:49,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-14 20:50:49,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-14 20:50:49,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-14 20:50:49,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-14 20:50:49,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-14 20:50:49,995 INFO L234 CfgBuilder]: Building ICFG [2022-02-14 20:50:50,003 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-14 20:50:50,552 INFO L275 CfgBuilder]: Performing block encoding [2022-02-14 20:50:50,559 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-14 20:50:50,559 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-14 20:50:50,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 08:50:50 BoogieIcfgContainer [2022-02-14 20:50:50,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-14 20:50:50,561 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-14 20:50:50,561 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-14 20:50:50,562 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-14 20:50:50,564 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 08:50:50" (1/1) ... [2022-02-14 20:50:50,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.02 08:50:50 BasicIcfg [2022-02-14 20:50:50,606 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-14 20:50:50,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-14 20:50:50,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-14 20:50:50,611 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-14 20:50:50,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 08:50:49" (1/4) ... [2022-02-14 20:50:50,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5a5b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 08:50:50, skipping insertion in model container [2022-02-14 20:50:50,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 08:50:49" (2/4) ... [2022-02-14 20:50:50,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5a5b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 08:50:50, skipping insertion in model container [2022-02-14 20:50:50,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 08:50:50" (3/4) ... [2022-02-14 20:50:50,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5a5b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.02 08:50:50, skipping insertion in model container [2022-02-14 20:50:50,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.02 08:50:50" (4/4) ... [2022-02-14 20:50:50,615 INFO L111 eAbstractionObserver]: Analyzing ICFG id_build.i.p+sep-reducer.cJordan [2022-02-14 20:50:50,621 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-14 20:50:50,621 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-14 20:50:50,649 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-14 20:50:50,654 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-14 20:50:50,654 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-14 20:50:50,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 252 states, 245 states have (on average 1.9714285714285715) internal successors, (483), 247 states have internal predecessors, (483), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-14 20:50:50,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-02-14 20:50:50,680 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 20:50:50,680 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-14 20:50:50,681 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 20:50:50,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 20:50:50,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1372143926, now seen corresponding path program 1 times [2022-02-14 20:50:50,690 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 20:50:50,691 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996215099] [2022-02-14 20:50:50,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 20:50:50,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 20:50:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 20:50:51,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 20:50:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 20:50:51,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 20:50:51,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 20:50:51,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996215099] [2022-02-14 20:50:51,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996215099] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 20:50:51,160 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 20:50:51,160 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-14 20:50:51,161 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838994472] [2022-02-14 20:50:51,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 20:50:51,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-14 20:50:51,165 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 20:50:51,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-14 20:50:51,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-14 20:50:51,192 INFO L87 Difference]: Start difference. First operand has 252 states, 245 states have (on average 1.9714285714285715) internal successors, (483), 247 states have internal predecessors, (483), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 20:50:52,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 20:50:52,157 INFO L93 Difference]: Finished difference Result 263 states and 497 transitions. [2022-02-14 20:50:52,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-14 20:50:52,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 138 [2022-02-14 20:50:52,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 20:50:52,166 INFO L225 Difference]: With dead ends: 263 [2022-02-14 20:50:52,167 INFO L226 Difference]: Without dead ends: 253 [2022-02-14 20:50:52,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-02-14 20:50:52,170 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 980 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-14 20:50:52,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [980 Valid, 121 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-14 20:50:52,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-02-14 20:50:52,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 246. [2022-02-14 20:50:52,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 242 states have (on average 1.1570247933884297) internal successors, (280), 242 states have internal predecessors, (280), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 20:50:52,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 283 transitions. [2022-02-14 20:50:52,200 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 283 transitions. Word has length 138 [2022-02-14 20:50:52,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 20:50:52,200 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 283 transitions. [2022-02-14 20:50:52,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 20:50:52,201 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 283 transitions. [2022-02-14 20:50:52,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-02-14 20:50:52,204 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 20:50:52,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-14 20:50:52,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-14 20:50:52,204 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 20:50:52,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 20:50:52,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1813108825, now seen corresponding path program 1 times [2022-02-14 20:50:52,205 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 20:50:52,205 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983722812] [2022-02-14 20:50:52,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 20:50:52,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 20:50:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 20:50:52,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 20:50:52,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 20:50:52,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 20:50:52,302 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 20:50:52,302 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983722812] [2022-02-14 20:50:52,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983722812] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 20:50:52,303 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 20:50:52,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-14 20:50:52,303 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886122200] [2022-02-14 20:50:52,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 20:50:52,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-14 20:50:52,311 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 20:50:52,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-14 20:50:52,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-14 20:50:52,313 INFO L87 Difference]: Start difference. First operand 246 states and 283 transitions. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 20:50:52,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 20:50:52,788 INFO L93 Difference]: Finished difference Result 256 states and 296 transitions. [2022-02-14 20:50:52,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-14 20:50:52,788 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-02-14 20:50:52,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 20:50:52,791 INFO L225 Difference]: With dead ends: 256 [2022-02-14 20:50:52,791 INFO L226 Difference]: Without dead ends: 0 [2022-02-14 20:50:52,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-02-14 20:50:52,793 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 489 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-14 20:50:52,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [489 Valid, 110 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-14 20:50:52,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-14 20:50:52,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-14 20:50:52,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-14 20:50:52,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-14 20:50:52,796 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 139 [2022-02-14 20:50:52,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 20:50:52,796 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-14 20:50:52,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 20:50:52,797 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-14 20:50:52,800 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-14 20:50:52,802 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-02-14 20:50:52,808 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-14 20:50:52,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-14 20:50:52,811 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-14 20:50:52,813 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-14 20:50:52,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.02 08:50:52 BasicIcfg [2022-02-14 20:50:52,821 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-14 20:50:52,821 INFO L158 Benchmark]: Toolchain (without parser) took 3546.21ms. Allocated memory was 199.2MB in the beginning and 273.7MB in the end (delta: 74.4MB). Free memory was 144.5MB in the beginning and 110.5MB in the end (delta: 33.9MB). Peak memory consumption was 108.6MB. Max. memory is 8.0GB. [2022-02-14 20:50:52,821 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 199.2MB. Free memory is still 162.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-14 20:50:52,822 INFO L158 Benchmark]: CACSL2BoogieTranslator took 462.53ms. Allocated memory was 199.2MB in the beginning and 273.7MB in the end (delta: 74.4MB). Free memory was 144.2MB in the beginning and 223.8MB in the end (delta: -79.6MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. [2022-02-14 20:50:52,822 INFO L158 Benchmark]: Boogie Preprocessor took 49.60ms. Allocated memory is still 273.7MB. Free memory was 223.8MB in the beginning and 219.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-02-14 20:50:52,824 INFO L158 Benchmark]: RCFGBuilder took 769.27ms. Allocated memory is still 273.7MB. Free memory was 219.1MB in the beginning and 148.3MB in the end (delta: 70.8MB). Peak memory consumption was 70.3MB. Max. memory is 8.0GB. [2022-02-14 20:50:52,825 INFO L158 Benchmark]: IcfgTransformer took 44.97ms. Allocated memory is still 273.7MB. Free memory was 148.3MB in the beginning and 142.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-02-14 20:50:52,825 INFO L158 Benchmark]: TraceAbstraction took 2213.90ms. Allocated memory is still 273.7MB. Free memory was 141.5MB in the beginning and 110.5MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2022-02-14 20:50:52,826 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 199.2MB. Free memory is still 162.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 462.53ms. Allocated memory was 199.2MB in the beginning and 273.7MB in the end (delta: 74.4MB). Free memory was 144.2MB in the beginning and 223.8MB in the end (delta: -79.6MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 49.60ms. Allocated memory is still 273.7MB. Free memory was 223.8MB in the beginning and 219.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 769.27ms. Allocated memory is still 273.7MB. Free memory was 219.1MB in the beginning and 148.3MB in the end (delta: 70.8MB). Peak memory consumption was 70.3MB. Max. memory is 8.0GB. * IcfgTransformer took 44.97ms. Allocated memory is still 273.7MB. Free memory was 148.3MB in the beginning and 142.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * TraceAbstraction took 2213.90ms. Allocated memory is still 273.7MB. Free memory was 141.5MB in the beginning and 110.5MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 2003]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 2312]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 252 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1469 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1469 mSDsluCounter, 231 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 138 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1971 IncrementalHoareTripleChecker+Invalid, 2109 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 138 mSolverCounterUnsat, 189 mSDtfsCounter, 1971 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=252occurred in iteration=0, InterpolantAutomatonStates: 16, 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, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 277 NumberOfCodeBlocks, 277 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 275 ConstructedInterpolants, 0 QuantifiedInterpolants, 679 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-14 20:50:52,857 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...