/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+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 12:29:11,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 12:29:11,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 12:29:11,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 12:29:11,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 12:29:11,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 12:29:11,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 12:29:11,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 12:29:11,840 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 12:29:11,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 12:29:11,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 12:29:11,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 12:29:11,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 12:29:11,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 12:29:11,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 12:29:11,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 12:29:11,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 12:29:11,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 12:29:11,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 12:29:11,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 12:29:11,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 12:29:11,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 12:29:11,876 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 12:29:11,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 12:29:11,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 12:29:11,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 12:29:11,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 12:29:11,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 12:29:11,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 12:29:11,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 12:29:11,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 12:29:11,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 12:29:11,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 12:29:11,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 12:29:11,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 12:29:11,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 12:29:11,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 12:29:11,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 12:29:11,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 12:29:11,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 12:29:11,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 12:29:11,896 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-01-31 12:29:11,908 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 12:29:11,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 12:29:11,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 12:29:11,910 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 12:29:11,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 12:29:11,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 12:29:11,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 12:29:11,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 12:29:11,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 12:29:11,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 12:29:11,911 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 12:29:11,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 12:29:11,911 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 12:29:11,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 12:29:11,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 12:29:11,911 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 12:29:11,912 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 12:29:11,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 12:29:11,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 12:29:11,912 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 12:29:11,912 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 12:29:11,913 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-31 12:29:11,913 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 12:29:12,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 12:29:12,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 12:29:12,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 12:29:12,145 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 12:29:12,149 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 12:29:12,151 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_build.i.p+nlh-reducer.c [2022-01-31 12:29:12,210 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f15f85db/09a6d2392bb84d738ede57aa6efe19ce/FLAG496f3d7e2 [2022-01-31 12:29:12,655 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 12:29:12,656 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+nlh-reducer.c [2022-01-31 12:29:12,676 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f15f85db/09a6d2392bb84d738ede57aa6efe19ce/FLAG496f3d7e2 [2022-01-31 12:29:12,988 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f15f85db/09a6d2392bb84d738ede57aa6efe19ce [2022-01-31 12:29:12,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 12:29:12,991 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-31 12:29:12,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 12:29:12,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 12:29:12,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 12:29:12,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 12:29:12" (1/1) ... [2022-01-31 12:29:12,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c240d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:29:12, skipping insertion in model container [2022-01-31 12:29:12,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 12:29:12" (1/1) ... [2022-01-31 12:29:13,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 12:29:13,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 12:29:13,389 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+nlh-reducer.c[32736,32749] [2022-01-31 12:29:13,396 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+nlh-reducer.c[33038,33051] [2022-01-31 12:29:13,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 12:29:13,466 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 12:29:13,646 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+nlh-reducer.c[32736,32749] [2022-01-31 12:29:13,651 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+nlh-reducer.c[33038,33051] [2022-01-31 12:29:13,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 12:29:13,704 INFO L208 MainTranslator]: Completed translation [2022-01-31 12:29:13,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:29:13 WrapperNode [2022-01-31 12:29:13,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 12:29:13,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 12:29:13,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 12:29:13,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 12:29:13,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:29:13" (1/1) ... [2022-01-31 12:29:13,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:29:13" (1/1) ... [2022-01-31 12:29:13,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:29:13" (1/1) ... [2022-01-31 12:29:13,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:29:13" (1/1) ... [2022-01-31 12:29:13,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:29:13" (1/1) ... [2022-01-31 12:29:13,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:29:13" (1/1) ... [2022-01-31 12:29:13,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:29:13" (1/1) ... [2022-01-31 12:29:13,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 12:29:13,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 12:29:13,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 12:29:13,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 12:29:13,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:29:13" (1/1) ... [2022-01-31 12:29:13,852 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 12:29:13,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 12:29:13,880 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) [2022-01-31 12:29:13,906 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 [2022-01-31 12:29:13,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 12:29:13,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 12:29:13,928 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 12:29:13,928 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-31 12:29:13,928 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 12:29:13,928 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 12:29:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 12:29:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 12:29:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 12:29:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-31 12:29:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-31 12:29:13,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 12:29:13,930 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 12:29:13,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 12:29:13,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 12:29:13,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 12:29:13,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 12:29:13,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 12:29:13,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 12:29:14,093 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 12:29:14,095 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 12:29:14,907 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 12:29:14,961 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 12:29:14,962 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-31 12:29:14,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 12:29:14 BoogieIcfgContainer [2022-01-31 12:29:14,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 12:29:14,968 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-31 12:29:14,968 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-31 12:29:14,970 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-31 12:29:14,973 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 12:29:14" (1/1) ... [2022-01-31 12:29:15,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 12:29:15 BasicIcfg [2022-01-31 12:29:15,021 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-31 12:29:15,024 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 12:29:15,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 12:29:15,028 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 12:29:15,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 12:29:12" (1/4) ... [2022-01-31 12:29:15,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66bbcc08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 12:29:15, skipping insertion in model container [2022-01-31 12:29:15,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:29:13" (2/4) ... [2022-01-31 12:29:15,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66bbcc08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 12:29:15, skipping insertion in model container [2022-01-31 12:29:15,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 12:29:14" (3/4) ... [2022-01-31 12:29:15,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66bbcc08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 12:29:15, skipping insertion in model container [2022-01-31 12:29:15,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 12:29:15" (4/4) ... [2022-01-31 12:29:15,031 INFO L111 eAbstractionObserver]: Analyzing ICFG id_build.i.p+nlh-reducer.cJordan [2022-01-31 12:29:15,036 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-01-31 12:29:15,037 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-31 12:29:15,085 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 12:29:15,094 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 [2022-01-31 12:29:15,094 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-31 12:29:15,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 256 states, 249 states have (on average 1.9558232931726907) internal successors, (487), 251 states have internal predecessors, (487), 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) [2022-01-31 12:29:15,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-31 12:29:15,136 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 12:29:15,137 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, 1, 1] [2022-01-31 12:29:15,137 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 12:29:15,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 12:29:15,142 INFO L85 PathProgramCache]: Analyzing trace with hash -2074136825, now seen corresponding path program 1 times [2022-01-31 12:29:15,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 12:29:15,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972451516] [2022-01-31 12:29:15,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 12:29:15,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 12:29:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 12:29:15,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 12:29:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 12:29:15,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 12:29:15,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 12:29:15,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972451516] [2022-01-31 12:29:15,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972451516] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 12:29:15,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 12:29:15,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 12:29:15,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943353021] [2022-01-31 12:29:15,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 12:29:15,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 12:29:15,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 12:29:15,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 12:29:15,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 12:29:15,625 INFO L87 Difference]: Start difference. First operand has 256 states, 249 states have (on average 1.9558232931726907) internal successors, (487), 251 states have internal predecessors, (487), 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 23.0) internal successors, (138), 5 states have internal predecessors, (138), 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) [2022-01-31 12:29:16,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 12:29:16,667 INFO L93 Difference]: Finished difference Result 267 states and 501 transitions. [2022-01-31 12:29:16,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 12:29:16,669 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 5 states have internal predecessors, (138), 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 141 [2022-01-31 12:29:16,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 12:29:16,679 INFO L225 Difference]: With dead ends: 267 [2022-01-31 12:29:16,679 INFO L226 Difference]: Without dead ends: 257 [2022-01-31 12:29:16,681 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 [2022-01-31 12:29:16,683 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 1061 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-31 12:29:16,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1061 Valid, 157 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1180 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-31 12:29:16,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-01-31 12:29:16,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 250. [2022-01-31 12:29:16,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 246 states have (on average 1.1544715447154472) internal successors, (284), 246 states have internal predecessors, (284), 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) [2022-01-31 12:29:16,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 287 transitions. [2022-01-31 12:29:16,726 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 287 transitions. Word has length 141 [2022-01-31 12:29:16,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 12:29:16,727 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 287 transitions. [2022-01-31 12:29:16,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 5 states have internal predecessors, (138), 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) [2022-01-31 12:29:16,727 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 287 transitions. [2022-01-31 12:29:16,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-31 12:29:16,732 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 12:29:16,732 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, 1, 1, 1, 1] [2022-01-31 12:29:16,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 12:29:16,732 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 12:29:16,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 12:29:16,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1866133804, now seen corresponding path program 1 times [2022-01-31 12:29:16,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 12:29:16,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308144082] [2022-01-31 12:29:16,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 12:29:16,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 12:29:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 12:29:16,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 12:29:16,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 12:29:16,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 12:29:16,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 12:29:16,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308144082] [2022-01-31 12:29:16,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308144082] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 12:29:16,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 12:29:16,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 12:29:16,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968797479] [2022-01-31 12:29:16,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 12:29:16,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 12:29:16,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 12:29:16,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 12:29:16,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 12:29:16,897 INFO L87 Difference]: Start difference. First operand 250 states and 287 transitions. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 5 states have internal predecessors, (140), 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) [2022-01-31 12:29:17,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 12:29:17,478 INFO L93 Difference]: Finished difference Result 260 states and 300 transitions. [2022-01-31 12:29:17,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 12:29:17,478 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 5 states have internal predecessors, (140), 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 143 [2022-01-31 12:29:17,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 12:29:17,479 INFO L225 Difference]: With dead ends: 260 [2022-01-31 12:29:17,479 INFO L226 Difference]: Without dead ends: 0 [2022-01-31 12:29:17,480 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 [2022-01-31 12:29:17,481 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 561 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-31 12:29:17,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [561 Valid, 146 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-31 12:29:17,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-31 12:29:17,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-31 12:29:17,482 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) [2022-01-31 12:29:17,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-31 12:29:17,482 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 143 [2022-01-31 12:29:17,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 12:29:17,483 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-31 12:29:17,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 5 states have internal predecessors, (140), 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) [2022-01-31 12:29:17,483 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-31 12:29:17,483 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-31 12:29:17,485 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-31 12:29:17,486 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-31 12:29:17,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 12:29:17,493 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 12:29:17,494 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 12:29:17,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 12:29:17 BasicIcfg [2022-01-31 12:29:17,504 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 12:29:17,505 INFO L158 Benchmark]: Toolchain (without parser) took 4513.30ms. Allocated memory was 196.1MB in the beginning and 297.8MB in the end (delta: 101.7MB). Free memory was 139.6MB in the beginning and 221.3MB in the end (delta: -81.8MB). Peak memory consumption was 20.5MB. Max. memory is 8.0GB. [2022-01-31 12:29:17,505 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 196.1MB. Free memory is still 157.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 12:29:17,506 INFO L158 Benchmark]: CACSL2BoogieTranslator took 713.41ms. Allocated memory is still 196.1MB. Free memory was 139.4MB in the beginning and 143.5MB in the end (delta: -4.1MB). Peak memory consumption was 17.0MB. Max. memory is 8.0GB. [2022-01-31 12:29:17,509 INFO L158 Benchmark]: Boogie Preprocessor took 127.70ms. Allocated memory is still 196.1MB. Free memory was 143.5MB in the beginning and 139.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-01-31 12:29:17,511 INFO L158 Benchmark]: RCFGBuilder took 1132.95ms. Allocated memory was 196.1MB in the beginning and 297.8MB in the end (delta: 101.7MB). Free memory was 138.8MB in the beginning and 264.6MB in the end (delta: -125.8MB). Peak memory consumption was 87.0MB. Max. memory is 8.0GB. [2022-01-31 12:29:17,512 INFO L158 Benchmark]: IcfgTransformer took 52.74ms. Allocated memory is still 297.8MB. Free memory was 264.6MB in the beginning and 257.8MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-01-31 12:29:17,512 INFO L158 Benchmark]: TraceAbstraction took 2479.39ms. Allocated memory is still 297.8MB. Free memory was 257.8MB in the beginning and 221.3MB in the end (delta: 36.5MB). Peak memory consumption was 35.9MB. Max. memory is 8.0GB. [2022-01-31 12:29:17,513 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 196.1MB. Free memory is still 157.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 713.41ms. Allocated memory is still 196.1MB. Free memory was 139.4MB in the beginning and 143.5MB in the end (delta: -4.1MB). Peak memory consumption was 17.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 127.70ms. Allocated memory is still 196.1MB. Free memory was 143.5MB in the beginning and 139.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1132.95ms. Allocated memory was 196.1MB in the beginning and 297.8MB in the end (delta: 101.7MB). Free memory was 138.8MB in the beginning and 264.6MB in the end (delta: -125.8MB). Peak memory consumption was 87.0MB. Max. memory is 8.0GB. * IcfgTransformer took 52.74ms. Allocated memory is still 297.8MB. Free memory was 264.6MB in the beginning and 257.8MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * TraceAbstraction took 2479.39ms. Allocated memory is still 297.8MB. Free memory was 257.8MB in the beginning and 221.3MB in the end (delta: 36.5MB). Peak memory consumption was 35.9MB. 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: 1763]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1780]: 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, 256 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1622 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1622 mSDsluCounter, 303 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1890 IncrementalHoareTripleChecker+Invalid, 1924 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 261 mSDtfsCounter, 1890 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=256occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 284 NumberOfCodeBlocks, 284 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 282 ConstructedInterpolants, 0 QuantifiedInterpolants, 686 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! [2022-01-31 12:29:17,555 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...