/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/loops-crafted-1/net_reset.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7390193 [2022-04-05 01:09:33,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-05 01:09:33,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-05 01:09:33,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-05 01:09:33,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-05 01:09:33,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-05 01:09:33,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-05 01:09:33,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-05 01:09:33,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-05 01:09:33,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-05 01:09:33,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-05 01:09:33,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-05 01:09:33,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-05 01:09:33,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-05 01:09:33,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-05 01:09:33,382 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-05 01:09:33,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-05 01:09:33,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-05 01:09:33,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-05 01:09:33,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-05 01:09:33,386 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-05 01:09:33,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-05 01:09:33,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-05 01:09:33,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-05 01:09:33,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-05 01:09:33,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-05 01:09:33,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-05 01:09:33,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-05 01:09:33,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-05 01:09:33,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-05 01:09:33,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-05 01:09:33,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-05 01:09:33,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-05 01:09:33,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-05 01:09:33,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-05 01:09:33,398 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-05 01:09:33,398 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-05 01:09:33,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-05 01:09:33,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-05 01:09:33,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-05 01:09:33,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-05 01:09:33,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-05 01:09:33,401 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-05 01:09:33,406 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-05 01:09:33,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-05 01:09:33,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-05 01:09:33,408 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-05 01:09:33,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-05 01:09:33,408 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-05 01:09:33,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-05 01:09:33,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-05 01:09:33,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-05 01:09:33,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-05 01:09:33,408 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-05 01:09:33,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-05 01:09:33,409 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-05 01:09:33,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-05 01:09:33,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-05 01:09:33,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-05 01:09:33,409 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-05 01:09:33,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-05 01:09:33,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 01:09:33,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-05 01:09:33,410 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-05 01:09:33,410 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-05 01:09:33,410 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-05 01:09:33,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-05 01:09:33,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-05 01:09:33,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-05 01:09:33,609 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-05 01:09:33,610 INFO L275 PluginConnector]: CDTParser initialized [2022-04-05 01:09:33,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/net_reset.c [2022-04-05 01:09:33,662 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa59f1dc5/3c7ecb5b17134ae88beb3f8358d57ece/FLAG804ad594c [2022-04-05 01:09:34,036 INFO L306 CDTParser]: Found 1 translation units. [2022-04-05 01:09:34,039 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/net_reset.c [2022-04-05 01:09:34,047 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa59f1dc5/3c7ecb5b17134ae88beb3f8358d57ece/FLAG804ad594c [2022-04-05 01:09:34,054 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa59f1dc5/3c7ecb5b17134ae88beb3f8358d57ece [2022-04-05 01:09:34,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-05 01:09:34,057 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-05 01:09:34,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-05 01:09:34,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-05 01:09:34,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-05 01:09:34,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 01:09:34" (1/1) ... [2022-04-05 01:09:34,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@100bad43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 01:09:34, skipping insertion in model container [2022-04-05 01:09:34,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 01:09:34" (1/1) ... [2022-04-05 01:09:34,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-05 01:09:34,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-05 01:09:34,254 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/net_reset.c[4546,4559] [2022-04-05 01:09:34,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 01:09:34,849 INFO L203 MainTranslator]: Completed pre-run [2022-04-05 01:09:34,877 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/net_reset.c[4546,4559] [2022-04-05 01:09:34,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 01:09:34,901 INFO L208 MainTranslator]: Completed translation [2022-04-05 01:09:34,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 01:09:34 WrapperNode [2022-04-05 01:09:34,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-05 01:09:34,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-05 01:09:34,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-05 01:09:34,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-05 01:09:34,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 01:09:34" (1/1) ... [2022-04-05 01:09:34,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 01:09:34" (1/1) ... [2022-04-05 01:09:34,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 01:09:34" (1/1) ... [2022-04-05 01:09:34,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 01:09:34" (1/1) ... [2022-04-05 01:09:34,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 01:09:34" (1/1) ... [2022-04-05 01:09:34,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 01:09:34" (1/1) ... [2022-04-05 01:09:34,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 01:09:34" (1/1) ... [2022-04-05 01:09:34,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-05 01:09:34,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-05 01:09:34,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-05 01:09:34,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-05 01:09:34,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 01:09:34" (1/1) ... [2022-04-05 01:09:34,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 01:09:34,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 01:09:34,983 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) [2022-04-05 01:09:35,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-05 01:09:35,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-05 01:09:35,010 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-05 01:09:35,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-05 01:09:35,010 INFO L138 BoogieDeclarations]: Found implementation of procedure net_reset [2022-04-05 01:09:35,011 INFO L138 BoogieDeclarations]: Found implementation of procedure net_send_batch [2022-04-05 01:09:35,011 INFO L138 BoogieDeclarations]: Found implementation of procedure net_reopen [2022-04-05 01:09:35,011 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-05 01:09:35,011 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-05 01:09:35,011 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-05 01:09:34,990 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 [2022-04-05 01:09:35,011 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-05 01:09:35,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-05 01:09:35,012 INFO L130 BoogieDeclarations]: Found specification of procedure net_reset [2022-04-05 01:09:35,012 INFO L130 BoogieDeclarations]: Found specification of procedure net_reopen [2022-04-05 01:09:35,012 INFO L130 BoogieDeclarations]: Found specification of procedure net_send_batch [2022-04-05 01:09:35,012 INFO L130 BoogieDeclarations]: Found specification of procedure addrcmp [2022-04-05 01:09:35,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-05 01:09:35,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-05 01:09:35,012 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-05 01:09:35,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-05 01:09:35,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-05 01:09:35,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-05 01:09:35,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-05 01:09:35,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-05 01:09:35,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-05 01:09:35,073 INFO L234 CfgBuilder]: Building ICFG [2022-04-05 01:09:35,075 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-05 01:09:35,212 INFO L275 CfgBuilder]: Performing block encoding [2022-04-05 01:09:35,215 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-05 01:09:35,215 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-05 01:09:35,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 01:09:35 BoogieIcfgContainer [2022-04-05 01:09:35,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-05 01:09:35,217 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-05 01:09:35,217 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-05 01:09:35,218 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-05 01:09:35,220 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 01:09:35" (1/1) ... [2022-04-05 01:09:35,221 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-05 01:09:35,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 01:09:35 BasicIcfg [2022-04-05 01:09:35,235 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-05 01:09:35,236 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-05 01:09:35,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-05 01:09:35,238 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-05 01:09:35,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 01:09:34" (1/4) ... [2022-04-05 01:09:35,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76cf7fb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 01:09:35, skipping insertion in model container [2022-04-05 01:09:35,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 01:09:34" (2/4) ... [2022-04-05 01:09:35,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76cf7fb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 01:09:35, skipping insertion in model container [2022-04-05 01:09:35,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 01:09:35" (3/4) ... [2022-04-05 01:09:35,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76cf7fb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 01:09:35, skipping insertion in model container [2022-04-05 01:09:35,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 01:09:35" (4/4) ... [2022-04-05 01:09:35,240 INFO L111 eAbstractionObserver]: Analyzing ICFG net_reset.cJordan [2022-04-05 01:09:35,243 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-05 01:09:35,243 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-05 01:09:35,275 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-05 01:09:35,279 INFO L340 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 [2022-04-05 01:09:35,279 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-05 01:09:35,287 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 27 states have internal predecessors, (34), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-05 01:09:35,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-04-05 01:09:35,292 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 01:09:35,292 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 01:09:35,292 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 01:09:35,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 01:09:35,296 INFO L85 PathProgramCache]: Analyzing trace with hash -124797815, now seen corresponding path program 1 times [2022-04-05 01:09:35,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 01:09:35,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673139645] [2022-04-05 01:09:35,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 01:09:35,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 01:09:35,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 01:09:35,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 01:09:35,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 01:09:35,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-04-05 01:09:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 01:09:35,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 01:09:35,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 01:09:35,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673139645] [2022-04-05 01:09:35,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673139645] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 01:09:35,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 01:09:35,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 01:09:35,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178600004] [2022-04-05 01:09:35,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 01:09:35,577 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 01:09:35,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 01:09:35,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 01:09:35,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-04-05 01:09:35,601 INFO L87 Difference]: Start difference. First operand has 40 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 27 states have internal predecessors, (34), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 4 states have internal predecessors, (13), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-05 01:09:35,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 01:09:35,734 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2022-04-05 01:09:35,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-05 01:09:35,736 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 4 states have internal predecessors, (13), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-04-05 01:09:35,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 01:09:35,739 INFO L225 Difference]: With dead ends: 30 [2022-04-05 01:09:35,739 INFO L226 Difference]: Without dead ends: 0 [2022-04-05 01:09:35,740 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-04-05 01:09:35,745 INFO L913 BasicCegarLoop]: 24 mSDtfsCounter, 39 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-05 01:09:35,745 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 42 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-05 01:09:35,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-05 01:09:35,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-05 01:09:35,779 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) [2022-04-05 01:09:35,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-05 01:09:35,780 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2022-04-05 01:09:35,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 01:09:35,780 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-05 01:09:35,780 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 4 states have internal predecessors, (13), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-05 01:09:35,781 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-05 01:09:35,781 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-05 01:09:35,782 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-05 01:09:35,783 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-05 01:09:35,787 INFO L719 BasicCegarLoop]: Path program histogram: [1] [2022-04-05 01:09:35,789 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-05 01:09:35,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 01:09:35 BasicIcfg [2022-04-05 01:09:35,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-05 01:09:35,793 INFO L158 Benchmark]: Toolchain (without parser) took 1735.76ms. Allocated memory was 183.5MB in the beginning and 440.4MB in the end (delta: 256.9MB). Free memory was 133.8MB in the beginning and 334.3MB in the end (delta: -200.5MB). Peak memory consumption was 57.5MB. Max. memory is 8.0GB. [2022-04-05 01:09:35,796 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 183.5MB. Free memory was 150.7MB in the beginning and 150.7MB in the end (delta: 69.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-05 01:09:35,796 INFO L158 Benchmark]: CACSL2BoogieTranslator took 843.85ms. Allocated memory was 183.5MB in the beginning and 440.4MB in the end (delta: 256.9MB). Free memory was 133.7MB in the beginning and 326.9MB in the end (delta: -193.3MB). Peak memory consumption was 160.3MB. Max. memory is 8.0GB. [2022-04-05 01:09:35,797 INFO L158 Benchmark]: Boogie Preprocessor took 38.47ms. Allocated memory is still 440.4MB. Free memory was 326.9MB in the beginning and 325.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-05 01:09:35,798 INFO L158 Benchmark]: RCFGBuilder took 276.06ms. Allocated memory is still 440.4MB. Free memory was 325.4MB in the beginning and 311.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-04-05 01:09:35,798 INFO L158 Benchmark]: IcfgTransformer took 18.03ms. Allocated memory is still 440.4MB. Free memory was 311.2MB in the beginning and 310.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-05 01:09:35,798 INFO L158 Benchmark]: TraceAbstraction took 555.82ms. Allocated memory is still 440.4MB. Free memory was 309.6MB in the beginning and 334.3MB in the end (delta: -24.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-05 01:09:35,802 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 183.5MB. Free memory was 150.7MB in the beginning and 150.7MB in the end (delta: 69.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 843.85ms. Allocated memory was 183.5MB in the beginning and 440.4MB in the end (delta: 256.9MB). Free memory was 133.7MB in the beginning and 326.9MB in the end (delta: -193.3MB). Peak memory consumption was 160.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.47ms. Allocated memory is still 440.4MB. Free memory was 326.9MB in the beginning and 325.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 276.06ms. Allocated memory is still 440.4MB. Free memory was 325.4MB in the beginning and 311.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * IcfgTransformer took 18.03ms. Allocated memory is still 440.4MB. Free memory was 311.2MB in the beginning and 310.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 555.82ms. Allocated memory is still 440.4MB. Free memory was 309.6MB in the beginning and 334.3MB in the end (delta: -24.6MB). There was no memory consumed. 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: 195]: 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 7 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 24 mSDtfsCounter, 47 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 70 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-05 01:09:35,831 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...