/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-7968f31 [2022-03-17 15:39:31,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 15:39:31,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 15:39:31,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 15:39:31,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 15:39:31,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 15:39:31,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 15:39:31,440 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 15:39:31,442 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 15:39:31,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 15:39:31,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 15:39:31,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 15:39:31,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 15:39:31,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 15:39:31,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 15:39:31,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 15:39:31,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 15:39:31,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 15:39:31,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 15:39:31,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 15:39:31,464 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 15:39:31,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 15:39:31,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 15:39:31,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 15:39:31,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 15:39:31,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-17 15:39:31,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-17 15:39:31,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-17 15:39:31,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-17 15:39:31,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-17 15:39:31,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-17 15:39:31,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-17 15:39:31,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-17 15:39:31,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-17 15:39:31,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-17 15:39:31,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-17 15:39:31,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-17 15:39:31,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-17 15:39:31,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-17 15:39:31,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 15:39:31,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 15:39:31,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 15:39:31,483 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-17 15:39:31,492 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 15:39:31,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 15:39:31,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 15:39:31,494 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-17 15:39:31,494 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 15:39:31,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-17 15:39:31,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 15:39:31,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 15:39:31,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 15:39:31,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 15:39:31,495 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-17 15:39:31,495 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 15:39:31,496 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 15:39:31,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 15:39:31,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 15:39:31,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 15:39:31,496 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-17 15:39:31,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 15:39:31,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 15:39:31,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 15:39:31,496 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 15:39:31,497 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 15:39:31,497 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 15:39:31,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 15:39:31,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 15:39:31,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 15:39:31,751 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 15:39:31,751 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 15:39:31,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/net_reset.c [2022-03-17 15:39:31,804 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0d7853d3/a8a106e2ce844de6a5ed61bd9178ee4b/FLAG00fac9f8e [2022-03-17 15:39:32,192 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 15:39:32,192 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/net_reset.c [2022-03-17 15:39:32,200 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0d7853d3/a8a106e2ce844de6a5ed61bd9178ee4b/FLAG00fac9f8e [2022-03-17 15:39:32,209 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0d7853d3/a8a106e2ce844de6a5ed61bd9178ee4b [2022-03-17 15:39:32,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 15:39:32,213 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 15:39:32,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 15:39:32,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 15:39:32,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 15:39:32,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:39:32" (1/1) ... [2022-03-17 15:39:32,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a0fa260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:39:32, skipping insertion in model container [2022-03-17 15:39:32,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:39:32" (1/1) ... [2022-03-17 15:39:32,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 15:39:32,250 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 15:39:32,427 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] [2022-03-17 15:39:32,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 15:39:33,192 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 15:39:33,223 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] [2022-03-17 15:39:33,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 15:39:33,250 INFO L208 MainTranslator]: Completed translation [2022-03-17 15:39:33,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:39:33 WrapperNode [2022-03-17 15:39:33,251 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 15:39:33,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 15:39:33,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 15:39:33,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 15:39:33,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:39:33" (1/1) ... [2022-03-17 15:39:33,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:39:33" (1/1) ... [2022-03-17 15:39:33,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:39:33" (1/1) ... [2022-03-17 15:39:33,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:39:33" (1/1) ... [2022-03-17 15:39:33,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:39:33" (1/1) ... [2022-03-17 15:39:33,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:39:33" (1/1) ... [2022-03-17 15:39:33,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:39:33" (1/1) ... [2022-03-17 15:39:33,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 15:39:33,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 15:39:33,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 15:39:33,298 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 15:39:33,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:39:33" (1/1) ... [2022-03-17 15:39:33,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 15:39:33,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 15:39:33,332 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) [2022-03-17 15:39:33,364 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 [2022-03-17 15:39:33,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 15:39:33,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 15:39:33,398 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 15:39:33,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-17 15:39:33,398 INFO L138 BoogieDeclarations]: Found implementation of procedure net_reset [2022-03-17 15:39:33,399 INFO L138 BoogieDeclarations]: Found implementation of procedure net_send_batch [2022-03-17 15:39:33,399 INFO L138 BoogieDeclarations]: Found implementation of procedure net_reopen [2022-03-17 15:39:33,399 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 15:39:33,399 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 15:39:33,399 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 15:39:33,399 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 15:39:33,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 15:39:33,400 INFO L130 BoogieDeclarations]: Found specification of procedure net_reset [2022-03-17 15:39:33,400 INFO L130 BoogieDeclarations]: Found specification of procedure net_reopen [2022-03-17 15:39:33,400 INFO L130 BoogieDeclarations]: Found specification of procedure net_send_batch [2022-03-17 15:39:33,402 INFO L130 BoogieDeclarations]: Found specification of procedure addrcmp [2022-03-17 15:39:33,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-17 15:39:33,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 15:39:33,402 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 15:39:33,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-17 15:39:33,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 15:39:33,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 15:39:33,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 15:39:33,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 15:39:33,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 15:39:33,510 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 15:39:33,511 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 15:39:33,658 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 15:39:33,663 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 15:39:33,663 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 15:39:33,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 03:39:33 BoogieIcfgContainer [2022-03-17 15:39:33,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 15:39:33,665 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 15:39:33,665 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 15:39:33,666 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 15:39:33,669 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 03:39:33" (1/1) ... [2022-03-17 15:39:33,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 03:39:33 BasicIcfg [2022-03-17 15:39:33,683 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 15:39:33,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 15:39:33,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 15:39:33,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 15:39:33,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 03:39:32" (1/4) ... [2022-03-17 15:39:33,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a1083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:39:33, skipping insertion in model container [2022-03-17 15:39:33,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:39:33" (2/4) ... [2022-03-17 15:39:33,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a1083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:39:33, skipping insertion in model container [2022-03-17 15:39:33,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 03:39:33" (3/4) ... [2022-03-17 15:39:33,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a1083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 03:39:33, skipping insertion in model container [2022-03-17 15:39:33,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 03:39:33" (4/4) ... [2022-03-17 15:39:33,689 INFO L111 eAbstractionObserver]: Analyzing ICFG net_reset.cJordan [2022-03-17 15:39:33,693 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-17 15:39:33,693 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 15:39:33,731 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 15:39:33,740 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 [2022-03-17 15:39:33,740 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 15:39:33,758 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) [2022-03-17 15:39:33,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-03-17 15:39:33,764 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 15:39:33,765 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 15:39:33,765 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 15:39:33,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 15:39:33,773 INFO L85 PathProgramCache]: Analyzing trace with hash -124797815, now seen corresponding path program 1 times [2022-03-17 15:39:33,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 15:39:33,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882645246] [2022-03-17 15:39:33,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 15:39:33,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 15:39:33,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 15:39:34,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 15:39:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 15:39:34,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-03-17 15:39:34,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 15:39:34,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 15:39:34,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 15:39:34,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882645246] [2022-03-17 15:39:34,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882645246] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 15:39:34,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 15:39:34,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 15:39:34,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605602702] [2022-03-17 15:39:34,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 15:39:34,140 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 15:39:34,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 15:39:34,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 15:39:34,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-17 15:39:34,166 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) [2022-03-17 15:39:34,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 15:39:34,335 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2022-03-17 15:39:34,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 15:39:34,337 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 [2022-03-17 15:39:34,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 15:39:34,342 INFO L225 Difference]: With dead ends: 30 [2022-03-17 15:39:34,343 INFO L226 Difference]: Without dead ends: 0 [2022-03-17 15:39:34,344 INFO L911 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 [2022-03-17 15:39:34,347 INFO L912 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 [2022-03-17 15:39:34,352 INFO L913 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] [2022-03-17 15:39:34,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-17 15:39:34,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-17 15:39:34,371 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) [2022-03-17 15:39:34,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-17 15:39:34,372 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2022-03-17 15:39:34,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 15:39:34,372 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-17 15:39:34,372 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) [2022-03-17 15:39:34,373 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-17 15:39:34,373 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-17 15:39:34,375 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-17 15:39:34,376 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 15:39:34,381 INFO L718 BasicCegarLoop]: Path program histogram: [1] [2022-03-17 15:39:34,384 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-17 15:39:34,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 03:39:34 BasicIcfg [2022-03-17 15:39:34,387 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-17 15:39:34,388 INFO L158 Benchmark]: Toolchain (without parser) took 2174.62ms. Allocated memory was 188.7MB in the beginning and 486.5MB in the end (delta: 297.8MB). Free memory was 132.3MB in the beginning and 335.1MB in the end (delta: -202.8MB). Peak memory consumption was 95.7MB. Max. memory is 8.0GB. [2022-03-17 15:39:34,392 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 188.7MB. Free memory was 149.5MB in the beginning and 149.3MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-17 15:39:34,392 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1036.81ms. Allocated memory was 188.7MB in the beginning and 486.5MB in the end (delta: 297.8MB). Free memory was 132.2MB in the beginning and 362.6MB in the end (delta: -230.4MB). Peak memory consumption was 169.3MB. Max. memory is 8.0GB. [2022-03-17 15:39:34,394 INFO L158 Benchmark]: Boogie Preprocessor took 45.12ms. Allocated memory is still 486.5MB. Free memory was 362.6MB in the beginning and 361.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-17 15:39:34,394 INFO L158 Benchmark]: RCFGBuilder took 367.09ms. Allocated memory is still 486.5MB. Free memory was 360.5MB in the beginning and 371.7MB in the end (delta: -11.2MB). Peak memory consumption was 16.5MB. Max. memory is 8.0GB. [2022-03-17 15:39:34,395 INFO L158 Benchmark]: IcfgTransformer took 18.28ms. Allocated memory is still 486.5MB. Free memory was 371.7MB in the beginning and 370.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-17 15:39:34,395 INFO L158 Benchmark]: TraceAbstraction took 702.47ms. Allocated memory is still 486.5MB. Free memory was 369.7MB in the beginning and 335.1MB in the end (delta: 34.6MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. [2022-03-17 15:39:34,400 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 188.7MB. Free memory was 149.5MB in the beginning and 149.3MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1036.81ms. Allocated memory was 188.7MB in the beginning and 486.5MB in the end (delta: 297.8MB). Free memory was 132.2MB in the beginning and 362.6MB in the end (delta: -230.4MB). Peak memory consumption was 169.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 45.12ms. Allocated memory is still 486.5MB. Free memory was 362.6MB in the beginning and 361.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 367.09ms. Allocated memory is still 486.5MB. Free memory was 360.5MB in the beginning and 371.7MB in the end (delta: -11.2MB). Peak memory consumption was 16.5MB. Max. memory is 8.0GB. * IcfgTransformer took 18.28ms. Allocated memory is still 486.5MB. Free memory was 371.7MB in the beginning and 370.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 702.47ms. Allocated memory is still 486.5MB. Free memory was 369.7MB in the beginning and 335.1MB in the end (delta: 34.6MB). Peak memory consumption was 34.6MB. 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: 0.7s, 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, 0.1s 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! [2022-03-17 15:39:34,436 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...