./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp2.4.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp2.4.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3ef782984e81d8d56795c2fb26cedd9b1688f37cda05b15cc9bbdb350221c29b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:39:30,732 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:39:30,816 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-02 23:39:30,821 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:39:30,822 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:39:30,844 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:39:30,845 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:39:30,845 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:39:30,846 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:39:30,847 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:39:30,847 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:39:30,848 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:39:30,848 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:39:30,849 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:39:30,849 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:39:30,850 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:39:30,850 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:39:30,851 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:39:30,851 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:39:30,852 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:39:30,852 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:39:30,853 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:39:30,854 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:39:30,854 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:39:30,855 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:39:30,855 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:39:30,855 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:39:30,856 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:39:30,856 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:39:30,857 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:39:30,857 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ef782984e81d8d56795c2fb26cedd9b1688f37cda05b15cc9bbdb350221c29b [2023-12-02 23:39:31,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:39:31,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:39:31,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:39:31,090 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:39:31,090 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:39:31,103 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp2.4.prop1-back-serstep.c [2023-12-02 23:39:33,809 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:39:34,156 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:39:34,156 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp2.4.prop1-back-serstep.c [2023-12-02 23:39:34,178 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/data/fcab52e50/41bab121eb20418ebda2a0ad5e3a795d/FLAG769625dfd [2023-12-02 23:39:34,193 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/data/fcab52e50/41bab121eb20418ebda2a0ad5e3a795d [2023-12-02 23:39:34,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:39:34,198 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:39:34,200 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:39:34,200 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:39:34,205 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:39:34,206 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:39:34" (1/1) ... [2023-12-02 23:39:34,207 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43de3733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:34, skipping insertion in model container [2023-12-02 23:39:34,207 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:39:34" (1/1) ... [2023-12-02 23:39:34,318 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:39:34,509 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp2.4.prop1-back-serstep.c[1172,1185] [2023-12-02 23:39:34,958 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:39:34,968 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:39:34,982 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp2.4.prop1-back-serstep.c[1172,1185] [2023-12-02 23:39:35,207 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:39:35,218 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:39:35,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:35 WrapperNode [2023-12-02 23:39:35,219 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:39:35,220 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:39:35,220 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:39:35,220 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:39:35,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:35" (1/1) ... [2023-12-02 23:39:35,357 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:35" (1/1) ... [2023-12-02 23:39:36,341 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 13057 [2023-12-02 23:39:36,341 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:39:36,342 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:39:36,343 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:39:36,343 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:39:36,355 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:35" (1/1) ... [2023-12-02 23:39:36,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:35" (1/1) ... [2023-12-02 23:39:36,679 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:35" (1/1) ... [2023-12-02 23:39:36,680 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:35" (1/1) ... [2023-12-02 23:39:36,982 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:35" (1/1) ... [2023-12-02 23:39:37,061 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:35" (1/1) ... [2023-12-02 23:39:37,154 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:35" (1/1) ... [2023-12-02 23:39:37,190 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:35" (1/1) ... [2023-12-02 23:39:37,481 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:39:37,482 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:39:37,482 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:39:37,482 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:39:37,483 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:35" (1/1) ... [2023-12-02 23:39:37,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:39:37,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:39:37,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:39:37,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:39:37,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:39:37,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 23:39:37,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:39:37,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:39:38,247 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:39:38,249 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:39:46,342 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:40:05,590 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:40:05,590 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 23:40:05,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:40:05 BoogieIcfgContainer [2023-12-02 23:40:05,592 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:40:05,593 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:40:05,594 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:40:05,601 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:40:05,602 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:40:05" (1/1) ... [2023-12-02 23:40:05,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:40:05,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:40:05,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 23:40:05,653 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 23:40:05,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 23:40:05,655 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:40:05,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:40:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:40:15,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:40:26,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 23:40:36,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 23:40:42,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:40:47,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.43s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:40:48,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:40:50,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:41:00,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:41:00,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:41:00,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-02 23:41:00,919 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-02 23:41:00,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 23:41:00,919 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:41:00,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:41:12,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 23:41:13,164 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 23:41:13,168 INFO L158 Benchmark]: Toolchain (without parser) took 98969.30ms. Allocated memory was 161.5MB in the beginning and 7.1GB in the end (delta: 6.9GB). Free memory was 123.5MB in the beginning and 5.6GB in the end (delta: -5.5GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2023-12-02 23:41:13,168 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 111.1MB. Free memory is still 86.7MB. Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 23:41:13,169 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1019.63ms. Allocated memory is still 161.5MB. Free memory was 123.1MB in the beginning and 71.3MB in the end (delta: 51.9MB). Peak memory consumption was 84.0MB. Max. memory is 16.1GB. [2023-12-02 23:41:13,170 INFO L158 Benchmark]: Boogie Procedure Inliner took 1121.86ms. Allocated memory was 161.5MB in the beginning and 408.9MB in the end (delta: 247.5MB). Free memory was 71.3MB in the beginning and 182.0MB in the end (delta: -110.7MB). Peak memory consumption was 139.2MB. Max. memory is 16.1GB. [2023-12-02 23:41:13,171 INFO L158 Benchmark]: Boogie Preprocessor took 1139.25ms. Allocated memory is still 408.9MB. Free memory was 182.0MB in the beginning and 144.2MB in the end (delta: 37.7MB). Peak memory consumption was 104.1MB. Max. memory is 16.1GB. [2023-12-02 23:41:13,172 INFO L158 Benchmark]: RCFGBuilder took 28110.25ms. Allocated memory was 408.9MB in the beginning and 5.3GB in the end (delta: 4.9GB). Free memory was 144.2MB in the beginning and 4.2GB in the end (delta: -4.1GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2023-12-02 23:41:13,173 INFO L158 Benchmark]: CodeCheck took 67573.19ms. Allocated memory was 5.3GB in the beginning and 7.1GB in the end (delta: 1.8GB). Free memory was 4.2GB in the beginning and 5.6GB in the end (delta: -1.4GB). Peak memory consumption was 440.4MB. Max. memory is 16.1GB. [2023-12-02 23:41:13,177 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: UnsupportedOperationException: Solver said unknown: de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 111.1MB. Free memory is still 86.7MB. Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1019.63ms. Allocated memory is still 161.5MB. Free memory was 123.1MB in the beginning and 71.3MB in the end (delta: 51.9MB). Peak memory consumption was 84.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 1121.86ms. Allocated memory was 161.5MB in the beginning and 408.9MB in the end (delta: 247.5MB). Free memory was 71.3MB in the beginning and 182.0MB in the end (delta: -110.7MB). Peak memory consumption was 139.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1139.25ms. Allocated memory is still 408.9MB. Free memory was 182.0MB in the beginning and 144.2MB in the end (delta: 37.7MB). Peak memory consumption was 104.1MB. Max. memory is 16.1GB. * RCFGBuilder took 28110.25ms. Allocated memory was 408.9MB in the beginning and 5.3GB in the end (delta: 4.9GB). Free memory was 144.2MB in the beginning and 4.2GB in the end (delta: -4.1GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. * CodeCheck took 67573.19ms. Allocated memory was 5.3GB in the beginning and 7.1GB in the end (delta: 1.8GB). Free memory was 4.2GB in the beginning and 5.6GB in the end (delta: -1.4GB). Peak memory consumption was 440.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 23:41:13,396 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2023-12-02 23:41:13,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp2.4.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3ef782984e81d8d56795c2fb26cedd9b1688f37cda05b15cc9bbdb350221c29b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:41:15,362 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:41:15,438 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-02 23:41:15,469 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:41:15,470 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:41:15,470 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:41:15,471 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:41:15,471 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:41:15,472 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:41:15,473 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:41:15,473 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:41:15,474 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:41:15,474 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:41:15,475 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:41:15,475 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 23:41:15,476 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 23:41:15,476 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 23:41:15,477 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:41:15,478 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:41:15,478 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:41:15,479 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:41:15,479 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:41:15,480 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 23:41:15,480 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 23:41:15,481 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:41:15,481 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:41:15,481 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:41:15,482 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:41:15,482 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:41:15,482 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 23:41:15,483 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 23:41:15,483 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:41:15,484 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 23:41:15,484 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 23:41:15,484 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ef782984e81d8d56795c2fb26cedd9b1688f37cda05b15cc9bbdb350221c29b [2023-12-02 23:41:15,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:41:15,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:41:15,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:41:15,838 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:41:15,838 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:41:15,840 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp2.4.prop1-back-serstep.c [2023-12-02 23:41:18,623 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:41:18,953 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:41:18,954 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp2.4.prop1-back-serstep.c [2023-12-02 23:41:18,976 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/data/81dda4b9f/6846e21f0d7c483a82ff3b2c0bebe963/FLAG8b6905134 [2023-12-02 23:41:18,991 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/data/81dda4b9f/6846e21f0d7c483a82ff3b2c0bebe963 [2023-12-02 23:41:18,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:41:18,995 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:41:18,997 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:41:18,997 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:41:19,002 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:41:19,003 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:41:18" (1/1) ... [2023-12-02 23:41:19,004 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17bf05bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:19, skipping insertion in model container [2023-12-02 23:41:19,004 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:41:18" (1/1) ... [2023-12-02 23:41:19,089 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:41:19,303 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp2.4.prop1-back-serstep.c[1172,1185] [2023-12-02 23:41:19,659 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:41:19,672 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:41:19,685 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp2.4.prop1-back-serstep.c[1172,1185] [2023-12-02 23:41:19,870 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:41:19,883 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:41:19,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:19 WrapperNode [2023-12-02 23:41:19,883 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:41:19,884 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:41:19,884 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:41:19,885 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:41:19,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:19" (1/1) ... [2023-12-02 23:41:19,945 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:19" (1/1) ... [2023-12-02 23:41:20,076 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3320 [2023-12-02 23:41:20,076 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:41:20,078 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:41:20,078 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:41:20,078 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:41:20,087 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:19" (1/1) ... [2023-12-02 23:41:20,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:19" (1/1) ... [2023-12-02 23:41:20,114 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:19" (1/1) ... [2023-12-02 23:41:20,114 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:19" (1/1) ... [2023-12-02 23:41:20,169 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:19" (1/1) ... [2023-12-02 23:41:20,178 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:19" (1/1) ... [2023-12-02 23:41:20,198 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:19" (1/1) ... [2023-12-02 23:41:20,214 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:19" (1/1) ... [2023-12-02 23:41:20,238 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:41:20,239 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:41:20,239 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:41:20,239 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:41:20,240 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:19" (1/1) ... [2023-12-02 23:41:20,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:41:20,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:41:20,267 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:41:20,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:41:20,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:41:20,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 23:41:20,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:41:20,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:41:20,809 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:41:20,811 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:41:27,803 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:41:28,003 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:41:28,004 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 23:41:28,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:41:28 BoogieIcfgContainer [2023-12-02 23:41:28,005 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:41:28,006 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:41:28,006 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:41:28,035 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:41:28,036 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:41:28" (1/1) ... [2023-12-02 23:41:28,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:41:28,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:41:28,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 23:41:28,088 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 23:41:28,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 23:41:28,090 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:41:28,090 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:41:28,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:41:28,092 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:41:28,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 23:41:29,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:41:29,112 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:41:29,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:41:29,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 23:41:29,430 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:41:29,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:41:29,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 23:41:32,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.27s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:41:33,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:41:33,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-02 23:41:33,186 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-02 23:41:33,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 23:41:33,186 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:41:33,186 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:41:33,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:41:33,188 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:41:33,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 23:41:35,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:41:35,478 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:41:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:41:36,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 2856 conjuncts, 107 conjunts are in the unsatisfiable core [2023-12-02 23:41:36,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:41:37,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:41:37,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-12-02 23:41:40,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.37s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:41:43,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:41:47,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.39s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:41:50,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:41:53,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:41:53,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:41:53,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 12 states and 21 transitions. [2023-12-02 23:41:53,290 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 21 transitions. [2023-12-02 23:41:53,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 23:41:53,293 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:41:53,293 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:41:53,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:41:53,294 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:41:53,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 23:41:57,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:41:57,334 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:41:58,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:41:58,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 5322 conjuncts, 360 conjunts are in the unsatisfiable core [2023-12-02 23:41:58,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:45:44,331 WARN L293 SmtUtils]: Spent 2.84m on a formula simplification. DAG size of input: 1744 DAG size of output: 1740 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:45:45,952 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:45:45,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abba7f1-96e4-41bd-b4c0-bbe130030004/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 23:45:52,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:46:05,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:46:10,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:46:14,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:46:30,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:46:31,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:49:52,791 WARN L293 SmtUtils]: Spent 2.95m on a formula simplification. DAG size of input: 1748 DAG size of output: 1747 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:52:22,572 WARN L293 SmtUtils]: Spent 1.40m on a formula simplification that was a NOOP. DAG size: 1741 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)