./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.5.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/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_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.5.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/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_fcc1bedb-f4e5-4bab-b02e-57ee75616419/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 015009dc398dc23a3948ee2b3b95e37ec7bd848c90a6f6af02af91996b3dcf38 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:16:53,297 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:16:53,384 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-02 21:16:53,391 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 21:16:53,391 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 21:16:53,421 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:16:53,422 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:16:53,423 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:16:53,424 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:16:53,425 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:16:53,426 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:16:53,426 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:16:53,427 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:16:53,428 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:16:53,428 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:16:53,429 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:16:53,429 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:16:53,430 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:16:53,431 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:16:53,431 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:16:53,432 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:16:53,433 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:16:53,434 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:16:53,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:16:53,435 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:16:53,436 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:16:53,437 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:16:53,437 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 21:16:53,438 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 21:16:53,438 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:16:53,439 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_fcc1bedb-f4e5-4bab-b02e-57ee75616419/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 015009dc398dc23a3948ee2b3b95e37ec7bd848c90a6f6af02af91996b3dcf38 [2023-12-02 21:16:53,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:16:53,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:16:53,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:16:53,747 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:16:53,748 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:16:53,749 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.5.prop1-back-serstep.c [2023-12-02 21:16:57,040 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:16:57,652 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:16:57,652 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.5.prop1-back-serstep.c [2023-12-02 21:16:57,690 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/data/f50e82fa6/2e7b0c50df524f798568409fddd15280/FLAGae54af0e0 [2023-12-02 21:16:57,706 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/data/f50e82fa6/2e7b0c50df524f798568409fddd15280 [2023-12-02 21:16:57,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:16:57,711 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:16:57,712 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:16:57,712 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:16:57,717 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:16:57,718 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:16:57" (1/1) ... [2023-12-02 21:16:57,719 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72b96b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:16:57, skipping insertion in model container [2023-12-02 21:16:57,720 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:16:57" (1/1) ... [2023-12-02 21:16:57,922 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:16:58,272 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_fcc1bedb-f4e5-4bab-b02e-57ee75616419/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.5.prop1-back-serstep.c[1174,1187] [2023-12-02 21:16:59,862 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:16:59,878 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:16:59,894 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_fcc1bedb-f4e5-4bab-b02e-57ee75616419/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.5.prop1-back-serstep.c[1174,1187] [2023-12-02 21:17:01,097 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:17:01,113 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:17:01,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:17:01 WrapperNode [2023-12-02 21:17:01,114 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:17:01,116 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:17:01,116 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:17:01,116 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:17:01,126 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:17:01" (1/1) ... [2023-12-02 21:17:01,430 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:17:01" (1/1) ... [2023-12-02 21:17:04,816 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48907 [2023-12-02 21:17:04,816 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:17:04,817 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:17:04,817 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:17:04,817 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:17:04,827 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:17:01" (1/1) ... [2023-12-02 21:17:04,827 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:17:01" (1/1) ... [2023-12-02 21:17:05,764 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:17:01" (1/1) ... [2023-12-02 21:17:05,765 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:17:01" (1/1) ... [2023-12-02 21:17:06,663 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:17:01" (1/1) ... [2023-12-02 21:17:06,850 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:17:01" (1/1) ... [2023-12-02 21:17:07,131 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:17:01" (1/1) ... [2023-12-02 21:17:07,267 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:17:01" (1/1) ... [2023-12-02 21:17:08,260 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:17:08,261 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:17:08,261 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:17:08,262 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:17:08,263 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:17:01" (1/1) ... [2023-12-02 21:17:08,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:17:08,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:17:08,301 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:17:08,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:17:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:17:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 21:17:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:17:08,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:17:10,495 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:17:10,497 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:17:37,397 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:19:56,068 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:19:56,068 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 21:19:56,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:19:56 BoogieIcfgContainer [2023-12-02 21:19:56,070 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:19:56,072 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:19:56,073 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:19:56,086 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:19:56,086 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:19:56" (1/1) ... [2023-12-02 21:19:56,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:19:56,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:19:56,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 21:19:56,162 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 21:19:56,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 21:19:56,165 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:19:56,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:20:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:20:40,754 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 21:20:54,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 13.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 21:21:04,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 21:21:08,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:21:18,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:21:28,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:21:38,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:21:41,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:21:51,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:22:01,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:22:01,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:01,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-02 21:22:01,728 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-02 21:22:01,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:22:01,728 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:01,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:22:27,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 21:22:27,605 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 21:22:27,609 INFO L158 Benchmark]: Toolchain (without parser) took 329898.23ms. Allocated memory was 151.0MB in the beginning and 14.6GB in the end (delta: 14.5GB). Free memory was 107.8MB in the beginning and 11.4GB in the end (delta: -11.3GB). Peak memory consumption was 3.4GB. Max. memory is 16.1GB. [2023-12-02 21:22:27,610 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 107.0MB. Free memory is still 60.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:22:27,611 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3402.57ms. Allocated memory was 151.0MB in the beginning and 541.1MB in the end (delta: 390.1MB). Free memory was 107.8MB in the beginning and 276.6MB in the end (delta: -168.8MB). Peak memory consumption was 222.8MB. Max. memory is 16.1GB. [2023-12-02 21:22:27,612 INFO L158 Benchmark]: Boogie Procedure Inliner took 3700.37ms. Allocated memory was 541.1MB in the beginning and 4.4GB in the end (delta: 3.8GB). Free memory was 276.6MB in the beginning and 3.5GB in the end (delta: -3.2GB). Peak memory consumption was 597.2MB. Max. memory is 16.1GB. [2023-12-02 21:22:27,612 INFO L158 Benchmark]: Boogie Preprocessor took 3443.26ms. Allocated memory is still 4.4GB. Free memory was 3.5GB in the beginning and 3.3GB in the end (delta: 216.0MB). Peak memory consumption was 361.8MB. Max. memory is 16.1GB. [2023-12-02 21:22:27,613 INFO L158 Benchmark]: RCFGBuilder took 167809.67ms. Allocated memory was 4.4GB in the beginning and 14.5GB in the end (delta: 10.1GB). Free memory was 3.3GB in the beginning and 11.9GB in the end (delta: -8.6GB). Peak memory consumption was 7.0GB. Max. memory is 16.1GB. [2023-12-02 21:22:27,614 INFO L158 Benchmark]: CodeCheck took 151535.54ms. Allocated memory was 14.5GB in the beginning and 14.6GB in the end (delta: 172.0MB). Free memory was 11.9GB in the beginning and 11.4GB in the end (delta: 473.7MB). Peak memory consumption was 836.4MB. Max. memory is 16.1GB. [2023-12-02 21:22:27,619 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 0.21ms. Allocated memory is still 107.0MB. Free memory is still 60.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3402.57ms. Allocated memory was 151.0MB in the beginning and 541.1MB in the end (delta: 390.1MB). Free memory was 107.8MB in the beginning and 276.6MB in the end (delta: -168.8MB). Peak memory consumption was 222.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 3700.37ms. Allocated memory was 541.1MB in the beginning and 4.4GB in the end (delta: 3.8GB). Free memory was 276.6MB in the beginning and 3.5GB in the end (delta: -3.2GB). Peak memory consumption was 597.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 3443.26ms. Allocated memory is still 4.4GB. Free memory was 3.5GB in the beginning and 3.3GB in the end (delta: 216.0MB). Peak memory consumption was 361.8MB. Max. memory is 16.1GB. * RCFGBuilder took 167809.67ms. Allocated memory was 4.4GB in the beginning and 14.5GB in the end (delta: 10.1GB). Free memory was 3.3GB in the beginning and 11.9GB in the end (delta: -8.6GB). Peak memory consumption was 7.0GB. Max. memory is 16.1GB. * CodeCheck took 151535.54ms. Allocated memory was 14.5GB in the beginning and 14.6GB in the end (delta: 172.0MB). Free memory was 11.9GB in the beginning and 11.4GB in the end (delta: 473.7MB). Peak memory consumption was 836.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 21:22:27,831 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2023-12-02 21:22:27,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/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_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.5.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/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_fcc1bedb-f4e5-4bab-b02e-57ee75616419/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 015009dc398dc23a3948ee2b3b95e37ec7bd848c90a6f6af02af91996b3dcf38 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:22:30,871 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:22:30,957 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-02 21:22:30,993 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:22:30,995 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:22:30,995 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:22:30,996 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:22:30,997 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:22:30,997 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:22:30,998 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:22:30,999 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:22:30,999 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:22:31,000 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:22:31,000 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:22:31,001 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 21:22:31,001 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 21:22:31,002 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 21:22:31,002 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:22:31,003 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:22:31,003 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:22:31,004 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:22:31,004 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:22:31,005 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:22:31,005 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 21:22:31,006 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:22:31,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:22:31,007 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:22:31,007 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:22:31,008 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:22:31,008 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 21:22:31,009 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:22:31,009 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:22:31,009 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 21:22:31,010 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 21:22:31,010 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_fcc1bedb-f4e5-4bab-b02e-57ee75616419/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 015009dc398dc23a3948ee2b3b95e37ec7bd848c90a6f6af02af91996b3dcf38 [2023-12-02 21:22:31,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:22:31,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:22:31,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:22:31,350 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:22:31,354 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:22:31,356 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.5.prop1-back-serstep.c [2023-12-02 21:22:34,605 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:22:35,167 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:22:35,168 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.5.prop1-back-serstep.c [2023-12-02 21:22:35,237 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/data/4e8fbaf96/12cf5adb094f48ae8034be713ec8edc1/FLAG792edb8d7 [2023-12-02 21:22:35,257 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/data/4e8fbaf96/12cf5adb094f48ae8034be713ec8edc1 [2023-12-02 21:22:35,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:22:35,262 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:22:35,264 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:22:35,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:22:35,271 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:22:35,272 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:22:35" (1/1) ... [2023-12-02 21:22:35,273 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38da94ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:35, skipping insertion in model container [2023-12-02 21:22:35,274 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:22:35" (1/1) ... [2023-12-02 21:22:35,560 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:22:35,884 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_fcc1bedb-f4e5-4bab-b02e-57ee75616419/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.5.prop1-back-serstep.c[1174,1187] [2023-12-02 21:22:36,971 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:22:36,989 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:22:37,008 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_fcc1bedb-f4e5-4bab-b02e-57ee75616419/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.5.prop1-back-serstep.c[1174,1187] [2023-12-02 21:22:37,853 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:22:37,874 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:22:37,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:37 WrapperNode [2023-12-02 21:22:37,875 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:22:37,877 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:22:37,877 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:22:37,878 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:22:37,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:37" (1/1) ... [2023-12-02 21:22:38,085 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:37" (1/1) ... [2023-12-02 21:22:38,502 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 12960 [2023-12-02 21:22:38,502 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:22:38,503 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:22:38,503 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:22:38,504 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:22:38,515 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:37" (1/1) ... [2023-12-02 21:22:38,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:37" (1/1) ... [2023-12-02 21:22:38,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:37" (1/1) ... [2023-12-02 21:22:38,619 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:37" (1/1) ... [2023-12-02 21:22:38,797 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:37" (1/1) ... [2023-12-02 21:22:38,823 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:37" (1/1) ... [2023-12-02 21:22:38,925 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:37" (1/1) ... [2023-12-02 21:22:38,973 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:37" (1/1) ... [2023-12-02 21:22:39,088 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:22:39,091 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:22:39,091 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:22:39,091 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:22:39,092 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:37" (1/1) ... [2023-12-02 21:22:39,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:22:39,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:22:39,133 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:22:39,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:22:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:22:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 21:22:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:22:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:22:40,909 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:22:40,911 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:23:43,755 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:23:44,254 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:23:44,254 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 21:23:44,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:23:44 BoogieIcfgContainer [2023-12-02 21:23:44,256 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:23:44,257 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:23:44,257 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:23:44,266 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:23:44,266 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:23:44" (1/1) ... [2023-12-02 21:23:44,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:23:44,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:23:44,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 21:23:44,323 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 21:23:44,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 21:23:44,325 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:23:44,325 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:23:44,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:23:44,328 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:23:44,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 21:23:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:47,189 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:23:47,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:47,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 21:23:48,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:23:48,210 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 21:23:48,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 21:23:59,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:24:09,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:24:09,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:24:09,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-02 21:24:09,835 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-02 21:24:09,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:24:09,836 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:24:09,836 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:24:09,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:24:09,837 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:24:09,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 21:24:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:18,463 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:24:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:22,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 11146 conjuncts, 269 conjunts are in the unsatisfiable core [2023-12-02 21:24:22,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:24:25,231 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 21:24:25,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-12-02 21:24:36,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.70s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:24:47,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:24:59,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:25:04,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.68s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:25:17,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.71s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:25:28,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:25:39,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:25:39,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:25:39,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 12 states and 21 transitions. [2023-12-02 21:25:39,462 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 21 transitions. [2023-12-02 21:25:39,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:25:39,464 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:25:39,465 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:25:39,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:25:39,466 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:25:39,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcc1bedb-f4e5-4bab-b02e-57ee75616419/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 21:25:55,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:25:55,563 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:26:02,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:26:02,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 21235 conjuncts, 908 conjunts are in the unsatisfiable core [2023-12-02 21:26:02,807 INFO L285 TraceCheckSpWp]: Computing forward predicates...