./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.1.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_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/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_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.1.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/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_49ea949e-3de2-4916-b00d-c11e8f614f80/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 93ebfa66c1439c8bbc7ef028ab038976c522d381ca95ae1d4face78ba91e646f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:42:45,167 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:42:45,235 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-02 21:42:45,239 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 21:42:45,240 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 21:42:45,262 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:42:45,263 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:42:45,264 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:42:45,265 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:42:45,265 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:42:45,266 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:42:45,267 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:42:45,267 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:42:45,268 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:42:45,268 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:42:45,269 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:42:45,270 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:42:45,270 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:42:45,271 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:42:45,271 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:42:45,272 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:42:45,273 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:42:45,273 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:42:45,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:42:45,274 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:42:45,275 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:42:45,275 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:42:45,276 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 21:42:45,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 21:42:45,277 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:42:45,277 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_49ea949e-3de2-4916-b00d-c11e8f614f80/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93ebfa66c1439c8bbc7ef028ab038976c522d381ca95ae1d4face78ba91e646f [2023-12-02 21:42:45,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:42:45,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:42:45,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:42:45,518 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:42:45,519 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:42:45,521 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.1.prop1-back-serstep.c [2023-12-02 21:42:48,402 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:42:48,710 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:42:48,710 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.1.prop1-back-serstep.c [2023-12-02 21:42:48,733 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/data/444efa8cf/46151d36b92b4272a36e4876aa10c3ab/FLAGca2d78680 [2023-12-02 21:42:48,747 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/data/444efa8cf/46151d36b92b4272a36e4876aa10c3ab [2023-12-02 21:42:48,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:42:48,751 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:42:48,752 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:42:48,753 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:42:48,758 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:42:48,758 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:42:48" (1/1) ... [2023-12-02 21:42:48,762 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a4b306a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:42:48, skipping insertion in model container [2023-12-02 21:42:48,762 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:42:48" (1/1) ... [2023-12-02 21:42:48,844 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:42:49,011 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_49ea949e-3de2-4916-b00d-c11e8f614f80/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.1.prop1-back-serstep.c[1170,1183] [2023-12-02 21:42:49,479 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:42:49,489 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:42:49,498 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_49ea949e-3de2-4916-b00d-c11e8f614f80/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.1.prop1-back-serstep.c[1170,1183] [2023-12-02 21:42:49,666 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:42:49,680 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:42:49,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:42:49 WrapperNode [2023-12-02 21:42:49,681 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:42:49,682 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:42:49,682 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:42:49,683 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:42:49,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:42:49" (1/1) ... [2023-12-02 21:42:49,810 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:42:49" (1/1) ... [2023-12-02 21:42:50,694 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 11683 [2023-12-02 21:42:50,695 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:42:50,696 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:42:50,696 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:42:50,696 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:42:50,705 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:42:49" (1/1) ... [2023-12-02 21:42:50,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:42:49" (1/1) ... [2023-12-02 21:42:50,904 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:42:49" (1/1) ... [2023-12-02 21:42:50,905 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:42:49" (1/1) ... [2023-12-02 21:42:51,249 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:42:49" (1/1) ... [2023-12-02 21:42:51,359 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:42:49" (1/1) ... [2023-12-02 21:42:51,435 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:42:49" (1/1) ... [2023-12-02 21:42:51,473 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:42:49" (1/1) ... [2023-12-02 21:42:51,611 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:42:51,612 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:42:51,612 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:42:51,612 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:42:51,613 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:42:49" (1/1) ... [2023-12-02 21:42:51,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:42:51,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:42:51,643 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:42:51,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:42:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:42:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 21:42:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:42:51,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:42:52,200 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:42:52,201 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:42:59,969 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:43:13,880 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:43:13,881 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 21:43:13,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:43:13 BoogieIcfgContainer [2023-12-02 21:43:13,882 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:43:13,883 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:43:13,883 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:43:13,892 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:43:13,892 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:43:13" (1/1) ... [2023-12-02 21:43:13,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:43:13,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:43:13,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 21:43:13,946 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 21:43:13,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 21:43:13,949 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:43:13,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:43:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:43:25,116 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 21:43:35,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 21:43:45,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 21:43:55,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:44:00,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.87s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:44:10,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:44:22,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:44:22,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:44:22,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-02 21:44:22,101 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-02 21:44:22,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:44:22,101 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:44:22,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:44:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 21:44:34,127 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 21:44:34,131 INFO L158 Benchmark]: Toolchain (without parser) took 105379.40ms. Allocated memory was 186.6MB in the beginning and 5.9GB in the end (delta: 5.7GB). Free memory was 142.9MB in the beginning and 4.5GB in the end (delta: -4.4GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2023-12-02 21:44:34,131 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 69.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:44:34,132 INFO L158 Benchmark]: CACSL2BoogieTranslator took 929.01ms. Allocated memory is still 186.6MB. Free memory was 142.9MB in the beginning and 75.9MB in the end (delta: 67.1MB). Peak memory consumption was 80.6MB. Max. memory is 16.1GB. [2023-12-02 21:44:34,133 INFO L158 Benchmark]: Boogie Procedure Inliner took 1013.07ms. Allocated memory was 186.6MB in the beginning and 471.9MB in the end (delta: 285.2MB). Free memory was 75.9MB in the beginning and 234.1MB in the end (delta: -158.3MB). Peak memory consumption was 152.9MB. Max. memory is 16.1GB. [2023-12-02 21:44:34,134 INFO L158 Benchmark]: Boogie Preprocessor took 915.24ms. Allocated memory is still 471.9MB. Free memory was 234.1MB in the beginning and 195.3MB in the end (delta: 38.8MB). Peak memory consumption was 112.2MB. Max. memory is 16.1GB. [2023-12-02 21:44:34,135 INFO L158 Benchmark]: RCFGBuilder took 22270.52ms. Allocated memory was 471.9MB in the beginning and 3.6GB in the end (delta: 3.1GB). Free memory was 194.3MB in the beginning and 2.6GB in the end (delta: -2.4GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2023-12-02 21:44:34,135 INFO L158 Benchmark]: CodeCheck took 80246.62ms. Allocated memory was 3.6GB in the beginning and 5.9GB in the end (delta: 2.3GB). Free memory was 2.6GB in the beginning and 4.5GB in the end (delta: -1.9GB). Peak memory consumption was 406.6MB. Max. memory is 16.1GB. [2023-12-02 21:44:34,139 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 0.34ms. Allocated memory is still 117.4MB. Free memory is still 69.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 929.01ms. Allocated memory is still 186.6MB. Free memory was 142.9MB in the beginning and 75.9MB in the end (delta: 67.1MB). Peak memory consumption was 80.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 1013.07ms. Allocated memory was 186.6MB in the beginning and 471.9MB in the end (delta: 285.2MB). Free memory was 75.9MB in the beginning and 234.1MB in the end (delta: -158.3MB). Peak memory consumption was 152.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 915.24ms. Allocated memory is still 471.9MB. Free memory was 234.1MB in the beginning and 195.3MB in the end (delta: 38.8MB). Peak memory consumption was 112.2MB. Max. memory is 16.1GB. * RCFGBuilder took 22270.52ms. Allocated memory was 471.9MB in the beginning and 3.6GB in the end (delta: 3.1GB). Free memory was 194.3MB in the beginning and 2.6GB in the end (delta: -2.4GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * CodeCheck took 80246.62ms. Allocated memory was 3.6GB in the beginning and 5.9GB in the end (delta: 2.3GB). Free memory was 2.6GB in the beginning and 4.5GB in the end (delta: -1.9GB). Peak memory consumption was 406.6MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 21:44:34,353 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2023-12-02 21:44:34,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/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_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/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_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.1.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/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_49ea949e-3de2-4916-b00d-c11e8f614f80/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 93ebfa66c1439c8bbc7ef028ab038976c522d381ca95ae1d4face78ba91e646f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:44:36,310 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:44:36,374 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-02 21:44:36,413 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:44:36,414 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:44:36,414 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:44:36,415 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:44:36,416 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:44:36,416 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:44:36,417 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:44:36,417 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:44:36,418 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:44:36,418 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:44:36,419 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:44:36,420 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 21:44:36,420 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 21:44:36,421 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 21:44:36,421 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:44:36,422 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:44:36,423 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:44:36,423 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:44:36,425 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:44:36,426 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:44:36,426 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 21:44:36,426 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:44:36,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:44:36,427 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:44:36,428 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:44:36,428 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:44:36,428 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 21:44:36,429 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:44:36,429 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:44:36,429 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 21:44:36,430 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 21:44:36,430 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_49ea949e-3de2-4916-b00d-c11e8f614f80/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93ebfa66c1439c8bbc7ef028ab038976c522d381ca95ae1d4face78ba91e646f [2023-12-02 21:44:36,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:44:36,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:44:36,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:44:36,727 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:44:36,728 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:44:36,729 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.1.prop1-back-serstep.c [2023-12-02 21:44:39,527 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:44:39,915 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:44:39,915 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.1.prop1-back-serstep.c [2023-12-02 21:44:39,940 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/data/8b4a73594/34888ff631114cbc982a0e71da6f7fe9/FLAG5b6b4147a [2023-12-02 21:44:39,956 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/data/8b4a73594/34888ff631114cbc982a0e71da6f7fe9 [2023-12-02 21:44:39,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:44:39,961 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:44:39,962 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:44:39,962 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:44:39,968 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:44:39,969 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:44:39" (1/1) ... [2023-12-02 21:44:39,970 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4faa0b61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:44:39, skipping insertion in model container [2023-12-02 21:44:39,971 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:44:39" (1/1) ... [2023-12-02 21:44:40,055 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:44:40,264 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_49ea949e-3de2-4916-b00d-c11e8f614f80/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.1.prop1-back-serstep.c[1170,1183] [2023-12-02 21:44:40,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:44:40,616 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:44:40,629 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_49ea949e-3de2-4916-b00d-c11e8f614f80/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.1.prop1-back-serstep.c[1170,1183] [2023-12-02 21:44:40,826 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:44:40,841 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:44:40,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:44:40 WrapperNode [2023-12-02 21:44:40,842 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:44:40,843 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:44:40,843 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:44:40,843 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:44:40,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:44:40" (1/1) ... [2023-12-02 21:44:40,905 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:44:40" (1/1) ... [2023-12-02 21:44:41,017 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3098 [2023-12-02 21:44:41,017 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:44:41,018 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:44:41,018 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:44:41,050 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:44:41,060 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:44:40" (1/1) ... [2023-12-02 21:44:41,061 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:44:40" (1/1) ... [2023-12-02 21:44:41,082 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:44:40" (1/1) ... [2023-12-02 21:44:41,083 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:44:40" (1/1) ... [2023-12-02 21:44:41,145 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:44:40" (1/1) ... [2023-12-02 21:44:41,155 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:44:40" (1/1) ... [2023-12-02 21:44:41,169 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:44:40" (1/1) ... [2023-12-02 21:44:41,181 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:44:40" (1/1) ... [2023-12-02 21:44:41,202 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:44:41,203 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:44:41,204 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:44:41,204 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:44:41,205 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:44:40" (1/1) ... [2023-12-02 21:44:41,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:44:41,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:44:41,240 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:44:41,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:44:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:44:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 21:44:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:44:41,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:44:41,762 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:44:41,765 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:44:46,578 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:44:46,776 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:44:46,776 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 21:44:46,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:44:46 BoogieIcfgContainer [2023-12-02 21:44:46,778 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:44:46,779 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:44:46,779 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:44:46,789 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:44:46,789 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:44:46" (1/1) ... [2023-12-02 21:44:46,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:44:46,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:44:46,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 21:44:46,850 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 21:44:46,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 21:44:46,853 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:44:46,853 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:44:46,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:44:46,854 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:44:46,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 21:44:47,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:44:47,777 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:44:48,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:44:48,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 21:44:48,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:44:48,156 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 21:44:48,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 21:44:49,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:44:49,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-02 21:44:49,110 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-02 21:44:49,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:44:49,111 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:44:49,111 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:44:49,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:44:49,116 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:44:49,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 21:44:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:44:51,123 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:44:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:44:51,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 2656 conjuncts, 116 conjunts are in the unsatisfiable core [2023-12-02 21:44:52,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:44:54,389 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 21:44:54,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 21:45:00,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:45:00,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 12 states and 21 transitions. [2023-12-02 21:45:00,610 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 21 transitions. [2023-12-02 21:45:00,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:45:00,612 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:45:00,612 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:45:00,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:45:00,613 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:45:00,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ea949e-3de2-4916-b00d-c11e8f614f80/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 21:45:03,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:45:03,602 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:45:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:45:05,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 4955 conjuncts, 573 conjunts are in the unsatisfiable core [2023-12-02 21:45:05,336 INFO L285 TraceCheckSpWp]: Computing forward predicates...