./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.3.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_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/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_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.3.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/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_c4c89669-8854-46b4-9d1d-a24c39856c54/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 c21c7a04f7c65d646dcfd58f2b9e1376593565a3afb4592eab5eb3bc899fc96f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 04:45:27,290 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 04:45:27,358 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-03 04:45:27,362 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 04:45:27,363 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 04:45:27,386 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 04:45:27,387 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 04:45:27,387 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 04:45:27,388 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 04:45:27,389 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 04:45:27,389 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 04:45:27,390 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 04:45:27,390 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 04:45:27,391 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 04:45:27,391 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 04:45:27,391 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 04:45:27,392 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 04:45:27,392 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 04:45:27,393 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 04:45:27,393 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 04:45:27,394 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 04:45:27,395 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 04:45:27,395 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 04:45:27,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:45:27,396 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 04:45:27,397 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 04:45:27,397 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 04:45:27,397 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 04:45:27,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 04:45:27,398 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 04:45:27,399 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_c4c89669-8854-46b4-9d1d-a24c39856c54/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c21c7a04f7c65d646dcfd58f2b9e1376593565a3afb4592eab5eb3bc899fc96f [2023-12-03 04:45:27,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 04:45:27,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 04:45:27,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 04:45:27,638 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 04:45:27,639 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 04:45:27,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.3.prop1-back-serstep.c [2023-12-03 04:45:30,360 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 04:45:30,662 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 04:45:30,663 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.3.prop1-back-serstep.c [2023-12-03 04:45:30,684 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/data/776099a22/3e9caafbd9dd467fa1cea6050d233694/FLAG28bd15dc7 [2023-12-03 04:45:30,698 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/data/776099a22/3e9caafbd9dd467fa1cea6050d233694 [2023-12-03 04:45:30,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 04:45:30,703 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 04:45:30,704 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 04:45:30,704 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 04:45:30,709 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 04:45:30,710 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:45:30" (1/1) ... [2023-12-03 04:45:30,711 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69bac1ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:30, skipping insertion in model container [2023-12-03 04:45:30,711 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:45:30" (1/1) ... [2023-12-03 04:45:30,807 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 04:45:30,999 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_c4c89669-8854-46b4-9d1d-a24c39856c54/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.3.prop1-back-serstep.c[1177,1190] [2023-12-03 04:45:31,513 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:45:31,524 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 04:45:31,536 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_c4c89669-8854-46b4-9d1d-a24c39856c54/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.3.prop1-back-serstep.c[1177,1190] [2023-12-03 04:45:31,825 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:45:31,840 INFO L206 MainTranslator]: Completed translation [2023-12-03 04:45:31,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:31 WrapperNode [2023-12-03 04:45:31,840 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 04:45:31,841 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 04:45:31,841 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 04:45:31,841 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 04:45:31,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:31" (1/1) ... [2023-12-03 04:45:31,930 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:31" (1/1) ... [2023-12-03 04:45:32,943 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 14304 [2023-12-03 04:45:32,944 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 04:45:32,944 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 04:45:32,944 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 04:45:32,944 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 04:45:32,951 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:31" (1/1) ... [2023-12-03 04:45:32,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:31" (1/1) ... [2023-12-03 04:45:33,231 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:31" (1/1) ... [2023-12-03 04:45:33,232 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:31" (1/1) ... [2023-12-03 04:45:33,557 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:31" (1/1) ... [2023-12-03 04:45:33,647 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:31" (1/1) ... [2023-12-03 04:45:33,873 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:31" (1/1) ... [2023-12-03 04:45:33,913 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:31" (1/1) ... [2023-12-03 04:45:34,095 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 04:45:34,096 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 04:45:34,096 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 04:45:34,096 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 04:45:34,097 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:31" (1/1) ... [2023-12-03 04:45:34,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:45:34,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 04:45:34,128 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 04:45:34,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 04:45:34,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 04:45:34,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 04:45:34,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 04:45:34,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 04:45:34,868 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 04:45:34,870 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 04:45:43,418 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 04:46:06,454 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 04:46:06,454 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 04:46:06,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:46:06 BoogieIcfgContainer [2023-12-03 04:46:06,456 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 04:46:06,457 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 04:46:06,457 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 04:46:06,464 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 04:46:06,464 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:46:06" (1/1) ... [2023-12-03 04:46:06,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 04:46:06,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:46:06,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 04:46:06,513 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 04:46:06,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 04:46:06,515 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:46:06,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:46:08,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:46:12,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:46:23,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.81s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 04:46:33,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 04:46:40,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.94s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:46:42,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:46:48,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.50s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:46:50,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:47:00,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:47:00,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:47:00,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-03 04:47:00,723 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-03 04:47:00,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 04:47:00,724 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:47:00,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:47:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-03 04:47:13,361 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) [2023-12-03 04:47:13,365 INFO L158 Benchmark]: Toolchain (without parser) took 102661.89ms. Allocated memory was 157.3MB in the beginning and 6.4GB in the end (delta: 6.3GB). Free memory was 104.6MB in the beginning and 5.2GB in the end (delta: -5.1GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2023-12-03 04:47:13,366 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 157.3MB. Free memory is still 127.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:47:13,366 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1136.52ms. Allocated memory was 157.3MB in the beginning and 199.2MB in the end (delta: 41.9MB). Free memory was 104.4MB in the beginning and 116.7MB in the end (delta: -12.3MB). Peak memory consumption was 100.9MB. Max. memory is 16.1GB. [2023-12-03 04:47:13,367 INFO L158 Benchmark]: Boogie Procedure Inliner took 1102.56ms. Allocated memory was 199.2MB in the beginning and 335.5MB in the end (delta: 136.3MB). Free memory was 116.7MB in the beginning and 102.8MB in the end (delta: 13.9MB). Peak memory consumption was 192.9MB. Max. memory is 16.1GB. [2023-12-03 04:47:13,368 INFO L158 Benchmark]: Boogie Preprocessor took 1150.80ms. Allocated memory was 335.5MB in the beginning and 564.1MB in the end (delta: 228.6MB). Free memory was 102.8MB in the beginning and 252.0MB in the end (delta: -149.2MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. [2023-12-03 04:47:13,369 INFO L158 Benchmark]: RCFGBuilder took 32360.21ms. Allocated memory was 564.1MB in the beginning and 5.7GB in the end (delta: 5.1GB). Free memory was 252.0MB in the beginning and 4.7GB in the end (delta: -4.5GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2023-12-03 04:47:13,370 INFO L158 Benchmark]: CodeCheck took 66907.30ms. Allocated memory was 5.7GB in the beginning and 6.4GB in the end (delta: 736.1MB). Free memory was 4.7GB in the beginning and 5.2GB in the end (delta: -424.1MB). Peak memory consumption was 308.8MB. Max. memory is 16.1GB. [2023-12-03 04:47:13,374 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 0.19ms. Allocated memory is still 157.3MB. Free memory is still 127.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1136.52ms. Allocated memory was 157.3MB in the beginning and 199.2MB in the end (delta: 41.9MB). Free memory was 104.4MB in the beginning and 116.7MB in the end (delta: -12.3MB). Peak memory consumption was 100.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 1102.56ms. Allocated memory was 199.2MB in the beginning and 335.5MB in the end (delta: 136.3MB). Free memory was 116.7MB in the beginning and 102.8MB in the end (delta: 13.9MB). Peak memory consumption was 192.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1150.80ms. Allocated memory was 335.5MB in the beginning and 564.1MB in the end (delta: 228.6MB). Free memory was 102.8MB in the beginning and 252.0MB in the end (delta: -149.2MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. * RCFGBuilder took 32360.21ms. Allocated memory was 564.1MB in the beginning and 5.7GB in the end (delta: 5.1GB). Free memory was 252.0MB in the beginning and 4.7GB in the end (delta: -4.5GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. * CodeCheck took 66907.30ms. Allocated memory was 5.7GB in the beginning and 6.4GB in the end (delta: 736.1MB). Free memory was 4.7GB in the beginning and 5.2GB in the end (delta: -424.1MB). Peak memory consumption was 308.8MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-03 04:47:13,586 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2023-12-03 04:47:13,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/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_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/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_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.3.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/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_c4c89669-8854-46b4-9d1d-a24c39856c54/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 c21c7a04f7c65d646dcfd58f2b9e1376593565a3afb4592eab5eb3bc899fc96f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 04:47:15,545 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 04:47:15,625 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-03 04:47:15,658 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 04:47:15,659 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 04:47:15,660 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 04:47:15,661 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 04:47:15,661 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 04:47:15,662 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 04:47:15,662 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 04:47:15,663 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 04:47:15,663 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 04:47:15,664 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 04:47:15,664 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 04:47:15,665 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 04:47:15,665 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 04:47:15,666 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 04:47:15,667 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 04:47:15,667 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 04:47:15,668 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 04:47:15,668 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 04:47:15,669 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 04:47:15,669 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 04:47:15,670 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 04:47:15,670 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 04:47:15,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:47:15,671 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 04:47:15,672 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 04:47:15,672 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 04:47:15,672 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 04:47:15,673 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 04:47:15,673 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 04:47:15,674 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 04:47:15,674 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 04:47:15,674 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_c4c89669-8854-46b4-9d1d-a24c39856c54/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c21c7a04f7c65d646dcfd58f2b9e1376593565a3afb4592eab5eb3bc899fc96f [2023-12-03 04:47:15,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 04:47:15,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 04:47:15,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 04:47:15,985 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 04:47:15,985 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 04:47:15,987 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.3.prop1-back-serstep.c [2023-12-03 04:47:18,692 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 04:47:19,052 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 04:47:19,052 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.3.prop1-back-serstep.c [2023-12-03 04:47:19,079 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/data/e6ffcace7/1ed6a76671ae44a0b183bd79d5c59aa7/FLAGc735ad826 [2023-12-03 04:47:19,094 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/data/e6ffcace7/1ed6a76671ae44a0b183bd79d5c59aa7 [2023-12-03 04:47:19,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 04:47:19,099 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 04:47:19,100 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 04:47:19,100 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 04:47:19,105 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 04:47:19,106 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:47:19" (1/1) ... [2023-12-03 04:47:19,107 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22546111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:47:19, skipping insertion in model container [2023-12-03 04:47:19,107 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:47:19" (1/1) ... [2023-12-03 04:47:19,181 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 04:47:19,396 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_c4c89669-8854-46b4-9d1d-a24c39856c54/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.3.prop1-back-serstep.c[1177,1190] [2023-12-03 04:47:19,784 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:47:19,796 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 04:47:19,809 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_c4c89669-8854-46b4-9d1d-a24c39856c54/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.3.prop1-back-serstep.c[1177,1190] [2023-12-03 04:47:20,005 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:47:20,016 INFO L206 MainTranslator]: Completed translation [2023-12-03 04:47:20,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:47:20 WrapperNode [2023-12-03 04:47:20,017 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 04:47:20,018 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 04:47:20,018 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 04:47:20,018 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 04:47:20,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:47:20" (1/1) ... [2023-12-03 04:47:20,073 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:47:20" (1/1) ... [2023-12-03 04:47:20,175 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3205 [2023-12-03 04:47:20,175 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 04:47:20,176 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 04:47:20,176 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 04:47:20,176 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 04:47:20,183 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:47:20" (1/1) ... [2023-12-03 04:47:20,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:47:20" (1/1) ... [2023-12-03 04:47:20,228 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:47:20" (1/1) ... [2023-12-03 04:47:20,228 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:47:20" (1/1) ... [2023-12-03 04:47:20,288 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:47:20" (1/1) ... [2023-12-03 04:47:20,296 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:47:20" (1/1) ... [2023-12-03 04:47:20,310 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:47:20" (1/1) ... [2023-12-03 04:47:20,320 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:47:20" (1/1) ... [2023-12-03 04:47:20,334 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 04:47:20,335 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 04:47:20,335 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 04:47:20,335 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 04:47:20,336 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:47:20" (1/1) ... [2023-12-03 04:47:20,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:47:20,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 04:47:20,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 04:47:20,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 04:47:20,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 04:47:20,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 04:47:20,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 04:47:20,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 04:47:20,887 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 04:47:20,889 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 04:47:35,517 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 04:47:35,693 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 04:47:35,693 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 04:47:35,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:47:35 BoogieIcfgContainer [2023-12-03 04:47:35,695 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 04:47:35,696 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 04:47:35,696 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 04:47:35,706 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 04:47:35,706 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:47:35" (1/1) ... [2023-12-03 04:47:35,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 04:47:35,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:47:35,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 04:47:35,761 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 04:47:35,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 04:47:35,762 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:47:35,763 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:47:35,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:47:35,764 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:47:35,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 04:47:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:47:36,704 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:47:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:47:36,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 04:47:37,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:47:37,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:47:37,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 04:47:48,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.73s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:47:50,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:47:50,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:47:50,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-03 04:47:50,782 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-03 04:47:50,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 04:47:50,782 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:47:50,783 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:47:50,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:47:50,784 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:47:50,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 04:47:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:47:56,558 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:47:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:47:58,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 2655 conjuncts, 83 conjunts are in the unsatisfiable core [2023-12-03 04:47:58,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:47:59,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:47:59,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 04:48:10,734 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 [] [2023-12-03 04:48:21,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.69s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:48:34,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.71s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:48:44,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:48:47,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.69s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:49:00,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.70s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:49:11,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:49:12,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:49:12,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 12 states and 21 transitions. [2023-12-03 04:49:12,960 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 21 transitions. [2023-12-03 04:49:12,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 04:49:12,962 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:49:12,962 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:49:12,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:49:12,963 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:49:12,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 04:49:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:49:23,590 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:49:26,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:49:26,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 4992 conjuncts, 884 conjunts are in the unsatisfiable core [2023-12-03 04:49:26,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:51:48,187 WARN L293 SmtUtils]: Spent 34.91s on a formula simplification. DAG size of input: 1615 DAG size of output: 1609 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 04:51:50,867 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:51:50,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c89669-8854-46b4-9d1d-a24c39856c54/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-03 04:52:10,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:52:20,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:53:03,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 04:53:13,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 04:53:23,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 04:53:33,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 04:53:43,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 04:54:01,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 04:54:16,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 04:54:20,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 04:54:51,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 04:55:01,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 04:55:11,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 04:55:21,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 04:55:31,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 04:55:37,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.90s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 04:56:47,262 WARN L293 SmtUtils]: Spent 33.26s on a formula simplification. DAG size of input: 1617 DAG size of output: 1615 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 04:59:07,250 WARN L293 SmtUtils]: Spent 12.58s on a formula simplification that was a NOOP. DAG size: 1610 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)