./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.4.prop2-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acfcbff-b19c-4c73-bd1d-0f25a0cc5565/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acfcbff-b19c-4c73-bd1d-0f25a0cc5565/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acfcbff-b19c-4c73-bd1d-0f25a0cc5565/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acfcbff-b19c-4c73-bd1d-0f25a0cc5565/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.4.prop2-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acfcbff-b19c-4c73-bd1d-0f25a0cc5565/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acfcbff-b19c-4c73-bd1d-0f25a0cc5565/bin/ukojak-verify-ENZ3QT5qd3 --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 d075c9bde33ccbcdceb96a0c69964ffaf31322f8f731139fa605ec9d8bb36b25 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-24 18:09:40,874 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 18:09:40,981 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acfcbff-b19c-4c73-bd1d-0f25a0cc5565/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-64bit-Kojak_Default.epf [2024-11-24 18:09:40,991 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 18:09:40,995 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-24 18:09:41,036 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 18:09:41,038 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 18:09:41,038 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-24 18:09:41,039 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 18:09:41,039 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 18:09:41,040 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 18:09:41,041 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 18:09:41,041 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 18:09:41,041 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 18:09:41,041 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 18:09:41,041 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 18:09:41,041 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 18:09:41,041 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 18:09:41,042 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 18:09:41,042 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 18:09:41,042 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-24 18:09:41,043 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-24 18:09:41,043 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-24 18:09:41,043 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 18:09:41,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:09:41,043 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 18:09:41,043 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 18:09:41,044 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 18:09:41,044 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-24 18:09:41,044 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 18:09:41,044 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_7acfcbff-b19c-4c73-bd1d-0f25a0cc5565/bin/ukojak-verify-ENZ3QT5qd3 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 -> d075c9bde33ccbcdceb96a0c69964ffaf31322f8f731139fa605ec9d8bb36b25 [2024-11-24 18:09:41,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 18:09:41,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 18:09:41,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 18:09:41,381 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 18:09:41,381 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 18:09:41,384 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acfcbff-b19c-4c73-bd1d-0f25a0cc5565/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.4.prop2-back-serstep.c [2024-11-24 18:09:44,423 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acfcbff-b19c-4c73-bd1d-0f25a0cc5565/bin/ukojak-verify-ENZ3QT5qd3/data/3b2585318/c87d194eb9e441b09e5d150a9aea8d18/FLAG6d4ca81a5 [2024-11-24 18:09:45,268 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 18:09:45,269 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acfcbff-b19c-4c73-bd1d-0f25a0cc5565/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.4.prop2-back-serstep.c [2024-11-24 18:09:45,327 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acfcbff-b19c-4c73-bd1d-0f25a0cc5565/bin/ukojak-verify-ENZ3QT5qd3/data/3b2585318/c87d194eb9e441b09e5d150a9aea8d18/FLAG6d4ca81a5 [2024-11-24 18:09:45,521 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acfcbff-b19c-4c73-bd1d-0f25a0cc5565/bin/ukojak-verify-ENZ3QT5qd3/data/3b2585318/c87d194eb9e441b09e5d150a9aea8d18 [2024-11-24 18:09:45,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 18:09:45,526 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 18:09:45,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 18:09:45,528 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 18:09:45,534 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 18:09:45,535 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:09:45" (1/1) ... [2024-11-24 18:09:45,536 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ae75765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:45, skipping insertion in model container [2024-11-24 18:09:45,536 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:09:45" (1/1) ... [2024-11-24 18:09:45,756 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 18:09:46,178 WARN L250 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_7acfcbff-b19c-4c73-bd1d-0f25a0cc5565/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.4.prop2-back-serstep.c[1180,1193] [2024-11-24 18:09:48,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:09:48,188 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 18:09:48,200 WARN L250 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_7acfcbff-b19c-4c73-bd1d-0f25a0cc5565/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.4.prop2-back-serstep.c[1180,1193] [2024-11-24 18:09:49,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:09:49,532 INFO L204 MainTranslator]: Completed translation [2024-11-24 18:09:49,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:49 WrapperNode [2024-11-24 18:09:49,533 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 18:09:49,535 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 18:09:49,535 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 18:09:49,535 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 18:09:49,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:49" (1/1) ... [2024-11-24 18:09:49,944 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:49" (1/1) ... [2024-11-24 18:09:54,728 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48149 [2024-11-24 18:09:54,728 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 18:09:54,729 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 18:09:54,729 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 18:09:54,729 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 18:09:54,736 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:49" (1/1) ... [2024-11-24 18:09:54,736 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:49" (1/1) ... [2024-11-24 18:09:56,276 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:49" (1/1) ... [2024-11-24 18:09:56,276 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:49" (1/1) ... [2024-11-24 18:09:57,444 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:49" (1/1) ... [2024-11-24 18:09:57,612 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:49" (1/1) ... [2024-11-24 18:09:57,755 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:49" (1/1) ... [2024-11-24 18:09:58,018 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:49" (1/1) ... [2024-11-24 18:09:58,193 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:49" (1/1) ... [2024-11-24 18:09:59,933 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 18:09:59,934 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 18:09:59,934 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 18:09:59,934 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 18:09:59,935 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:09:49" (1/1) ... [2024-11-24 18:09:59,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:09:59,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acfcbff-b19c-4c73-bd1d-0f25a0cc5565/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-24 18:09:59,974 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acfcbff-b19c-4c73-bd1d-0f25a0cc5565/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-24 18:09:59,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acfcbff-b19c-4c73-bd1d-0f25a0cc5565/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-24 18:10:00,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 18:10:00,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 18:10:00,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 18:10:00,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 18:10:02,858 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 18:10:02,861 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation