./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/locks/test_locks_8.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/locks/test_locks_8.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b7157ba450d9d62b74d19027a6860eb7210e35a76921ceb23a9c0a69add85337 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:56:00,580 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:56:00,670 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-28 03:56:00,677 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:56:00,677 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:56:00,738 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:56:00,739 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:56:00,739 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:56:00,740 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:56:00,741 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:56:00,743 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:56:00,743 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:56:00,743 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:56:00,744 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 03:56:00,744 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 03:56:00,745 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 03:56:00,745 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 03:56:00,746 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 03:56:00,746 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 03:56:00,746 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:56:00,746 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 03:56:00,746 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:56:00,747 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:56:00,747 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:56:00,747 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:56:00,747 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 03:56:00,747 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 03:56:00,747 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 03:56:00,747 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:56:00,748 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:56:00,748 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:56:00,748 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 03:56:00,748 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:56:00,748 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:56:00,748 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:56:00,748 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:56:00,748 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:56:00,749 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 03:56:00,749 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 03:56:00,749 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB 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(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7157ba450d9d62b74d19027a6860eb7210e35a76921ceb23a9c0a69add85337 [2024-11-28 03:56:01,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:56:01,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:56:01,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:56:01,182 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:56:01,184 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:56:01,187 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/locks/test_locks_8.c [2024-11-28 03:56:05,173 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/data/68643ea8f/21359199f8984d178fe67d41954178c8/FLAG78be5c191 [2024-11-28 03:56:05,611 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:56:05,612 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/sv-benchmarks/c/locks/test_locks_8.c [2024-11-28 03:56:05,623 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/data/68643ea8f/21359199f8984d178fe67d41954178c8/FLAG78be5c191 [2024-11-28 03:56:05,656 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/data/68643ea8f/21359199f8984d178fe67d41954178c8 [2024-11-28 03:56:05,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:56:05,662 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:56:05,664 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:56:05,664 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:56:05,670 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:56:05,671 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:56:05" (1/1) ... [2024-11-28 03:56:05,672 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@477c9293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:05, skipping insertion in model container [2024-11-28 03:56:05,673 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:56:05" (1/1) ... [2024-11-28 03:56:05,695 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:56:05,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:56:05,967 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:56:06,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:56:06,036 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:56:06,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06 WrapperNode [2024-11-28 03:56:06,038 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:56:06,040 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:56:06,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:56:06,041 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:56:06,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,069 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,101 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 115 [2024-11-28 03:56:06,105 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:56:06,107 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:56:06,107 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:56:06,108 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:56:06,121 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,123 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,142 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:56:06,143 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,144 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,150 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,155 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,164 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,169 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,170 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,172 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:56:06,176 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:56:06,177 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:56:06,177 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:56:06,178 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:56:06,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:56:06,240 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:56:06,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 03:56:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:56:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:56:06,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:56:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:56:06,385 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:56:06,387 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:56:06,638 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-28 03:56:06,638 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:56:06,651 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:56:06,651 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:56:06,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:56:06 BoogieIcfgContainer [2024-11-28 03:56:06,652 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:56:06,653 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 03:56:06,653 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 03:56:06,662 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 03:56:06,663 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 03:56:06,663 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:56:05" (1/3) ... [2024-11-28 03:56:06,665 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3884fd8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:56:06, skipping insertion in model container [2024-11-28 03:56:06,665 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 03:56:06,665 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (2/3) ... [2024-11-28 03:56:06,666 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3884fd8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:56:06, skipping insertion in model container [2024-11-28 03:56:06,666 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 03:56:06,666 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:56:06" (3/3) ... [2024-11-28 03:56:06,668 INFO L363 chiAutomizerObserver]: Analyzing ICFG test_locks_8.c [2024-11-28 03:56:06,742 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 03:56:06,742 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 03:56:06,742 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 03:56:06,743 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 03:56:06,743 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 03:56:06,743 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 03:56:06,743 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 03:56:06,743 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 03:56:06,753 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 34 states, 33 states have (on average 1.8181818181818181) internal successors, (60), 33 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:06,780 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 26 [2024-11-28 03:56:06,780 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:56:06,781 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:56:06,787 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 03:56:06,788 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:06,788 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 03:56:06,788 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 34 states, 33 states have (on average 1.8181818181818181) internal successors, (60), 33 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:06,792 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 26 [2024-11-28 03:56:06,792 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:56:06,792 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:56:06,793 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 03:56:06,793 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:06,803 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_#t~nondet11#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;havoc main_~cond~0#1;" [2024-11-28 03:56:06,804 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet12#1;main_~cond~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;" "assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;" "assume 0 != main_~p1~0#1;main_~lk1~0#1 := 1;" "assume 0 != main_~p2~0#1;main_~lk2~0#1 := 1;" "assume !(0 != main_~p3~0#1);" "assume 0 != main_~p4~0#1;main_~lk4~0#1 := 1;" "assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1;" "assume 0 != main_~p6~0#1;main_~lk6~0#1 := 1;" "assume 0 != main_~p7~0#1;main_~lk7~0#1 := 1;" "assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" [2024-11-28 03:56:06,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:06,811 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-28 03:56:06,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:56:06,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193329809] [2024-11-28 03:56:06,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:06,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:56:06,918 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:56:06,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:56:06,948 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:56:06,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:06,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1098697512, now seen corresponding path program 1 times [2024-11-28 03:56:06,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:56:06,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97078325] [2024-11-28 03:56:06,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:06,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:06,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:07,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 03:56:07,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97078325] [2024-11-28 03:56:07,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97078325] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:56:07,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238984015] [2024-11-28 03:56:07,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:07,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:56:07,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:56:07,158 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:56:07,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:56:07,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:07,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:56:07,253 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:56:07,293 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:56:07,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238984015] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:56:07,333 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:56:07,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-28 03:56:07,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109939963] [2024-11-28 03:56:07,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:56:07,341 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 03:56:07,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 03:56:07,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:56:07,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:56:07,382 INFO L87 Difference]: Start difference. First operand has 34 states, 33 states have (on average 1.8181818181818181) internal successors, (60), 33 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:07,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:07,454 INFO L93 Difference]: Finished difference Result 61 states and 105 transitions. [2024-11-28 03:56:07,459 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 105 transitions. [2024-11-28 03:56:07,462 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2024-11-28 03:56:07,476 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 53 states and 83 transitions. [2024-11-28 03:56:07,479 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2024-11-28 03:56:07,480 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2024-11-28 03:56:07,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 83 transitions. [2024-11-28 03:56:07,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 03:56:07,485 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53 states and 83 transitions. [2024-11-28 03:56:07,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 83 transitions. [2024-11-28 03:56:07,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-11-28 03:56:07,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 53 states have (on average 1.5660377358490567) internal successors, (83), 52 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:07,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 83 transitions. [2024-11-28 03:56:07,533 INFO L240 hiAutomatonCegarLoop]: Abstraction has 53 states and 83 transitions. [2024-11-28 03:56:07,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:56:07,542 INFO L425 stractBuchiCegarLoop]: Abstraction has 53 states and 83 transitions. [2024-11-28 03:56:07,544 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-28 03:56:07,545 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 83 transitions. [2024-11-28 03:56:07,550 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2024-11-28 03:56:07,550 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:56:07,550 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:56:07,551 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 03:56:07,551 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:07,551 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_#t~nondet11#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;havoc main_~cond~0#1;" [2024-11-28 03:56:07,551 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet12#1;main_~cond~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;" "assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;" "assume !(0 != main_~p1~0#1);" "assume 0 != main_~p2~0#1;main_~lk2~0#1 := 1;" "assume !(0 != main_~p3~0#1);" "assume 0 != main_~p4~0#1;main_~lk4~0#1 := 1;" "assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1;" "assume 0 != main_~p6~0#1;main_~lk6~0#1 := 1;" "assume 0 != main_~p7~0#1;main_~lk7~0#1 := 1;" "assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" [2024-11-28 03:56:07,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:07,552 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-11-28 03:56:07,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:56:07,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696648059] [2024-11-28 03:56:07,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:07,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:07,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:56:07,576 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:56:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:56:07,591 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:56:07,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:07,591 INFO L85 PathProgramCache]: Analyzing trace with hash 77629158, now seen corresponding path program 1 times [2024-11-28 03:56:07,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:56:07,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34606252] [2024-11-28 03:56:07,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:07,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:07,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:07,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 03:56:07,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34606252] [2024-11-28 03:56:07,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34606252] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:56:07,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159774312] [2024-11-28 03:56:07,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:07,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:56:07,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:56:07,657 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:56:07,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:56:07,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:07,741 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:56:07,742 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:56:07,789 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:56:07,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159774312] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:56:07,851 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:56:07,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-28 03:56:07,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764064876] [2024-11-28 03:56:07,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:56:07,853 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 03:56:07,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 03:56:07,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:56:07,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:56:07,855 INFO L87 Difference]: Start difference. First operand 53 states and 83 transitions. cyclomatic complexity: 32 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:07,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:07,895 INFO L93 Difference]: Finished difference Result 102 states and 158 transitions. [2024-11-28 03:56:07,895 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 158 transitions. [2024-11-28 03:56:07,898 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 100 [2024-11-28 03:56:07,901 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 102 states and 158 transitions. [2024-11-28 03:56:07,902 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 102 [2024-11-28 03:56:07,902 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 102 [2024-11-28 03:56:07,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 102 states and 158 transitions. [2024-11-28 03:56:07,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 03:56:07,903 INFO L218 hiAutomatonCegarLoop]: Abstraction has 102 states and 158 transitions. [2024-11-28 03:56:07,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states and 158 transitions. [2024-11-28 03:56:07,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-11-28 03:56:07,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 102 states have (on average 1.5490196078431373) internal successors, (158), 101 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:07,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 158 transitions. [2024-11-28 03:56:07,914 INFO L240 hiAutomatonCegarLoop]: Abstraction has 102 states and 158 transitions. [2024-11-28 03:56:07,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:56:07,916 INFO L425 stractBuchiCegarLoop]: Abstraction has 102 states and 158 transitions. [2024-11-28 03:56:07,916 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-28 03:56:07,916 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 102 states and 158 transitions. [2024-11-28 03:56:07,918 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 100 [2024-11-28 03:56:07,918 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:56:07,918 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:56:07,919 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 03:56:07,919 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:07,920 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_#t~nondet11#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;havoc main_~cond~0#1;" [2024-11-28 03:56:07,920 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet12#1;main_~cond~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;" "assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume 0 != main_~p4~0#1;main_~lk4~0#1 := 1;" "assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1;" "assume 0 != main_~p6~0#1;main_~lk6~0#1 := 1;" "assume 0 != main_~p7~0#1;main_~lk7~0#1 := 1;" "assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" [2024-11-28 03:56:07,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:07,921 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2024-11-28 03:56:07,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:56:07,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328935830] [2024-11-28 03:56:07,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:07,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:07,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:56:07,929 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:56:07,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:56:07,936 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:56:07,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:07,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1202234520, now seen corresponding path program 1 times [2024-11-28 03:56:07,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:56:07,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169264001] [2024-11-28 03:56:07,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:07,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:08,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 03:56:08,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169264001] [2024-11-28 03:56:08,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169264001] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:56:08,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177895748] [2024-11-28 03:56:08,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:08,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:56:08,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:56:08,051 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:56:08,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:56:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:08,126 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:56:08,127 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:56:08,171 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:56:08,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177895748] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:56:08,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:56:08,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-28 03:56:08,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662947054] [2024-11-28 03:56:08,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:56:08,246 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 03:56:08,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 03:56:08,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:56:08,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:56:08,247 INFO L87 Difference]: Start difference. First operand 102 states and 158 transitions. cyclomatic complexity: 60 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:08,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:08,283 INFO L93 Difference]: Finished difference Result 198 states and 302 transitions. [2024-11-28 03:56:08,283 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 198 states and 302 transitions. [2024-11-28 03:56:08,289 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 196 [2024-11-28 03:56:08,296 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 198 states to 198 states and 302 transitions. [2024-11-28 03:56:08,296 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 198 [2024-11-28 03:56:08,297 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 198 [2024-11-28 03:56:08,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 198 states and 302 transitions. [2024-11-28 03:56:08,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 03:56:08,298 INFO L218 hiAutomatonCegarLoop]: Abstraction has 198 states and 302 transitions. [2024-11-28 03:56:08,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states and 302 transitions. [2024-11-28 03:56:08,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2024-11-28 03:56:08,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 198 states have (on average 1.5252525252525253) internal successors, (302), 197 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:08,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 302 transitions. [2024-11-28 03:56:08,329 INFO L240 hiAutomatonCegarLoop]: Abstraction has 198 states and 302 transitions. [2024-11-28 03:56:08,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:56:08,335 INFO L425 stractBuchiCegarLoop]: Abstraction has 198 states and 302 transitions. [2024-11-28 03:56:08,335 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-28 03:56:08,335 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 198 states and 302 transitions. [2024-11-28 03:56:08,337 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 196 [2024-11-28 03:56:08,338 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:56:08,342 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:56:08,342 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 03:56:08,342 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:08,343 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_#t~nondet11#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;havoc main_~cond~0#1;" [2024-11-28 03:56:08,343 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet12#1;main_~cond~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;" "assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1;" "assume 0 != main_~p6~0#1;main_~lk6~0#1 := 1;" "assume 0 != main_~p7~0#1;main_~lk7~0#1 := 1;" "assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" [2024-11-28 03:56:08,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:08,343 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2024-11-28 03:56:08,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:56:08,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983014288] [2024-11-28 03:56:08,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:08,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:08,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:56:08,357 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:56:08,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:56:08,368 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:56:08,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:08,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1789040534, now seen corresponding path program 1 times [2024-11-28 03:56:08,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:56:08,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922761923] [2024-11-28 03:56:08,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:08,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:08,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:08,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 03:56:08,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922761923] [2024-11-28 03:56:08,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922761923] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:56:08,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519471130] [2024-11-28 03:56:08,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:08,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:56:08,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:56:08,424 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:56:08,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:56:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:08,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:56:08,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:56:08,528 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:56:08,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519471130] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:56:08,576 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:56:08,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-28 03:56:08,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386830218] [2024-11-28 03:56:08,577 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:56:08,577 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 03:56:08,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 03:56:08,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:56:08,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:56:08,582 INFO L87 Difference]: Start difference. First operand 198 states and 302 transitions. cyclomatic complexity: 112 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:08,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:08,620 INFO L93 Difference]: Finished difference Result 386 states and 578 transitions. [2024-11-28 03:56:08,620 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 386 states and 578 transitions. [2024-11-28 03:56:08,627 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 384 [2024-11-28 03:56:08,635 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 386 states to 386 states and 578 transitions. [2024-11-28 03:56:08,638 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 386 [2024-11-28 03:56:08,639 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 386 [2024-11-28 03:56:08,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 386 states and 578 transitions. [2024-11-28 03:56:08,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 03:56:08,645 INFO L218 hiAutomatonCegarLoop]: Abstraction has 386 states and 578 transitions. [2024-11-28 03:56:08,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states and 578 transitions. [2024-11-28 03:56:08,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2024-11-28 03:56:08,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 386 states have (on average 1.4974093264248705) internal successors, (578), 385 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:08,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 578 transitions. [2024-11-28 03:56:08,679 INFO L240 hiAutomatonCegarLoop]: Abstraction has 386 states and 578 transitions. [2024-11-28 03:56:08,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:56:08,682 INFO L425 stractBuchiCegarLoop]: Abstraction has 386 states and 578 transitions. [2024-11-28 03:56:08,682 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-28 03:56:08,682 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 386 states and 578 transitions. [2024-11-28 03:56:08,690 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 384 [2024-11-28 03:56:08,690 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:56:08,691 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:56:08,691 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 03:56:08,691 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:08,692 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_#t~nondet11#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;havoc main_~cond~0#1;" [2024-11-28 03:56:08,692 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet12#1;main_~cond~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;" "assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume 0 != main_~p6~0#1;main_~lk6~0#1 := 1;" "assume 0 != main_~p7~0#1;main_~lk7~0#1 := 1;" "assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" [2024-11-28 03:56:08,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:08,692 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2024-11-28 03:56:08,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:56:08,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37230687] [2024-11-28 03:56:08,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:08,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:08,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:56:08,709 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:56:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:56:08,725 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:56:08,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:08,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1530875096, now seen corresponding path program 1 times [2024-11-28 03:56:08,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:56:08,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364871868] [2024-11-28 03:56:08,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:08,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:08,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:08,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 03:56:08,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364871868] [2024-11-28 03:56:08,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364871868] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:56:08,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986715131] [2024-11-28 03:56:08,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:08,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:56:08,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:56:08,795 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:56:08,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:56:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:08,868 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:56:08,870 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:56:08,904 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:56:08,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986715131] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:56:08,931 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:56:08,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-28 03:56:08,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428491950] [2024-11-28 03:56:08,932 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:56:08,932 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 03:56:08,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 03:56:08,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:56:08,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:56:08,935 INFO L87 Difference]: Start difference. First operand 386 states and 578 transitions. cyclomatic complexity: 208 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:08,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:08,974 INFO L93 Difference]: Finished difference Result 754 states and 1106 transitions. [2024-11-28 03:56:08,974 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 754 states and 1106 transitions. [2024-11-28 03:56:08,990 INFO L131 ngComponentsAnalysis]: Automaton has 32 accepting balls. 752 [2024-11-28 03:56:08,999 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 754 states to 754 states and 1106 transitions. [2024-11-28 03:56:08,999 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 754 [2024-11-28 03:56:09,001 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 754 [2024-11-28 03:56:09,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 754 states and 1106 transitions. [2024-11-28 03:56:09,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 03:56:09,008 INFO L218 hiAutomatonCegarLoop]: Abstraction has 754 states and 1106 transitions. [2024-11-28 03:56:09,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states and 1106 transitions. [2024-11-28 03:56:09,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2024-11-28 03:56:09,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 754 states have (on average 1.46684350132626) internal successors, (1106), 753 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:09,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1106 transitions. [2024-11-28 03:56:09,076 INFO L240 hiAutomatonCegarLoop]: Abstraction has 754 states and 1106 transitions. [2024-11-28 03:56:09,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:56:09,078 INFO L425 stractBuchiCegarLoop]: Abstraction has 754 states and 1106 transitions. [2024-11-28 03:56:09,078 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-28 03:56:09,078 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 754 states and 1106 transitions. [2024-11-28 03:56:09,091 INFO L131 ngComponentsAnalysis]: Automaton has 32 accepting balls. 752 [2024-11-28 03:56:09,091 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:56:09,091 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:56:09,091 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 03:56:09,091 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:09,094 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_#t~nondet11#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;havoc main_~cond~0#1;" [2024-11-28 03:56:09,098 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet12#1;main_~cond~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;" "assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume 0 != main_~p7~0#1;main_~lk7~0#1 := 1;" "assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" [2024-11-28 03:56:09,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:09,098 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 6 times [2024-11-28 03:56:09,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:56:09,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875935290] [2024-11-28 03:56:09,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:09,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:56:09,109 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:56:09,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:56:09,119 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:56:09,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:09,119 INFO L85 PathProgramCache]: Analyzing trace with hash -829810518, now seen corresponding path program 1 times [2024-11-28 03:56:09,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:56:09,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312683134] [2024-11-28 03:56:09,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:09,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:09,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:09,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 03:56:09,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312683134] [2024-11-28 03:56:09,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312683134] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:56:09,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851564841] [2024-11-28 03:56:09,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:09,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:56:09,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:56:09,197 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:56:09,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:56:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:09,258 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:56:09,259 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:56:09,288 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:56:09,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851564841] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:56:09,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:56:09,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-28 03:56:09,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088203813] [2024-11-28 03:56:09,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:56:09,330 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 03:56:09,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 03:56:09,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:56:09,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:56:09,331 INFO L87 Difference]: Start difference. First operand 754 states and 1106 transitions. cyclomatic complexity: 384 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:09,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:09,374 INFO L93 Difference]: Finished difference Result 1474 states and 2114 transitions. [2024-11-28 03:56:09,374 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1474 states and 2114 transitions. [2024-11-28 03:56:09,399 INFO L131 ngComponentsAnalysis]: Automaton has 64 accepting balls. 1472 [2024-11-28 03:56:09,413 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1474 states to 1474 states and 2114 transitions. [2024-11-28 03:56:09,413 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1474 [2024-11-28 03:56:09,416 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1474 [2024-11-28 03:56:09,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1474 states and 2114 transitions. [2024-11-28 03:56:09,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 03:56:09,422 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1474 states and 2114 transitions. [2024-11-28 03:56:09,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states and 2114 transitions. [2024-11-28 03:56:09,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2024-11-28 03:56:09,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1474 states, 1474 states have (on average 1.4341926729986432) internal successors, (2114), 1473 states have internal predecessors, (2114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:09,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2114 transitions. [2024-11-28 03:56:09,477 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1474 states and 2114 transitions. [2024-11-28 03:56:09,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:56:09,482 INFO L425 stractBuchiCegarLoop]: Abstraction has 1474 states and 2114 transitions. [2024-11-28 03:56:09,482 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-28 03:56:09,482 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1474 states and 2114 transitions. [2024-11-28 03:56:09,494 INFO L131 ngComponentsAnalysis]: Automaton has 64 accepting balls. 1472 [2024-11-28 03:56:09,494 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:56:09,494 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:56:09,495 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 03:56:09,495 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:09,495 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_#t~nondet11#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;havoc main_~cond~0#1;" [2024-11-28 03:56:09,495 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet12#1;main_~cond~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;" "assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" [2024-11-28 03:56:09,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:09,496 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 7 times [2024-11-28 03:56:09,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:56:09,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087202182] [2024-11-28 03:56:09,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:09,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:56:09,502 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:56:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:56:09,512 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:56:09,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:09,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1222837528, now seen corresponding path program 1 times [2024-11-28 03:56:09,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:56:09,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047884702] [2024-11-28 03:56:09,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:09,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:09,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:09,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 03:56:09,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047884702] [2024-11-28 03:56:09,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047884702] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:56:09,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392666298] [2024-11-28 03:56:09,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:09,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:56:09,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:56:09,553 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:56:09,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:56:09,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:09,612 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:56:09,613 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:56:09,637 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:56:09,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392666298] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:56:09,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:56:09,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-28 03:56:09,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554165089] [2024-11-28 03:56:09,666 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:56:09,667 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 03:56:09,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 03:56:09,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:56:09,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:56:09,668 INFO L87 Difference]: Start difference. First operand 1474 states and 2114 transitions. cyclomatic complexity: 704 Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:09,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:09,714 INFO L93 Difference]: Finished difference Result 2882 states and 4034 transitions. [2024-11-28 03:56:09,714 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2882 states and 4034 transitions. [2024-11-28 03:56:09,747 INFO L131 ngComponentsAnalysis]: Automaton has 128 accepting balls. 2880 [2024-11-28 03:56:09,771 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2882 states to 2882 states and 4034 transitions. [2024-11-28 03:56:09,771 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2882 [2024-11-28 03:56:09,775 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2882 [2024-11-28 03:56:09,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2882 states and 4034 transitions. [2024-11-28 03:56:09,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 03:56:09,826 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2882 states and 4034 transitions. [2024-11-28 03:56:09,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2882 states and 4034 transitions. [2024-11-28 03:56:09,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2882 to 2882. [2024-11-28 03:56:09,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2882 states, 2882 states have (on average 1.3997224149895906) internal successors, (4034), 2881 states have internal predecessors, (4034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:09,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2882 states to 2882 states and 4034 transitions. [2024-11-28 03:56:09,916 INFO L240 hiAutomatonCegarLoop]: Abstraction has 2882 states and 4034 transitions. [2024-11-28 03:56:09,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:56:09,918 INFO L425 stractBuchiCegarLoop]: Abstraction has 2882 states and 4034 transitions. [2024-11-28 03:56:09,918 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-28 03:56:09,918 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2882 states and 4034 transitions. [2024-11-28 03:56:09,939 INFO L131 ngComponentsAnalysis]: Automaton has 128 accepting balls. 2880 [2024-11-28 03:56:09,940 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:56:09,940 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:56:09,940 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 03:56:09,940 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:09,940 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_#t~nondet11#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;havoc main_~cond~0#1;" [2024-11-28 03:56:09,940 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet12#1;main_~cond~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;" "assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" [2024-11-28 03:56:09,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:09,941 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 8 times [2024-11-28 03:56:09,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:56:09,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643144781] [2024-11-28 03:56:09,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:09,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:56:09,948 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:56:09,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:56:09,958 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:56:09,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:09,958 INFO L85 PathProgramCache]: Analyzing trace with hash -542779158, now seen corresponding path program 1 times [2024-11-28 03:56:09,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:56:09,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474589440] [2024-11-28 03:56:09,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:09,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:56:09,968 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:56:09,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:56:09,980 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:56:09,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:09,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1175900116, now seen corresponding path program 1 times [2024-11-28 03:56:09,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:56:09,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726027017] [2024-11-28 03:56:09,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:09,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:09,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:56:09,992 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:56:10,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:56:10,008 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:56:10,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:56:10,538 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:56:10,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:56:10,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:56:10 BoogieIcfgContainer [2024-11-28 03:56:10,588 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 03:56:10,589 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:56:10,589 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:56:10,589 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:56:10,593 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:56:06" (3/4) ... [2024-11-28 03:56:10,598 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-28 03:56:10,659 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:56:10,659 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:56:10,661 INFO L158 Benchmark]: Toolchain (without parser) took 4998.99ms. Allocated memory is still 167.8MB. Free memory was 128.3MB in the beginning and 68.7MB in the end (delta: 59.6MB). Peak memory consumption was 60.0MB. Max. memory is 16.1GB. [2024-11-28 03:56:10,662 INFO L158 Benchmark]: CDTParser took 0.61ms. Allocated memory is still 167.8MB. Free memory is still 104.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:56:10,662 INFO L158 Benchmark]: CACSL2BoogieTranslator took 374.97ms. Allocated memory is still 167.8MB. Free memory was 128.3MB in the beginning and 117.2MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:56:10,662 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.17ms. Allocated memory is still 167.8MB. Free memory was 116.9MB in the beginning and 115.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:56:10,663 INFO L158 Benchmark]: Boogie Preprocessor took 68.50ms. Allocated memory is still 167.8MB. Free memory was 115.8MB in the beginning and 114.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:56:10,663 INFO L158 Benchmark]: RCFGBuilder took 475.47ms. Allocated memory is still 167.8MB. Free memory was 114.4MB in the beginning and 101.9MB in the end (delta: 12.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:56:10,665 INFO L158 Benchmark]: BuchiAutomizer took 3934.84ms. Allocated memory is still 167.8MB. Free memory was 101.9MB in the beginning and 71.3MB in the end (delta: 30.6MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2024-11-28 03:56:10,666 INFO L158 Benchmark]: Witness Printer took 70.90ms. Allocated memory is still 167.8MB. Free memory was 71.3MB in the beginning and 68.7MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:56:10,668 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61ms. Allocated memory is still 167.8MB. Free memory is still 104.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 374.97ms. Allocated memory is still 167.8MB. Free memory was 128.3MB in the beginning and 117.2MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.17ms. Allocated memory is still 167.8MB. Free memory was 116.9MB in the beginning and 115.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 68.50ms. Allocated memory is still 167.8MB. Free memory was 115.8MB in the beginning and 114.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 475.47ms. Allocated memory is still 167.8MB. Free memory was 114.4MB in the beginning and 101.9MB in the end (delta: 12.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3934.84ms. Allocated memory is still 167.8MB. Free memory was 101.9MB in the beginning and 71.3MB in the end (delta: 30.6MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. * Witness Printer took 70.90ms. Allocated memory is still 167.8MB. Free memory was 71.3MB in the beginning and 68.7MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (7 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.7 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 2882 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 8 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 0. Minimization of det autom 7. Minimization of nondet autom 0. Automata minimization 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 234 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 234 mSDsluCounter, 734 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 276 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 458 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI7 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 35]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L33] int cond; Loop: [L36] cond = __VERIFIER_nondet_int() [L37] COND FALSE !(cond == 0) [L40] lk1 = 0 [L42] lk2 = 0 [L44] lk3 = 0 [L46] lk4 = 0 [L48] lk5 = 0 [L50] lk6 = 0 [L52] lk7 = 0 [L54] lk8 = 0 [L58] COND FALSE !(p1 != 0) [L62] COND FALSE !(p2 != 0) [L66] COND FALSE !(p3 != 0) [L70] COND FALSE !(p4 != 0) [L74] COND FALSE !(p5 != 0) [L78] COND FALSE !(p6 != 0) [L82] COND FALSE !(p7 != 0) [L86] COND FALSE !(p8 != 0) [L92] COND FALSE !(p1 != 0) [L97] COND FALSE !(p2 != 0) [L102] COND FALSE !(p3 != 0) [L107] COND FALSE !(p4 != 0) [L112] COND FALSE !(p5 != 0) [L117] COND FALSE !(p6 != 0) [L122] COND FALSE !(p7 != 0) [L127] COND FALSE !(p8 != 0) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 35]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L33] int cond; Loop: [L36] cond = __VERIFIER_nondet_int() [L37] COND FALSE !(cond == 0) [L40] lk1 = 0 [L42] lk2 = 0 [L44] lk3 = 0 [L46] lk4 = 0 [L48] lk5 = 0 [L50] lk6 = 0 [L52] lk7 = 0 [L54] lk8 = 0 [L58] COND FALSE !(p1 != 0) [L62] COND FALSE !(p2 != 0) [L66] COND FALSE !(p3 != 0) [L70] COND FALSE !(p4 != 0) [L74] COND FALSE !(p5 != 0) [L78] COND FALSE !(p6 != 0) [L82] COND FALSE !(p7 != 0) [L86] COND FALSE !(p8 != 0) [L92] COND FALSE !(p1 != 0) [L97] COND FALSE !(p2 != 0) [L102] COND FALSE !(p3 != 0) [L107] COND FALSE !(p4 != 0) [L112] COND FALSE !(p5 != 0) [L117] COND FALSE !(p6 != 0) [L122] COND FALSE !(p7 != 0) [L127] COND FALSE !(p8 != 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-28 03:56:10,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 03:56:10,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 03:56:11,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 03:56:11,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:56:11,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:56:11,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:56:11,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:56:12,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adae2ab-c30f-4b35-b0f2-2a3d2059638e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)