./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.toy_lock_4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.toy_lock_4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 109ee6fb23cd6e30d14aec37d73eede06aedf81ad0f99da544662d8756597166 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:35:22,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:35:22,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:35:22,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:35:22,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:35:22,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:35:22,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:35:22,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:35:22,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:35:22,106 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:35:22,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:35:22,110 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:35:22,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:35:22,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:35:22,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:35:22,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:35:22,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:35:22,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:35:22,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:35:22,129 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:35:22,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:35:22,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:35:22,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:35:22,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:35:22,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:35:22,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:35:22,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:35:22,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:35:22,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:35:22,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:35:22,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:35:22,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:35:22,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:35:22,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:35:22,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:35:22,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:35:22,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:35:22,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:35:22,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:35:22,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:35:22,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:35:22,159 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 12:35:22,199 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:35:22,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:35:22,200 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:35:22,200 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:35:22,201 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:35:22,201 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:35:22,201 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:35:22,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:35:22,202 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:35:22,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:35:22,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:35:22,207 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:35:22,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:35:22,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:35:22,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:35:22,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:35:22,207 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:35:22,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:35:22,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:35:22,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:35:22,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:35:22,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:35:22,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:35:22,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:35:22,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:35:22,209 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:35:22,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:35:22,211 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:35:22,211 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:35:22,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:35:22,212 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 109ee6fb23cd6e30d14aec37d73eede06aedf81ad0f99da544662d8756597166 [2022-11-16 12:35:22,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:35:22,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:35:22,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:35:22,593 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:35:22,596 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:35:22,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.toy_lock_4.c [2022-11-16 12:35:22,681 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/data/bc1d98ddd/2c835a737fbf4f7185a98265fdc7ab71/FLAG387b3f847 [2022-11-16 12:35:23,336 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:35:23,336 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.toy_lock_4.c [2022-11-16 12:35:23,357 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/data/bc1d98ddd/2c835a737fbf4f7185a98265fdc7ab71/FLAG387b3f847 [2022-11-16 12:35:23,631 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/data/bc1d98ddd/2c835a737fbf4f7185a98265fdc7ab71 [2022-11-16 12:35:23,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:35:23,640 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:35:23,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:35:23,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:35:23,652 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:35:23,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:35:23" (1/1) ... [2022-11-16 12:35:23,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@773c519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:23, skipping insertion in model container [2022-11-16 12:35:23,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:35:23" (1/1) ... [2022-11-16 12:35:23,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:35:23,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:35:23,969 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.toy_lock_4.c[1107,1120] [2022-11-16 12:35:24,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:35:24,187 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:35:24,198 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.toy_lock_4.c[1107,1120] [2022-11-16 12:35:24,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:35:24,299 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:35:24,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:24 WrapperNode [2022-11-16 12:35:24,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:35:24,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:35:24,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:35:24,316 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:35:24,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:24" (1/1) ... [2022-11-16 12:35:24,368 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:24" (1/1) ... [2022-11-16 12:35:24,482 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1088 [2022-11-16 12:35:24,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:35:24,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:35:24,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:35:24,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:35:24,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:24" (1/1) ... [2022-11-16 12:35:24,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:24" (1/1) ... [2022-11-16 12:35:24,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:24" (1/1) ... [2022-11-16 12:35:24,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:24" (1/1) ... [2022-11-16 12:35:24,560 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:24" (1/1) ... [2022-11-16 12:35:24,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:24" (1/1) ... [2022-11-16 12:35:24,573 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:24" (1/1) ... [2022-11-16 12:35:24,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:24" (1/1) ... [2022-11-16 12:35:24,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:35:24,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:35:24,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:35:24,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:35:24,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:24" (1/1) ... [2022-11-16 12:35:24,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:35:24,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:35:24,688 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:35:24,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:35:24,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:35:24,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:35:25,111 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:35:25,113 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:35:27,493 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:35:27,502 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:35:27,502 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:35:27,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:35:27 BoogieIcfgContainer [2022-11-16 12:35:27,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:35:27,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:35:27,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:35:27,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:35:27,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:35:23" (1/3) ... [2022-11-16 12:35:27,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75265f65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:35:27, skipping insertion in model container [2022-11-16 12:35:27,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:24" (2/3) ... [2022-11-16 12:35:27,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75265f65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:35:27, skipping insertion in model container [2022-11-16 12:35:27,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:35:27" (3/3) ... [2022-11-16 12:35:27,517 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.toy_lock_4.c [2022-11-16 12:35:27,537 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:35:27,537 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:35:27,608 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:35:27,615 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@339f8387, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:35:27,616 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:35:27,623 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 102 states have (on average 1.6470588235294117) internal successors, (168), 103 states have internal predecessors, (168), 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) [2022-11-16 12:35:27,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 12:35:27,633 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:35:27,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:35:27,635 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:35:27,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:27,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1894338280, now seen corresponding path program 1 times [2022-11-16 12:35:27,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:27,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431862518] [2022-11-16 12:35:27,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:27,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:27,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:28,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:28,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:35:28,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431862518] [2022-11-16 12:35:28,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431862518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:35:28,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:35:28,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:35:28,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610204506] [2022-11-16 12:35:28,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:35:28,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:35:28,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:35:28,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:35:28,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:35:28,573 INFO L87 Difference]: Start difference. First operand has 104 states, 102 states have (on average 1.6470588235294117) internal successors, (168), 103 states have internal predecessors, (168), 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 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-11-16 12:35:28,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:35:28,839 INFO L93 Difference]: Finished difference Result 319 states and 527 transitions. [2022-11-16 12:35:28,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:35:28,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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) Word has length 19 [2022-11-16 12:35:28,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:35:28,853 INFO L225 Difference]: With dead ends: 319 [2022-11-16 12:35:28,856 INFO L226 Difference]: Without dead ends: 217 [2022-11-16 12:35:28,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:35:28,864 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 462 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:35:28,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 418 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:35:28,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-11-16 12:35:28,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 102. [2022-11-16 12:35:28,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 1.6237623762376239) internal successors, (164), 101 states have internal predecessors, (164), 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) [2022-11-16 12:35:28,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 164 transitions. [2022-11-16 12:35:28,923 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 164 transitions. Word has length 19 [2022-11-16 12:35:28,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:35:28,924 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 164 transitions. [2022-11-16 12:35:28,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-11-16 12:35:28,924 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 164 transitions. [2022-11-16 12:35:28,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 12:35:28,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:35:28,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:35:28,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:35:28,926 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:35:28,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:28,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1403330432, now seen corresponding path program 1 times [2022-11-16 12:35:28,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:28,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988274410] [2022-11-16 12:35:28,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:28,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:35:29,427 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:35:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:35:29,781 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:35:29,782 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:35:29,784 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 12:35:29,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:35:29,788 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-16 12:35:29,791 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:35:29,856 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-16 12:35:29,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:35:29 BoogieIcfgContainer [2022-11-16 12:35:29,885 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:35:29,886 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:35:29,887 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:35:29,887 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:35:29,887 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:35:27" (3/4) ... [2022-11-16 12:35:29,891 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:35:29,891 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:35:29,892 INFO L158 Benchmark]: Toolchain (without parser) took 6252.06ms. Allocated memory was 107.0MB in the beginning and 180.4MB in the end (delta: 73.4MB). Free memory was 64.7MB in the beginning and 105.2MB in the end (delta: -40.4MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2022-11-16 12:35:29,893 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory was 83.2MB in the beginning and 83.1MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:35:29,899 INFO L158 Benchmark]: CACSL2BoogieTranslator took 668.00ms. Allocated memory is still 107.0MB. Free memory was 64.6MB in the beginning and 59.3MB in the end (delta: 5.3MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2022-11-16 12:35:29,900 INFO L158 Benchmark]: Boogie Procedure Inliner took 166.96ms. Allocated memory is still 107.0MB. Free memory was 59.3MB in the beginning and 50.2MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:35:29,900 INFO L158 Benchmark]: Boogie Preprocessor took 120.58ms. Allocated memory is still 107.0MB. Free memory was 50.2MB in the beginning and 45.4MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:35:29,901 INFO L158 Benchmark]: RCFGBuilder took 2900.73ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 45.4MB in the beginning and 57.8MB in the end (delta: -12.4MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2022-11-16 12:35:29,902 INFO L158 Benchmark]: TraceAbstraction took 2378.34ms. Allocated memory was 130.0MB in the beginning and 180.4MB in the end (delta: 50.3MB). Free memory was 57.0MB in the beginning and 106.2MB in the end (delta: -49.2MB). Peak memory consumption was 64.5MB. Max. memory is 16.1GB. [2022-11-16 12:35:29,905 INFO L158 Benchmark]: Witness Printer took 4.70ms. Allocated memory is still 180.4MB. Free memory was 106.2MB in the beginning and 105.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:35:29,910 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory was 83.2MB in the beginning and 83.1MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 668.00ms. Allocated memory is still 107.0MB. Free memory was 64.6MB in the beginning and 59.3MB in the end (delta: 5.3MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 166.96ms. Allocated memory is still 107.0MB. Free memory was 59.3MB in the beginning and 50.2MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 120.58ms. Allocated memory is still 107.0MB. Free memory was 50.2MB in the beginning and 45.4MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2900.73ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 45.4MB in the beginning and 57.8MB in the end (delta: -12.4MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2378.34ms. Allocated memory was 130.0MB in the beginning and 180.4MB in the end (delta: 50.3MB). Free memory was 57.0MB in the beginning and 106.2MB in the end (delta: -49.2MB). Peak memory consumption was 64.5MB. Max. memory is 16.1GB. * Witness Printer took 4.70ms. Allocated memory is still 180.4MB. Free memory was 106.2MB in the beginning and 105.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 187, overapproximation of bitwiseOr at line 125, overapproximation of bitwiseAnd at line 137. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 8); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (8 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 2); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (2 - 1); [L31] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 1); [L32] const SORT_5 msb_SORT_5 = (SORT_5)1 << (1 - 1); [L34] const SORT_1 var_11 = 0; [L35] const SORT_5 var_45 = 1; [L36] const SORT_1 var_49 = 1; [L37] const SORT_5 var_60 = 0; [L38] const SORT_3 var_81 = 0; [L39] const SORT_3 var_90 = 1; [L40] const SORT_3 var_99 = 2; [L41] const SORT_3 var_108 = 3; [L43] SORT_1 input_2; [L44] SORT_3 input_4; [L45] SORT_5 input_6; [L46] SORT_1 input_7; [L47] SORT_3 input_8; [L48] SORT_3 input_9; [L49] SORT_5 input_10; [L51] SORT_1 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L52] SORT_1 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L53] SORT_1 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L54] SORT_1 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L55] SORT_1 state_50 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L56] SORT_1 state_52 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L57] SORT_1 state_54 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L58] SORT_1 state_56 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L59] SORT_5 state_58 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L60] SORT_5 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L61] SORT_5 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L62] SORT_5 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L63] SORT_1 state_68 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L64] SORT_1 state_70 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L65] SORT_1 state_72 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L66] SORT_1 state_74 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L68] SORT_1 init_13_arg_1 = var_11; [L69] state_12 = init_13_arg_1 [L70] SORT_1 init_16_arg_1 = var_11; [L71] state_15 = init_16_arg_1 [L72] SORT_1 init_21_arg_1 = var_11; [L73] state_20 = init_21_arg_1 [L74] SORT_1 init_27_arg_1 = var_11; [L75] state_26 = init_27_arg_1 [L76] SORT_1 init_51_arg_1 = var_49; [L77] state_50 = init_51_arg_1 [L78] SORT_1 init_53_arg_1 = var_11; [L79] state_52 = init_53_arg_1 [L80] SORT_1 init_55_arg_1 = var_11; [L81] state_54 = init_55_arg_1 [L82] SORT_1 init_57_arg_1 = var_11; [L83] state_56 = init_57_arg_1 [L84] SORT_5 init_59_arg_1 = var_45; [L85] state_58 = init_59_arg_1 [L86] SORT_5 init_62_arg_1 = var_60; [L87] state_61 = init_62_arg_1 [L88] SORT_5 init_64_arg_1 = var_60; [L89] state_63 = init_64_arg_1 [L90] SORT_5 init_66_arg_1 = var_60; [L91] state_65 = init_66_arg_1 [L92] SORT_1 init_69_arg_1 = var_11; [L93] state_68 = init_69_arg_1 [L94] SORT_1 init_71_arg_1 = var_11; [L95] state_70 = init_71_arg_1 [L96] SORT_1 init_73_arg_1 = var_11; [L97] state_72 = init_73_arg_1 [L98] SORT_1 init_75_arg_1 = var_11; [L99] state_74 = init_75_arg_1 VAL [init_13_arg_1=0, init_16_arg_1=0, init_21_arg_1=0, init_27_arg_1=0, init_51_arg_1=1, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_59_arg_1=1, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_69_arg_1=0, init_71_arg_1=0, init_73_arg_1=0, init_75_arg_1=0, mask_SORT_1=255, mask_SORT_3=3, mask_SORT_5=1, msb_SORT_1=128, msb_SORT_3=2, msb_SORT_5=1, state_12=0, state_15=0, state_20=0, state_26=0, state_50=1, state_52=0, state_54=0, state_56=0, state_58=1, state_61=0, state_63=0, state_65=0, state_68=0, state_70=0, state_72=0, state_74=0, var_108=3, var_11=0, var_45=1, var_49=1, var_60=0, var_81=0, var_90=1, var_99=2] [L102] input_2 = __VERIFIER_nondet_uchar() [L103] input_2 = input_2 & mask_SORT_1 VAL [init_13_arg_1=0, init_16_arg_1=0, init_21_arg_1=0, init_27_arg_1=0, init_51_arg_1=1, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_59_arg_1=1, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_69_arg_1=0, init_71_arg_1=0, init_73_arg_1=0, init_75_arg_1=0, input_2=0, mask_SORT_1=255, mask_SORT_3=3, mask_SORT_5=1, msb_SORT_1=128, msb_SORT_3=2, msb_SORT_5=1, state_12=0, state_15=0, state_20=0, state_26=0, state_50=1, state_52=0, state_54=0, state_56=0, state_58=1, state_61=0, state_63=0, state_65=0, state_68=0, state_70=0, state_72=0, state_74=0, var_108=3, var_11=0, var_45=1, var_49=1, var_60=0, var_81=0, var_90=1, var_99=2] [L104] input_4 = __VERIFIER_nondet_uchar() [L105] input_4 = input_4 & mask_SORT_3 VAL [init_13_arg_1=0, init_16_arg_1=0, init_21_arg_1=0, init_27_arg_1=0, init_51_arg_1=1, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_59_arg_1=1, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_69_arg_1=0, init_71_arg_1=0, init_73_arg_1=0, init_75_arg_1=0, input_2=0, input_4=0, mask_SORT_1=255, mask_SORT_3=3, mask_SORT_5=1, msb_SORT_1=128, msb_SORT_3=2, msb_SORT_5=1, state_12=0, state_15=0, state_20=0, state_26=0, state_50=1, state_52=0, state_54=0, state_56=0, state_58=1, state_61=0, state_63=0, state_65=0, state_68=0, state_70=0, state_72=0, state_74=0, var_108=3, var_11=0, var_45=1, var_49=1, var_60=0, var_81=0, var_90=1, var_99=2] [L106] input_6 = __VERIFIER_nondet_uchar() [L107] input_7 = __VERIFIER_nondet_uchar() [L108] input_7 = input_7 & mask_SORT_1 VAL [init_13_arg_1=0, init_16_arg_1=0, init_21_arg_1=0, init_27_arg_1=0, init_51_arg_1=1, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_59_arg_1=1, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_69_arg_1=0, init_71_arg_1=0, init_73_arg_1=0, init_75_arg_1=0, input_2=0, input_4=0, input_6=3, input_7=0, mask_SORT_1=255, mask_SORT_3=3, mask_SORT_5=1, msb_SORT_1=128, msb_SORT_3=2, msb_SORT_5=1, state_12=0, state_15=0, state_20=0, state_26=0, state_50=1, state_52=0, state_54=0, state_56=0, state_58=1, state_61=0, state_63=0, state_65=0, state_68=0, state_70=0, state_72=0, state_74=0, var_108=3, var_11=0, var_45=1, var_49=1, var_60=0, var_81=0, var_90=1, var_99=2] [L109] input_8 = __VERIFIER_nondet_uchar() [L110] input_8 = input_8 & mask_SORT_3 VAL [init_13_arg_1=0, init_16_arg_1=0, init_21_arg_1=0, init_27_arg_1=0, init_51_arg_1=1, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_59_arg_1=1, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_69_arg_1=0, init_71_arg_1=0, init_73_arg_1=0, init_75_arg_1=0, input_2=0, input_4=0, input_6=3, input_7=0, input_8=0, mask_SORT_1=255, mask_SORT_3=3, mask_SORT_5=1, msb_SORT_1=128, msb_SORT_3=2, msb_SORT_5=1, state_12=0, state_15=0, state_20=0, state_26=0, state_50=1, state_52=0, state_54=0, state_56=0, state_58=1, state_61=0, state_63=0, state_65=0, state_68=0, state_70=0, state_72=0, state_74=0, var_108=3, var_11=0, var_45=1, var_49=1, var_60=0, var_81=0, var_90=1, var_99=2] [L111] input_9 = __VERIFIER_nondet_uchar() [L112] input_9 = input_9 & mask_SORT_3 VAL [init_13_arg_1=0, init_16_arg_1=0, init_21_arg_1=0, init_27_arg_1=0, init_51_arg_1=1, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_59_arg_1=1, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_69_arg_1=0, init_71_arg_1=0, init_73_arg_1=0, init_75_arg_1=0, input_2=0, input_4=0, input_6=3, input_7=0, input_8=0, input_9=0, mask_SORT_1=255, mask_SORT_3=3, mask_SORT_5=1, msb_SORT_1=128, msb_SORT_3=2, msb_SORT_5=1, state_12=0, state_15=0, state_20=0, state_26=0, state_50=1, state_52=0, state_54=0, state_56=0, state_58=1, state_61=0, state_63=0, state_65=0, state_68=0, state_70=0, state_72=0, state_74=0, var_108=3, var_11=0, var_45=1, var_49=1, var_60=0, var_81=0, var_90=1, var_99=2] [L113] input_10 = __VERIFIER_nondet_uchar() [L114] input_10 = input_10 & mask_SORT_5 VAL [init_13_arg_1=0, init_16_arg_1=0, init_21_arg_1=0, init_27_arg_1=0, init_51_arg_1=1, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_59_arg_1=1, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_69_arg_1=0, init_71_arg_1=0, init_73_arg_1=0, init_75_arg_1=0, input_10=0, input_2=0, input_4=0, input_6=3, input_7=0, input_8=0, input_9=0, mask_SORT_1=255, mask_SORT_3=3, mask_SORT_5=1, msb_SORT_1=128, msb_SORT_3=2, msb_SORT_5=1, state_12=0, state_15=0, state_20=0, state_26=0, state_50=1, state_52=0, state_54=0, state_56=0, state_58=1, state_61=0, state_63=0, state_65=0, state_68=0, state_70=0, state_72=0, state_74=0, var_108=3, var_11=0, var_45=1, var_49=1, var_60=0, var_81=0, var_90=1, var_99=2] [L117] SORT_1 var_14_arg_0 = state_12; [L118] SORT_1 var_14_arg_1 = var_11; [L119] SORT_5 var_14 = var_14_arg_0 == var_14_arg_1; [L120] SORT_1 var_17_arg_0 = state_12; [L121] SORT_1 var_17_arg_1 = state_15; [L122] SORT_5 var_17 = var_17_arg_0 != var_17_arg_1; [L123] SORT_5 var_18_arg_0 = var_14; [L124] SORT_5 var_18_arg_1 = var_17; [L125] SORT_5 var_18 = var_18_arg_0 | var_18_arg_1; [L126] SORT_1 var_19_arg_0 = state_12; [L127] SORT_1 var_19_arg_1 = var_11; [L128] SORT_5 var_19 = var_19_arg_0 == var_19_arg_1; [L129] SORT_1 var_22_arg_0 = state_12; [L130] SORT_1 var_22_arg_1 = state_20; [L131] SORT_5 var_22 = var_22_arg_0 != var_22_arg_1; [L132] SORT_5 var_23_arg_0 = var_19; [L133] SORT_5 var_23_arg_1 = var_22; [L134] SORT_5 var_23 = var_23_arg_0 | var_23_arg_1; [L135] SORT_5 var_24_arg_0 = var_18; [L136] SORT_5 var_24_arg_1 = var_23; [L137] SORT_5 var_24 = var_24_arg_0 & var_24_arg_1; [L138] SORT_1 var_25_arg_0 = state_12; [L139] SORT_1 var_25_arg_1 = var_11; [L140] SORT_5 var_25 = var_25_arg_0 == var_25_arg_1; [L141] SORT_1 var_28_arg_0 = state_12; [L142] SORT_1 var_28_arg_1 = state_26; [L143] SORT_5 var_28 = var_28_arg_0 != var_28_arg_1; [L144] SORT_5 var_29_arg_0 = var_25; [L145] SORT_5 var_29_arg_1 = var_28; [L146] SORT_5 var_29 = var_29_arg_0 | var_29_arg_1; [L147] SORT_5 var_30_arg_0 = var_24; [L148] SORT_5 var_30_arg_1 = var_29; [L149] SORT_5 var_30 = var_30_arg_0 & var_30_arg_1; [L150] SORT_1 var_31_arg_0 = state_15; [L151] SORT_1 var_31_arg_1 = var_11; [L152] SORT_5 var_31 = var_31_arg_0 == var_31_arg_1; [L153] SORT_1 var_32_arg_0 = state_15; [L154] SORT_1 var_32_arg_1 = state_20; [L155] SORT_5 var_32 = var_32_arg_0 != var_32_arg_1; [L156] SORT_5 var_33_arg_0 = var_31; [L157] SORT_5 var_33_arg_1 = var_32; [L158] SORT_5 var_33 = var_33_arg_0 | var_33_arg_1; [L159] SORT_5 var_34_arg_0 = var_30; [L160] SORT_5 var_34_arg_1 = var_33; [L161] SORT_5 var_34 = var_34_arg_0 & var_34_arg_1; [L162] SORT_1 var_35_arg_0 = state_15; [L163] SORT_1 var_35_arg_1 = var_11; [L164] SORT_5 var_35 = var_35_arg_0 == var_35_arg_1; [L165] SORT_1 var_36_arg_0 = state_15; [L166] SORT_1 var_36_arg_1 = state_26; [L167] SORT_5 var_36 = var_36_arg_0 != var_36_arg_1; [L168] SORT_5 var_37_arg_0 = var_35; [L169] SORT_5 var_37_arg_1 = var_36; [L170] SORT_5 var_37 = var_37_arg_0 | var_37_arg_1; [L171] SORT_5 var_38_arg_0 = var_34; [L172] SORT_5 var_38_arg_1 = var_37; [L173] SORT_5 var_38 = var_38_arg_0 & var_38_arg_1; [L174] SORT_1 var_39_arg_0 = state_20; [L175] SORT_1 var_39_arg_1 = var_11; [L176] SORT_5 var_39 = var_39_arg_0 == var_39_arg_1; [L177] SORT_1 var_40_arg_0 = state_20; [L178] SORT_1 var_40_arg_1 = state_26; [L179] SORT_5 var_40 = var_40_arg_0 != var_40_arg_1; [L180] SORT_5 var_41_arg_0 = var_39; [L181] SORT_5 var_41_arg_1 = var_40; [L182] SORT_5 var_41 = var_41_arg_0 | var_41_arg_1; [L183] SORT_5 var_42_arg_0 = var_38; [L184] SORT_5 var_42_arg_1 = var_41; [L185] SORT_5 var_42 = var_42_arg_0 & var_42_arg_1; [L186] SORT_5 var_46_arg_0 = var_42; [L187] SORT_5 var_46 = ~var_46_arg_0; [L188] SORT_5 var_47_arg_0 = var_45; [L189] SORT_5 var_47_arg_1 = var_46; [L190] SORT_5 var_47 = var_47_arg_0 & var_47_arg_1; VAL [init_13_arg_1=0, init_16_arg_1=0, init_21_arg_1=0, init_27_arg_1=0, init_51_arg_1=1, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_59_arg_1=1, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_69_arg_1=0, init_71_arg_1=0, init_73_arg_1=0, init_75_arg_1=0, input_10=0, input_2=0, input_4=0, input_6=3, input_7=0, input_8=0, input_9=0, mask_SORT_1=255, mask_SORT_3=3, mask_SORT_5=1, msb_SORT_1=128, msb_SORT_3=2, msb_SORT_5=1, state_12=0, state_15=0, state_20=0, state_26=0, state_50=1, state_52=0, state_54=0, state_56=0, state_58=1, state_61=0, state_63=0, state_65=0, state_68=0, state_70=0, state_72=0, state_74=0, var_108=3, var_11=0, var_14=1, var_14_arg_0=0, var_14_arg_1=0, var_17=0, var_17_arg_0=0, var_17_arg_1=0, var_18=1, var_18_arg_0=1, var_18_arg_1=0, var_19=1, var_19_arg_0=0, var_19_arg_1=0, var_22=0, var_22_arg_0=0, var_22_arg_1=0, var_23=1, var_23_arg_0=1, var_23_arg_1=0, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=0, var_25_arg_1=0, var_28=0, var_28_arg_0=0, var_28_arg_1=0, var_29=1, var_29_arg_0=1, var_29_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=0, var_31_arg_1=0, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=1, var_33_arg_0=1, var_33_arg_1=0, var_34=1, var_34_arg_0=1, var_34_arg_1=1, var_35=1, var_35_arg_0=0, var_35_arg_1=0, var_36=0, var_36_arg_0=0, var_36_arg_1=0, var_37=1, var_37_arg_0=1, var_37_arg_1=0, var_38=1, var_38_arg_0=1, var_38_arg_1=1, var_39=1, var_39_arg_0=0, var_39_arg_1=0, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_41=1, var_41_arg_0=1, var_41_arg_1=0, var_42=1, var_42_arg_0=1, var_42_arg_1=1, var_45=1, var_46=2, var_46_arg_0=1, var_47=1, var_47_arg_0=1, var_47_arg_1=2, var_49=1, var_60=0, var_81=0, var_90=1, var_99=2] [L191] var_47 = var_47 & mask_SORT_5 VAL [init_13_arg_1=0, init_16_arg_1=0, init_21_arg_1=0, init_27_arg_1=0, init_51_arg_1=1, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_59_arg_1=1, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_69_arg_1=0, init_71_arg_1=0, init_73_arg_1=0, init_75_arg_1=0, input_10=0, input_2=0, input_4=0, input_6=3, input_7=0, input_8=0, input_9=0, mask_SORT_1=255, mask_SORT_3=3, mask_SORT_5=1, msb_SORT_1=128, msb_SORT_3=2, msb_SORT_5=1, state_12=0, state_15=0, state_20=0, state_26=0, state_50=1, state_52=0, state_54=0, state_56=0, state_58=1, state_61=0, state_63=0, state_65=0, state_68=0, state_70=0, state_72=0, state_74=0, var_108=3, var_11=0, var_14=1, var_14_arg_0=0, var_14_arg_1=0, var_17=0, var_17_arg_0=0, var_17_arg_1=0, var_18=1, var_18_arg_0=1, var_18_arg_1=0, var_19=1, var_19_arg_0=0, var_19_arg_1=0, var_22=0, var_22_arg_0=0, var_22_arg_1=0, var_23=1, var_23_arg_0=1, var_23_arg_1=0, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=0, var_25_arg_1=0, var_28=0, var_28_arg_0=0, var_28_arg_1=0, var_29=1, var_29_arg_0=1, var_29_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=0, var_31_arg_1=0, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=1, var_33_arg_0=1, var_33_arg_1=0, var_34=1, var_34_arg_0=1, var_34_arg_1=1, var_35=1, var_35_arg_0=0, var_35_arg_1=0, var_36=0, var_36_arg_0=0, var_36_arg_1=0, var_37=1, var_37_arg_0=1, var_37_arg_1=0, var_38=1, var_38_arg_0=1, var_38_arg_1=1, var_39=1, var_39_arg_0=0, var_39_arg_1=0, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_41=1, var_41_arg_0=1, var_41_arg_1=0, var_42=1, var_42_arg_0=1, var_42_arg_1=1, var_45=1, var_46=2, var_46_arg_0=1, var_47=1, var_47_arg_0=1, var_47_arg_1=2, var_49=1, var_60=0, var_81=0, var_90=1, var_99=2] [L192] SORT_5 bad_48_arg_0 = var_47; [L193] CALL __VERIFIER_assert(!(bad_48_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 462 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 462 mSDsluCounter, 418 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 223 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 195 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 115 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-16 12:35:29,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.toy_lock_4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 109ee6fb23cd6e30d14aec37d73eede06aedf81ad0f99da544662d8756597166 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:35:32,270 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:35:32,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:35:32,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:35:32,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:35:32,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:35:32,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:35:32,323 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:35:32,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:35:32,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:35:32,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:35:32,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:35:32,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:35:32,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:35:32,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:35:32,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:35:32,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:35:32,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:35:32,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:35:32,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:35:32,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:35:32,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:35:32,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:35:32,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:35:32,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:35:32,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:35:32,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:35:32,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:35:32,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:35:32,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:35:32,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:35:32,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:35:32,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:35:32,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:35:32,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:35:32,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:35:32,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:35:32,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:35:32,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:35:32,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:35:32,391 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:35:32,392 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-16 12:35:32,432 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:35:32,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:35:32,434 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:35:32,434 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:35:32,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:35:32,436 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:35:32,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:35:32,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:35:32,437 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:35:32,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:35:32,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:35:32,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:35:32,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:35:32,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:35:32,440 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 12:35:32,440 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 12:35:32,440 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 12:35:32,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:35:32,441 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:35:32,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:35:32,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:35:32,441 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:35:32,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:35:32,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:35:32,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:35:32,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:35:32,443 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:35:32,443 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 12:35:32,443 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 12:35:32,443 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:35:32,443 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:35:32,444 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:35:32,444 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 12:35:32,444 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 109ee6fb23cd6e30d14aec37d73eede06aedf81ad0f99da544662d8756597166 [2022-11-16 12:35:32,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:35:32,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:35:32,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:35:32,872 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:35:32,874 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:35:32,876 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.toy_lock_4.c [2022-11-16 12:35:32,950 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/data/28a969c5e/e0b313530ef7465680206d6312634329/FLAGcb5811346 [2022-11-16 12:35:33,568 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:35:33,569 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.toy_lock_4.c [2022-11-16 12:35:33,583 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/data/28a969c5e/e0b313530ef7465680206d6312634329/FLAGcb5811346 [2022-11-16 12:35:33,845 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/data/28a969c5e/e0b313530ef7465680206d6312634329 [2022-11-16 12:35:33,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:35:33,850 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:35:33,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:35:33,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:35:33,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:35:33,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:35:33" (1/1) ... [2022-11-16 12:35:33,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c18ebdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:33, skipping insertion in model container [2022-11-16 12:35:33,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:35:33" (1/1) ... [2022-11-16 12:35:33,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:35:33,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:35:34,081 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.toy_lock_4.c[1107,1120] [2022-11-16 12:35:34,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:35:34,314 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:35:34,325 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.toy_lock_4.c[1107,1120] [2022-11-16 12:35:34,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:35:34,460 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:35:34,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:34 WrapperNode [2022-11-16 12:35:34,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:35:34,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:35:34,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:35:34,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:35:34,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:34" (1/1) ... [2022-11-16 12:35:34,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:34" (1/1) ... [2022-11-16 12:35:34,583 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 871 [2022-11-16 12:35:34,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:35:34,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:35:34,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:35:34,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:35:34,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:34" (1/1) ... [2022-11-16 12:35:34,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:34" (1/1) ... [2022-11-16 12:35:34,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:34" (1/1) ... [2022-11-16 12:35:34,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:34" (1/1) ... [2022-11-16 12:35:34,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:34" (1/1) ... [2022-11-16 12:35:34,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:34" (1/1) ... [2022-11-16 12:35:34,629 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:34" (1/1) ... [2022-11-16 12:35:34,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:34" (1/1) ... [2022-11-16 12:35:34,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:35:34,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:35:34,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:35:34,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:35:34,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:34" (1/1) ... [2022-11-16 12:35:34,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:35:34,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:35:34,704 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:35:34,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:35:34,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:35:34,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:35:35,104 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:35:35,106 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:35:36,109 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:35:36,116 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:35:36,116 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:35:36,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:35:36 BoogieIcfgContainer [2022-11-16 12:35:36,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:35:36,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:35:36,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:35:36,124 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:35:36,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:35:33" (1/3) ... [2022-11-16 12:35:36,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@451059bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:35:36, skipping insertion in model container [2022-11-16 12:35:36,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:34" (2/3) ... [2022-11-16 12:35:36,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@451059bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:35:36, skipping insertion in model container [2022-11-16 12:35:36,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:35:36" (3/3) ... [2022-11-16 12:35:36,128 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.toy_lock_4.c [2022-11-16 12:35:36,147 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:35:36,147 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:35:36,216 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:35:36,225 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3597f456, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:35:36,225 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:35:36,229 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2022-11-16 12:35:36,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 12:35:36,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:35:36,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 12:35:36,239 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:35:36,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:36,246 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-16 12:35:36,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:35:36,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1126114811] [2022-11-16 12:35:36,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:36,262 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:35:36,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:35:36,270 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:35:36,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 12:35:36,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:36,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 61 conjunts are in the unsatisfiable core [2022-11-16 12:35:36,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:35:37,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:37,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:35:37,146 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:35:37,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1126114811] [2022-11-16 12:35:37,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1126114811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:35:37,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:35:37,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:35:37,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932419484] [2022-11-16 12:35:37,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:35:37,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:35:37,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:35:37,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:35:37,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:35:37,191 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-16 12:35:37,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:35:37,339 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-16 12:35:37,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:35:37,342 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Word has length 5 [2022-11-16 12:35:37,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:35:37,349 INFO L225 Difference]: With dead ends: 20 [2022-11-16 12:35:37,349 INFO L226 Difference]: Without dead ends: 11 [2022-11-16 12:35:37,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:35:37,355 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:35:37,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:35:37,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-16 12:35:37,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-16 12:35:37,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-11-16 12:35:37,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-16 12:35:37,395 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-16 12:35:37,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:35:37,395 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-16 12:35:37,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-16 12:35:37,396 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-16 12:35:37,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 12:35:37,396 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:35:37,396 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-16 12:35:37,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:35:37,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:35:37,608 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:35:37,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:37,609 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-16 12:35:37,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:35:37,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [889384612] [2022-11-16 12:35:37,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:37,611 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:35:37,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:35:37,612 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:35:37,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 12:35:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:38,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 124 conjunts are in the unsatisfiable core [2022-11-16 12:35:38,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:35:40,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:40,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:35:55,083 WARN L233 SmtUtils]: Spent 6.51s on a formula simplification. DAG size of input: 342 DAG size of output: 232 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:35:55,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:55,325 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:35:55,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [889384612] [2022-11-16 12:35:55,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [889384612] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:35:55,326 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:35:55,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-16 12:35:55,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582457619] [2022-11-16 12:35:55,326 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:35:55,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:35:55,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:35:55,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:35:55,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:35:55,334 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2022-11-16 12:35:55,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:35:55,557 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-16 12:35:55,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:35:55,558 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) Word has length 8 [2022-11-16 12:35:55,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:35:55,559 INFO L225 Difference]: With dead ends: 16 [2022-11-16 12:35:55,559 INFO L226 Difference]: Without dead ends: 14 [2022-11-16 12:35:55,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:35:55,560 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:35:55,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 15 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 9 Unchecked, 0.1s Time] [2022-11-16 12:35:55,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-16 12:35:55,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-16 12:35:55,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2022-11-16 12:35:55,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-16 12:35:55,566 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-16 12:35:55,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:35:55,566 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-16 12:35:55,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2022-11-16 12:35:55,567 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-16 12:35:55,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 12:35:55,567 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:35:55,568 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-16 12:35:55,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-16 12:35:55,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:35:55,779 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:35:55,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:55,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-16 12:35:55,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:35:55,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1824532375] [2022-11-16 12:35:55,782 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:35:55,782 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:35:55,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:35:55,784 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:35:55,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-16 12:35:56,636 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:35:56,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:35:56,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 1609 conjuncts, 191 conjunts are in the unsatisfiable core [2022-11-16 12:35:56,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:35:58,737 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:58,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:36:16,560 WARN L233 SmtUtils]: Spent 5.13s on a formula simplification. DAG size of input: 357 DAG size of output: 179 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:41:34,381 WARN L233 SmtUtils]: Spent 4.56m on a formula simplification. DAG size of input: 724 DAG size of output: 209 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:41:34,981 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:41:34,982 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:41:34,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1824532375] [2022-11-16 12:41:34,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1824532375] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:41:34,983 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:41:34,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-16 12:41:34,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734448276] [2022-11-16 12:41:34,983 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:41:34,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:41:34,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:41:34,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:41:34,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=61, Unknown=1, NotChecked=0, Total=90 [2022-11-16 12:41:34,985 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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) [2022-11-16 12:41:35,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:41:35,390 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-16 12:41:35,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:41:35,391 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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) Word has length 11 [2022-11-16 12:41:35,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:41:35,392 INFO L225 Difference]: With dead ends: 19 [2022-11-16 12:41:35,392 INFO L226 Difference]: Without dead ends: 17 [2022-11-16 12:41:35,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 283.4s TimeCoverageRelationStatistics Valid=55, Invalid=100, Unknown=1, NotChecked=0, Total=156 [2022-11-16 12:41:35,394 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:41:35,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 27 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 23 Unchecked, 0.2s Time] [2022-11-16 12:41:35,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-16 12:41:35,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-16 12:41:35,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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) [2022-11-16 12:41:35,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-16 12:41:35,402 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-16 12:41:35,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:41:35,402 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-16 12:41:35,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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) [2022-11-16 12:41:35,403 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-16 12:41:35,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 12:41:35,403 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:41:35,404 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-16 12:41:35,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:41:35,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:41:35,605 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:41:35,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:41:35,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-16 12:41:35,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:41:35,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1368803921] [2022-11-16 12:41:35,610 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:41:35,610 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:41:35,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:41:35,612 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:41:35,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-16 12:41:37,933 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-16 12:41:37,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:41:37,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 2346 conjuncts, 898 conjunts are in the unsatisfiable core [2022-11-16 12:41:38,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:41:51,643 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:41:51,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1368803921] [2022-11-16 12:41:51,644 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-16 12:41:51,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:41:51,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:41:51,855 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Maybe an infinite loop at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-16 12:41:51,859 INFO L158 Benchmark]: Toolchain (without parser) took 378008.97ms. Allocated memory was 62.9MB in the beginning and 738.2MB in the end (delta: 675.3MB). Free memory was 41.4MB in the beginning and 427.9MB in the end (delta: -386.5MB). Peak memory consumption was 464.2MB. Max. memory is 16.1GB. [2022-11-16 12:41:51,859 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 62.9MB. Free memory is still 44.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:41:51,860 INFO L158 Benchmark]: CACSL2BoogieTranslator took 609.64ms. Allocated memory was 62.9MB in the beginning and 83.9MB in the end (delta: 21.0MB). Free memory was 41.0MB in the beginning and 61.6MB in the end (delta: -20.6MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2022-11-16 12:41:51,864 INFO L158 Benchmark]: Boogie Procedure Inliner took 121.36ms. Allocated memory is still 83.9MB. Free memory was 61.6MB in the beginning and 54.7MB in the end (delta: 6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:41:51,864 INFO L158 Benchmark]: Boogie Preprocessor took 56.55ms. Allocated memory is still 83.9MB. Free memory was 54.7MB in the beginning and 50.2MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:41:51,865 INFO L158 Benchmark]: RCFGBuilder took 1476.71ms. Allocated memory was 83.9MB in the beginning and 111.1MB in the end (delta: 27.3MB). Free memory was 50.2MB in the beginning and 68.9MB in the end (delta: -18.7MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2022-11-16 12:41:51,865 INFO L158 Benchmark]: TraceAbstraction took 375737.29ms. Allocated memory was 111.1MB in the beginning and 738.2MB in the end (delta: 627.0MB). Free memory was 68.1MB in the beginning and 427.9MB in the end (delta: -359.7MB). Peak memory consumption was 442.8MB. Max. memory is 16.1GB. [2022-11-16 12:41:51,872 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 62.9MB. Free memory is still 44.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 609.64ms. Allocated memory was 62.9MB in the beginning and 83.9MB in the end (delta: 21.0MB). Free memory was 41.0MB in the beginning and 61.6MB in the end (delta: -20.6MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 121.36ms. Allocated memory is still 83.9MB. Free memory was 61.6MB in the beginning and 54.7MB in the end (delta: 6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.55ms. Allocated memory is still 83.9MB. Free memory was 54.7MB in the beginning and 50.2MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1476.71ms. Allocated memory was 83.9MB in the beginning and 111.1MB in the end (delta: 27.3MB). Free memory was 50.2MB in the beginning and 68.9MB in the end (delta: -18.7MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. * TraceAbstraction took 375737.29ms. Allocated memory was 111.1MB in the beginning and 738.2MB in the end (delta: 627.0MB). Free memory was 68.1MB in the beginning and 427.9MB in the end (delta: -359.7MB). Peak memory consumption was 442.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Maybe an infinite loop de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Maybe an infinite loop: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-16 12:41:51,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e2d539-a9da-4203-b194-27aaabf2e9ab/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Maybe an infinite loop