./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfada51d-5855-4cbb-8438-4b87b17e1cbb/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfada51d-5855-4cbb-8438-4b87b17e1cbb/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_dfada51d-5855-4cbb-8438-4b87b17e1cbb/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfada51d-5855-4cbb-8438-4b87b17e1cbb/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfada51d-5855-4cbb-8438-4b87b17e1cbb/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfada51d-5855-4cbb-8438-4b87b17e1cbb/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 84bce40124007e6e483bf8a05621b58460eab347da71074e5760fdf76654ee7f --- 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 11:05:21,554 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:05:21,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:05:21,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:05:21,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:05:21,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:05:21,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:05:21,598 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:05:21,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:05:21,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:05:21,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:05:21,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:05:21,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:05:21,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:05:21,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:05:21,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:05:21,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:05:21,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:05:21,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:05:21,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:05:21,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:05:21,637 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:05:21,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:05:21,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:05:21,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:05:21,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:05:21,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:05:21,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:05:21,644 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:05:21,645 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:05:21,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:05:21,646 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:05:21,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:05:21,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:05:21,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:05:21,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:05:21,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:05:21,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:05:21,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:05:21,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:05:21,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:05:21,661 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfada51d-5855-4cbb-8438-4b87b17e1cbb/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-16 11:05:21,694 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:05:21,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:05:21,695 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:05:21,695 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:05:21,696 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:05:21,696 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:05:21,696 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:05:21,696 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 11:05:21,697 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 11:05:21,697 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 11:05:21,697 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 11:05:21,697 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 11:05:21,697 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 11:05:21,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:05:21,698 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:05:21,698 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:05:21,698 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:05:21,698 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:05:21,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:05:21,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 11:05:21,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 11:05:21,702 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 11:05:21,702 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:05:21,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:05:21,703 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 11:05:21,703 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:05:21,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 11:05:21,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:05:21,705 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:05:21,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:05:21,705 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:05:21,706 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 11:05:21,706 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_dfada51d-5855-4cbb-8438-4b87b17e1cbb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfada51d-5855-4cbb-8438-4b87b17e1cbb/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84bce40124007e6e483bf8a05621b58460eab347da71074e5760fdf76654ee7f [2022-11-16 11:05:22,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:05:22,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:05:22,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:05:22,069 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:05:22,070 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:05:22,071 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfada51d-5855-4cbb-8438-4b87b17e1cbb/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c [2022-11-16 11:05:22,141 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfada51d-5855-4cbb-8438-4b87b17e1cbb/bin/uautomizer-tPACEb0tL8/data/87b8ccb1f/2d51b8c6578343c89588396317a32664/FLAG981561321 [2022-11-16 11:05:22,628 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:05:22,629 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfada51d-5855-4cbb-8438-4b87b17e1cbb/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c [2022-11-16 11:05:22,644 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfada51d-5855-4cbb-8438-4b87b17e1cbb/bin/uautomizer-tPACEb0tL8/data/87b8ccb1f/2d51b8c6578343c89588396317a32664/FLAG981561321 [2022-11-16 11:05:22,980 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfada51d-5855-4cbb-8438-4b87b17e1cbb/bin/uautomizer-tPACEb0tL8/data/87b8ccb1f/2d51b8c6578343c89588396317a32664 [2022-11-16 11:05:22,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:05:22,984 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:05:22,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:05:22,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:05:22,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:05:22,991 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:05:22" (1/1) ... [2022-11-16 11:05:22,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f2f4236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:22, skipping insertion in model container [2022-11-16 11:05:22,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:05:22" (1/1) ... [2022-11-16 11:05:23,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:05:23,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:05:23,317 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_dfada51d-5855-4cbb-8438-4b87b17e1cbb/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c[20019,20032] [2022-11-16 11:05:23,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:05:23,328 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:05:23,428 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_dfada51d-5855-4cbb-8438-4b87b17e1cbb/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c[20019,20032] [2022-11-16 11:05:23,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:05:23,449 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:05:23,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:23 WrapperNode [2022-11-16 11:05:23,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:05:23,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:05:23,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:05:23,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:05:23,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:23" (1/1) ... [2022-11-16 11:05:23,496 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:23" (1/1) ... [2022-11-16 11:05:23,550 INFO L138 Inliner]: procedures = 26, calls = 18, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 401 [2022-11-16 11:05:23,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:05:23,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:05:23,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:05:23,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:05:23,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:23" (1/1) ... [2022-11-16 11:05:23,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:23" (1/1) ... [2022-11-16 11:05:23,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:23" (1/1) ... [2022-11-16 11:05:23,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:23" (1/1) ... [2022-11-16 11:05:23,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:23" (1/1) ... [2022-11-16 11:05:23,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:23" (1/1) ... [2022-11-16 11:05:23,588 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:23" (1/1) ... [2022-11-16 11:05:23,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:23" (1/1) ... [2022-11-16 11:05:23,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:05:23,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:05:23,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:05:23,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:05:23,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:23" (1/1) ... [2022-11-16 11:05:23,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:05:23,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfada51d-5855-4cbb-8438-4b87b17e1cbb/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:05:23,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfada51d-5855-4cbb-8438-4b87b17e1cbb/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:05:23,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfada51d-5855-4cbb-8438-4b87b17e1cbb/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 11:05:23,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:05:23,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:05:23,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:05:23,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:05:23,876 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:05:23,878 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:05:24,410 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:05:24,418 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:05:24,418 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:05:24,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:05:24 BoogieIcfgContainer [2022-11-16 11:05:24,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:05:24,422 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 11:05:24,422 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 11:05:24,437 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 11:05:24,438 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:05:24,438 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 11:05:22" (1/3) ... [2022-11-16 11:05:24,439 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28c08df3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:05:24, skipping insertion in model container [2022-11-16 11:05:24,439 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:05:24,440 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:23" (2/3) ... [2022-11-16 11:05:24,440 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28c08df3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:05:24, skipping insertion in model container [2022-11-16 11:05:24,440 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:05:24,441 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:05:24" (3/3) ... [2022-11-16 11:05:24,442 INFO L332 chiAutomizerObserver]: Analyzing ICFG pals_lcr.7.ufo.BOUNDED-14.pals.c [2022-11-16 11:05:24,521 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 11:05:24,521 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 11:05:24,521 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 11:05:24,521 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 11:05:24,522 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 11:05:24,522 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 11:05:24,522 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 11:05:24,522 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 11:05:24,531 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 113 states, 112 states have (on average 1.7767857142857142) internal successors, (199), 112 states have internal predecessors, (199), 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 11:05:24,587 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 53 [2022-11-16 11:05:24,587 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:05:24,587 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:05:24,597 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:24,597 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:24,598 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 11:05:24,599 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 113 states, 112 states have (on average 1.7767857142857142) internal successors, (199), 112 states have internal predecessors, (199), 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 11:05:24,618 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 53 [2022-11-16 11:05:24,619 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:05:24,619 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:05:24,621 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:24,622 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:24,631 INFO L748 eck$LassoCheckResult]: Stem: 101#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(33, 2);call #Ultimate.allocInit(12, 3);~p4_old~0 := 0;~p4_new~0 := 0;~p5_new~0 := 0;~p5_old~0 := 0;~p2_old~0 := 0;~send4~0 := 0;~send5~0 := 0;~send6~0 := 0;~send7~0 := 0;~send1~0 := 0;~send2~0 := 0;~p2_new~0 := 0;~send3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~mode6~0 := 0;~p1~0 := 0;~mode5~0 := 0;~p2~0 := 0;~mode4~0 := 0;~p3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p5~0 := 0;~p6~0 := 0;~p7~0 := 0;~mode7~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~mode2~0 := 0;~mode1~0 := 0;~nomsg~0 := -1;~p6_new~0 := 0;~p6_old~0 := 0;~st2~0 := 0;~st1~0 := 0;~st4~0 := 0;~st3~0 := 0;~st6~0 := 0;~st5~0 := 0;~id2~0 := 0;~id1~0 := 0;~st7~0 := 0;~id4~0 := 0;~id3~0 := 0;~id6~0 := 0;~p7_new~0 := 0;~id5~0 := 0;~p7_old~0 := 0;~id7~0 := 0;~r1~0 := 0; 36#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~ret33#1, main_#t~ret34#1, main_#t~post35#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~r1~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;~id1~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;~st1~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;~send1~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~mode1~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~id2~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~st2~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~send2~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~mode2~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~id3~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~st3~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~send3~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~mode3~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~id4~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~st4~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~send4~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~mode4~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~id5~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~st5~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~send5~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~mode5~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~id6~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~st6~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~send6~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~mode6~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~id7~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~st7~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~send7~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~mode7~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 63#L260true assume !(0 == ~r1~0);init_~tmp~0#1 := 0; 72#L260-1true init_#res#1 := init_~tmp~0#1; 3#L461true main_#t~ret33#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret33#1;havoc main_#t~ret33#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 39#L22true assume !(0 == assume_abort_if_not_~cond#1); 89#L21true assume { :end_inline_assume_abort_if_not } true;~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~nomsg~0;~p7_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 68#L545-2true [2022-11-16 11:05:24,642 INFO L750 eck$LassoCheckResult]: Loop: 68#L545-2true assume !!(main_~i2~0#1 < 14);assume { :begin_inline_node1 } true;havoc node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 34#L85true assume !(0 != ~mode1~0 % 256);~p1_new~0 := (if (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 <= 127 then (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 else (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 - 256);~mode1~0 := 1; 6#L85-2true assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 20#L111true assume !(0 != ~mode2~0 % 256);~p2_new~0 := (if (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 <= 127 then (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 else (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 - 256);~mode2~0 := 1; 90#L111-2true assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 19#L136true assume !(0 != ~mode3~0 % 256);~p3_new~0 := (if (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 <= 127 then (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 else (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 - 256);~mode3~0 := 1; 29#L136-2true assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 16#L161true assume !(0 != ~mode4~0 % 256);~p4_new~0 := (if (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 <= 127 then (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 else (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 - 256);~mode4~0 := 1; 7#L161-2true assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0; 61#L186true assume !(0 != ~mode5~0 % 256);~p5_new~0 := (if (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 <= 127 then (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 else (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 - 256);~mode5~0 := 1; 11#L186-2true assume { :end_inline_node5 } true;assume { :begin_inline_node6 } true;havoc node6_~m6~0#1;havoc node6_~m6~0#1;node6_~m6~0#1 := ~nomsg~0; 94#L211true assume !(0 != ~mode6~0 % 256);~p6_new~0 := (if (if ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0 then ~send6~0 else ~p6_new~0) % 256 <= 127 then (if ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0 then ~send6~0 else ~p6_new~0) % 256 else (if ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0 then ~send6~0 else ~p6_new~0) % 256 - 256);~mode6~0 := 1; 77#L211-2true assume { :end_inline_node6 } true;assume { :begin_inline_node7 } true;havoc node7_~m7~0#1;havoc node7_~m7~0#1;node7_~m7~0#1 := ~nomsg~0; 55#L236true assume !(0 != ~mode7~0 % 256);~p7_new~0 := (if (if ~send7~0 != ~nomsg~0 && ~p7_new~0 == ~nomsg~0 then ~send7~0 else ~p7_new~0) % 256 <= 127 then (if ~send7~0 != ~nomsg~0 && ~p7_new~0 == ~nomsg~0 then ~send7~0 else ~p7_new~0) % 256 else (if ~send7~0 != ~nomsg~0 && ~p7_new~0 == ~nomsg~0 then ~send7~0 else ~p7_new~0) % 256 - 256);~mode7~0 := 1; 53#L236-2true assume { :end_inline_node7 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~p7_new~0;~p7_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 17#L469true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 <= 1);check_~tmp~1#1 := 0; 41#L469-1true check_#res#1 := check_~tmp~1#1; 99#L489true main_#t~ret34#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret34#1;havoc main_#t~ret34#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 112#L581true assume !(0 == assert_~arg#1 % 256); 80#L576true assume { :end_inline_assert } true;main_#t~post35#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post35#1;havoc main_#t~post35#1; 68#L545-2true [2022-11-16 11:05:24,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:24,655 INFO L85 PathProgramCache]: Analyzing trace with hash 2087378158, now seen corresponding path program 1 times [2022-11-16 11:05:24,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:24,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134365712] [2022-11-16 11:05:24,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:24,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:24,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:24,953 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 11:05:24,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:24,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134365712] [2022-11-16 11:05:24,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134365712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:24,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:24,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:05:24,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958145666] [2022-11-16 11:05:24,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:24,965 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-16 11:05:24,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:24,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1398300834, now seen corresponding path program 1 times [2022-11-16 11:05:24,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:24,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462699589] [2022-11-16 11:05:24,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:24,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:25,630 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 11:05:25,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:25,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462699589] [2022-11-16 11:05:25,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462699589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:25,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:25,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:05:25,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222051990] [2022-11-16 11:05:25,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:25,633 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-16 11:05:25,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:25,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:05:25,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:05:25,674 INFO L87 Difference]: Start difference. First operand has 113 states, 112 states have (on average 1.7767857142857142) internal successors, (199), 112 states have internal predecessors, (199), 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 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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 11:05:25,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:05:25,820 INFO L93 Difference]: Finished difference Result 116 states and 198 transitions. [2022-11-16 11:05:25,821 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 116 states and 198 transitions. [2022-11-16 11:05:25,824 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 52 [2022-11-16 11:05:25,828 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 116 states to 108 states and 141 transitions. [2022-11-16 11:05:25,829 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 108 [2022-11-16 11:05:25,830 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 108 [2022-11-16 11:05:25,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 141 transitions. [2022-11-16 11:05:25,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:25,835 INFO L218 hiAutomatonCegarLoop]: Abstraction has 108 states and 141 transitions. [2022-11-16 11:05:25,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 141 transitions. [2022-11-16 11:05:25,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2022-11-16 11:05:25,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 108 states have (on average 1.3055555555555556) internal successors, (141), 107 states have internal predecessors, (141), 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 11:05:25,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 141 transitions. [2022-11-16 11:05:25,886 INFO L240 hiAutomatonCegarLoop]: Abstraction has 108 states and 141 transitions. [2022-11-16 11:05:25,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:05:25,894 INFO L428 stractBuchiCegarLoop]: Abstraction has 108 states and 141 transitions. [2022-11-16 11:05:25,894 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 11:05:25,894 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states and 141 transitions. [2022-11-16 11:05:25,896 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 52 [2022-11-16 11:05:25,896 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:05:25,896 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:05:25,898 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:25,898 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:25,898 INFO L748 eck$LassoCheckResult]: Stem: 352#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(33, 2);call #Ultimate.allocInit(12, 3);~p4_old~0 := 0;~p4_new~0 := 0;~p5_new~0 := 0;~p5_old~0 := 0;~p2_old~0 := 0;~send4~0 := 0;~send5~0 := 0;~send6~0 := 0;~send7~0 := 0;~send1~0 := 0;~send2~0 := 0;~p2_new~0 := 0;~send3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~mode6~0 := 0;~p1~0 := 0;~mode5~0 := 0;~p2~0 := 0;~mode4~0 := 0;~p3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p5~0 := 0;~p6~0 := 0;~p7~0 := 0;~mode7~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~mode2~0 := 0;~mode1~0 := 0;~nomsg~0 := -1;~p6_new~0 := 0;~p6_old~0 := 0;~st2~0 := 0;~st1~0 := 0;~st4~0 := 0;~st3~0 := 0;~st6~0 := 0;~st5~0 := 0;~id2~0 := 0;~id1~0 := 0;~st7~0 := 0;~id4~0 := 0;~id3~0 := 0;~id6~0 := 0;~p7_new~0 := 0;~id5~0 := 0;~p7_old~0 := 0;~id7~0 := 0;~r1~0 := 0; 302#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~ret33#1, main_#t~ret34#1, main_#t~post35#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~r1~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;~id1~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;~st1~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;~send1~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~mode1~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~id2~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~st2~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~send2~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~mode2~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~id3~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~st3~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~send3~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~mode3~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~id4~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~st4~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~send4~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~mode4~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~id5~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~st5~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~send5~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~mode5~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~id6~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~st6~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~send6~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~mode6~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~id7~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~st7~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~send7~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~mode7~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 303#L260 assume 0 == ~r1~0; 332#L261 assume ~id1~0 >= 0; 318#L262 assume 0 == ~st1~0; 319#L263 assume ~send1~0 == ~id1~0; 324#L264 assume 0 == ~mode1~0 % 256; 325#L265 assume ~id2~0 >= 0; 269#L266 assume 0 == ~st2~0; 270#L267 assume ~send2~0 == ~id2~0; 284#L268 assume 0 == ~mode2~0 % 256; 285#L269 assume ~id3~0 >= 0; 265#L270 assume 0 == ~st3~0; 266#L271 assume ~send3~0 == ~id3~0; 294#L272 assume 0 == ~mode3~0 % 256; 308#L273 assume ~id4~0 >= 0; 321#L274 assume 0 == ~st4~0; 345#L275 assume ~send4~0 == ~id4~0; 247#L276 assume 0 == ~mode4~0 % 256; 248#L277 assume ~id5~0 >= 0; 354#L278 assume 0 == ~st5~0; 312#L279 assume ~send5~0 == ~id5~0; 313#L280 assume 0 == ~mode5~0 % 256; 277#L281 assume ~id6~0 >= 0; 251#L282 assume 0 == ~st6~0; 252#L283 assume ~send6~0 == ~id6~0; 326#L284 assume 0 == ~mode6~0 % 256; 327#L285 assume ~id7~0 >= 0; 343#L286 assume 0 == ~st7~0; 331#L287 assume ~send7~0 == ~id7~0; 288#L288 assume 0 == ~mode7~0 % 256; 289#L289 assume ~id1~0 != ~id2~0; 296#L290 assume ~id1~0 != ~id3~0; 337#L291 assume ~id1~0 != ~id4~0; 338#L292 assume ~id1~0 != ~id5~0; 346#L293 assume ~id1~0 != ~id6~0; 350#L294 assume ~id1~0 != ~id7~0; 259#L295 assume ~id2~0 != ~id3~0; 260#L296 assume ~id2~0 != ~id4~0; 295#L297 assume ~id2~0 != ~id5~0; 292#L298 assume ~id2~0 != ~id6~0; 293#L299 assume ~id2~0 != ~id7~0; 301#L300 assume ~id3~0 != ~id4~0; 333#L301 assume ~id3~0 != ~id5~0; 341#L302 assume ~id3~0 != ~id6~0; 342#L303 assume ~id3~0 != ~id7~0; 347#L304 assume ~id4~0 != ~id5~0; 328#L305 assume ~id4~0 != ~id6~0; 329#L306 assume ~id4~0 != ~id7~0; 336#L307 assume ~id5~0 != ~id6~0; 267#L308 assume ~id5~0 != ~id7~0; 268#L309 assume ~id6~0 != ~id7~0;init_~tmp~0#1 := 1; 339#L260-1 init_#res#1 := init_~tmp~0#1; 249#L461 main_#t~ret33#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret33#1;havoc main_#t~ret33#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 250#L22 assume !(0 == assume_abort_if_not_~cond#1); 307#L21 assume { :end_inline_assume_abort_if_not } true;~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~nomsg~0;~p7_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 335#L545-2 [2022-11-16 11:05:25,899 INFO L750 eck$LassoCheckResult]: Loop: 335#L545-2 assume !!(main_~i2~0#1 < 14);assume { :begin_inline_node1 } true;havoc node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 299#L85 assume !(0 != ~mode1~0 % 256);~p1_new~0 := (if (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 <= 127 then (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 else (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 - 256);~mode1~0 := 1; 253#L85-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 254#L111 assume !(0 != ~mode2~0 % 256);~p2_new~0 := (if (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 <= 127 then (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 else (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 - 256);~mode2~0 := 1; 280#L111-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 278#L136 assume !(0 != ~mode3~0 % 256);~p3_new~0 := (if (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 <= 127 then (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 else (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 - 256);~mode3~0 := 1; 262#L136-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 272#L161 assume !(0 != ~mode4~0 % 256);~p4_new~0 := (if (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 <= 127 then (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 else (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 - 256);~mode4~0 := 1; 255#L161-2 assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0; 256#L186 assume !(0 != ~mode5~0 % 256);~p5_new~0 := (if (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 <= 127 then (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 else (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 - 256);~mode5~0 := 1; 263#L186-2 assume { :end_inline_node5 } true;assume { :begin_inline_node6 } true;havoc node6_~m6~0#1;havoc node6_~m6~0#1;node6_~m6~0#1 := ~nomsg~0; 264#L211 assume !(0 != ~mode6~0 % 256);~p6_new~0 := (if (if ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0 then ~send6~0 else ~p6_new~0) % 256 <= 127 then (if ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0 then ~send6~0 else ~p6_new~0) % 256 else (if ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0 then ~send6~0 else ~p6_new~0) % 256 - 256);~mode6~0 := 1; 340#L211-2 assume { :end_inline_node6 } true;assume { :begin_inline_node7 } true;havoc node7_~m7~0#1;havoc node7_~m7~0#1;node7_~m7~0#1 := ~nomsg~0; 322#L236 assume !(0 != ~mode7~0 % 256);~p7_new~0 := (if (if ~send7~0 != ~nomsg~0 && ~p7_new~0 == ~nomsg~0 then ~send7~0 else ~p7_new~0) % 256 <= 127 then (if ~send7~0 != ~nomsg~0 && ~p7_new~0 == ~nomsg~0 then ~send7~0 else ~p7_new~0) % 256 else (if ~send7~0 != ~nomsg~0 && ~p7_new~0 == ~nomsg~0 then ~send7~0 else ~p7_new~0) % 256 - 256);~mode7~0 := 1; 283#L236-2 assume { :end_inline_node7 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~p7_new~0;~p7_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 274#L469 assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 <= 1);check_~tmp~1#1 := 0; 275#L469-1 check_#res#1 := check_~tmp~1#1; 309#L489 main_#t~ret34#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret34#1;havoc main_#t~ret34#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 351#L581 assume !(0 == assert_~arg#1 % 256); 344#L576 assume { :end_inline_assert } true;main_#t~post35#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post35#1;havoc main_#t~post35#1; 335#L545-2 [2022-11-16 11:05:25,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:25,899 INFO L85 PathProgramCache]: Analyzing trace with hash 292839954, now seen corresponding path program 1 times [2022-11-16 11:05:25,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:25,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472564566] [2022-11-16 11:05:25,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:25,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:05:25,951 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:05:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:05:26,041 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:05:26,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:26,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1398300834, now seen corresponding path program 2 times [2022-11-16 11:05:26,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:26,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709451558] [2022-11-16 11:05:26,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:26,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:26,327 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 11:05:26,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:26,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709451558] [2022-11-16 11:05:26,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709451558] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:26,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:26,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:05:26,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711321976] [2022-11-16 11:05:26,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:26,337 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-16 11:05:26,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:26,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:05:26,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:05:26,340 INFO L87 Difference]: Start difference. First operand 108 states and 141 transitions. cyclomatic complexity: 34 Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 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 11:05:26,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:05:26,400 INFO L93 Difference]: Finished difference Result 111 states and 143 transitions. [2022-11-16 11:05:26,400 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 143 transitions. [2022-11-16 11:05:26,407 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 52 [2022-11-16 11:05:26,413 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 108 states and 138 transitions. [2022-11-16 11:05:26,413 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 108 [2022-11-16 11:05:26,415 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 108 [2022-11-16 11:05:26,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 138 transitions. [2022-11-16 11:05:26,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:26,418 INFO L218 hiAutomatonCegarLoop]: Abstraction has 108 states and 138 transitions. [2022-11-16 11:05:26,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 138 transitions. [2022-11-16 11:05:26,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2022-11-16 11:05:26,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 108 states have (on average 1.2777777777777777) internal successors, (138), 107 states have internal predecessors, (138), 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 11:05:26,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 138 transitions. [2022-11-16 11:05:26,433 INFO L240 hiAutomatonCegarLoop]: Abstraction has 108 states and 138 transitions. [2022-11-16 11:05:26,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:05:26,435 INFO L428 stractBuchiCegarLoop]: Abstraction has 108 states and 138 transitions. [2022-11-16 11:05:26,436 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-16 11:05:26,436 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states and 138 transitions. [2022-11-16 11:05:26,438 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 52 [2022-11-16 11:05:26,440 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:05:26,440 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:05:26,442 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:26,444 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:26,445 INFO L748 eck$LassoCheckResult]: Stem: 583#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(33, 2);call #Ultimate.allocInit(12, 3);~p4_old~0 := 0;~p4_new~0 := 0;~p5_new~0 := 0;~p5_old~0 := 0;~p2_old~0 := 0;~send4~0 := 0;~send5~0 := 0;~send6~0 := 0;~send7~0 := 0;~send1~0 := 0;~send2~0 := 0;~p2_new~0 := 0;~send3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~mode6~0 := 0;~p1~0 := 0;~mode5~0 := 0;~p2~0 := 0;~mode4~0 := 0;~p3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p5~0 := 0;~p6~0 := 0;~p7~0 := 0;~mode7~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~mode2~0 := 0;~mode1~0 := 0;~nomsg~0 := -1;~p6_new~0 := 0;~p6_old~0 := 0;~st2~0 := 0;~st1~0 := 0;~st4~0 := 0;~st3~0 := 0;~st6~0 := 0;~st5~0 := 0;~id2~0 := 0;~id1~0 := 0;~st7~0 := 0;~id4~0 := 0;~id3~0 := 0;~id6~0 := 0;~p7_new~0 := 0;~id5~0 := 0;~p7_old~0 := 0;~id7~0 := 0;~r1~0 := 0; 532#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~ret33#1, main_#t~ret34#1, main_#t~post35#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~r1~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;~id1~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;~st1~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;~send1~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~mode1~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~id2~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~st2~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~send2~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~mode2~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~id3~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~st3~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~send3~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~mode3~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~id4~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~st4~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~send4~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~mode4~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~id5~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~st5~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~send5~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~mode5~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~id6~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~st6~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~send6~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~mode6~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~id7~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~st7~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~send7~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~mode7~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 533#L260 assume 0 == ~r1~0; 563#L261 assume ~id1~0 >= 0; 549#L262 assume 0 == ~st1~0; 550#L263 assume ~send1~0 == ~id1~0; 555#L264 assume 0 == ~mode1~0 % 256; 556#L265 assume ~id2~0 >= 0; 500#L266 assume 0 == ~st2~0; 501#L267 assume ~send2~0 == ~id2~0; 514#L268 assume 0 == ~mode2~0 % 256; 515#L269 assume ~id3~0 >= 0; 496#L270 assume 0 == ~st3~0; 497#L271 assume ~send3~0 == ~id3~0; 524#L272 assume 0 == ~mode3~0 % 256; 538#L273 assume ~id4~0 >= 0; 552#L274 assume 0 == ~st4~0; 576#L275 assume ~send4~0 == ~id4~0; 478#L276 assume 0 == ~mode4~0 % 256; 479#L277 assume ~id5~0 >= 0; 585#L278 assume 0 == ~st5~0; 543#L279 assume ~send5~0 == ~id5~0; 544#L280 assume 0 == ~mode5~0 % 256; 507#L281 assume ~id6~0 >= 0; 482#L282 assume 0 == ~st6~0; 483#L283 assume ~send6~0 == ~id6~0; 557#L284 assume 0 == ~mode6~0 % 256; 558#L285 assume ~id7~0 >= 0; 574#L286 assume 0 == ~st7~0; 562#L287 assume ~send7~0 == ~id7~0; 518#L288 assume 0 == ~mode7~0 % 256; 519#L289 assume ~id1~0 != ~id2~0; 526#L290 assume ~id1~0 != ~id3~0; 568#L291 assume ~id1~0 != ~id4~0; 569#L292 assume ~id1~0 != ~id5~0; 577#L293 assume ~id1~0 != ~id6~0; 581#L294 assume ~id1~0 != ~id7~0; 490#L295 assume ~id2~0 != ~id3~0; 491#L296 assume ~id2~0 != ~id4~0; 525#L297 assume ~id2~0 != ~id5~0; 522#L298 assume ~id2~0 != ~id6~0; 523#L299 assume ~id2~0 != ~id7~0; 531#L300 assume ~id3~0 != ~id4~0; 564#L301 assume ~id3~0 != ~id5~0; 572#L302 assume ~id3~0 != ~id6~0; 573#L303 assume ~id3~0 != ~id7~0; 578#L304 assume ~id4~0 != ~id5~0; 559#L305 assume ~id4~0 != ~id6~0; 560#L306 assume ~id4~0 != ~id7~0; 567#L307 assume ~id5~0 != ~id6~0; 498#L308 assume ~id5~0 != ~id7~0; 499#L309 assume ~id6~0 != ~id7~0;init_~tmp~0#1 := 1; 570#L260-1 init_#res#1 := init_~tmp~0#1; 480#L461 main_#t~ret33#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret33#1;havoc main_#t~ret33#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 481#L22 assume !(0 == assume_abort_if_not_~cond#1); 537#L21 assume { :end_inline_assume_abort_if_not } true;~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~nomsg~0;~p7_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 566#L545-2 [2022-11-16 11:05:26,446 INFO L750 eck$LassoCheckResult]: Loop: 566#L545-2 assume !!(main_~i2~0#1 < 14);assume { :begin_inline_node1 } true;havoc node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 529#L85 assume !(0 != ~mode1~0 % 256);~p1_new~0 := (if (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 <= 127 then (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 else (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 - 256);~mode1~0 := 1; 484#L85-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 485#L111 assume !(0 != ~mode2~0 % 256);~p2_new~0 := (if (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 <= 127 then (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 else (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 - 256);~mode2~0 := 1; 510#L111-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 508#L136 assume !(0 != ~mode3~0 % 256);~p3_new~0 := (if (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 <= 127 then (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 else (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 - 256);~mode3~0 := 1; 493#L136-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 503#L161 assume !(0 != ~mode4~0 % 256);~p4_new~0 := (if (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 <= 127 then (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 else (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 - 256);~mode4~0 := 1; 486#L161-2 assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0; 487#L186 assume !(0 != ~mode5~0 % 256);~p5_new~0 := (if (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 <= 127 then (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 else (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 - 256);~mode5~0 := 1; 494#L186-2 assume { :end_inline_node5 } true;assume { :begin_inline_node6 } true;havoc node6_~m6~0#1;havoc node6_~m6~0#1;node6_~m6~0#1 := ~nomsg~0; 495#L211 assume !(0 != ~mode6~0 % 256);~p6_new~0 := (if (if ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0 then ~send6~0 else ~p6_new~0) % 256 <= 127 then (if ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0 then ~send6~0 else ~p6_new~0) % 256 else (if ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0 then ~send6~0 else ~p6_new~0) % 256 - 256);~mode6~0 := 1; 571#L211-2 assume { :end_inline_node6 } true;assume { :begin_inline_node7 } true;havoc node7_~m7~0#1;havoc node7_~m7~0#1;node7_~m7~0#1 := ~nomsg~0; 553#L236 assume !(0 != ~mode7~0 % 256);~p7_new~0 := (if (if ~send7~0 != ~nomsg~0 && ~p7_new~0 == ~nomsg~0 then ~send7~0 else ~p7_new~0) % 256 <= 127 then (if ~send7~0 != ~nomsg~0 && ~p7_new~0 == ~nomsg~0 then ~send7~0 else ~p7_new~0) % 256 else (if ~send7~0 != ~nomsg~0 && ~p7_new~0 == ~nomsg~0 then ~send7~0 else ~p7_new~0) % 256 - 256);~mode7~0 := 1; 513#L236-2 assume { :end_inline_node7 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~p7_new~0;~p7_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 505#L469 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 <= 1; 506#L470 assume ~r1~0 >= 7; 545#L474 assume ~r1~0 < 7;check_~tmp~1#1 := 1; 539#L469-1 check_#res#1 := check_~tmp~1#1; 540#L489 main_#t~ret34#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret34#1;havoc main_#t~ret34#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 582#L581 assume !(0 == assert_~arg#1 % 256); 575#L576 assume { :end_inline_assert } true;main_#t~post35#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post35#1;havoc main_#t~post35#1; 566#L545-2 [2022-11-16 11:05:26,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:26,447 INFO L85 PathProgramCache]: Analyzing trace with hash 292839954, now seen corresponding path program 2 times [2022-11-16 11:05:26,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:26,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225639234] [2022-11-16 11:05:26,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:26,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:26,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:05:26,480 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:05:26,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:05:26,518 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:05:26,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:26,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1973476622, now seen corresponding path program 1 times [2022-11-16 11:05:26,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:26,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611197785] [2022-11-16 11:05:26,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:26,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:26,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:26,555 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 11:05:26,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:26,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611197785] [2022-11-16 11:05:26,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611197785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:26,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:26,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:05:26,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712365647] [2022-11-16 11:05:26,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:26,557 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-16 11:05:26,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:26,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:05:26,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:05:26,559 INFO L87 Difference]: Start difference. First operand 108 states and 138 transitions. cyclomatic complexity: 31 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 11:05:26,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:05:26,583 INFO L93 Difference]: Finished difference Result 154 states and 209 transitions. [2022-11-16 11:05:26,583 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 154 states and 209 transitions. [2022-11-16 11:05:26,585 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 98 [2022-11-16 11:05:26,586 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 154 states to 154 states and 209 transitions. [2022-11-16 11:05:26,587 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 154 [2022-11-16 11:05:26,587 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 154 [2022-11-16 11:05:26,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 154 states and 209 transitions. [2022-11-16 11:05:26,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:26,588 INFO L218 hiAutomatonCegarLoop]: Abstraction has 154 states and 209 transitions. [2022-11-16 11:05:26,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states and 209 transitions. [2022-11-16 11:05:26,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2022-11-16 11:05:26,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 154 states have (on average 1.3571428571428572) internal successors, (209), 153 states have internal predecessors, (209), 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 11:05:26,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 209 transitions. [2022-11-16 11:05:26,595 INFO L240 hiAutomatonCegarLoop]: Abstraction has 154 states and 209 transitions. [2022-11-16 11:05:26,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:05:26,596 INFO L428 stractBuchiCegarLoop]: Abstraction has 154 states and 209 transitions. [2022-11-16 11:05:26,597 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-16 11:05:26,597 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 154 states and 209 transitions. [2022-11-16 11:05:26,598 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 98 [2022-11-16 11:05:26,598 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:05:26,598 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:05:26,600 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:26,600 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:26,600 INFO L748 eck$LassoCheckResult]: Stem: 852#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(33, 2);call #Ultimate.allocInit(12, 3);~p4_old~0 := 0;~p4_new~0 := 0;~p5_new~0 := 0;~p5_old~0 := 0;~p2_old~0 := 0;~send4~0 := 0;~send5~0 := 0;~send6~0 := 0;~send7~0 := 0;~send1~0 := 0;~send2~0 := 0;~p2_new~0 := 0;~send3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~mode6~0 := 0;~p1~0 := 0;~mode5~0 := 0;~p2~0 := 0;~mode4~0 := 0;~p3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p5~0 := 0;~p6~0 := 0;~p7~0 := 0;~mode7~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~mode2~0 := 0;~mode1~0 := 0;~nomsg~0 := -1;~p6_new~0 := 0;~p6_old~0 := 0;~st2~0 := 0;~st1~0 := 0;~st4~0 := 0;~st3~0 := 0;~st6~0 := 0;~st5~0 := 0;~id2~0 := 0;~id1~0 := 0;~st7~0 := 0;~id4~0 := 0;~id3~0 := 0;~id6~0 := 0;~p7_new~0 := 0;~id5~0 := 0;~p7_old~0 := 0;~id7~0 := 0;~r1~0 := 0; 800#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~ret33#1, main_#t~ret34#1, main_#t~post35#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~r1~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;~id1~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;~st1~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;~send1~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~mode1~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~id2~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~st2~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~send2~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~mode2~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~id3~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~st3~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~send3~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~mode3~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~id4~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~st4~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~send4~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~mode4~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~id5~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~st5~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~send5~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~mode5~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~id6~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~st6~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~send6~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~mode6~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~id7~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~st7~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~send7~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~mode7~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 801#L260 assume 0 == ~r1~0; 832#L261 assume ~id1~0 >= 0; 818#L262 assume 0 == ~st1~0; 819#L263 assume ~send1~0 == ~id1~0; 824#L264 assume 0 == ~mode1~0 % 256; 825#L265 assume ~id2~0 >= 0; 768#L266 assume 0 == ~st2~0; 769#L267 assume ~send2~0 == ~id2~0; 782#L268 assume 0 == ~mode2~0 % 256; 783#L269 assume ~id3~0 >= 0; 764#L270 assume 0 == ~st3~0; 765#L271 assume ~send3~0 == ~id3~0; 792#L272 assume 0 == ~mode3~0 % 256; 806#L273 assume ~id4~0 >= 0; 821#L274 assume 0 == ~st4~0; 845#L275 assume ~send4~0 == ~id4~0; 746#L276 assume 0 == ~mode4~0 % 256; 747#L277 assume ~id5~0 >= 0; 856#L278 assume 0 == ~st5~0; 812#L279 assume ~send5~0 == ~id5~0; 813#L280 assume 0 == ~mode5~0 % 256; 775#L281 assume ~id6~0 >= 0; 750#L282 assume 0 == ~st6~0; 751#L283 assume ~send6~0 == ~id6~0; 826#L284 assume 0 == ~mode6~0 % 256; 827#L285 assume ~id7~0 >= 0; 843#L286 assume 0 == ~st7~0; 831#L287 assume ~send7~0 == ~id7~0; 786#L288 assume 0 == ~mode7~0 % 256; 787#L289 assume ~id1~0 != ~id2~0; 794#L290 assume ~id1~0 != ~id3~0; 837#L291 assume ~id1~0 != ~id4~0; 838#L292 assume ~id1~0 != ~id5~0; 846#L293 assume ~id1~0 != ~id6~0; 850#L294 assume ~id1~0 != ~id7~0; 758#L295 assume ~id2~0 != ~id3~0; 759#L296 assume ~id2~0 != ~id4~0; 793#L297 assume ~id2~0 != ~id5~0; 790#L298 assume ~id2~0 != ~id6~0; 791#L299 assume ~id2~0 != ~id7~0; 799#L300 assume ~id3~0 != ~id4~0; 833#L301 assume ~id3~0 != ~id5~0; 841#L302 assume ~id3~0 != ~id6~0; 842#L303 assume ~id3~0 != ~id7~0; 848#L304 assume ~id4~0 != ~id5~0; 828#L305 assume ~id4~0 != ~id6~0; 829#L306 assume ~id4~0 != ~id7~0; 836#L307 assume ~id5~0 != ~id6~0; 766#L308 assume ~id5~0 != ~id7~0; 767#L309 assume ~id6~0 != ~id7~0;init_~tmp~0#1 := 1; 839#L260-1 init_#res#1 := init_~tmp~0#1; 748#L461 main_#t~ret33#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret33#1;havoc main_#t~ret33#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 749#L22 assume !(0 == assume_abort_if_not_~cond#1); 805#L21 assume { :end_inline_assume_abort_if_not } true;~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~nomsg~0;~p7_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 847#L545-2 [2022-11-16 11:05:26,601 INFO L750 eck$LassoCheckResult]: Loop: 847#L545-2 assume !!(main_~i2~0#1 < 14);assume { :begin_inline_node1 } true;havoc node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 895#L85 assume !(0 != ~mode1~0 % 256);~p1_new~0 := (if (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 <= 127 then (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 else (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 - 256);~mode1~0 := 1; 809#L85-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 891#L111 assume !(0 != ~mode2~0 % 256);~p2_new~0 := (if (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 <= 127 then (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 else (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 - 256);~mode2~0 := 1; 887#L111-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 885#L136 assume !(0 != ~mode3~0 % 256);~p3_new~0 := (if (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 <= 127 then (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 else (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 - 256);~mode3~0 := 1; 883#L136-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 879#L161 assume !(0 != ~mode4~0 % 256);~p4_new~0 := (if (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 <= 127 then (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 else (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 - 256);~mode4~0 := 1; 875#L161-2 assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0; 872#L186 assume !(0 != ~mode5~0 % 256);~p5_new~0 := (if (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 <= 127 then (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 else (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 - 256);~mode5~0 := 1; 869#L186-2 assume { :end_inline_node5 } true;assume { :begin_inline_node6 } true;havoc node6_~m6~0#1;havoc node6_~m6~0#1;node6_~m6~0#1 := ~nomsg~0; 867#L211 assume !(0 != ~mode6~0 % 256);~p6_new~0 := (if (if ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0 then ~send6~0 else ~p6_new~0) % 256 <= 127 then (if ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0 then ~send6~0 else ~p6_new~0) % 256 else (if ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0 then ~send6~0 else ~p6_new~0) % 256 - 256);~mode6~0 := 1; 865#L211-2 assume { :end_inline_node6 } true;assume { :begin_inline_node7 } true;havoc node7_~m7~0#1;havoc node7_~m7~0#1;node7_~m7~0#1 := ~nomsg~0; 861#L236 assume !(0 != ~mode7~0 % 256);~p7_new~0 := (if (if ~send7~0 != ~nomsg~0 && ~p7_new~0 == ~nomsg~0 then ~send7~0 else ~p7_new~0) % 256 <= 127 then (if ~send7~0 != ~nomsg~0 && ~p7_new~0 == ~nomsg~0 then ~send7~0 else ~p7_new~0) % 256 else (if ~send7~0 != ~nomsg~0 && ~p7_new~0 == ~nomsg~0 then ~send7~0 else ~p7_new~0) % 256 - 256);~mode7~0 := 1; 859#L236-2 assume { :end_inline_node7 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~p7_new~0;~p7_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 858#L469 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 <= 1; 857#L470 assume !(~r1~0 >= 7); 853#L473 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0; 854#L474 assume ~r1~0 < 7;check_~tmp~1#1 := 1; 899#L469-1 check_#res#1 := check_~tmp~1#1; 898#L489 main_#t~ret34#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret34#1;havoc main_#t~ret34#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 897#L581 assume !(0 == assert_~arg#1 % 256); 896#L576 assume { :end_inline_assert } true;main_#t~post35#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post35#1;havoc main_#t~post35#1; 847#L545-2 [2022-11-16 11:05:26,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:26,601 INFO L85 PathProgramCache]: Analyzing trace with hash 292839954, now seen corresponding path program 3 times [2022-11-16 11:05:26,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:26,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56665258] [2022-11-16 11:05:26,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:26,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:05:26,620 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:05:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:05:26,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:05:26,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:26,660 INFO L85 PathProgramCache]: Analyzing trace with hash 598338978, now seen corresponding path program 1 times [2022-11-16 11:05:26,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:26,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770937107] [2022-11-16 11:05:26,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:26,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:05:26,703 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:05:26,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:05:26,748 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:05:26,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:26,749 INFO L85 PathProgramCache]: Analyzing trace with hash 75614321, now seen corresponding path program 1 times [2022-11-16 11:05:26,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:26,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933498280] [2022-11-16 11:05:26,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:26,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:26,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:05:26,804 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:05:26,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:05:26,875 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:05:35,693 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:05:35,694 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:05:35,694 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:05:35,695 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:05:35,695 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:05:35,695 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:05:35,695 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:05:35,695 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:05:35,696 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr.7.ufo.BOUNDED-14.pals.c_Iteration4_Loop [2022-11-16 11:05:35,696 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:05:35,696 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:05:35,743 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:05:35,756 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:05:35,762 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:05:35,767 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:05:35,773 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:05:35,778 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:05:35,784 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:05:39,451 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:05:39,465 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:05:39,469 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:05:39,472 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:05:39,477 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:05:39,484 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:05:39,490 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:05:39,493 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:05:43,689 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 41