./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/LexIndexValue-Pointer-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/LexIndexValue-Pointer-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1bedc761cea545b8144ad4138a379d7139cc98703c76e9b536a2e7389d5b6a10 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:32:48,069 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:32:48,195 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-19 07:32:48,206 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:32:48,207 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:32:48,245 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:32:48,246 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:32:48,247 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:32:48,248 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:32:48,253 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:32:48,254 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:32:48,255 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:32:48,255 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:32:48,257 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:32:48,258 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:32:48,258 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:32:48,258 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:32:48,259 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:32:48,260 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:32:48,260 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:32:48,261 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:32:48,262 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:32:48,262 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:32:48,263 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:32:48,263 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:32:48,264 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:32:48,268 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:32:48,269 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:32:48,269 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:32:48,270 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:32:48,271 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:32:48,272 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:32:48,272 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:32:48,273 INFO L153 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_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1bedc761cea545b8144ad4138a379d7139cc98703c76e9b536a2e7389d5b6a10 [2023-11-19 07:32:48,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:32:48,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:32:48,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:32:48,613 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:32:48,614 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:32:48,616 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/termination-crafted/LexIndexValue-Pointer-2.c [2023-11-19 07:32:51,756 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:32:51,993 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:32:51,993 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/sv-benchmarks/c/termination-crafted/LexIndexValue-Pointer-2.c [2023-11-19 07:32:52,001 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/data/897756cdb/7cd74e12891b444b8afcc7bd3e38d423/FLAG9b9f7e5b7 [2023-11-19 07:32:52,016 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/data/897756cdb/7cd74e12891b444b8afcc7bd3e38d423 [2023-11-19 07:32:52,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:32:52,020 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:32:52,022 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:32:52,023 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:32:52,035 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:32:52,036 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:32:52" (1/1) ... [2023-11-19 07:32:52,039 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@439b840e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:52, skipping insertion in model container [2023-11-19 07:32:52,039 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:32:52" (1/1) ... [2023-11-19 07:32:52,061 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:32:52,215 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:32:52,233 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:32:52,245 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:32:52,261 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:32:52,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:52 WrapperNode [2023-11-19 07:32:52,262 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:32:52,264 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:32:52,264 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:32:52,264 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:32:52,273 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:52" (1/1) ... [2023-11-19 07:32:52,279 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:52" (1/1) ... [2023-11-19 07:32:52,306 INFO L138 Inliner]: procedures = 10, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 49 [2023-11-19 07:32:52,306 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:32:52,307 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:32:52,308 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:32:52,308 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:32:52,317 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:52" (1/1) ... [2023-11-19 07:32:52,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:52" (1/1) ... [2023-11-19 07:32:52,320 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:52" (1/1) ... [2023-11-19 07:32:52,320 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:52" (1/1) ... [2023-11-19 07:32:52,330 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:52" (1/1) ... [2023-11-19 07:32:52,334 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:52" (1/1) ... [2023-11-19 07:32:52,335 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:52" (1/1) ... [2023-11-19 07:32:52,336 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:52" (1/1) ... [2023-11-19 07:32:52,345 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:32:52,346 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:32:52,346 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:32:52,346 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:32:52,347 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:52" (1/1) ... [2023-11-19 07:32:52,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:32:52,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:32:52,386 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:32:52,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:32:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:32:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:32:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:32:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:32:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:32:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:32:52,508 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:32:52,511 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:32:52,657 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:32:52,670 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:32:52,670 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:32:52,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:32:52 BoogieIcfgContainer [2023-11-19 07:32:52,674 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:32:52,675 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:32:52,675 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:32:52,680 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:32:52,681 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:32:52,682 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:32:52" (1/3) ... [2023-11-19 07:32:52,683 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1153e7ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:32:52, skipping insertion in model container [2023-11-19 07:32:52,683 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:32:52,684 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:52" (2/3) ... [2023-11-19 07:32:52,684 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1153e7ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:32:52, skipping insertion in model container [2023-11-19 07:32:52,685 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:32:52,685 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:32:52" (3/3) ... [2023-11-19 07:32:52,687 INFO L332 chiAutomizerObserver]: Analyzing ICFG LexIndexValue-Pointer-2.c [2023-11-19 07:32:52,751 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:32:52,752 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:32:52,752 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:32:52,752 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:32:52,752 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:32:52,753 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:32:52,753 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:32:52,753 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:32:52,758 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:32:52,778 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-19 07:32:52,779 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:32:52,779 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:32:52,785 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:32:52,786 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:32:52,786 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:32:52,786 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:32:52,788 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-19 07:32:52,789 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:32:52,789 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:32:52,789 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:32:52,789 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:32:52,798 INFO L748 eck$LassoCheckResult]: Stem: 11#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~nondet3#1, main_#t~post2#1, main_~i~0#1, main_#t~nondet6#1, main_#t~post7#1.base, main_#t~post7#1.offset, main_#t~mem8#1, main_#t~post9#1, main_#t~mem4#1, main_#t~short5#1, main_~p~0#1.base, main_~p~0#1.offset, main_~q~0#1.base, main_~q~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(4192);main_~p~0#1.base, main_~p~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;main_~q~0#1.base, main_~q~0#1.offset := main_~p~0#1.base, main_~p~0#1.offset;main_~i~0#1 := 0; 9#L18-3true [2023-11-19 07:32:52,798 INFO L750 eck$LassoCheckResult]: Loop: 9#L18-3true assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 7#L18-2true main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 9#L18-3true [2023-11-19 07:32:52,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:32:52,803 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-19 07:32:52,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:32:52,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446555956] [2023-11-19 07:32:52,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:32:52,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:32:52,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:32:52,923 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:32:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:32:52,952 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:32:52,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:32:52,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2023-11-19 07:32:52,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:32:52,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029349940] [2023-11-19 07:32:52,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:32:52,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:32:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:32:52,979 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:32:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:32:53,001 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:32:53,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:32:53,004 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2023-11-19 07:32:53,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:32:53,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036750681] [2023-11-19 07:32:53,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:32:53,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:32:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:32:53,060 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:32:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:32:53,102 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:32:53,492 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:32:53,494 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:32:53,494 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:32:53,494 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:32:53,494 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:32:53,495 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:32:53,495 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:32:53,495 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:32:53,495 INFO L133 ssoRankerPreferences]: Filename of dumped script: LexIndexValue-Pointer-2.c_Iteration1_Lasso [2023-11-19 07:32:53,495 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:32:53,496 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:32:53,523 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:32:53,537 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:32:53,543 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:32:53,547 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:32:53,550 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:32:53,557 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:32:53,563 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:32:53,569 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:32:53,571 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:32:53,576 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:32:53,580 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:32:53,584 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:32:53,588 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:32:53,789 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:32:54,078 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:32:54,083 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:32:54,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:32:54,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:32:54,090 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:32:54,102 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:32:54,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-19 07:32:54,115 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:32:54,115 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:32:54,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:32:54,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:32:54,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:32:54,118 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:32:54,119 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:32:54,128 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:32:54,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-19 07:32:54,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:32:54,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:32:54,154 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:32:54,161 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:32:54,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:32:54,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:32:54,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:32:54,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:32:54,178 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:32:54,179 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:32:54,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-19 07:32:54,190 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:32:54,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:32:54,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:32:54,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:32:54,215 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:32:54,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-19 07:32:54,217 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:32:54,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:32:54,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:32:54,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:32:54,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:32:54,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:32:54,232 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:32:54,232 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:32:54,241 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:32:54,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:32:54,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:32:54,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:32:54,268 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:32:54,271 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:32:54,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-19 07:32:54,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:32:54,283 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:32:54,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:32:54,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:32:54,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:32:54,284 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:32:54,284 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:32:54,294 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:32:54,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:32:54,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:32:54,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:32:54,314 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:32:54,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-19 07:32:54,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:32:54,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:32:54,326 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:32:54,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:32:54,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:32:54,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:32:54,328 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:32:54,328 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:32:54,338 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:32:54,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:32:54,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:32:54,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:32:54,364 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:32:54,375 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:32:54,388 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:32:54,388 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:32:54,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:32:54,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:32:54,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:32:54,389 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:32:54,390 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:32:54,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-19 07:32:54,400 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:32:54,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:32:54,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:32:54,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:32:54,430 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:32:54,432 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:32:54,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:32:54,445 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:32:54,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:32:54,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:32:54,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:32:54,446 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:32:54,447 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:32:54,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-19 07:32:54,464 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:32:54,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:32:54,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:32:54,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:32:54,491 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:32:54,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-19 07:32:54,496 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:32:54,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:32:54,510 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:32:54,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:32:54,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:32:54,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:32:54,511 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:32:54,512 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:32:54,521 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:32:54,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:32:54,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:32:54,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:32:54,555 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:32:54,563 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:32:54,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-19 07:32:54,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:32:54,579 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:32:54,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:32:54,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:32:54,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:32:54,580 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:32:54,580 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:32:54,589 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:32:54,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:32:54,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:32:54,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:32:54,615 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:32:54,626 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:32:54,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-19 07:32:54,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:32:54,642 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:32:54,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:32:54,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:32:54,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:32:54,644 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:32:54,644 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:32:54,654 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:32:54,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:32:54,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:32:54,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:32:54,682 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:32:54,685 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:32:54,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-19 07:32:54,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:32:54,699 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:32:54,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:32:54,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:32:54,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:32:54,701 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:32:54,701 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:32:54,710 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:32:54,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:32:54,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:32:54,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:32:54,736 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:32:54,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-19 07:32:54,740 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:32:54,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:32:54,751 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:32:54,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:32:54,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:32:54,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:32:54,752 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:32:54,752 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:32:54,763 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:32:54,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:32:54,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:32:54,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:32:54,777 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:32:54,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-19 07:32:54,780 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:32:54,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:32:54,790 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:32:54,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:32:54,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:32:54,817 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:32:54,817 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:32:54,841 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:32:54,878 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2023-11-19 07:32:54,878 INFO L444 ModelExtractionUtils]: 2 out of 16 variables were initially zero. Simplification set additionally 11 variables to zero. [2023-11-19 07:32:54,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:32:54,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:32:54,922 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:32:54,926 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:32:54,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-19 07:32:54,949 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-19 07:32:54,950 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:32:54,950 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~p~0#1.base)_1, ULTIMATE.start_main_~i~0#1) = 2095*v_rep(select #length ULTIMATE.start_main_~p~0#1.base)_1 - 8*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-19 07:32:54,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:32:54,985 INFO L156 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2023-11-19 07:32:54,995 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[~p~0!base] could not be translated [2023-11-19 07:32:55,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:32:55,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:32:55,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:32:55,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:32:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:32:55,086 WARN L260 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:32:55,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:32:55,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:32:55,190 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-19 07:32:55,193 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-19 07:32:55,274 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) Result 25 states and 37 transitions. Complement of second has 8 states. [2023-11-19 07:32:55,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-19 07:32:55,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-19 07:32:55,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2023-11-19 07:32:55,284 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 2 letters. [2023-11-19 07:32:55,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:32:55,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-19 07:32:55,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:32:55,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-19 07:32:55,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:32:55,287 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 37 transitions. [2023-11-19 07:32:55,290 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:32:55,293 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 10 states and 14 transitions. [2023-11-19 07:32:55,294 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-19 07:32:55,294 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-19 07:32:55,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2023-11-19 07:32:55,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:32:55,295 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2023-11-19 07:32:55,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2023-11-19 07:32:55,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-11-19 07:32:55,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:32:55,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 14 transitions. [2023-11-19 07:32:55,318 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2023-11-19 07:32:55,318 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2023-11-19 07:32:55,318 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 07:32:55,318 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 14 transitions. [2023-11-19 07:32:55,319 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:32:55,319 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:32:55,319 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:32:55,320 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-19 07:32:55,320 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:32:55,320 INFO L748 eck$LassoCheckResult]: Stem: 102#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 103#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~nondet3#1, main_#t~post2#1, main_~i~0#1, main_#t~nondet6#1, main_#t~post7#1.base, main_#t~post7#1.offset, main_#t~mem8#1, main_#t~post9#1, main_#t~mem4#1, main_#t~short5#1, main_~p~0#1.base, main_~p~0#1.offset, main_~q~0#1.base, main_~q~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(4192);main_~p~0#1.base, main_~p~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;main_~q~0#1.base, main_~q~0#1.offset := main_~p~0#1.base, main_~p~0#1.offset;main_~i~0#1 := 0; 100#L18-3 assume !(main_~i~0#1 < 1048); 99#L18-4 havoc main_~i~0#1;main_~q~0#1.base, main_~q~0#1.offset := main_~p~0#1.base, main_~p~0#1.offset; 98#L23-2 [2023-11-19 07:32:55,320 INFO L750 eck$LassoCheckResult]: Loop: 98#L23-2 assume main_~q~0#1.base == main_~p~0#1.base;main_#t~short5#1 := main_~q~0#1.offset < 4192 + main_~p~0#1.offset; 94#L22-1 assume main_#t~short5#1;call main_#t~mem4#1 := read~int(main_~q~0#1.base, main_~q~0#1.offset, 4);main_#t~short5#1 := main_#t~mem4#1 >= 0; 95#L22-3 assume !!main_#t~short5#1;havoc main_#t~mem4#1;havoc main_#t~short5#1;havoc main_#t~nondet6#1; 101#L23 assume 0 != main_#t~nondet6#1;havoc main_#t~nondet6#1;main_#t~post7#1.base, main_#t~post7#1.offset := main_~q~0#1.base, main_~q~0#1.offset;main_~q~0#1.base, main_~q~0#1.offset := main_#t~post7#1.base, 4 + main_#t~post7#1.offset;havoc main_#t~post7#1.base, main_#t~post7#1.offset; 98#L23-2 [2023-11-19 07:32:55,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:32:55,323 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2023-11-19 07:32:55,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:32:55,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482253262] [2023-11-19 07:32:55,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:32:55,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:32:55,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:32:55,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:32:55,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:32:55,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482253262] [2023-11-19 07:32:55,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482253262] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:32:55,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:32:55,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:32:55,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785007231] [2023-11-19 07:32:55,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:32:55,394 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 07:32:55,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:32:55,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1573223, now seen corresponding path program 1 times [2023-11-19 07:32:55,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:32:55,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930885102] [2023-11-19 07:32:55,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:32:55,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:32:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:32:55,403 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:32:55,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:32:55,417 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:32:55,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:32:55,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:32:55,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:32:55,554 INFO L87 Difference]: Start difference. First operand 10 states and 14 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-19 07:32:55,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:32:55,570 INFO L93 Difference]: Finished difference Result 11 states and 14 transitions. [2023-11-19 07:32:55,570 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2023-11-19 07:32:55,573 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:32:55,574 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 14 transitions. [2023-11-19 07:32:55,575 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-19 07:32:55,575 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-19 07:32:55,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2023-11-19 07:32:55,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:32:55,576 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-11-19 07:32:55,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2023-11-19 07:32:55,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2023-11-19 07:32:55,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:32:55,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2023-11-19 07:32:55,578 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-19 07:32:55,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:32:55,581 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-19 07:32:55,581 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-19 07:32:55,581 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2023-11-19 07:32:55,582 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:32:55,583 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:32:55,583 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:32:55,583 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:32:55,583 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:32:55,584 INFO L748 eck$LassoCheckResult]: Stem: 129#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 130#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~nondet3#1, main_#t~post2#1, main_~i~0#1, main_#t~nondet6#1, main_#t~post7#1.base, main_#t~post7#1.offset, main_#t~mem8#1, main_#t~post9#1, main_#t~mem4#1, main_#t~short5#1, main_~p~0#1.base, main_~p~0#1.offset, main_~q~0#1.base, main_~q~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(4192);main_~p~0#1.base, main_~p~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;main_~q~0#1.base, main_~q~0#1.offset := main_~p~0#1.base, main_~p~0#1.offset;main_~i~0#1 := 0; 126#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 123#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 124#L18-3 assume !(main_~i~0#1 < 1048); 127#L18-4 havoc main_~i~0#1;main_~q~0#1.base, main_~q~0#1.offset := main_~p~0#1.base, main_~p~0#1.offset; 125#L23-2 [2023-11-19 07:32:55,584 INFO L750 eck$LassoCheckResult]: Loop: 125#L23-2 assume main_~q~0#1.base == main_~p~0#1.base;main_#t~short5#1 := main_~q~0#1.offset < 4192 + main_~p~0#1.offset; 121#L22-1 assume main_#t~short5#1;call main_#t~mem4#1 := read~int(main_~q~0#1.base, main_~q~0#1.offset, 4);main_#t~short5#1 := main_#t~mem4#1 >= 0; 122#L22-3 assume !!main_#t~short5#1;havoc main_#t~mem4#1;havoc main_#t~short5#1;havoc main_#t~nondet6#1; 128#L23 assume 0 != main_#t~nondet6#1;havoc main_#t~nondet6#1;main_#t~post7#1.base, main_#t~post7#1.offset := main_~q~0#1.base, main_~q~0#1.offset;main_~q~0#1.base, main_~q~0#1.offset := main_#t~post7#1.base, 4 + main_#t~post7#1.offset;havoc main_#t~post7#1.base, main_#t~post7#1.offset; 125#L23-2 [2023-11-19 07:32:55,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:32:55,585 INFO L85 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2023-11-19 07:32:55,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:32:55,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764978241] [2023-11-19 07:32:55,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:32:55,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:32:55,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:32:55,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:32:55,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:32:55,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764978241] [2023-11-19 07:32:55,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764978241] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:32:55,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852985807] [2023-11-19 07:32:55,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:32:55,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:32:55,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:32:55,713 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:32:55,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-19 07:32:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:32:55,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:32:55,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:32:55,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:32:55,789 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:32:55,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:32:55,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852985807] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:32:55,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:32:55,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-19 07:32:55,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884183635] [2023-11-19 07:32:55,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:32:55,818 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 07:32:55,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:32:55,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1573223, now seen corresponding path program 2 times [2023-11-19 07:32:55,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:32:55,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213322827] [2023-11-19 07:32:55,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:32:55,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:32:55,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:32:55,838 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:32:55,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:32:55,855 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:32:55,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-19 07:32:56,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:32:56,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:32:56,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:32:56,049 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:32:56,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:32:56,096 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2023-11-19 07:32:56,096 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2023-11-19 07:32:56,101 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:32:56,103 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 19 transitions. [2023-11-19 07:32:56,104 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-19 07:32:56,105 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-19 07:32:56,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 19 transitions. [2023-11-19 07:32:56,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:32:56,106 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 19 transitions. [2023-11-19 07:32:56,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 19 transitions. [2023-11-19 07:32:56,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-11-19 07:32:56,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.1875) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:32:56,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2023-11-19 07:32:56,112 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 19 transitions. [2023-11-19 07:32:56,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:32:56,115 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2023-11-19 07:32:56,115 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-19 07:32:56,115 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2023-11-19 07:32:56,116 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:32:56,117 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:32:56,117 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:32:56,118 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1] [2023-11-19 07:32:56,118 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:32:56,118 INFO L748 eck$LassoCheckResult]: Stem: 196#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 197#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~nondet3#1, main_#t~post2#1, main_~i~0#1, main_#t~nondet6#1, main_#t~post7#1.base, main_#t~post7#1.offset, main_#t~mem8#1, main_#t~post9#1, main_#t~mem4#1, main_#t~short5#1, main_~p~0#1.base, main_~p~0#1.offset, main_~q~0#1.base, main_~q~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(4192);main_~p~0#1.base, main_~p~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;main_~q~0#1.base, main_~q~0#1.offset := main_~p~0#1.base, main_~p~0#1.offset;main_~i~0#1 := 0; 192#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 193#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 194#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 189#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 190#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 202#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 201#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 200#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 199#L18-3 assume !(main_~i~0#1 < 1048); 195#L18-4 havoc main_~i~0#1;main_~q~0#1.base, main_~q~0#1.offset := main_~p~0#1.base, main_~p~0#1.offset; 191#L23-2 [2023-11-19 07:32:56,118 INFO L750 eck$LassoCheckResult]: Loop: 191#L23-2 assume main_~q~0#1.base == main_~p~0#1.base;main_#t~short5#1 := main_~q~0#1.offset < 4192 + main_~p~0#1.offset; 187#L22-1 assume main_#t~short5#1;call main_#t~mem4#1 := read~int(main_~q~0#1.base, main_~q~0#1.offset, 4);main_#t~short5#1 := main_#t~mem4#1 >= 0; 188#L22-3 assume !!main_#t~short5#1;havoc main_#t~mem4#1;havoc main_#t~short5#1;havoc main_#t~nondet6#1; 198#L23 assume 0 != main_#t~nondet6#1;havoc main_#t~nondet6#1;main_#t~post7#1.base, main_#t~post7#1.offset := main_~q~0#1.base, main_~q~0#1.offset;main_~q~0#1.base, main_~q~0#1.offset := main_#t~post7#1.base, 4 + main_#t~post7#1.offset;havoc main_#t~post7#1.base, main_#t~post7#1.offset; 191#L23-2 [2023-11-19 07:32:56,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:32:56,119 INFO L85 PathProgramCache]: Analyzing trace with hash 833936659, now seen corresponding path program 2 times [2023-11-19 07:32:56,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:32:56,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836482503] [2023-11-19 07:32:56,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:32:56,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:32:56,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:32:56,347 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:32:56,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:32:56,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836482503] [2023-11-19 07:32:56,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836482503] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:32:56,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82793826] [2023-11-19 07:32:56,348 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:32:56,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:32:56,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:32:56,350 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:32:56,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-19 07:32:56,421 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:32:56,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:32:56,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:32:56,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:32:56,460 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:32:56,460 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:32:56,536 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:32:56,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82793826] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:32:56,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:32:56,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-11-19 07:32:56,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091791146] [2023-11-19 07:32:56,538 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:32:56,538 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 07:32:56,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:32:56,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1573223, now seen corresponding path program 3 times [2023-11-19 07:32:56,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:32:56,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414969372] [2023-11-19 07:32:56,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:32:56,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:32:56,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:32:56,545 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:32:56,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:32:56,555 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:32:56,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:32:56,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 07:32:56,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:32:56,716 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 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) [2023-11-19 07:32:56,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:32:56,791 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2023-11-19 07:32:56,791 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 31 transitions. [2023-11-19 07:32:56,792 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:32:56,793 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 28 states and 31 transitions. [2023-11-19 07:32:56,794 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-19 07:32:56,794 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-19 07:32:56,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 31 transitions. [2023-11-19 07:32:56,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:32:56,795 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 31 transitions. [2023-11-19 07:32:56,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 31 transitions. [2023-11-19 07:32:56,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-19 07:32:56,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 27 states have internal predecessors, (31), 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) [2023-11-19 07:32:56,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2023-11-19 07:32:56,799 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 31 transitions. [2023-11-19 07:32:56,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:32:56,800 INFO L428 stractBuchiCegarLoop]: Abstraction has 28 states and 31 transitions. [2023-11-19 07:32:56,800 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-19 07:32:56,800 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 31 transitions. [2023-11-19 07:32:56,801 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:32:56,802 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:32:56,802 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:32:56,803 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1] [2023-11-19 07:32:56,803 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:32:56,803 INFO L748 eck$LassoCheckResult]: Stem: 322#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 323#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~nondet3#1, main_#t~post2#1, main_~i~0#1, main_#t~nondet6#1, main_#t~post7#1.base, main_#t~post7#1.offset, main_#t~mem8#1, main_#t~post9#1, main_#t~mem4#1, main_#t~short5#1, main_~p~0#1.base, main_~p~0#1.offset, main_~q~0#1.base, main_~q~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(4192);main_~p~0#1.base, main_~p~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;main_~q~0#1.base, main_~q~0#1.offset := main_~p~0#1.base, main_~p~0#1.offset;main_~i~0#1 := 0; 318#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 319#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 320#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 315#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 316#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 340#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 339#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 338#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 337#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 336#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 335#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 334#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 333#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 332#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 331#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 330#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 329#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 328#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 327#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 326#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 325#L18-3 assume !(main_~i~0#1 < 1048); 321#L18-4 havoc main_~i~0#1;main_~q~0#1.base, main_~q~0#1.offset := main_~p~0#1.base, main_~p~0#1.offset; 317#L23-2 [2023-11-19 07:32:56,804 INFO L750 eck$LassoCheckResult]: Loop: 317#L23-2 assume main_~q~0#1.base == main_~p~0#1.base;main_#t~short5#1 := main_~q~0#1.offset < 4192 + main_~p~0#1.offset; 313#L22-1 assume main_#t~short5#1;call main_#t~mem4#1 := read~int(main_~q~0#1.base, main_~q~0#1.offset, 4);main_#t~short5#1 := main_#t~mem4#1 >= 0; 314#L22-3 assume !!main_#t~short5#1;havoc main_#t~mem4#1;havoc main_#t~short5#1;havoc main_#t~nondet6#1; 324#L23 assume 0 != main_#t~nondet6#1;havoc main_#t~nondet6#1;main_#t~post7#1.base, main_#t~post7#1.offset := main_~q~0#1.base, main_~q~0#1.offset;main_~q~0#1.base, main_~q~0#1.offset := main_#t~post7#1.base, 4 + main_#t~post7#1.offset;havoc main_#t~post7#1.base, main_#t~post7#1.offset; 317#L23-2 [2023-11-19 07:32:56,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:32:56,804 INFO L85 PathProgramCache]: Analyzing trace with hash 2127272351, now seen corresponding path program 3 times [2023-11-19 07:32:56,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:32:56,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805342672] [2023-11-19 07:32:56,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:32:56,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:32:56,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:32:57,111 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:32:57,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:32:57,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805342672] [2023-11-19 07:32:57,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805342672] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:32:57,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746390294] [2023-11-19 07:32:57,112 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 07:32:57,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:32:57,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:32:57,116 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:32:57,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-19 07:32:57,278 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-19 07:32:57,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:32:57,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 07:32:57,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:32:57,340 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:32:57,340 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:32:57,641 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:32:57,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746390294] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:32:57,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:32:57,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2023-11-19 07:32:57,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632312724] [2023-11-19 07:32:57,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:32:57,642 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 07:32:57,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:32:57,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1573223, now seen corresponding path program 4 times [2023-11-19 07:32:57,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:32:57,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436288221] [2023-11-19 07:32:57,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:32:57,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:32:57,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:32:57,648 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:32:57,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:32:57,652 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:32:57,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:32:57,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-19 07:32:57,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-11-19 07:32:57,757 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. cyclomatic complexity: 5 Second operand has 25 states, 25 states have (on average 1.96) internal successors, (49), 25 states have internal predecessors, (49), 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) [2023-11-19 07:32:57,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:32:57,866 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2023-11-19 07:32:57,866 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 55 transitions. [2023-11-19 07:32:57,868 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:32:57,869 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 52 states and 55 transitions. [2023-11-19 07:32:57,869 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-19 07:32:57,869 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-19 07:32:57,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 55 transitions. [2023-11-19 07:32:57,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:32:57,870 INFO L218 hiAutomatonCegarLoop]: Abstraction has 52 states and 55 transitions. [2023-11-19 07:32:57,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 55 transitions. [2023-11-19 07:32:57,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-19 07:32:57,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.0576923076923077) internal successors, (55), 51 states have internal predecessors, (55), 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) [2023-11-19 07:32:57,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2023-11-19 07:32:57,875 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 55 transitions. [2023-11-19 07:32:57,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-19 07:32:57,876 INFO L428 stractBuchiCegarLoop]: Abstraction has 52 states and 55 transitions. [2023-11-19 07:32:57,876 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-19 07:32:57,876 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 55 transitions. [2023-11-19 07:32:57,881 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:32:57,881 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:32:57,881 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:32:57,883 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [22, 22, 1, 1, 1, 1] [2023-11-19 07:32:57,883 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:32:57,883 INFO L748 eck$LassoCheckResult]: Stem: 569#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 570#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~nondet3#1, main_#t~post2#1, main_~i~0#1, main_#t~nondet6#1, main_#t~post7#1.base, main_#t~post7#1.offset, main_#t~mem8#1, main_#t~post9#1, main_#t~mem4#1, main_#t~short5#1, main_~p~0#1.base, main_~p~0#1.offset, main_~q~0#1.base, main_~q~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(4192);main_~p~0#1.base, main_~p~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;main_~q~0#1.base, main_~q~0#1.offset := main_~p~0#1.base, main_~p~0#1.offset;main_~i~0#1 := 0; 564#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 565#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 566#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 561#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 562#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 610#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 609#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 608#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 607#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 606#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 605#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 604#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 603#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 602#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 601#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 600#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 599#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 598#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 597#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 596#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 595#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 594#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 593#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 592#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 591#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 590#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 589#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 588#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 587#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 586#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 585#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 584#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 583#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 582#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 581#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 580#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 579#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 578#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 577#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 576#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 575#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 574#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 573#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 572#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 571#L18-3 assume !(main_~i~0#1 < 1048); 567#L18-4 havoc main_~i~0#1;main_~q~0#1.base, main_~q~0#1.offset := main_~p~0#1.base, main_~p~0#1.offset; 563#L23-2 [2023-11-19 07:32:57,883 INFO L750 eck$LassoCheckResult]: Loop: 563#L23-2 assume main_~q~0#1.base == main_~p~0#1.base;main_#t~short5#1 := main_~q~0#1.offset < 4192 + main_~p~0#1.offset; 559#L22-1 assume main_#t~short5#1;call main_#t~mem4#1 := read~int(main_~q~0#1.base, main_~q~0#1.offset, 4);main_#t~short5#1 := main_#t~mem4#1 >= 0; 560#L22-3 assume !!main_#t~short5#1;havoc main_#t~mem4#1;havoc main_#t~short5#1;havoc main_#t~nondet6#1; 568#L23 assume 0 != main_#t~nondet6#1;havoc main_#t~nondet6#1;main_#t~post7#1.base, main_#t~post7#1.offset := main_~q~0#1.base, main_~q~0#1.offset;main_~q~0#1.base, main_~q~0#1.offset := main_#t~post7#1.base, 4 + main_#t~post7#1.offset;havoc main_#t~post7#1.base, main_#t~post7#1.offset; 563#L23-2 [2023-11-19 07:32:57,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:32:57,884 INFO L85 PathProgramCache]: Analyzing trace with hash 828161207, now seen corresponding path program 4 times [2023-11-19 07:32:57,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:32:57,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514142161] [2023-11-19 07:32:57,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:32:57,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:32:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:32:58,664 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:32:58,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:32:58,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514142161] [2023-11-19 07:32:58,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514142161] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:32:58,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018072538] [2023-11-19 07:32:58,665 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-19 07:32:58,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:32:58,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:32:58,668 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:32:58,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-19 07:32:58,798 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-19 07:32:58,799 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:32:58,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 07:32:58,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:32:58,924 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:32:58,924 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:32:59,874 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:32:59,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018072538] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:32:59,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:32:59,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2023-11-19 07:32:59,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650409025] [2023-11-19 07:32:59,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:32:59,875 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 07:32:59,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:32:59,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1573223, now seen corresponding path program 5 times [2023-11-19 07:32:59,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:32:59,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340130053] [2023-11-19 07:32:59,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:32:59,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:32:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:32:59,885 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:32:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:32:59,890 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:32:59,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:32:59,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-11-19 07:33:00,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2023-11-19 07:33:00,003 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. cyclomatic complexity: 5 Second operand has 49 states, 49 states have (on average 1.9795918367346939) internal successors, (97), 49 states have internal predecessors, (97), 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) [2023-11-19 07:33:00,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:00,240 INFO L93 Difference]: Finished difference Result 100 states and 103 transitions. [2023-11-19 07:33:00,240 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 100 states and 103 transitions. [2023-11-19 07:33:00,242 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:33:00,244 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 100 states to 100 states and 103 transitions. [2023-11-19 07:33:00,244 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-19 07:33:00,244 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-19 07:33:00,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 100 states and 103 transitions. [2023-11-19 07:33:00,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:33:00,245 INFO L218 hiAutomatonCegarLoop]: Abstraction has 100 states and 103 transitions. [2023-11-19 07:33:00,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states and 103 transitions. [2023-11-19 07:33:00,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2023-11-19 07:33:00,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 100 states have (on average 1.03) internal successors, (103), 99 states have internal predecessors, (103), 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) [2023-11-19 07:33:00,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 103 transitions. [2023-11-19 07:33:00,253 INFO L240 hiAutomatonCegarLoop]: Abstraction has 100 states and 103 transitions. [2023-11-19 07:33:00,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-19 07:33:00,254 INFO L428 stractBuchiCegarLoop]: Abstraction has 100 states and 103 transitions. [2023-11-19 07:33:00,254 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-19 07:33:00,255 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 100 states and 103 transitions. [2023-11-19 07:33:00,256 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:33:00,256 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:33:00,257 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:33:00,260 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [46, 46, 1, 1, 1, 1] [2023-11-19 07:33:00,261 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:33:00,261 INFO L748 eck$LassoCheckResult]: Stem: 1055#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1056#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~nondet3#1, main_#t~post2#1, main_~i~0#1, main_#t~nondet6#1, main_#t~post7#1.base, main_#t~post7#1.offset, main_#t~mem8#1, main_#t~post9#1, main_#t~mem4#1, main_#t~short5#1, main_~p~0#1.base, main_~p~0#1.offset, main_~q~0#1.base, main_~q~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(4192);main_~p~0#1.base, main_~p~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;main_~q~0#1.base, main_~q~0#1.offset := main_~p~0#1.base, main_~p~0#1.offset;main_~i~0#1 := 0; 1050#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1051#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1052#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1047#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1048#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1144#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1143#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1142#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1141#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1140#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1139#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1138#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1137#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1136#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1135#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1134#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1133#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1132#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1131#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1130#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1129#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1128#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1127#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1126#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1125#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1124#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1123#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1122#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1121#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1120#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1119#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1118#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1117#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1116#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1115#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1114#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1113#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1112#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1111#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1110#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1109#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1108#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1107#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1106#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1105#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1104#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1103#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1102#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1101#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1100#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1099#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1098#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1097#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1096#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1095#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1094#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1093#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1092#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1091#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1090#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1089#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1088#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1087#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1086#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1085#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1084#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1083#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1082#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1081#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1080#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1079#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1078#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1077#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1076#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1075#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1074#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1073#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1072#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1071#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1070#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1069#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1068#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1067#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1066#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1065#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1064#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1063#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1062#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1061#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1060#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1059#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1058#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1057#L18-3 assume !(main_~i~0#1 < 1048); 1053#L18-4 havoc main_~i~0#1;main_~q~0#1.base, main_~q~0#1.offset := main_~p~0#1.base, main_~p~0#1.offset; 1049#L23-2 [2023-11-19 07:33:00,262 INFO L750 eck$LassoCheckResult]: Loop: 1049#L23-2 assume main_~q~0#1.base == main_~p~0#1.base;main_#t~short5#1 := main_~q~0#1.offset < 4192 + main_~p~0#1.offset; 1045#L22-1 assume main_#t~short5#1;call main_#t~mem4#1 := read~int(main_~q~0#1.base, main_~q~0#1.offset, 4);main_#t~short5#1 := main_#t~mem4#1 >= 0; 1046#L22-3 assume !!main_#t~short5#1;havoc main_#t~mem4#1;havoc main_#t~short5#1;havoc main_#t~nondet6#1; 1054#L23 assume 0 != main_#t~nondet6#1;havoc main_#t~nondet6#1;main_#t~post7#1.base, main_#t~post7#1.offset := main_~q~0#1.base, main_~q~0#1.offset;main_~q~0#1.base, main_~q~0#1.offset := main_#t~post7#1.base, 4 + main_#t~post7#1.offset;havoc main_#t~post7#1.base, main_#t~post7#1.offset; 1049#L23-2 [2023-11-19 07:33:00,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:00,262 INFO L85 PathProgramCache]: Analyzing trace with hash 830581479, now seen corresponding path program 5 times [2023-11-19 07:33:00,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:00,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894552862] [2023-11-19 07:33:00,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:00,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:03,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:33:03,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:03,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894552862] [2023-11-19 07:33:03,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894552862] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:33:03,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118730066] [2023-11-19 07:33:03,033 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-19 07:33:03,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:03,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:03,036 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:33:03,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-19 07:33:28,079 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-11-19 07:33:28,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:33:28,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-19 07:33:28,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:33:28,345 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:33:28,345 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:33:31,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:33:31,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118730066] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:33:31,758 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:33:31,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 97 [2023-11-19 07:33:31,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223290492] [2023-11-19 07:33:31,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:33:31,764 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 07:33:31,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:31,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1573223, now seen corresponding path program 6 times [2023-11-19 07:33:31,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:31,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350085183] [2023-11-19 07:33:31,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:31,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:33:31,778 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:33:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:33:31,784 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:33:31,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:31,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2023-11-19 07:33:31,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2023-11-19 07:33:31,883 INFO L87 Difference]: Start difference. First operand 100 states and 103 transitions. cyclomatic complexity: 5 Second operand has 97 states, 97 states have (on average 1.9896907216494846) internal successors, (193), 97 states have internal predecessors, (193), 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) [2023-11-19 07:33:32,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:32,332 INFO L93 Difference]: Finished difference Result 196 states and 199 transitions. [2023-11-19 07:33:32,333 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 196 states and 199 transitions. [2023-11-19 07:33:32,337 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:33:32,343 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 196 states to 196 states and 199 transitions. [2023-11-19 07:33:32,343 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-19 07:33:32,343 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-19 07:33:32,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 196 states and 199 transitions. [2023-11-19 07:33:32,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:33:32,350 INFO L218 hiAutomatonCegarLoop]: Abstraction has 196 states and 199 transitions. [2023-11-19 07:33:32,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states and 199 transitions. [2023-11-19 07:33:32,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2023-11-19 07:33:32,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 196 states have (on average 1.0153061224489797) internal successors, (199), 195 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) [2023-11-19 07:33:32,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 199 transitions. [2023-11-19 07:33:32,371 INFO L240 hiAutomatonCegarLoop]: Abstraction has 196 states and 199 transitions. [2023-11-19 07:33:32,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-11-19 07:33:32,373 INFO L428 stractBuchiCegarLoop]: Abstraction has 196 states and 199 transitions. [2023-11-19 07:33:32,373 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-19 07:33:32,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 196 states and 199 transitions. [2023-11-19 07:33:32,376 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:33:32,376 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:33:32,376 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:33:32,387 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [94, 94, 1, 1, 1, 1] [2023-11-19 07:33:32,390 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:33:32,390 INFO L748 eck$LassoCheckResult]: Stem: 2020#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 2021#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~nondet3#1, main_#t~post2#1, main_~i~0#1, main_#t~nondet6#1, main_#t~post7#1.base, main_#t~post7#1.offset, main_#t~mem8#1, main_#t~post9#1, main_#t~mem4#1, main_#t~short5#1, main_~p~0#1.base, main_~p~0#1.offset, main_~q~0#1.base, main_~q~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(4192);main_~p~0#1.base, main_~p~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;main_~q~0#1.base, main_~q~0#1.offset := main_~p~0#1.base, main_~p~0#1.offset;main_~i~0#1 := 0; 2016#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2017#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2018#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2013#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2014#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2206#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2205#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2204#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2203#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2202#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2201#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2200#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2199#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2198#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2197#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2196#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2195#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2194#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2193#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2192#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2191#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2190#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2189#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2188#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2187#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2186#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2185#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2184#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2183#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2182#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2181#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2180#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2179#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2178#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2177#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2176#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2175#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2174#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2173#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2172#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2171#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2170#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2169#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2168#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2167#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2166#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2165#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2164#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2163#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2162#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2161#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2160#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2159#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2158#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2157#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2156#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2155#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2154#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2153#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2152#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2151#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2150#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2149#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2148#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2147#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2146#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2145#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2144#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2143#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2142#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2141#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2140#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2139#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2138#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2137#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2136#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2135#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2134#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2133#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2132#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2131#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2130#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2129#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2128#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2127#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2126#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2125#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2124#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2123#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2122#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2121#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2120#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2119#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2118#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2117#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2116#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2115#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2114#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2113#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2112#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2111#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2110#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2109#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2108#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2107#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2106#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2105#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2104#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2103#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2102#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2101#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2100#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2099#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2098#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2097#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2096#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2095#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2094#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2093#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2092#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2091#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2090#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2089#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2088#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2087#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2086#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2085#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2084#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2083#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2082#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2081#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2080#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2079#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2078#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2077#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2076#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2075#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2074#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2073#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2072#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2071#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2070#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2069#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2068#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2067#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2066#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2065#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2064#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2063#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2062#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2061#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2060#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2059#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2058#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2057#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2056#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2055#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2054#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2053#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2052#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2051#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2050#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2049#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2048#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2047#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2046#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2045#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2044#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2043#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2042#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2041#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2040#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2039#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2038#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2037#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2036#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2035#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2034#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2033#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2032#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2031#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2030#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2029#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2028#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2027#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2026#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2025#L18-3 assume !!(main_~i~0#1 < 1048);havoc main_#t~nondet3#1;call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 2024#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 2023#L18-3 assume !(main_~i~0#1 < 1048); 2019#L18-4 havoc main_~i~0#1;main_~q~0#1.base, main_~q~0#1.offset := main_~p~0#1.base, main_~p~0#1.offset; 2015#L23-2 [2023-11-19 07:33:32,394 INFO L750 eck$LassoCheckResult]: Loop: 2015#L23-2 assume main_~q~0#1.base == main_~p~0#1.base;main_#t~short5#1 := main_~q~0#1.offset < 4192 + main_~p~0#1.offset; 2011#L22-1 assume main_#t~short5#1;call main_#t~mem4#1 := read~int(main_~q~0#1.base, main_~q~0#1.offset, 4);main_#t~short5#1 := main_#t~mem4#1 >= 0; 2012#L22-3 assume !!main_#t~short5#1;havoc main_#t~mem4#1;havoc main_#t~short5#1;havoc main_#t~nondet6#1; 2022#L23 assume 0 != main_#t~nondet6#1;havoc main_#t~nondet6#1;main_#t~post7#1.base, main_#t~post7#1.offset := main_~q~0#1.base, main_~q~0#1.offset;main_~q~0#1.base, main_~q~0#1.offset := main_#t~post7#1.base, 4 + main_#t~post7#1.offset;havoc main_#t~post7#1.base, main_#t~post7#1.offset; 2015#L23-2 [2023-11-19 07:33:32,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:32,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1165371207, now seen corresponding path program 6 times [2023-11-19 07:33:32,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:32,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451826991] [2023-11-19 07:33:32,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:32,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:32,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:40,459 INFO L134 CoverageAnalysis]: Checked inductivity of 8836 backedges. 0 proven. 8836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:33:40,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:40,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451826991] [2023-11-19 07:33:40,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451826991] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:33:40,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469011678] [2023-11-19 07:33:40,460 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-19 07:33:40,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:40,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:40,462 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:33:40,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d643ee34-c61f-4640-87ee-7da5edc4aa70/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process