./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 dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/LexIndexValue-Pointer-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1bedc761cea545b8144ad4138a379d7139cc98703c76e9b536a2e7389d5b6a10 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:40:16,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:40:16,098 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:40:16,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:40:16,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:40:16,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:40:16,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:40:16,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:40:16,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:40:16,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:40:16,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:40:16,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:40:16,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:40:16,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:40:16,190 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:40:16,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:40:16,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:40:16,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:40:16,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:40:16,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:40:16,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:40:16,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:40:16,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:40:16,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:40:16,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:40:16,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:40:16,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:40:16,231 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:40:16,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:40:16,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:40:16,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:40:16,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:40:16,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:40:16,239 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:40:16,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:40:16,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:40:16,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:40:16,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:40:16,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:40:16,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:40:16,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:40:16,246 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-10-17 10:40:16,296 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:40:16,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:40:16,297 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:40:16,297 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:40:16,298 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:40:16,299 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:40:16,299 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:40:16,299 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 10:40:16,299 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 10:40:16,300 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 10:40:16,301 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 10:40:16,301 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 10:40:16,302 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 10:40:16,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:40:16,302 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:40:16,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:40:16,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:40:16,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 10:40:16,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 10:40:16,303 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 10:40:16,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:40:16,304 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 10:40:16,304 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:40:16,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 10:40:16,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:40:16,306 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:40:16,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:40:16,307 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:40:16,309 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 10:40:16,309 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1bedc761cea545b8144ad4138a379d7139cc98703c76e9b536a2e7389d5b6a10 [2022-10-17 10:40:16,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:40:16,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:40:16,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:40:16,667 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:40:16,668 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:40:16,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/termination-crafted/LexIndexValue-Pointer-2.c [2022-10-17 10:40:16,762 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/data/db1ef9648/3bcbcce3468b412da28ab4433a1e927e/FLAGbfa43add0 [2022-10-17 10:40:17,289 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:40:17,289 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/sv-benchmarks/c/termination-crafted/LexIndexValue-Pointer-2.c [2022-10-17 10:40:17,294 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/data/db1ef9648/3bcbcce3468b412da28ab4433a1e927e/FLAGbfa43add0 [2022-10-17 10:40:17,655 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/data/db1ef9648/3bcbcce3468b412da28ab4433a1e927e [2022-10-17 10:40:17,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:40:17,660 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:40:17,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:40:17,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:40:17,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:40:17,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:40:17" (1/1) ... [2022-10-17 10:40:17,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c6e078b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:17, skipping insertion in model container [2022-10-17 10:40:17,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:40:17" (1/1) ... [2022-10-17 10:40:17,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:40:17,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:40:17,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:40:17,906 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:40:17,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:40:17,938 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:40:17,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:17 WrapperNode [2022-10-17 10:40:17,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:40:17,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:40:17,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:40:17,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:40:17,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:17" (1/1) ... [2022-10-17 10:40:17,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:17" (1/1) ... [2022-10-17 10:40:17,979 INFO L138 Inliner]: procedures = 10, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 47 [2022-10-17 10:40:17,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:40:17,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:40:17,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:40:17,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:40:17,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:17" (1/1) ... [2022-10-17 10:40:17,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:17" (1/1) ... [2022-10-17 10:40:17,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:17" (1/1) ... [2022-10-17 10:40:17,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:17" (1/1) ... [2022-10-17 10:40:17,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:17" (1/1) ... [2022-10-17 10:40:18,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:17" (1/1) ... [2022-10-17 10:40:18,003 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:17" (1/1) ... [2022-10-17 10:40:18,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:17" (1/1) ... [2022-10-17 10:40:18,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:40:18,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:40:18,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:40:18,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:40:18,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:17" (1/1) ... [2022-10-17 10:40:18,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:40:18,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:40:18,042 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:40:18,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 10:40:18,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:40:18,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:40:18,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:40:18,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:40:18,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:40:18,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:40:18,186 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:40:18,188 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:40:18,420 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:40:18,426 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:40:18,426 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 10:40:18,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:40:18 BoogieIcfgContainer [2022-10-17 10:40:18,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:40:18,430 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 10:40:18,430 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 10:40:18,437 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 10:40:18,438 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:40:18,438 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 10:40:17" (1/3) ... [2022-10-17 10:40:18,439 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2471e6d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:40:18, skipping insertion in model container [2022-10-17 10:40:18,439 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:40:18,440 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:17" (2/3) ... [2022-10-17 10:40:18,441 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2471e6d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:40:18, skipping insertion in model container [2022-10-17 10:40:18,441 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:40:18,441 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:40:18" (3/3) ... [2022-10-17 10:40:18,442 INFO L332 chiAutomizerObserver]: Analyzing ICFG LexIndexValue-Pointer-2.c [2022-10-17 10:40:18,531 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 10:40:18,531 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 10:40:18,531 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 10:40:18,531 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 10:40:18,532 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 10:40:18,532 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 10:40:18,532 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 10:40:18,532 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 10:40:18,537 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) [2022-10-17 10:40:18,557 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-10-17 10:40:18,558 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:40:18,558 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:40:18,564 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:40:18,564 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:40:18,565 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 10:40:18,565 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) [2022-10-17 10:40:18,567 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-10-17 10:40:18,567 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:40:18,567 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:40:18,568 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:40:18,568 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:40:18,576 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 7#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; 10#L18-3true [2022-10-17 10:40:18,577 INFO L750 eck$LassoCheckResult]: Loop: 10#L18-3true assume !!(main_~i~0#1 < 1048);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; 8#L18-2true main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 10#L18-3true [2022-10-17 10:40:18,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:18,584 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-10-17 10:40:18,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:18,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400091389] [2022-10-17 10:40:18,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:18,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:40:18,725 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:40:18,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:40:18,755 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:40:18,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:18,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2022-10-17 10:40:18,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:18,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802965984] [2022-10-17 10:40:18,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:18,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:40:18,776 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:40:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:40:18,787 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:40:18,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:18,790 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2022-10-17 10:40:18,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:18,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045316394] [2022-10-17 10:40:18,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:18,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:40:18,821 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:40:18,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:40:18,844 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:40:19,154 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:40:19,154 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:40:19,155 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:40:19,155 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:40:19,155 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:40:19,155 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:40:19,156 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:40:19,156 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:40:19,156 INFO L133 ssoRankerPreferences]: Filename of dumped script: LexIndexValue-Pointer-2.c_Iteration1_Lasso [2022-10-17 10:40:19,156 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:40:19,157 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:40:19,187 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:40:19,204 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:40:19,211 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:40:19,216 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:40:19,223 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:40:19,460 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:40:19,463 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:40:19,466 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:40:19,470 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:40:19,474 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:40:19,480 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:40:19,485 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:40:19,489 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:40:19,492 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:40:19,800 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:40:19,805 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:40:19,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:40:19,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:40:19,810 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:40:19,823 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 [2022-10-17 10:40:19,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:40:19,834 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:40:19,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:40:19,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:40:19,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:40:19,838 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:40:19,838 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:40:19,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-10-17 10:40:19,853 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:40:19,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:40:19,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:40:19,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:40:19,890 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:40:19,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-10-17 10:40:19,893 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 [2022-10-17 10:40:19,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:40:19,902 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:40:19,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:40:19,902 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:40:19,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:40:19,904 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:40:19,904 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:40:19,920 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:40:19,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:40:19,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:40:19,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:40:19,944 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:40:19,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-10-17 10:40:19,953 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 [2022-10-17 10:40:19,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:40:19,963 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:40:19,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:40:19,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:40:19,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:40:19,965 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:40:19,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:40:19,980 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:40:20,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-10-17 10:40:20,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:40:20,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:40:20,017 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:40:20,025 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 [2022-10-17 10:40:20,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-10-17 10:40:20,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:40:20,036 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:40:20,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:40:20,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:40:20,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:40:20,037 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:40:20,037 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:40:20,050 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:40:20,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:40:20,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:40:20,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:40:20,089 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:40:20,096 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 [2022-10-17 10:40:20,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:40:20,106 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:40:20,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:40:20,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:40:20,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:40:20,108 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:40:20,108 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:40:20,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-10-17 10:40:20,124 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:40:20,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:40:20,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:40:20,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:40:20,166 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:40:20,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-10-17 10:40:20,170 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 [2022-10-17 10:40:20,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:40:20,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:40:20,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:40:20,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:40:20,192 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:40:20,192 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:40:20,220 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:40:20,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-10-17 10:40:20,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:40:20,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:40:20,264 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:40:20,271 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 [2022-10-17 10:40:20,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:40:20,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:40:20,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:40:20,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:40:20,291 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:40:20,291 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:40:20,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-10-17 10:40:20,312 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:40:20,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-10-17 10:40:20,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:40:20,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:40:20,357 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:40:20,363 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 [2022-10-17 10:40:20,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:40:20,373 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2022-10-17 10:40:20,373 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:40:20,373 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:40:20,383 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2022-10-17 10:40:20,383 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:40:20,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-10-17 10:40:20,416 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:40:20,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-10-17 10:40:20,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:40:20,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:40:20,454 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:40:20,460 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 [2022-10-17 10:40:20,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:40:20,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:40:20,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:40:20,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:40:20,479 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:40:20,479 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:40:20,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-10-17 10:40:20,504 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:40:20,555 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2022-10-17 10:40:20,555 INFO L444 ModelExtractionUtils]: 5 out of 19 variables were initially zero. Simplification set additionally 11 variables to zero. [2022-10-17 10:40:20,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:40:20,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:40:20,561 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:40:20,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-10-17 10:40:20,600 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:40:20,633 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-10-17 10:40:20,633 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:40:20,634 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 [] [2022-10-17 10:40:20,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-10-17 10:40:20,689 INFO L156 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2022-10-17 10:40:20,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:20,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:20,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:40:20,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:40:20,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:20,793 WARN L261 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:40:20,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:40:20,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:20,913 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 [2022-10-17 10:40:20,916 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) [2022-10-17 10:40:21,047 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 33 states and 48 transitions. Complement of second has 7 states. [2022-10-17 10:40:21,053 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 [2022-10-17 10:40:21,059 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) [2022-10-17 10:40:21,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2022-10-17 10:40:21,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 2 letters. Loop has 2 letters. [2022-10-17 10:40:21,064 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:40:21,064 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 4 letters. Loop has 2 letters. [2022-10-17 10:40:21,065 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:40:21,065 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 2 letters. Loop has 4 letters. [2022-10-17 10:40:21,065 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:40:21,066 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 48 transitions. [2022-10-17 10:40:21,079 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-10-17 10:40:21,093 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 10 states and 14 transitions. [2022-10-17 10:40:21,094 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-10-17 10:40:21,095 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-10-17 10:40:21,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2022-10-17 10:40:21,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:40:21,096 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2022-10-17 10:40:21,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2022-10-17 10:40:21,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-10-17 10:40:21,127 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) [2022-10-17 10:40:21,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 14 transitions. [2022-10-17 10:40:21,130 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2022-10-17 10:40:21,130 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2022-10-17 10:40:21,130 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-10-17 10:40:21,130 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 14 transitions. [2022-10-17 10:40:21,133 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-10-17 10:40:21,133 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:40:21,133 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:40:21,133 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-10-17 10:40:21,134 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-10-17 10:40:21,134 INFO L748 eck$LassoCheckResult]: Stem: 103#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 104#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; 109#L18-3 assume !(main_~i~0#1 < 1048); 108#L18-4 main_~q~0#1.base, main_~q~0#1.offset := main_~p~0#1.base, main_~p~0#1.offset; 107#L23-2 [2022-10-17 10:40:21,135 INFO L750 eck$LassoCheckResult]: Loop: 107#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; 101#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; 102#L22-3 assume !!main_#t~short5#1;havoc main_#t~mem4#1;havoc main_#t~short5#1; 110#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; 107#L23-2 [2022-10-17 10:40:21,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:21,138 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2022-10-17 10:40:21,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:21,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479839872] [2022-10-17 10:40:21,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:21,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:21,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:21,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:21,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:40:21,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479839872] [2022-10-17 10:40:21,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479839872] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:40:21,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:40:21,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:40:21,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955701967] [2022-10-17 10:40:21,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:40:21,276 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:40:21,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:21,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1573223, now seen corresponding path program 1 times [2022-10-17 10:40:21,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:21,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344474882] [2022-10-17 10:40:21,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:21,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:40:21,286 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:40:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:40:21,298 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:40:21,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:40:21,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:40:21,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:40:21,425 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) [2022-10-17 10:40:21,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:40:21,439 INFO L93 Difference]: Finished difference Result 11 states and 14 transitions. [2022-10-17 10:40:21,439 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2022-10-17 10:40:21,443 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-10-17 10:40:21,444 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 14 transitions. [2022-10-17 10:40:21,444 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-10-17 10:40:21,444 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-10-17 10:40:21,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2022-10-17 10:40:21,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:40:21,445 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-10-17 10:40:21,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2022-10-17 10:40:21,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2022-10-17 10:40:21,447 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) [2022-10-17 10:40:21,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2022-10-17 10:40:21,449 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-10-17 10:40:21,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:40:21,450 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-10-17 10:40:21,451 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-10-17 10:40:21,451 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2022-10-17 10:40:21,452 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-10-17 10:40:21,452 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:40:21,452 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:40:21,453 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-10-17 10:40:21,453 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-10-17 10:40:21,453 INFO L748 eck$LassoCheckResult]: Stem: 128#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 129#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~nondet3#1, main_#t~post2#1, main_~i~0#1, main_#t~nondet6#1, main_#t~post7#1.base, main_#t~post7#1.offset, main_#t~mem8#1, main_#t~post9#1, main_#t~mem4#1, main_#t~short5#1, main_~p~0#1.base, main_~p~0#1.offset, main_~q~0#1.base, main_~q~0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnHeap(4192);main_~p~0#1.base, main_~p~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;havoc main_#t~malloc1#1.base, main_#t~malloc1#1.offset;main_~q~0#1.base, main_~q~0#1.offset := main_~p~0#1.base, main_~p~0#1.offset;main_~i~0#1 := 0; 135#L18-3 assume !!(main_~i~0#1 < 1048);call write~int(main_#t~nondet3#1, main_~q~0#1.base, main_~q~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 132#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 133#L18-3 assume !(main_~i~0#1 < 1048); 136#L18-4 main_~q~0#1.base, main_~q~0#1.offset := main_~p~0#1.base, main_~p~0#1.offset; 134#L23-2 [2022-10-17 10:40:21,453 INFO L750 eck$LassoCheckResult]: Loop: 134#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; 130#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; 131#L22-3 assume !!main_#t~short5#1;havoc main_#t~mem4#1;havoc main_#t~short5#1; 137#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; 134#L23-2 [2022-10-17 10:40:21,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:21,454 INFO L85 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2022-10-17 10:40:21,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:21,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981895571] [2022-10-17 10:40:21,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:21,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:21,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:21,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:40:21,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981895571] [2022-10-17 10:40:21,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981895571] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:40:21,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287431400] [2022-10-17 10:40:21,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:21,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:40:21,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:40:21,540 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:40:21,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-17 10:40:21,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:21,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:40:21,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:40:21,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:21,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:40:21,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:21,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287431400] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:40:21,633 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:40:21,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-17 10:40:21,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114025221] [2022-10-17 10:40:21,634 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:40:21,634 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:40:21,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:21,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1573223, now seen corresponding path program 2 times [2022-10-17 10:40:21,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:21,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704287569] [2022-10-17 10:40:21,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:21,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:40:21,652 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:40:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:40:21,667 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:40:21,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:40:21,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:40:21,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:40:21,794 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) [2022-10-17 10:40:21,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:40:21,834 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2022-10-17 10:40:21,835 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2022-10-17 10:40:21,838 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-10-17 10:40:21,839 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 19 transitions. [2022-10-17 10:40:21,839 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-10-17 10:40:21,841 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-10-17 10:40:21,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 19 transitions. [2022-10-17 10:40:21,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:40:21,842 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-10-17 10:40:21,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 19 transitions. [2022-10-17 10:40:21,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-10-17 10:40:21,844 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) [2022-10-17 10:40:21,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2022-10-17 10:40:21,846 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-10-17 10:40:21,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:40:21,849 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-10-17 10:40:21,849 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-10-17 10:40:21,849 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2022-10-17 10:40:21,851 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-10-17 10:40:21,851 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:40:21,851 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:40:21,852 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1] [2022-10-17 10:40:21,853 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-10-17 10:40:21,853 INFO L748 eck$LassoCheckResult]: Stem: 194#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 195#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; 201#L18-3 assume !!(main_~i~0#1 < 1048);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; 203#L18-3 assume !!(main_~i~0#1 < 1048);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; 198#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);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; 209#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 208#L18-3 assume !!(main_~i~0#1 < 1048);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; 207#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 206#L18-3 assume !(main_~i~0#1 < 1048); 204#L18-4 main_~q~0#1.base, main_~q~0#1.offset := main_~p~0#1.base, main_~p~0#1.offset; 200#L23-2 [2022-10-17 10:40:21,853 INFO L750 eck$LassoCheckResult]: Loop: 200#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; 196#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; 197#L22-3 assume !!main_#t~short5#1;havoc main_#t~mem4#1;havoc main_#t~short5#1; 205#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; 200#L23-2 [2022-10-17 10:40:21,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:21,854 INFO L85 PathProgramCache]: Analyzing trace with hash 833936659, now seen corresponding path program 2 times [2022-10-17 10:40:21,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:21,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134114072] [2022-10-17 10:40:21,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:21,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:21,995 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:21,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:40:21,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134114072] [2022-10-17 10:40:21,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134114072] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:40:21,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062389101] [2022-10-17 10:40:21,996 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:40:21,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:40:21,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:40:22,005 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:40:22,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-17 10:40:22,071 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-17 10:40:22,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:40:22,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 10:40:22,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:40:22,112 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:22,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:40:22,190 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:22,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062389101] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:40:22,191 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:40:22,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-10-17 10:40:22,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615830378] [2022-10-17 10:40:22,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:40:22,192 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:40:22,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:22,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1573223, now seen corresponding path program 3 times [2022-10-17 10:40:22,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:22,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487783892] [2022-10-17 10:40:22,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:22,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:22,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:40:22,200 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:40:22,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:40:22,215 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:40:22,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:40:22,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-17 10:40:22,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-10-17 10:40:22,358 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) [2022-10-17 10:40:22,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-10-17 10:40:22,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:40:22,420 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-10-17 10:40:22,420 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 31 transitions. [2022-10-17 10:40:22,421 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-10-17 10:40:22,422 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 28 states and 31 transitions. [2022-10-17 10:40:22,422 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-10-17 10:40:22,422 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-10-17 10:40:22,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 31 transitions. [2022-10-17 10:40:22,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:40:22,423 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 31 transitions. [2022-10-17 10:40:22,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 31 transitions. [2022-10-17 10:40:22,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-10-17 10:40:22,425 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) [2022-10-17 10:40:22,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2022-10-17 10:40:22,426 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 31 transitions. [2022-10-17 10:40:22,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-17 10:40:22,428 INFO L428 stractBuchiCegarLoop]: Abstraction has 28 states and 31 transitions. [2022-10-17 10:40:22,428 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-10-17 10:40:22,428 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 31 transitions. [2022-10-17 10:40:22,429 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-10-17 10:40:22,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:40:22,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:40:22,430 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1] [2022-10-17 10:40:22,430 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-10-17 10:40:22,430 INFO L748 eck$LassoCheckResult]: Stem: 320#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 321#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; 327#L18-3 assume !!(main_~i~0#1 < 1048);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; 329#L18-3 assume !!(main_~i~0#1 < 1048);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; 324#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);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; 347#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 346#L18-3 assume !!(main_~i~0#1 < 1048);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; 345#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 344#L18-3 assume !!(main_~i~0#1 < 1048);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; 343#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 342#L18-3 assume !!(main_~i~0#1 < 1048);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; 341#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 340#L18-3 assume !!(main_~i~0#1 < 1048);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; 339#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 338#L18-3 assume !!(main_~i~0#1 < 1048);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; 337#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 336#L18-3 assume !!(main_~i~0#1 < 1048);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; 335#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 334#L18-3 assume !!(main_~i~0#1 < 1048);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; 333#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 332#L18-3 assume !(main_~i~0#1 < 1048); 330#L18-4 main_~q~0#1.base, main_~q~0#1.offset := main_~p~0#1.base, main_~p~0#1.offset; 326#L23-2 [2022-10-17 10:40:22,430 INFO L750 eck$LassoCheckResult]: Loop: 326#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; 322#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; 323#L22-3 assume !!main_#t~short5#1;havoc main_#t~mem4#1;havoc main_#t~short5#1; 331#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; 326#L23-2 [2022-10-17 10:40:22,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:22,431 INFO L85 PathProgramCache]: Analyzing trace with hash 2127272351, now seen corresponding path program 3 times [2022-10-17 10:40:22,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:22,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877636696] [2022-10-17 10:40:22,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:22,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:22,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:22,812 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:22,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:40:22,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877636696] [2022-10-17 10:40:22,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877636696] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:40:22,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673134724] [2022-10-17 10:40:22,813 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-17 10:40:22,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:40:22,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:40:22,814 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:40:22,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-17 10:40:22,931 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-10-17 10:40:22,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:40:22,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-17 10:40:22,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:40:22,994 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:22,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:40:23,242 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:23,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673134724] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:40:23,242 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:40:23,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-10-17 10:40:23,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715496648] [2022-10-17 10:40:23,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:40:23,243 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:40:23,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:23,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1573223, now seen corresponding path program 4 times [2022-10-17 10:40:23,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:23,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180384056] [2022-10-17 10:40:23,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:23,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:40:23,249 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:40:23,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:40:23,254 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:40:23,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:40:23,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-17 10:40:23,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-10-17 10:40:23,362 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) [2022-10-17 10:40:23,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:40:23,456 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2022-10-17 10:40:23,456 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 55 transitions. [2022-10-17 10:40:23,457 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-10-17 10:40:23,458 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 52 states and 55 transitions. [2022-10-17 10:40:23,458 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-10-17 10:40:23,459 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-10-17 10:40:23,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 55 transitions. [2022-10-17 10:40:23,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:40:23,459 INFO L218 hiAutomatonCegarLoop]: Abstraction has 52 states and 55 transitions. [2022-10-17 10:40:23,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 55 transitions. [2022-10-17 10:40:23,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-10-17 10:40:23,463 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) [2022-10-17 10:40:23,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2022-10-17 10:40:23,465 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 55 transitions. [2022-10-17 10:40:23,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-17 10:40:23,466 INFO L428 stractBuchiCegarLoop]: Abstraction has 52 states and 55 transitions. [2022-10-17 10:40:23,466 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-10-17 10:40:23,466 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 55 transitions. [2022-10-17 10:40:23,467 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-10-17 10:40:23,467 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:40:23,468 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:40:23,469 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [22, 22, 1, 1, 1, 1] [2022-10-17 10:40:23,469 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-10-17 10:40:23,470 INFO L748 eck$LassoCheckResult]: Stem: 566#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 567#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; 573#L18-3 assume !!(main_~i~0#1 < 1048);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; 575#L18-3 assume !!(main_~i~0#1 < 1048);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; 570#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);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; 617#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 616#L18-3 assume !!(main_~i~0#1 < 1048);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; 615#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 614#L18-3 assume !!(main_~i~0#1 < 1048);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; 613#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 612#L18-3 assume !!(main_~i~0#1 < 1048);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; 611#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 610#L18-3 assume !!(main_~i~0#1 < 1048);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; 609#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 608#L18-3 assume !!(main_~i~0#1 < 1048);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; 607#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 606#L18-3 assume !!(main_~i~0#1 < 1048);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; 605#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 604#L18-3 assume !!(main_~i~0#1 < 1048);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; 603#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 602#L18-3 assume !!(main_~i~0#1 < 1048);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; 601#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 600#L18-3 assume !!(main_~i~0#1 < 1048);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; 599#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 598#L18-3 assume !!(main_~i~0#1 < 1048);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; 597#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 596#L18-3 assume !!(main_~i~0#1 < 1048);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; 595#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 594#L18-3 assume !!(main_~i~0#1 < 1048);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; 593#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 592#L18-3 assume !!(main_~i~0#1 < 1048);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; 591#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 590#L18-3 assume !!(main_~i~0#1 < 1048);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; 589#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 588#L18-3 assume !!(main_~i~0#1 < 1048);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; 587#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 586#L18-3 assume !!(main_~i~0#1 < 1048);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; 585#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 584#L18-3 assume !!(main_~i~0#1 < 1048);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; 583#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 582#L18-3 assume !!(main_~i~0#1 < 1048);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; 581#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 580#L18-3 assume !!(main_~i~0#1 < 1048);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; 579#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 578#L18-3 assume !(main_~i~0#1 < 1048); 576#L18-4 main_~q~0#1.base, main_~q~0#1.offset := main_~p~0#1.base, main_~p~0#1.offset; 572#L23-2 [2022-10-17 10:40:23,470 INFO L750 eck$LassoCheckResult]: Loop: 572#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; 568#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; 569#L22-3 assume !!main_#t~short5#1;havoc main_#t~mem4#1;havoc main_#t~short5#1; 577#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; 572#L23-2 [2022-10-17 10:40:23,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:23,470 INFO L85 PathProgramCache]: Analyzing trace with hash 828161207, now seen corresponding path program 4 times [2022-10-17 10:40:23,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:23,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201387242] [2022-10-17 10:40:23,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:23,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:24,226 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:24,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:40:24,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201387242] [2022-10-17 10:40:24,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201387242] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:40:24,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782760165] [2022-10-17 10:40:24,226 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-17 10:40:24,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:40:24,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:40:24,229 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:40:24,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-17 10:40:24,334 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-17 10:40:24,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:40:24,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-17 10:40:24,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:40:24,461 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:24,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:40:25,364 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:25,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782760165] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:40:25,364 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:40:25,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2022-10-17 10:40:25,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957821043] [2022-10-17 10:40:25,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:40:25,365 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:40:25,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:25,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1573223, now seen corresponding path program 5 times [2022-10-17 10:40:25,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:25,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441723042] [2022-10-17 10:40:25,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:25,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:25,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:40:25,371 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:40:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:40:25,383 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:40:25,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:40:25,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-10-17 10:40:25,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-10-17 10:40:25,510 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) [2022-10-17 10:40:25,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:40:25,761 INFO L93 Difference]: Finished difference Result 100 states and 103 transitions. [2022-10-17 10:40:25,761 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 100 states and 103 transitions. [2022-10-17 10:40:25,769 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-10-17 10:40:25,771 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 100 states to 100 states and 103 transitions. [2022-10-17 10:40:25,771 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-10-17 10:40:25,772 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-10-17 10:40:25,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 100 states and 103 transitions. [2022-10-17 10:40:25,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:40:25,775 INFO L218 hiAutomatonCegarLoop]: Abstraction has 100 states and 103 transitions. [2022-10-17 10:40:25,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states and 103 transitions. [2022-10-17 10:40:25,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2022-10-17 10:40:25,786 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) [2022-10-17 10:40:25,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 103 transitions. [2022-10-17 10:40:25,792 INFO L240 hiAutomatonCegarLoop]: Abstraction has 100 states and 103 transitions. [2022-10-17 10:40:25,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-17 10:40:25,793 INFO L428 stractBuchiCegarLoop]: Abstraction has 100 states and 103 transitions. [2022-10-17 10:40:25,795 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-10-17 10:40:25,795 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 100 states and 103 transitions. [2022-10-17 10:40:25,796 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-10-17 10:40:25,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:40:25,801 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:40:25,804 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [46, 46, 1, 1, 1, 1] [2022-10-17 10:40:25,805 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-10-17 10:40:25,805 INFO L748 eck$LassoCheckResult]: Stem: 1054#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1055#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; 1059#L18-3 assume !!(main_~i~0#1 < 1048);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; 1061#L18-3 assume !!(main_~i~0#1 < 1048);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; 1056#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);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; 1151#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1150#L18-3 assume !!(main_~i~0#1 < 1048);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; 1149#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1148#L18-3 assume !!(main_~i~0#1 < 1048);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; 1147#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1146#L18-3 assume !!(main_~i~0#1 < 1048);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; 1145#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1144#L18-3 assume !!(main_~i~0#1 < 1048);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; 1143#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1142#L18-3 assume !!(main_~i~0#1 < 1048);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; 1141#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1140#L18-3 assume !!(main_~i~0#1 < 1048);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; 1139#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1138#L18-3 assume !!(main_~i~0#1 < 1048);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; 1137#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1136#L18-3 assume !!(main_~i~0#1 < 1048);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; 1135#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1134#L18-3 assume !!(main_~i~0#1 < 1048);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; 1133#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1132#L18-3 assume !!(main_~i~0#1 < 1048);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; 1131#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1130#L18-3 assume !!(main_~i~0#1 < 1048);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; 1129#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1128#L18-3 assume !!(main_~i~0#1 < 1048);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; 1127#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1126#L18-3 assume !!(main_~i~0#1 < 1048);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; 1125#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1124#L18-3 assume !!(main_~i~0#1 < 1048);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; 1123#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1122#L18-3 assume !!(main_~i~0#1 < 1048);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; 1121#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1120#L18-3 assume !!(main_~i~0#1 < 1048);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; 1119#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1118#L18-3 assume !!(main_~i~0#1 < 1048);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; 1117#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1116#L18-3 assume !!(main_~i~0#1 < 1048);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; 1115#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1114#L18-3 assume !!(main_~i~0#1 < 1048);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; 1113#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1112#L18-3 assume !!(main_~i~0#1 < 1048);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; 1111#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1110#L18-3 assume !!(main_~i~0#1 < 1048);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; 1109#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1108#L18-3 assume !!(main_~i~0#1 < 1048);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; 1107#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1106#L18-3 assume !!(main_~i~0#1 < 1048);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; 1105#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1104#L18-3 assume !!(main_~i~0#1 < 1048);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; 1103#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1102#L18-3 assume !!(main_~i~0#1 < 1048);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; 1101#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1100#L18-3 assume !!(main_~i~0#1 < 1048);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; 1099#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1098#L18-3 assume !!(main_~i~0#1 < 1048);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; 1097#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1096#L18-3 assume !!(main_~i~0#1 < 1048);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; 1095#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1094#L18-3 assume !!(main_~i~0#1 < 1048);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; 1093#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1092#L18-3 assume !!(main_~i~0#1 < 1048);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; 1091#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1090#L18-3 assume !!(main_~i~0#1 < 1048);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; 1089#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1088#L18-3 assume !!(main_~i~0#1 < 1048);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; 1087#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1086#L18-3 assume !!(main_~i~0#1 < 1048);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; 1085#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1084#L18-3 assume !!(main_~i~0#1 < 1048);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; 1083#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1082#L18-3 assume !!(main_~i~0#1 < 1048);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; 1081#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1080#L18-3 assume !!(main_~i~0#1 < 1048);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; 1079#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1078#L18-3 assume !!(main_~i~0#1 < 1048);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; 1077#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1076#L18-3 assume !!(main_~i~0#1 < 1048);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; 1075#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1074#L18-3 assume !!(main_~i~0#1 < 1048);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; 1073#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1072#L18-3 assume !!(main_~i~0#1 < 1048);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; 1071#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1070#L18-3 assume !!(main_~i~0#1 < 1048);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; 1069#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1068#L18-3 assume !!(main_~i~0#1 < 1048);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; 1067#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1066#L18-3 assume !!(main_~i~0#1 < 1048);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; 1065#L18-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1064#L18-3 assume !(main_~i~0#1 < 1048); 1062#L18-4 main_~q~0#1.base, main_~q~0#1.offset := main_~p~0#1.base, main_~p~0#1.offset; 1058#L23-2 [2022-10-17 10:40:25,805 INFO L750 eck$LassoCheckResult]: Loop: 1058#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; 1052#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; 1053#L22-3 assume !!main_#t~short5#1;havoc main_#t~mem4#1;havoc main_#t~short5#1; 1063#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; 1058#L23-2 [2022-10-17 10:40:25,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:25,806 INFO L85 PathProgramCache]: Analyzing trace with hash 830581479, now seen corresponding path program 5 times [2022-10-17 10:40:25,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:25,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207190624] [2022-10-17 10:40:25,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:25,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:28,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:28,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:40:28,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207190624] [2022-10-17 10:40:28,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207190624] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:40:28,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9479184] [2022-10-17 10:40:28,300 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-17 10:40:28,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:40:28,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:40:28,308 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:40:28,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80c6a89-d192-49fc-9f2f-29e6fa36b55e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-17 10:40:55,389 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-10-17 10:40:55,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:40:55,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 48 conjunts are in the unsatisfiable core [2022-10-17 10:40:55,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:40:55,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:55,714 INFO L328 TraceCheckSpWp]: Computing backward predicates...