./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/fermat-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6d5a98d-8e7b-4a70-8bb3-88e0d4af387f/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6d5a98d-8e7b-4a70-8bb3-88e0d4af387f/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6d5a98d-8e7b-4a70-8bb3-88e0d4af387f/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6d5a98d-8e7b-4a70-8bb3-88e0d4af387f/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/fermat-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6d5a98d-8e7b-4a70-8bb3-88e0d4af387f/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6d5a98d-8e7b-4a70-8bb3-88e0d4af387f/bin/uautomizer-uyxdKDjOR8 --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 e779827438904e8a0bb49f414cbe4d14072e556fff2389d3772808230457c73c --- 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-2329fc7 [2022-12-13 15:30:34,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:30:34,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:30:34,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:30:34,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:30:34,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:30:34,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:30:34,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:30:34,322 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:30:34,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:30:34,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:30:34,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:30:34,325 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:30:34,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:30:34,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:30:34,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:30:34,329 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:30:34,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:30:34,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:30:34,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:30:34,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:30:34,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:30:34,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:30:34,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:30:34,340 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:30:34,340 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:30:34,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:30:34,341 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:30:34,341 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:30:34,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:30:34,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:30:34,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:30:34,344 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:30:34,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:30:34,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:30:34,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:30:34,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:30:34,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:30:34,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:30:34,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:30:34,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:30:34,348 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6d5a98d-8e7b-4a70-8bb3-88e0d4af387f/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-12-13 15:30:34,368 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:30:34,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:30:34,369 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:30:34,369 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:30:34,370 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:30:34,370 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:30:34,370 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:30:34,370 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 15:30:34,371 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 15:30:34,371 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 15:30:34,371 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 15:30:34,371 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 15:30:34,371 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 15:30:34,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:30:34,372 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:30:34,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:30:34,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:30:34,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 15:30:34,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 15:30:34,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 15:30:34,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:30:34,373 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 15:30:34,373 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:30:34,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 15:30:34,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:30:34,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:30:34,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:30:34,374 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:30:34,375 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 15:30:34,375 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_e6d5a98d-8e7b-4a70-8bb3-88e0d4af387f/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6d5a98d-8e7b-4a70-8bb3-88e0d4af387f/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e779827438904e8a0bb49f414cbe4d14072e556fff2389d3772808230457c73c [2022-12-13 15:30:34,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:30:34,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:30:34,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:30:34,568 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:30:34,568 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:30:34,569 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6d5a98d-8e7b-4a70-8bb3-88e0d4af387f/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/termination-memory-alloca/fermat-alloca.i [2022-12-13 15:30:37,157 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:30:37,337 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:30:37,337 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6d5a98d-8e7b-4a70-8bb3-88e0d4af387f/sv-benchmarks/c/termination-memory-alloca/fermat-alloca.i [2022-12-13 15:30:37,345 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6d5a98d-8e7b-4a70-8bb3-88e0d4af387f/bin/uautomizer-uyxdKDjOR8/data/0e5b7c621/7d842612174043fb826379b34a7bc9ff/FLAGe1459cc31 [2022-12-13 15:30:37,714 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6d5a98d-8e7b-4a70-8bb3-88e0d4af387f/bin/uautomizer-uyxdKDjOR8/data/0e5b7c621/7d842612174043fb826379b34a7bc9ff [2022-12-13 15:30:37,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:30:37,717 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:30:37,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:30:37,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:30:37,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:30:37,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:30:37" (1/1) ... [2022-12-13 15:30:37,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70965845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:30:37, skipping insertion in model container [2022-12-13 15:30:37,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:30:37" (1/1) ... [2022-12-13 15:30:37,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:30:37,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:30:37,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:30:37,917 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:30:37,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:30:37,955 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:30:37,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:30:37 WrapperNode [2022-12-13 15:30:37,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:30:37,957 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:30:37,957 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:30:37,957 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:30:37,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:30:37" (1/1) ... [2022-12-13 15:30:37,970 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:30:37" (1/1) ... [2022-12-13 15:30:37,983 INFO L138 Inliner]: procedures = 109, calls = 45, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 116 [2022-12-13 15:30:37,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:30:37,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:30:37,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:30:37,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:30:37,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:30:37" (1/1) ... [2022-12-13 15:30:37,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:30:37" (1/1) ... [2022-12-13 15:30:37,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:30:37" (1/1) ... [2022-12-13 15:30:37,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:30:37" (1/1) ... [2022-12-13 15:30:37,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:30:37" (1/1) ... [2022-12-13 15:30:37,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:30:37" (1/1) ... [2022-12-13 15:30:37,998 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:30:37" (1/1) ... [2022-12-13 15:30:37,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:30:37" (1/1) ... [2022-12-13 15:30:38,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:30:38,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:30:38,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:30:38,001 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:30:38,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:30:37" (1/1) ... [2022-12-13 15:30:38,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:30:38,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6d5a98d-8e7b-4a70-8bb3-88e0d4af387f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:30:38,022 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6d5a98d-8e7b-4a70-8bb3-88e0d4af387f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:30:38,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6d5a98d-8e7b-4a70-8bb3-88e0d4af387f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 15:30:38,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 15:30:38,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 15:30:38,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:30:38,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:30:38,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:30:38,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:30:38,137 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:30:38,139 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:30:38,290 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:30:38,294 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:30:38,295 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 15:30:38,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:30:38 BoogieIcfgContainer [2022-12-13 15:30:38,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:30:38,297 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 15:30:38,297 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 15:30:38,300 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 15:30:38,300 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 15:30:38,301 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 03:30:37" (1/3) ... [2022-12-13 15:30:38,301 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@484901f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 03:30:38, skipping insertion in model container [2022-12-13 15:30:38,301 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 15:30:38,301 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:30:37" (2/3) ... [2022-12-13 15:30:38,302 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@484901f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 03:30:38, skipping insertion in model container [2022-12-13 15:30:38,302 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 15:30:38,302 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:30:38" (3/3) ... [2022-12-13 15:30:38,303 INFO L332 chiAutomizerObserver]: Analyzing ICFG fermat-alloca.i [2022-12-13 15:30:38,350 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 15:30:38,350 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 15:30:38,350 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 15:30:38,350 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 15:30:38,350 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 15:30:38,350 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 15:30:38,350 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 15:30:38,356 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 15:30:38,359 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) [2022-12-13 15:30:38,372 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-12-13 15:30:38,372 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 15:30:38,372 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 15:30:38,376 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 15:30:38,376 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:30:38,376 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 15:30:38,376 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) [2022-12-13 15:30:38,377 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-12-13 15:30:38,377 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 15:30:38,377 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 15:30:38,377 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 15:30:38,378 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:30:38,383 INFO L748 eck$LassoCheckResult]: Stem: 12#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~malloc5#1.base, main_#t~malloc5#1.offset, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem11#1, main_#t~mem12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1, main_#t~post16#1, main_#t~mem17#1, main_#t~mem18#1, main_#t~mem19#1, main_#t~post20#1, main_#t~mem21#1, main_#t~mem22#1, main_#t~mem23#1, main_#t~post24#1, main_#t~mem25#1, main_#t~mem26#1, main_~MAX~0#1.base, main_~MAX~0#1.offset, main_~a~0#1.base, main_~a~0#1.offset, main_~b~0#1.base, main_~b~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~MAX~0#1.base, main_~MAX~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~a~0#1.base, main_~a~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~b~0#1.base, main_~b~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call main_#t~malloc5#1.base, main_#t~malloc5#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc5#1.base, main_#t~malloc5#1.offset;call write~int(1000, main_~MAX~0#1.base, main_~MAX~0#1.offset, 4);call write~int(1, main_~a~0#1.base, main_~a~0#1.offset, 4);call write~int(1, main_~b~0#1.base, main_~b~0#1.offset, 4);call write~int(1, main_~c~0#1.base, main_~c~0#1.offset, 4); 6#L556-2true [2022-12-13 15:30:38,383 INFO L750 eck$LassoCheckResult]: Loop: 6#L556-2true assume !false;call main_#t~mem6#1 := read~int(main_~a~0#1.base, main_~a~0#1.offset, 4);call main_#t~mem7#1 := read~int(main_~a~0#1.base, main_~a~0#1.offset, 4);call main_#t~mem8#1 := read~int(main_~a~0#1.base, main_~a~0#1.offset, 4);call main_#t~mem9#1 := read~int(main_~b~0#1.base, main_~b~0#1.offset, 4);call main_#t~mem10#1 := read~int(main_~b~0#1.base, main_~b~0#1.offset, 4);call main_#t~mem11#1 := read~int(main_~b~0#1.base, main_~b~0#1.offset, 4);call main_#t~mem12#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call main_#t~mem14#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4); 13#L557true assume !(main_#t~mem6#1 * main_#t~mem7#1 * main_#t~mem8#1 == main_#t~mem9#1 * main_#t~mem10#1 * main_#t~mem11#1 + main_#t~mem12#1 * main_#t~mem13#1 * main_#t~mem14#1);havoc main_#t~mem6#1;havoc main_#t~mem7#1;havoc main_#t~mem8#1;havoc main_#t~mem9#1;havoc main_#t~mem10#1;havoc main_#t~mem11#1;havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~mem14#1;call main_#t~mem15#1 := read~int(main_~a~0#1.base, main_~a~0#1.offset, 4);main_#t~post16#1 := main_#t~mem15#1;call write~int(1 + main_#t~post16#1, main_~a~0#1.base, main_~a~0#1.offset, 4);havoc main_#t~mem15#1;havoc main_#t~post16#1;call main_#t~mem17#1 := read~int(main_~a~0#1.base, main_~a~0#1.offset, 4);call main_#t~mem18#1 := read~int(main_~MAX~0#1.base, main_~MAX~0#1.offset, 4); 5#L561true assume main_#t~mem17#1 > main_#t~mem18#1;havoc main_#t~mem17#1;havoc main_#t~mem18#1;call write~int(1, main_~a~0#1.base, main_~a~0#1.offset, 4);call main_#t~mem19#1 := read~int(main_~b~0#1.base, main_~b~0#1.offset, 4);main_#t~post20#1 := main_#t~mem19#1;call write~int(1 + main_#t~post20#1, main_~b~0#1.base, main_~b~0#1.offset, 4);havoc main_#t~mem19#1;havoc main_#t~post20#1; 7#L561-2true call main_#t~mem21#1 := read~int(main_~b~0#1.base, main_~b~0#1.offset, 4);call main_#t~mem22#1 := read~int(main_~MAX~0#1.base, main_~MAX~0#1.offset, 4); 4#L565true assume main_#t~mem21#1 > main_#t~mem22#1;havoc main_#t~mem21#1;havoc main_#t~mem22#1;call write~int(1, main_~b~0#1.base, main_~b~0#1.offset, 4);call main_#t~mem23#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);main_#t~post24#1 := main_#t~mem23#1;call write~int(1 + main_#t~post24#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem23#1;havoc main_#t~post24#1; 10#L565-2true call main_#t~mem25#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call main_#t~mem26#1 := read~int(main_~MAX~0#1.base, main_~MAX~0#1.offset, 4); 3#L569true assume !(main_#t~mem25#1 > main_#t~mem26#1);havoc main_#t~mem25#1;havoc main_#t~mem26#1; 6#L556-2true [2022-12-13 15:30:38,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:30:38,387 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-12-13 15:30:38,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:30:38,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460648277] [2022-12-13 15:30:38,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:30:38,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:30:38,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:30:38,508 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:30:38,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:30:38,544 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:30:38,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:30:38,547 INFO L85 PathProgramCache]: Analyzing trace with hash -903226603, now seen corresponding path program 1 times [2022-12-13 15:30:38,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:30:38,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637266076] [2022-12-13 15:30:38,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:30:38,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:30:38,565 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:30:38,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2015388629] [2022-12-13 15:30:38,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:30:38,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:30:38,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6d5a98d-8e7b-4a70-8bb3-88e0d4af387f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:30:38,566 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6d5a98d-8e7b-4a70-8bb3-88e0d4af387f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:30:38,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6d5a98d-8e7b-4a70-8bb3-88e0d4af387f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process