./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 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_791a5569-ce17-41a6-af25-766917075f3a/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_791a5569-ce17-41a6-af25-766917075f3a/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_791a5569-ce17-41a6-af25-766917075f3a/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_791a5569-ce17-41a6-af25-766917075f3a/bin/uautomizer-Dbtcem3rbc/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/fermat-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_791a5569-ce17-41a6-af25-766917075f3a/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_791a5569-ce17-41a6-af25-766917075f3a/bin/uautomizer-Dbtcem3rbc --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-5e519f3 [2022-11-02 20:39:41,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:39:41,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:39:41,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:39:41,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:39:41,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:39:41,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:39:41,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:39:41,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:39:41,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:39:41,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:39:41,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:39:41,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:39:41,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:39:41,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:39:41,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:39:41,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:39:41,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:39:41,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:39:41,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:39:41,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:39:41,583 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:39:41,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:39:41,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:39:41,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:39:41,589 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:39:41,589 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:39:41,590 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:39:41,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:39:41,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:39:41,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:39:41,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:39:41,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:39:41,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:39:41,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:39:41,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:39:41,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:39:41,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:39:41,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:39:41,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:39:41,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:39:41,602 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_791a5569-ce17-41a6-af25-766917075f3a/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-02 20:39:41,622 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:39:41,623 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:39:41,623 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:39:41,624 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:39:41,625 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:39:41,625 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:39:41,626 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:39:41,626 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-02 20:39:41,627 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-02 20:39:41,627 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-02 20:39:41,627 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-02 20:39:41,627 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-02 20:39:41,628 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-02 20:39:41,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:39:41,628 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:39:41,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:39:41,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:39:41,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-02 20:39:41,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-02 20:39:41,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-02 20:39:41,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:39:41,630 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-02 20:39:41,631 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:39:41,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-02 20:39:41,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:39:41,631 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:39:41,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:39:41,632 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:39:41,633 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-02 20:39:41,633 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_791a5569-ce17-41a6-af25-766917075f3a/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_791a5569-ce17-41a6-af25-766917075f3a/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e779827438904e8a0bb49f414cbe4d14072e556fff2389d3772808230457c73c [2022-11-02 20:39:41,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:39:41,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:39:41,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:39:41,915 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:39:41,916 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:39:41,917 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_791a5569-ce17-41a6-af25-766917075f3a/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/termination-memory-alloca/fermat-alloca.i [2022-11-02 20:39:41,994 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_791a5569-ce17-41a6-af25-766917075f3a/bin/uautomizer-Dbtcem3rbc/data/f1db7f516/1281b560da674f8587785a0494bab45d/FLAGa52acf2a8 [2022-11-02 20:39:42,484 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:39:42,485 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_791a5569-ce17-41a6-af25-766917075f3a/sv-benchmarks/c/termination-memory-alloca/fermat-alloca.i [2022-11-02 20:39:42,495 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_791a5569-ce17-41a6-af25-766917075f3a/bin/uautomizer-Dbtcem3rbc/data/f1db7f516/1281b560da674f8587785a0494bab45d/FLAGa52acf2a8 [2022-11-02 20:39:42,825 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_791a5569-ce17-41a6-af25-766917075f3a/bin/uautomizer-Dbtcem3rbc/data/f1db7f516/1281b560da674f8587785a0494bab45d [2022-11-02 20:39:42,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:39:42,828 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:39:42,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:39:42,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:39:42,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:39:42,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:39:42" (1/1) ... [2022-11-02 20:39:42,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43f2b22c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:42, skipping insertion in model container [2022-11-02 20:39:42,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:39:42" (1/1) ... [2022-11-02 20:39:42,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:39:42,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:39:43,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:39:43,274 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:39:43,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:39:43,360 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:39:43,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:43 WrapperNode [2022-11-02 20:39:43,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:39:43,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:39:43,364 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:39:43,364 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:39:43,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:43" (1/1) ... [2022-11-02 20:39:43,382 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:43" (1/1) ... [2022-11-02 20:39:43,405 INFO L138 Inliner]: procedures = 109, calls = 45, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 116 [2022-11-02 20:39:43,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:39:43,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:39:43,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:39:43,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:39:43,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:43" (1/1) ... [2022-11-02 20:39:43,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:43" (1/1) ... [2022-11-02 20:39:43,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:43" (1/1) ... [2022-11-02 20:39:43,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:43" (1/1) ... [2022-11-02 20:39:43,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:43" (1/1) ... [2022-11-02 20:39:43,428 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:43" (1/1) ... [2022-11-02 20:39:43,429 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:43" (1/1) ... [2022-11-02 20:39:43,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:43" (1/1) ... [2022-11-02 20:39:43,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:39:43,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:39:43,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:39:43,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:39:43,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:43" (1/1) ... [2022-11-02 20:39:43,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:39:43,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_791a5569-ce17-41a6-af25-766917075f3a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:39:43,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_791a5569-ce17-41a6-af25-766917075f3a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:39:43,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_791a5569-ce17-41a6-af25-766917075f3a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-02 20:39:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:39:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:39:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:39:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:39:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:39:43,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:39:43,629 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:39:43,631 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:39:43,802 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:39:43,807 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:39:43,808 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:39:43,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:39:43 BoogieIcfgContainer [2022-11-02 20:39:43,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:39:43,811 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-02 20:39:43,811 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-02 20:39:43,816 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-02 20:39:43,817 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:39:43,817 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 08:39:42" (1/3) ... [2022-11-02 20:39:43,818 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7771cdd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:39:43, skipping insertion in model container [2022-11-02 20:39:43,818 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:39:43,818 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:43" (2/3) ... [2022-11-02 20:39:43,819 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7771cdd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:39:43, skipping insertion in model container [2022-11-02 20:39:43,819 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:39:43,819 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:39:43" (3/3) ... [2022-11-02 20:39:43,820 INFO L332 chiAutomizerObserver]: Analyzing ICFG fermat-alloca.i [2022-11-02 20:39:43,886 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-02 20:39:43,899 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-02 20:39:43,899 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-02 20:39:43,900 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-02 20:39:43,900 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-02 20:39:43,900 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-02 20:39:43,900 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-02 20:39:43,901 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-02 20:39:43,913 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) [2022-11-02 20:39:43,947 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-11-02 20:39:43,947 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:39:43,947 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:39:43,953 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:39:43,954 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:39:43,954 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-02 20:39:43,954 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) [2022-11-02 20:39:43,955 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-11-02 20:39:43,956 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:39:43,956 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:39:43,956 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:39:43,956 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:39:43,965 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 10#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); 8#L556-2true [2022-11-02 20:39:43,966 INFO L750 eck$LassoCheckResult]: Loop: 8#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); 6#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; 9#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; 11#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; 8#L556-2true [2022-11-02 20:39:43,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:39:43,989 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-02 20:39:43,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:39:43,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451898482] [2022-11-02 20:39:44,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:39:44,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:39:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:39:44,217 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:39:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:39:44,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:39:44,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:39:44,331 INFO L85 PathProgramCache]: Analyzing trace with hash -903226603, now seen corresponding path program 1 times [2022-11-02 20:39:44,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:39:44,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462964739] [2022-11-02 20:39:44,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:39:44,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:39:44,354 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:39:44,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [81859352] [2022-11-02 20:39:44,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:39:44,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:39:44,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_791a5569-ce17-41a6-af25-766917075f3a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:39:44,357 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_791a5569-ce17-41a6-af25-766917075f3a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:39:44,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_791a5569-ce17-41a6-af25-766917075f3a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:39:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:39:44,542 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.