./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 15f2c27c8ff19b1764b20b7d08d4582e2b047f4871dbacc2fd506a74654d4ef0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:37:15,483 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:37:15,489 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:37:15,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:37:15,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:37:15,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:37:15,538 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:37:15,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:37:15,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:37:15,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:37:15,551 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:37:15,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:37:15,554 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:37:15,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:37:15,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:37:15,561 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:37:15,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:37:15,564 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:37:15,565 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:37:15,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:37:15,577 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:37:15,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:37:15,581 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:37:15,582 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:37:15,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:37:15,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:37:15,593 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:37:15,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:37:15,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:37:15,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:37:15,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:37:15,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:37:15,601 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:37:15,602 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:37:15,603 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:37:15,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:37:15,604 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:37:15,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:37:15,605 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:37:15,606 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:37:15,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:37:15,607 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:37:15,647 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:37:15,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:37:15,648 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:37:15,648 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:37:15,650 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:37:15,650 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:37:15,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:37:15,651 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:37:15,651 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:37:15,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:37:15,652 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:37:15,653 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:37:15,653 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:37:15,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:37:15,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:37:15,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:37:15,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:37:15,654 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:37:15,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:37:15,655 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:37:15,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:37:15,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:37:15,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:37:15,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:37:15,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:37:15,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:37:15,658 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:37:15,658 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:37:15,658 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:37:15,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:37:15,659 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:37:15,659 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:37:15,659 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:37:15,659 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15f2c27c8ff19b1764b20b7d08d4582e2b047f4871dbacc2fd506a74654d4ef0 [2022-11-16 12:37:15,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:37:15,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:37:15,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:37:15,990 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:37:15,990 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:37:15,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound1.c [2022-11-16 12:37:16,058 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/data/7e4e048ab/751bf6d234164490bf918517b4995e90/FLAGcf7f1f9d4 [2022-11-16 12:37:16,610 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:37:16,610 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound1.c [2022-11-16 12:37:16,617 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/data/7e4e048ab/751bf6d234164490bf918517b4995e90/FLAGcf7f1f9d4 [2022-11-16 12:37:16,955 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/data/7e4e048ab/751bf6d234164490bf918517b4995e90 [2022-11-16 12:37:16,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:37:16,958 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:37:16,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:37:16,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:37:16,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:37:16,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:37:16" (1/1) ... [2022-11-16 12:37:16,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e8de5ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:16, skipping insertion in model container [2022-11-16 12:37:16,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:37:16" (1/1) ... [2022-11-16 12:37:16,977 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:37:16,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:37:17,169 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound1.c[525,538] [2022-11-16 12:37:17,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:37:17,191 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:37:17,204 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound1.c[525,538] [2022-11-16 12:37:17,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:37:17,223 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:37:17,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17 WrapperNode [2022-11-16 12:37:17,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:37:17,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:37:17,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:37:17,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:37:17,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17" (1/1) ... [2022-11-16 12:37:17,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17" (1/1) ... [2022-11-16 12:37:17,261 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 39 [2022-11-16 12:37:17,261 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:37:17,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:37:17,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:37:17,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:37:17,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17" (1/1) ... [2022-11-16 12:37:17,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17" (1/1) ... [2022-11-16 12:37:17,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17" (1/1) ... [2022-11-16 12:37:17,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17" (1/1) ... [2022-11-16 12:37:17,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17" (1/1) ... [2022-11-16 12:37:17,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17" (1/1) ... [2022-11-16 12:37:17,298 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17" (1/1) ... [2022-11-16 12:37:17,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17" (1/1) ... [2022-11-16 12:37:17,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:37:17,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:37:17,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:37:17,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:37:17,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17" (1/1) ... [2022-11-16 12:37:17,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:37:17,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:37:17,351 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:37:17,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:37:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:37:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 12:37:17,401 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 12:37:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:37:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:37:17,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:37:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 12:37:17,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 12:37:17,488 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:37:17,492 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:37:17,709 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:37:17,715 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:37:17,715 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:37:17,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:37:17 BoogieIcfgContainer [2022-11-16 12:37:17,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:37:17,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:37:17,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:37:17,730 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:37:17,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:37:16" (1/3) ... [2022-11-16 12:37:17,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe17192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:37:17, skipping insertion in model container [2022-11-16 12:37:17,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17" (2/3) ... [2022-11-16 12:37:17,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe17192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:37:17, skipping insertion in model container [2022-11-16 12:37:17,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:37:17" (3/3) ... [2022-11-16 12:37:17,733 INFO L112 eAbstractionObserver]: Analyzing ICFG geo2-ll_valuebound1.c [2022-11-16 12:37:17,752 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:37:17,752 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:37:17,844 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:37:17,856 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1a1b2e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:37:17,857 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:37:17,861 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-16 12:37:17,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 12:37:17,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:37:17,870 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:17,871 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:37:17,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:17,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1945977121, now seen corresponding path program 1 times [2022-11-16 12:37:17,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:17,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402157019] [2022-11-16 12:37:17,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:17,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:18,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:18,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:18,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402157019] [2022-11-16 12:37:18,063 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-16 12:37:18,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434399320] [2022-11-16 12:37:18,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:18,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:37:18,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:37:18,069 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:37:18,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:37:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:18,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 12:37:18,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:37:18,277 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 12:37:18,302 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:37:18,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434399320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:18,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:18,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:18,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467873339] [2022-11-16 12:37:18,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:18,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:37:18,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:18,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:37:18,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:37:18,351 INFO L87 Difference]: Start difference. First operand has 24 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 12:37:18,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:37:18,374 INFO L93 Difference]: Finished difference Result 45 states and 60 transitions. [2022-11-16 12:37:18,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:37:18,376 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2022-11-16 12:37:18,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:37:18,384 INFO L225 Difference]: With dead ends: 45 [2022-11-16 12:37:18,384 INFO L226 Difference]: Without dead ends: 20 [2022-11-16 12:37:18,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:37:18,391 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:37:18,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:37:18,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-16 12:37:18,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-16 12:37:18,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-16 12:37:18,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-11-16 12:37:18,439 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 19 [2022-11-16 12:37:18,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:37:18,440 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-11-16 12:37:18,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 12:37:18,441 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-11-16 12:37:18,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 12:37:18,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:37:18,444 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:18,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:37:18,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-16 12:37:18,652 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:37:18,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:18,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1338724063, now seen corresponding path program 1 times [2022-11-16 12:37:18,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:18,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969394872] [2022-11-16 12:37:18,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:18,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:18,687 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:37:18,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [408429875] [2022-11-16 12:37:18,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:18,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:37:18,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:37:18,691 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:37:18,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:37:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:18,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-16 12:37:18,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:37:19,053 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 12:37:19,055 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:37:19,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:19,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969394872] [2022-11-16 12:37:19,058 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:37:19,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408429875] [2022-11-16 12:37:19,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408429875] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:19,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:19,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:37:19,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081481241] [2022-11-16 12:37:19,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:19,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:37:19,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:19,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:37:19,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:37:19,070 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 12:37:19,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:37:19,210 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2022-11-16 12:37:19,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:37:19,235 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2022-11-16 12:37:19,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:37:19,236 INFO L225 Difference]: With dead ends: 30 [2022-11-16 12:37:19,236 INFO L226 Difference]: Without dead ends: 27 [2022-11-16 12:37:19,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:37:19,238 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 15 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:37:19,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 74 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:37:19,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-16 12:37:19,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-16 12:37:19,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-16 12:37:19,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2022-11-16 12:37:19,247 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 19 [2022-11-16 12:37:19,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:37:19,248 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2022-11-16 12:37:19,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 12:37:19,249 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2022-11-16 12:37:19,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-16 12:37:19,251 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:37:19,251 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:19,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:37:19,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:37:19,457 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:37:19,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:19,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1196071836, now seen corresponding path program 1 times [2022-11-16 12:37:19,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:19,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604018282] [2022-11-16 12:37:19,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:19,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:19,476 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:37:19,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [557174315] [2022-11-16 12:37:19,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:19,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:37:19,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:37:19,478 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:37:19,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:37:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:19,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:37:19,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:37:19,659 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 12:37:19,659 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:37:19,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:19,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604018282] [2022-11-16 12:37:19,660 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:37:19,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557174315] [2022-11-16 12:37:19,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557174315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:19,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:19,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:37:19,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037731393] [2022-11-16 12:37:19,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:19,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:37:19,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:19,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:37:19,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:37:19,663 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-16 12:37:19,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:37:19,717 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2022-11-16 12:37:19,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:37:19,718 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2022-11-16 12:37:19,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:37:19,718 INFO L225 Difference]: With dead ends: 27 [2022-11-16 12:37:19,719 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 12:37:19,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:37:19,724 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 4 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:37:19,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 50 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:37:19,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 12:37:19,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 12:37:19,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:19,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 12:37:19,730 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2022-11-16 12:37:19,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:37:19,730 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:37:19,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-16 12:37:19,730 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 12:37:19,731 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 12:37:19,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 12:37:19,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:37:19,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:37:19,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 12:37:19,994 INFO L895 garLoopResultBuilder]: At program point L35-2(lines 35 44) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 1) (<= 1 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~x~0#1| 1) (<= |ULTIMATE.start_main_~z~0#1| 1) (= |ULTIMATE.start_main_~y~0#1| 1) (<= 0 |ULTIMATE.start_main_~z~0#1|)) [2022-11-16 12:37:19,996 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 12:37:19,997 INFO L895 garLoopResultBuilder]: At program point L35-3(lines 35 44) the Hoare annotation is: (and (= |ULTIMATE.start_main_~x~0#1| 1) (<= |ULTIMATE.start_main_~z~0#1| 1) (= |ULTIMATE.start_main_~y~0#1| 1) (<= 0 |ULTIMATE.start_main_~z~0#1|)) [2022-11-16 12:37:19,998 INFO L895 garLoopResultBuilder]: At program point L29(line 29) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~z~0#1| 1) (<= 0 |ULTIMATE.start_main_~z~0#1|)) [2022-11-16 12:37:19,998 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2022-11-16 12:37:20,001 INFO L902 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: true [2022-11-16 12:37:20,002 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2022-11-16 12:37:20,002 INFO L902 garLoopResultBuilder]: At program point L46(lines 23 47) the Hoare annotation is: true [2022-11-16 12:37:20,002 INFO L895 garLoopResultBuilder]: At program point L36(line 36) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 1) (<= 1 |ULTIMATE.start_main_~c~0#1|) (= |ULTIMATE.start_main_~x~0#1| 1) (<= |ULTIMATE.start_main_~z~0#1| 1) (= |ULTIMATE.start_main_~y~0#1| 1) (<= 0 |ULTIMATE.start_main_~z~0#1|)) [2022-11-16 12:37:20,002 INFO L899 garLoopResultBuilder]: For program point L36-1(lines 35 44) no Hoare annotation was computed. [2022-11-16 12:37:20,002 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-16 12:37:20,002 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 12:37:20,003 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-16 12:37:20,003 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2022-11-16 12:37:20,003 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 11 13) the Hoare annotation is: true [2022-11-16 12:37:20,003 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2022-11-16 12:37:20,003 INFO L899 garLoopResultBuilder]: For program point L12-2(lines 11 13) no Hoare annotation was computed. [2022-11-16 12:37:20,003 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 11 13) no Hoare annotation was computed. [2022-11-16 12:37:20,003 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2022-11-16 12:37:20,004 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2022-11-16 12:37:20,004 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 14 20) the Hoare annotation is: true [2022-11-16 12:37:20,004 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 20) no Hoare annotation was computed. [2022-11-16 12:37:20,004 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2022-11-16 12:37:20,004 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2022-11-16 12:37:20,008 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-16 12:37:20,010 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:37:20,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:37:20 BoogieIcfgContainer [2022-11-16 12:37:20,028 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:37:20,028 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:37:20,028 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:37:20,028 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:37:20,029 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:37:17" (3/4) ... [2022-11-16 12:37:20,032 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:37:20,038 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-16 12:37:20,038 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-16 12:37:20,044 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-16 12:37:20,044 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 12:37:20,045 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:37:20,045 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:37:20,080 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:37:20,080 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:37:20,081 INFO L158 Benchmark]: Toolchain (without parser) took 3122.25ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 46.8MB in the beginning and 57.0MB in the end (delta: -10.2MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2022-11-16 12:37:20,081 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 83.9MB. Free memory was 63.0MB in the beginning and 62.9MB in the end (delta: 78.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:37:20,081 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.76ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 46.6MB in the beginning and 79.6MB in the end (delta: -33.1MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2022-11-16 12:37:20,082 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.78ms. Allocated memory is still 102.8MB. Free memory was 79.6MB in the beginning and 78.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:37:20,082 INFO L158 Benchmark]: Boogie Preprocessor took 44.78ms. Allocated memory is still 102.8MB. Free memory was 78.0MB in the beginning and 76.9MB in the end (delta: 1.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:37:20,082 INFO L158 Benchmark]: RCFGBuilder took 414.62ms. Allocated memory is still 102.8MB. Free memory was 76.9MB in the beginning and 66.8MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:37:20,083 INFO L158 Benchmark]: TraceAbstraction took 2302.78ms. Allocated memory is still 102.8MB. Free memory was 66.1MB in the beginning and 59.6MB in the end (delta: 6.5MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2022-11-16 12:37:20,083 INFO L158 Benchmark]: Witness Printer took 51.91ms. Allocated memory is still 102.8MB. Free memory was 59.6MB in the beginning and 57.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:37:20,085 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 83.9MB. Free memory was 63.0MB in the beginning and 62.9MB in the end (delta: 78.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.76ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 46.6MB in the beginning and 79.6MB in the end (delta: -33.1MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.78ms. Allocated memory is still 102.8MB. Free memory was 79.6MB in the beginning and 78.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.78ms. Allocated memory is still 102.8MB. Free memory was 78.0MB in the beginning and 76.9MB in the end (delta: 1.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 414.62ms. Allocated memory is still 102.8MB. Free memory was 76.9MB in the beginning and 66.8MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2302.78ms. Allocated memory is still 102.8MB. Free memory was 66.1MB in the beginning and 59.6MB in the end (delta: 6.5MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Witness Printer took 51.91ms. Allocated memory is still 102.8MB. Free memory was 59.6MB in the beginning and 57.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 150 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 94 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 80 IncrementalHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 56 mSDtfsCounter, 80 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=2, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 15 PreInvPairs, 20 NumberOfFragments, 68 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 164 SizeOfPredicates, 5 NumberOfNonLiveVariables, 212 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 16/16 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((((0 <= k && k <= 1) && 1 <= c) && x == 1) && z <= 1) && y == 1) && 0 <= z RESULT: Ultimate proved your program to be correct! [2022-11-16 12:37:20,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15cd1f28-eaac-44c3-91d1-e5cb0132a196/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE