./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN --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 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 --- 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-6b4ec56 [2022-11-20 11:30:02,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:30:02,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:30:02,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:30:02,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:30:02,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:30:02,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:30:02,065 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:30:02,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:30:02,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:30:02,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:30:02,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:30:02,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:30:02,083 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:30:02,086 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:30:02,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:30:02,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:30:02,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:30:02,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:30:02,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:30:02,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:30:02,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:30:02,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:30:02,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:30:02,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:30:02,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:30:02,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:30:02,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:30:02,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:30:02,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:30:02,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:30:02,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:30:02,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:30:02,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:30:02,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:30:02,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:30:02,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:30:02,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:30:02,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:30:02,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:30:02,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:30:02,135 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 11:30:02,189 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:30:02,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:30:02,190 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:30:02,191 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:30:02,192 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:30:02,192 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:30:02,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:30:02,194 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:30:02,194 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:30:02,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:30:02,196 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:30:02,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:30:02,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:30:02,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:30:02,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:30:02,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:30:02,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:30:02,198 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:30:02,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:30:02,198 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:30:02,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:30:02,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:30:02,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:30:02,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:30:02,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:30:02,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:30:02,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:30:02,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:30:02,201 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:30:02,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:30:02,202 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:30:02,202 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:30:02,203 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:30:02,203 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_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 [2022-11-20 11:30:02,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:30:02,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:30:02,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:30:02,557 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:30:02,557 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:30:02,559 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound10.c [2022-11-20 11:30:06,034 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:30:06,235 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:30:06,236 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound10.c [2022-11-20 11:30:06,251 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/data/5f03d411e/bfcd662d67b9477c9b70f17035c39bbe/FLAG1a7d1f0f8 [2022-11-20 11:30:06,269 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/data/5f03d411e/bfcd662d67b9477c9b70f17035c39bbe [2022-11-20 11:30:06,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:30:06,274 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:30:06,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:30:06,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:30:06,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:30:06,285 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:30:06" (1/1) ... [2022-11-20 11:30:06,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7009082f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:06, skipping insertion in model container [2022-11-20 11:30:06,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:30:06" (1/1) ... [2022-11-20 11:30:06,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:30:06,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:30:06,455 WARN L237 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_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound10.c[573,586] [2022-11-20 11:30:06,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:30:06,478 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:30:06,491 WARN L237 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_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound10.c[573,586] [2022-11-20 11:30:06,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:30:06,506 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:30:06,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:06 WrapperNode [2022-11-20 11:30:06,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:30:06,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:30:06,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:30:06,508 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:30:06,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:06" (1/1) ... [2022-11-20 11:30:06,520 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:06" (1/1) ... [2022-11-20 11:30:06,540 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2022-11-20 11:30:06,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:30:06,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:30:06,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:30:06,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:30:06,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:06" (1/1) ... [2022-11-20 11:30:06,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:06" (1/1) ... [2022-11-20 11:30:06,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:06" (1/1) ... [2022-11-20 11:30:06,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:06" (1/1) ... [2022-11-20 11:30:06,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:06" (1/1) ... [2022-11-20 11:30:06,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:06" (1/1) ... [2022-11-20 11:30:06,573 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:06" (1/1) ... [2022-11-20 11:30:06,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:06" (1/1) ... [2022-11-20 11:30:06,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:30:06,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:30:06,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:30:06,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:30:06,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:06" (1/1) ... [2022-11-20 11:30:06,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:30:06,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:30:06,606 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:30:06,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:30:06,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:30:06,644 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 11:30:06,644 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 11:30:06,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:30:06,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:30:06,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:30:06,645 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-20 11:30:06,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-20 11:30:06,717 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:30:06,720 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:30:06,930 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:30:06,952 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:30:06,952 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:30:06,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:30:06 BoogieIcfgContainer [2022-11-20 11:30:06,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:30:06,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:30:06,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:30:06,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:30:06,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:30:06" (1/3) ... [2022-11-20 11:30:06,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad97609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:30:06, skipping insertion in model container [2022-11-20 11:30:06,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:06" (2/3) ... [2022-11-20 11:30:06,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad97609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:30:06, skipping insertion in model container [2022-11-20 11:30:06,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:30:06" (3/3) ... [2022-11-20 11:30:06,970 INFO L112 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound10.c [2022-11-20 11:30:06,991 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:30:06,991 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:30:07,095 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:30:07,117 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;@48c9c4a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:30:07,118 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:30:07,122 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 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) [2022-11-20 11:30:07,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 11:30:07,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:30:07,136 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:30:07,136 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:30:07,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:30:07,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1928678447, now seen corresponding path program 1 times [2022-11-20 11:30:07,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:30:07,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561547106] [2022-11-20 11:30:07,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:30:07,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:30:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:07,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:30:07,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561547106] [2022-11-20 11:30:07,333 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-20 11:30:07,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472530688] [2022-11-20 11:30:07,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:30:07,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:30:07,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:30:07,338 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:30:07,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 11:30:07,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:07,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 11:30:07,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:30:07,432 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 11:30:07,433 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:30:07,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472530688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:30:07,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:30:07,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:30:07,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941365883] [2022-11-20 11:30:07,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:30:07,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:30:07,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:30:07,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:30:07,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:30:07,513 INFO L87 Difference]: Start difference. First operand has 24 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-11-20 11:30:07,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:30:07,550 INFO L93 Difference]: Finished difference Result 45 states and 62 transitions. [2022-11-20 11:30:07,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:30:07,553 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 18 [2022-11-20 11:30:07,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:30:07,567 INFO L225 Difference]: With dead ends: 45 [2022-11-20 11:30:07,567 INFO L226 Difference]: Without dead ends: 20 [2022-11-20 11:30:07,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:30:07,579 INFO L413 NwaCegarLoop]: 27 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, 27 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 [2022-11-20 11:30:07,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:30:07,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-20 11:30:07,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-20 11:30:07,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 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) [2022-11-20 11:30:07,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2022-11-20 11:30:07,625 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 18 [2022-11-20 11:30:07,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:30:07,625 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-11-20 11:30:07,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-11-20 11:30:07,626 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2022-11-20 11:30:07,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 11:30:07,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:30:07,629 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:30:07,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:30:07,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-20 11:30:07,840 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:30:07,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:30:07,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1584630691, now seen corresponding path program 1 times [2022-11-20 11:30:07,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:30:07,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339983240] [2022-11-20 11:30:07,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:30:07,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:30:07,877 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 11:30:07,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [959206905] [2022-11-20 11:30:07,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:30:07,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:30:07,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:30:07,881 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:30:07,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 11:30:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:07,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 11:30:07,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:30:08,193 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 11:30:08,194 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:30:08,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:30:08,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339983240] [2022-11-20 11:30:08,198 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 11:30:08,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959206905] [2022-11-20 11:30:08,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959206905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:30:08,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:30:08,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:30:08,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513014354] [2022-11-20 11:30:08,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:30:08,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:30:08,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:30:08,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:30:08,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:30:08,210 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:30:08,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:30:08,363 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2022-11-20 11:30:08,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 11:30:08,364 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2022-11-20 11:30:08,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:30:08,366 INFO L225 Difference]: With dead ends: 31 [2022-11-20 11:30:08,366 INFO L226 Difference]: Without dead ends: 29 [2022-11-20 11:30:08,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:30:08,368 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 18 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:30:08,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 68 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:30:08,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-20 11:30:08,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2022-11-20 11:30:08,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.1764705882352942) 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), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 11:30:08,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-11-20 11:30:08,379 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 18 [2022-11-20 11:30:08,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:30:08,380 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-11-20 11:30:08,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:30:08,381 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-11-20 11:30:08,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-20 11:30:08,382 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:30:08,382 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:30:08,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:30:08,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:30:08,586 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:30:08,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:30:08,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1566339285, now seen corresponding path program 1 times [2022-11-20 11:30:08,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:30:08,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147469075] [2022-11-20 11:30:08,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:30:08,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:30:08,617 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 11:30:08,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1846224123] [2022-11-20 11:30:08,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:30:08,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:30:08,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:30:08,626 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:30:08,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 11:30:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:08,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-20 11:30:08,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:30:08,860 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 11:30:08,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:30:09,033 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:30:09,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:30:09,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147469075] [2022-11-20 11:30:09,034 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 11:30:09,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846224123] [2022-11-20 11:30:09,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846224123] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:30:09,034 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:30:09,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7] total 16 [2022-11-20 11:30:09,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084666925] [2022-11-20 11:30:09,035 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:30:09,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-20 11:30:09,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:30:09,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-20 11:30:09,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:30:09,037 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 16 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 12 states have internal predecessors, (24), 5 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-20 11:30:09,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:30:09,195 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-11-20 11:30:09,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:30:09,196 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 12 states have internal predecessors, (24), 5 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 24 [2022-11-20 11:30:09,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:30:09,197 INFO L225 Difference]: With dead ends: 26 [2022-11-20 11:30:09,197 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 11:30:09,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2022-11-20 11:30:09,199 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 20 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:30:09,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 62 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:30:09,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 11:30:09,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 11:30:09,201 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) [2022-11-20 11:30:09,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 11:30:09,201 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2022-11-20 11:30:09,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:30:09,202 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:30:09,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 12 states have internal predecessors, (24), 5 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-20 11:30:09,202 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 11:30:09,203 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 11:30:09,205 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 11:30:09,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:30:09,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:30:09,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 11:30:09,524 INFO L895 garLoopResultBuilder]: At program point L35-2(lines 35 48) the Hoare annotation is: (let ((.cse0 (* |ULTIMATE.start_main_~x2~0#1| |ULTIMATE.start_main_~y1~0#1|))) (and (= |ULTIMATE.start_main_~x1~0#1| (+ .cse0 |ULTIMATE.start_main_~y2~0#1|)) (<= |ULTIMATE.start_main_~y3~0#1| |ULTIMATE.start_main_~x1~0#1|) (not (= |ULTIMATE.start_main_~x2~0#1| 0)) (= |ULTIMATE.start_main_~x1~0#1| (+ .cse0 |ULTIMATE.start_main_~y2~0#1| |ULTIMATE.start_main_~y3~0#1|)))) [2022-11-20 11:30:09,524 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 11:30:09,524 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2022-11-20 11:30:09,526 INFO L902 garLoopResultBuilder]: At program point L50(lines 22 51) the Hoare annotation is: true [2022-11-20 11:30:09,526 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 47) no Hoare annotation was computed. [2022-11-20 11:30:09,526 INFO L895 garLoopResultBuilder]: At program point L40-2(lines 35 48) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= |ULTIMATE.start_main_~y3~0#1| |ULTIMATE.start_main_~x1~0#1|) (not (= |ULTIMATE.start_main_~x2~0#1| 0)) (= |ULTIMATE.start_main_~x1~0#1| (+ (* |ULTIMATE.start_main_~x2~0#1| |ULTIMATE.start_main_~y1~0#1|) |ULTIMATE.start_main_~y2~0#1| |ULTIMATE.start_main_~y3~0#1|))) [2022-11-20 11:30:09,526 INFO L895 garLoopResultBuilder]: At program point L36(line 36) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= |ULTIMATE.start_main_~y3~0#1| |ULTIMATE.start_main_~x1~0#1|) (not (= |ULTIMATE.start_main_~x2~0#1| 0)) (= |ULTIMATE.start_main_~x1~0#1| (+ (* |ULTIMATE.start_main_~x2~0#1| |ULTIMATE.start_main_~y1~0#1|) |ULTIMATE.start_main_~y2~0#1| |ULTIMATE.start_main_~y3~0#1|))) [2022-11-20 11:30:09,526 INFO L899 garLoopResultBuilder]: For program point L36-1(lines 35 48) no Hoare annotation was computed. [2022-11-20 11:30:09,527 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 11:30:09,527 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 11:30:09,527 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 11:30:09,527 INFO L902 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: true [2022-11-20 11:30:09,527 INFO L895 garLoopResultBuilder]: At program point L28-1(line 28) the Hoare annotation is: (<= 0 |ULTIMATE.start_main_~x1~0#1|) [2022-11-20 11:30:09,528 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2022-11-20 11:30:09,528 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 12 14) the Hoare annotation is: true [2022-11-20 11:30:09,528 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2022-11-20 11:30:09,528 INFO L899 garLoopResultBuilder]: For program point L13-2(lines 12 14) no Hoare annotation was computed. [2022-11-20 11:30:09,528 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 12 14) no Hoare annotation was computed. [2022-11-20 11:30:09,528 INFO L899 garLoopResultBuilder]: For program point L17(lines 17 18) no Hoare annotation was computed. [2022-11-20 11:30:09,528 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 19) no Hoare annotation was computed. [2022-11-20 11:30:09,529 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 15 21) the Hoare annotation is: true [2022-11-20 11:30:09,529 INFO L899 garLoopResultBuilder]: For program point L16-2(lines 15 21) no Hoare annotation was computed. [2022-11-20 11:30:09,529 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 15 21) no Hoare annotation was computed. [2022-11-20 11:30:09,529 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2022-11-20 11:30:09,536 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-20 11:30:09,539 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:30:09,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:30:09 BoogieIcfgContainer [2022-11-20 11:30:09,560 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:30:09,562 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:30:09,562 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:30:09,562 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:30:09,563 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:30:06" (3/4) ... [2022-11-20 11:30:09,566 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:30:09,573 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-20 11:30:09,573 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-20 11:30:09,578 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-20 11:30:09,579 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-20 11:30:09,579 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 11:30:09,580 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:30:09,620 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:30:09,620 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:30:09,620 INFO L158 Benchmark]: Toolchain (without parser) took 3346.74ms. Allocated memory was 155.2MB in the beginning and 207.6MB in the end (delta: 52.4MB). Free memory was 110.2MB in the beginning and 107.3MB in the end (delta: 2.9MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. [2022-11-20 11:30:09,621 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 155.2MB. Free memory was 98.1MB in the beginning and 98.0MB in the end (delta: 150.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:30:09,621 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.00ms. Allocated memory is still 155.2MB. Free memory was 109.7MB in the beginning and 99.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 11:30:09,621 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.02ms. Allocated memory is still 155.2MB. Free memory was 99.7MB in the beginning and 98.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:30:09,622 INFO L158 Benchmark]: Boogie Preprocessor took 34.17ms. Allocated memory is still 155.2MB. Free memory was 98.2MB in the beginning and 97.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:30:09,622 INFO L158 Benchmark]: RCFGBuilder took 378.27ms. Allocated memory is still 155.2MB. Free memory was 97.1MB in the beginning and 86.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 11:30:09,622 INFO L158 Benchmark]: TraceAbstraction took 2603.34ms. Allocated memory was 155.2MB in the beginning and 207.6MB in the end (delta: 52.4MB). Free memory was 86.2MB in the beginning and 110.5MB in the end (delta: -24.3MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2022-11-20 11:30:09,623 INFO L158 Benchmark]: Witness Printer took 58.32ms. Allocated memory is still 207.6MB. Free memory was 110.5MB in the beginning and 107.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:30:09,625 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 155.2MB. Free memory was 98.1MB in the beginning and 98.0MB in the end (delta: 150.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 230.00ms. Allocated memory is still 155.2MB. Free memory was 109.7MB in the beginning and 99.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.02ms. Allocated memory is still 155.2MB. Free memory was 99.7MB in the beginning and 98.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.17ms. Allocated memory is still 155.2MB. Free memory was 98.2MB in the beginning and 97.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 378.27ms. Allocated memory is still 155.2MB. Free memory was 97.1MB in the beginning and 86.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2603.34ms. Allocated memory was 155.2MB in the beginning and 207.6MB in the end (delta: 52.4MB). Free memory was 86.2MB in the beginning and 110.5MB in the end (delta: -24.3MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * Witness Printer took 58.32ms. Allocated memory is still 207.6MB. Free memory was 110.5MB in the beginning and 107.3MB in the end (delta: 3.1MB). 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: 18]: 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: 2.5s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 157 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 106 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 200 IncrementalHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 51 mSDtfsCounter, 200 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=2, InterpolantAutomatonStates: 19, 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 14 PreInvPairs, 21 NumberOfFragments, 68 HoareAnnotationTreeSize, 14 FomulaSimplifications, 21 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 52 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 217 SizeOfPredicates, 9 NumberOfNonLiveVariables, 200 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 15/20 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: 35]: Loop Invariant Derived loop invariant: ((0 <= x1 && y3 <= x1) && !(x2 == 0)) && x1 == x2 * y1 + y2 + y3 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-20 11:30:09,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bfb4b25-9bd1-4c4d-a346-d2b158fe19b2/bin/uautomizer-ug76WZFUDN/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