./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aff58d7-b7c6-40ac-a37c-7f0ae41b3794/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aff58d7-b7c6-40ac-a37c-7f0ae41b3794/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aff58d7-b7c6-40ac-a37c-7f0ae41b3794/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aff58d7-b7c6-40ac-a37c-7f0ae41b3794/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aff58d7-b7c6-40ac-a37c-7f0ae41b3794/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aff58d7-b7c6-40ac-a37c-7f0ae41b3794/bin/ukojak-LBtLqBUTdQ --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7f61497696f0e412e267c342267f07f29bf3ce290f707b3aa1a4f0ac00ff0274 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:37:33,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:37:33,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:37:33,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:37:33,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:37:33,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:37:33,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:37:33,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:37:33,185 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:37:33,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:37:33,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:37:33,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:37:33,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:37:33,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:37:33,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:37:33,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:37:33,195 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:37:33,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:37:33,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:37:33,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:37:33,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:37:33,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:37:33,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:37:33,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:37:33,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:37:33,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:37:33,212 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:37:33,213 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:37:33,214 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:37:33,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:37:33,215 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:37:33,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:37:33,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:37:33,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:37:33,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:37:33,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:37:33,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:37:33,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:37:33,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:37:33,223 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:37:33,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:37:33,225 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aff58d7-b7c6-40ac-a37c-7f0ae41b3794/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:37:33,255 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:37:33,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:37:33,256 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:37:33,256 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:37:33,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:37:33,257 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:37:33,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:37:33,257 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:37:33,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:37:33,258 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:37:33,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:37:33,258 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:37:33,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:37:33,259 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:37:33,259 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:37:33,259 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:37:33,259 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:37:33,259 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:37:33,260 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:37:33,260 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:37:33,260 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:37:33,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:37:33,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:37:33,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:37:33,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:37:33,261 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:37:33,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:37:33,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:37:33,262 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_0aff58d7-b7c6-40ac-a37c-7f0ae41b3794/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aff58d7-b7c6-40ac-a37c-7f0ae41b3794/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f61497696f0e412e267c342267f07f29bf3ce290f707b3aa1a4f0ac00ff0274 [2021-11-23 00:37:33,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:37:33,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:37:33,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:37:33,578 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:37:33,579 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:37:33,581 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aff58d7-b7c6-40ac-a37c-7f0ae41b3794/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound5.c [2021-11-23 00:37:33,654 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aff58d7-b7c6-40ac-a37c-7f0ae41b3794/bin/ukojak-LBtLqBUTdQ/data/089fa7293/a32307ea2b5f430884601a326fdd08c9/FLAG52e6cf30c [2021-11-23 00:37:34,110 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:37:34,110 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aff58d7-b7c6-40ac-a37c-7f0ae41b3794/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound5.c [2021-11-23 00:37:34,117 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aff58d7-b7c6-40ac-a37c-7f0ae41b3794/bin/ukojak-LBtLqBUTdQ/data/089fa7293/a32307ea2b5f430884601a326fdd08c9/FLAG52e6cf30c [2021-11-23 00:37:34,520 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aff58d7-b7c6-40ac-a37c-7f0ae41b3794/bin/ukojak-LBtLqBUTdQ/data/089fa7293/a32307ea2b5f430884601a326fdd08c9 [2021-11-23 00:37:34,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:37:34,525 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:37:34,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:37:34,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:37:34,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:37:34,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:37:34" (1/1) ... [2021-11-23 00:37:34,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52d74504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:37:34, skipping insertion in model container [2021-11-23 00:37:34,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:37:34" (1/1) ... [2021-11-23 00:37:34,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:37:34,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:37:34,729 WARN L230 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_0aff58d7-b7c6-40ac-a37c-7f0ae41b3794/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound5.c[597,610] [2021-11-23 00:37:34,747 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:37:34,756 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:37:34,768 WARN L230 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_0aff58d7-b7c6-40ac-a37c-7f0ae41b3794/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound5.c[597,610] [2021-11-23 00:37:34,776 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:37:34,789 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:37:34,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:37:34 WrapperNode [2021-11-23 00:37:34,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:37:34,791 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:37:34,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:37:34,791 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:37:34,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:37:34" (1/1) ... [2021-11-23 00:37:34,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:37:34" (1/1) ... [2021-11-23 00:37:34,823 INFO L137 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2021-11-23 00:37:34,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:37:34,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:37:34,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:37:34,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:37:34,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:37:34" (1/1) ... [2021-11-23 00:37:34,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:37:34" (1/1) ... [2021-11-23 00:37:34,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:37:34" (1/1) ... [2021-11-23 00:37:34,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:37:34" (1/1) ... [2021-11-23 00:37:34,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:37:34" (1/1) ... [2021-11-23 00:37:34,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:37:34" (1/1) ... [2021-11-23 00:37:34,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:37:34" (1/1) ... [2021-11-23 00:37:34,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:37:34,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:37:34,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:37:34,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:37:34,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:37:34" (1/1) ... [2021-11-23 00:37:34,864 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:37:34,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aff58d7-b7c6-40ac-a37c-7f0ae41b3794/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:37:34,896 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aff58d7-b7c6-40ac-a37c-7f0ae41b3794/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:37:34,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aff58d7-b7c6-40ac-a37c-7f0ae41b3794/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:37:34,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:37:34,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:37:34,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:37:34,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:37:34,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 00:37:34,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 00:37:34,996 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:37:34,997 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:37:35,155 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:37:35,179 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:37:35,179 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 00:37:35,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:37:35 BoogieIcfgContainer [2021-11-23 00:37:35,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:37:35,182 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:37:35,183 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:37:35,194 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:37:35,208 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:37:35" (1/1) ... [2021-11-23 00:37:35,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:37:35,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:35,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2021-11-23 00:37:35,330 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2021-11-23 00:37:35,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:37:35,332 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:35,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:37:35,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 00:37:35,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:37:35,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:37:35,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:35,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2021-11-23 00:37:35,872 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2021-11-23 00:37:35,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 00:37:35,878 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:35,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:37:35,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:37:36,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:36,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2021-11-23 00:37:36,233 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2021-11-23 00:37:36,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 00:37:36,235 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:36,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:36,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:37:36,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 00:37:36,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:37:36,496 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:37:36,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:36,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 26 states and 40 transitions. [2021-11-23 00:37:36,753 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 40 transitions. [2021-11-23 00:37:36,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 00:37:36,754 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:36,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:37:36,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-23 00:37:36,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:37:37,083 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 00:37:37,582 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:37:38,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:38,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 29 states and 49 transitions. [2021-11-23 00:37:38,329 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 49 transitions. [2021-11-23 00:37:38,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 00:37:38,330 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:38,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:38,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:37:38,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 00:37:38,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:37:38,499 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:37:39,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:39,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 37 states and 74 transitions. [2021-11-23 00:37:39,842 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 74 transitions. [2021-11-23 00:37:39,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 00:37:39,843 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:39,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:37:39,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 00:37:39,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:37:40,817 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 00:37:42,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:42,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 41 states and 92 transitions. [2021-11-23 00:37:42,360 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 92 transitions. [2021-11-23 00:37:42,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 00:37:42,361 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:42,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:37:42,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 00:37:42,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:37:42,761 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 00:37:43,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:43,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 42 states and 94 transitions. [2021-11-23 00:37:43,593 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 94 transitions. [2021-11-23 00:37:43,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 00:37:43,595 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:43,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:43,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:37:43,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 00:37:43,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:37:44,247 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 00:37:45,648 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 00:37:57,522 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 00:37:57,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:57,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 45 states and 107 transitions. [2021-11-23 00:37:57,628 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 107 transitions. [2021-11-23 00:37:57,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 00:37:57,630 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:57,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:57,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:37:57,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:37:57,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:37:57,987 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:38:02,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:38:02,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 53 states and 144 transitions. [2021-11-23 00:38:02,543 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 144 transitions. [2021-11-23 00:38:02,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 00:38:02,545 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:38:02,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:38:02,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:38:02,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:38:02,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:38:02,611 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:38:03,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:38:03,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 54 states and 145 transitions. [2021-11-23 00:38:03,079 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 145 transitions. [2021-11-23 00:38:03,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 00:38:03,081 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:38:03,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:38:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:38:03,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 00:38:03,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:38:04,446 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:38:07,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:38:07,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 58 states and 171 transitions. [2021-11-23 00:38:07,278 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 171 transitions. [2021-11-23 00:38:07,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 00:38:07,281 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:38:07,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:38:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:38:07,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 00:38:07,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:38:08,053 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:38:09,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:38:09,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 58 states and 162 transitions. [2021-11-23 00:38:09,752 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 162 transitions. [2021-11-23 00:38:09,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 00:38:09,754 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:38:09,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:38:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:38:09,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 00:38:09,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:38:11,067 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 00:38:12,294 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:38:19,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 00:38:23,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:38:23,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 61 states and 182 transitions. [2021-11-23 00:38:23,060 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 182 transitions. [2021-11-23 00:38:23,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 00:38:23,062 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:38:23,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:38:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:38:23,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:38:23,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:38:23,531 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:38:29,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:38:29,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 65 states and 195 transitions. [2021-11-23 00:38:29,336 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 195 transitions. [2021-11-23 00:38:29,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 00:38:29,337 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:38:29,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:38:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:38:29,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:38:29,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:38:29,427 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:38:32,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:38:32,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 70 states and 229 transitions. [2021-11-23 00:38:32,079 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 229 transitions. [2021-11-23 00:38:32,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 00:38:32,082 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:38:32,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:38:32,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:38:32,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 00:38:32,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:38:34,395 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:38:40,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:38:40,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 74 states and 262 transitions. [2021-11-23 00:38:40,600 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 262 transitions. [2021-11-23 00:38:40,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 00:38:40,602 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:38:40,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:38:40,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:38:40,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 00:38:40,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:38:42,276 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:38:45,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:38:45,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 74 states and 246 transitions. [2021-11-23 00:38:45,383 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 246 transitions. [2021-11-23 00:38:45,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 00:38:45,385 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:38:45,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:38:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:38:45,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 00:38:45,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:38:48,101 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 00:38:51,091 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 36 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:39:00,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:00,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 77 states and 275 transitions. [2021-11-23 00:39:00,364 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 275 transitions. [2021-11-23 00:39:00,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 00:39:00,366 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:00,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:00,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:39:00,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:01,236 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:39:12,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:12,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 81 states and 286 transitions. [2021-11-23 00:39:12,940 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 286 transitions. [2021-11-23 00:39:12,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 00:39:12,944 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:12,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:12,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:39:12,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:13,038 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:39:17,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:17,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 86 states and 329 transitions. [2021-11-23 00:39:17,928 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 329 transitions. [2021-11-23 00:39:17,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 00:39:17,930 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:17,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:18,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 00:39:18,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:24,194 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:39:38,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:38,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 90 states and 369 transitions. [2021-11-23 00:39:38,024 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 369 transitions. [2021-11-23 00:39:38,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 00:39:38,026 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:38,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:38,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 00:39:38,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:42,654 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:39:50,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:50,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 90 states and 344 transitions. [2021-11-23 00:39:50,223 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 344 transitions. [2021-11-23 00:39:50,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 00:39:50,226 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:50,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:50,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 00:39:50,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:51,004 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 100 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:40:57,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:40:57,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 114 states and 426 transitions. [2021-11-23 00:40:57,154 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 426 transitions. [2021-11-23 00:40:57,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 00:40:57,156 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:40:57,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:40:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:40:57,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 00:40:57,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:40:57,362 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 100 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:41:16,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:41:16,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 69 states and 156 transitions. [2021-11-23 00:41:16,873 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 156 transitions. [2021-11-23 00:41:16,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 00:41:16,874 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:41:16,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:41:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:41:16,915 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 00:41:16,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:41:16,967 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 25 iterations. [2021-11-23 00:41:17,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:41:17 ImpRootNode [2021-11-23 00:41:17,020 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:41:17,020 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:41:17,020 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:41:17,021 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:41:17,021 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:37:35" (3/4) ... [2021-11-23 00:41:17,023 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 00:41:17,203 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aff58d7-b7c6-40ac-a37c-7f0ae41b3794/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:41:17,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:41:17,204 INFO L158 Benchmark]: Toolchain (without parser) took 222678.97ms. Allocated memory was 102.8MB in the beginning and 192.9MB in the end (delta: 90.2MB). Free memory was 72.7MB in the beginning and 70.9MB in the end (delta: 1.8MB). Peak memory consumption was 91.3MB. Max. memory is 16.1GB. [2021-11-23 00:41:17,204 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 102.8MB. Free memory was 60.3MB in the beginning and 60.2MB in the end (delta: 46.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:41:17,205 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.31ms. Allocated memory is still 102.8MB. Free memory was 72.7MB in the beginning and 77.4MB in the end (delta: -4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 00:41:17,205 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.29ms. Allocated memory is still 102.8MB. Free memory was 77.4MB in the beginning and 75.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:41:17,206 INFO L158 Benchmark]: Boogie Preprocessor took 21.50ms. Allocated memory is still 102.8MB. Free memory was 75.8MB in the beginning and 74.8MB in the end (delta: 986.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:41:17,206 INFO L158 Benchmark]: RCFGBuilder took 334.93ms. Allocated memory is still 102.8MB. Free memory was 74.8MB in the beginning and 64.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 00:41:17,207 INFO L158 Benchmark]: CodeCheck took 221837.17ms. Allocated memory was 102.8MB in the beginning and 192.9MB in the end (delta: 90.2MB). Free memory was 64.4MB in the beginning and 75.1MB in the end (delta: -10.7MB). Peak memory consumption was 79.8MB. Max. memory is 16.1GB. [2021-11-23 00:41:17,207 INFO L158 Benchmark]: Witness Printer took 183.11ms. Allocated memory is still 192.9MB. Free memory was 75.1MB in the beginning and 70.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 00:41:17,210 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 221.7s, OverallIterations: 25, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 17 mSolverCounterUnknown, 2690 SdHoareTripleChecker+Valid, 296.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 743 mSDsluCounter, 1667 SdHoareTripleChecker+Invalid, 288.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 630 mSDsCounter, 4406 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13576 IncrementalHoareTripleChecker+Invalid, 17999 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4406 mSolverCounterUnsat, 1037 mSDtfsCounter, 13576 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10765 GetRequests, 9987 SyntacticMatches, 372 SemanticMatches, 406 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75618 ImplicationChecksByTransitivity, 178.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 32.1s InterpolantComputationTime, 759 NumberOfCodeBlocks, 759 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 687 ConstructedInterpolants, 0 QuantifiedInterpolants, 13367 SizeOfPredicates, 74 NumberOfNonLiveVariables, 2689 ConjunctsInSsa, 385 ConjunctsInUnsatCore, 24 InterpolantComputations, 3 PerfectInterpolantSequences, 515/954 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 16]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L21] int counter = 0; [L23] int X, Y; [L24] long long x, y, v, xy, yx; [L25] X = __VERIFIER_nondet_int() [L26] Y = __VERIFIER_nondet_int() [L27] v = ((long long) 2 * Y) - X [L28] y = 0 [L29] x = 0 VAL [counter=0, v=4, X=8, x=0, y=0, Y=6] [L31] EXPR counter++ VAL [counter=1, counter++=0, v=4, X=8, x=0, Y=6, y=0] [L31] COND TRUE counter++<5 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [counter=1, v=4, x=0, x=0, X=8, x=0, Y=6, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=1] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [counter=1, v=4, x=0, x=0, x=0, X=8, Y=6, y=0] [L35] COND FALSE !(!(x <= X)) [L39] COND FALSE !(v < 0) [L42] v = v + 2 * ((long long) Y - X) [L43] y++ [L45] x++ VAL [counter=1, v=0, x=1, X=8, x=0, x=0, Y=6, y=1, y++=0] [L31] EXPR counter++ VAL [counter=2, counter++=1, v=0, X=8, x=1, x=0, x=0, y=1, Y=6, y++=0] [L31] COND TRUE counter++<5 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [counter=2, v=0, x=1, X=8, x=6, x=8, Y=6, y=1, y++=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=2] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [counter=2, v=0, X=8, x=1, x=8, x=6, y=1, Y=6, y++=0] [L35] COND FALSE !(!(x <= X)) [L39] COND FALSE !(v < 0) [L42] v = v + 2 * ((long long) Y - X) [L43] y++ [L45] x++ VAL [counter=2, v=-4, x=6, x=2, x=8, X=8, Y=6, y=2, y++=44] [L31] EXPR counter++ VAL [counter=3, counter++=2, v=-4, x=2, X=8, x=6, x=8, y=2, Y=6, y++=44] [L31] COND TRUE counter++<5 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [counter=3, v=-4, X=8, x=2, x=12, x=16, Y=6, y=2, y++=44] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=3] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=3] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [counter=3, v=-4, x=16, x=2, X=8, x=12, Y=6, y=2, y++=44] [L35] COND FALSE !(!(x <= X)) [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y [L45] x++ VAL [counter=3, v=8, x=16, x=12, X=8, x=3, y=2, Y=6, y++=44] [L31] EXPR counter++ VAL [counter=4, counter++=3, v=8, x=3, x=12, x=16, X=8, y=2, Y=6, y++=44] [L31] COND TRUE counter++<5 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [counter=4, v=8, X=8, x=3, x=18, x=16, y=2, Y=6, y++=44] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=4] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=4] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [counter=4, v=8, X=8, x=16, x=18, x=3, Y=6, y=2, y++=44] [L35] COND FALSE !(!(x <= X)) [L39] COND FALSE !(v < 0) [L42] v = v + 2 * ((long long) Y - X) [L43] y++ [L45] x++ VAL [counter=4, v=4, x=4, X=8, x=16, x=18, y=3, Y=6, y++=0] [L31] EXPR counter++ VAL [counter=5, counter++=4, v=4, x=18, X=8, x=16, x=4, y=3, Y=6, y++=0] [L31] COND TRUE counter++<5 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [counter=5, v=4, x=24, x=4, X=8, x=24, Y=6, y=3, y++=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=5] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=5] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [counter=5, v=4, X=8, x=4, x=24, x=24, y=3, Y=6, y++=0] [L35] COND FALSE !(!(x <= X)) [L39] COND FALSE !(v < 0) [L42] v = v + 2 * ((long long) Y - X) [L43] y++ [L45] x++ VAL [counter=5, v=0, x=5, x=24, X=8, x=24, y=4, Y=6, y++=0] [L31] EXPR counter++ VAL [counter=6, counter++=5, v=0, X=8, x=24, x=24, x=5, y=4, Y=6, y++=0] [L31] COND FALSE !(counter++<5) [L47] xy = (long long) x*y [L48] yx = (long long) Y*x VAL [counter=6, v=0, X=8, x=30, x=20, x=5, y=4, Y=6, y++=0] [L49] CALL __VERIFIER_assert(2*yx - 2*xy - X + (long long) 2*Y - v + 2*y == 0) VAL [\old(cond)=0, counter=6] [L14] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=6] [L16] reach_error() VAL [\old(cond)=0, cond=0, counter=6] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 102.8MB. Free memory was 60.3MB in the beginning and 60.2MB in the end (delta: 46.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.31ms. Allocated memory is still 102.8MB. Free memory was 72.7MB in the beginning and 77.4MB in the end (delta: -4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.29ms. Allocated memory is still 102.8MB. Free memory was 77.4MB in the beginning and 75.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.50ms. Allocated memory is still 102.8MB. Free memory was 75.8MB in the beginning and 74.8MB in the end (delta: 986.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 334.93ms. Allocated memory is still 102.8MB. Free memory was 74.8MB in the beginning and 64.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 221837.17ms. Allocated memory was 102.8MB in the beginning and 192.9MB in the end (delta: 90.2MB). Free memory was 64.4MB in the beginning and 75.1MB in the end (delta: -10.7MB). Peak memory consumption was 79.8MB. Max. memory is 16.1GB. * Witness Printer took 183.11ms. Allocated memory is still 192.9MB. Free memory was 75.1MB in the beginning and 70.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 00:41:17,456 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aff58d7-b7c6-40ac-a37c-7f0ae41b3794/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2021-11-23 00:41:17,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aff58d7-b7c6-40ac-a37c-7f0ae41b3794/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE