./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound2.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_bd163690-9390-444c-9185-1881ab893275/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd163690-9390-444c-9185-1881ab893275/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_bd163690-9390-444c-9185-1881ab893275/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd163690-9390-444c-9185-1881ab893275/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd163690-9390-444c-9185-1881ab893275/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_bd163690-9390-444c-9185-1881ab893275/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 a69d5fb397906cd89c0147a3c54d3ad7658561b03775140fca8816654a2bbc3d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:06:05,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:06:05,485 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:06:05,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:06:05,528 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:06:05,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:06:05,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:06:05,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:06:05,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:06:05,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:06:05,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:06:05,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:06:05,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:06:05,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:06:05,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:06:05,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:06:05,548 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:06:05,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:06:05,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:06:05,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:06:05,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:06:05,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:06:05,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:06:05,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:06:05,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:06:05,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:06:05,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:06:05,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:06:05,573 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:06:05,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:06:05,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:06:05,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:06:05,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:06:05,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:06:05,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:06:05,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:06:05,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:06:05,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:06:05,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:06:05,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:06:05,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:06:05,595 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd163690-9390-444c-9185-1881ab893275/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:06:05,634 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:06:05,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:06:05,636 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:06:05,637 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:06:05,638 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:06:05,639 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:06:05,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:06:05,639 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:06:05,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:06:05,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:06:05,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:06:05,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:06:05,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:06:05,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:06:05,642 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:06:05,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:06:05,643 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:06:05,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:06:05,643 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:06:05,643 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:06:05,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:06:05,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:06:05,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:06:05,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:06:05,645 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:06:05,645 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:06:05,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:06:05,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:06:05,645 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_bd163690-9390-444c-9185-1881ab893275/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd163690-9390-444c-9185-1881ab893275/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a69d5fb397906cd89c0147a3c54d3ad7658561b03775140fca8816654a2bbc3d [2021-11-23 01:06:06,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:06:06,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:06:06,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:06:06,055 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:06:06,056 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:06:06,058 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd163690-9390-444c-9185-1881ab893275/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound2.c [2021-11-23 01:06:06,152 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd163690-9390-444c-9185-1881ab893275/bin/ukojak-LBtLqBUTdQ/data/534cb1852/643fec64f38e459a9398d648a04dd387/FLAG6ba09afd4 [2021-11-23 01:06:06,690 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:06:06,692 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd163690-9390-444c-9185-1881ab893275/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound2.c [2021-11-23 01:06:06,705 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd163690-9390-444c-9185-1881ab893275/bin/ukojak-LBtLqBUTdQ/data/534cb1852/643fec64f38e459a9398d648a04dd387/FLAG6ba09afd4 [2021-11-23 01:06:07,050 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd163690-9390-444c-9185-1881ab893275/bin/ukojak-LBtLqBUTdQ/data/534cb1852/643fec64f38e459a9398d648a04dd387 [2021-11-23 01:06:07,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:06:07,054 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:06:07,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:06:07,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:06:07,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:06:07,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:06:07" (1/1) ... [2021-11-23 01:06:07,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10e617e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:07, skipping insertion in model container [2021-11-23 01:06:07,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:06:07" (1/1) ... [2021-11-23 01:06:07,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:06:07,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:06:07,300 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_bd163690-9390-444c-9185-1881ab893275/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound2.c[597,610] [2021-11-23 01:06:07,342 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:06:07,352 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:06:07,371 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_bd163690-9390-444c-9185-1881ab893275/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound2.c[597,610] [2021-11-23 01:06:07,397 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:06:07,425 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:06:07,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:07 WrapperNode [2021-11-23 01:06:07,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:06:07,428 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:06:07,428 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:06:07,428 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:06:07,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:07" (1/1) ... [2021-11-23 01:06:07,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:07" (1/1) ... [2021-11-23 01:06:07,477 INFO L137 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2021-11-23 01:06:07,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:06:07,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:06:07,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:06:07,478 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:06:07,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:07" (1/1) ... [2021-11-23 01:06:07,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:07" (1/1) ... [2021-11-23 01:06:07,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:07" (1/1) ... [2021-11-23 01:06:07,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:07" (1/1) ... [2021-11-23 01:06:07,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:07" (1/1) ... [2021-11-23 01:06:07,512 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:07" (1/1) ... [2021-11-23 01:06:07,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:07" (1/1) ... [2021-11-23 01:06:07,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:06:07,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:06:07,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:06:07,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:06:07,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:07" (1/1) ... [2021-11-23 01:06:07,535 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:06:07,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd163690-9390-444c-9185-1881ab893275/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:06:07,563 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd163690-9390-444c-9185-1881ab893275/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:06:07,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd163690-9390-444c-9185-1881ab893275/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:06:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:06:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:06:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:06:07,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:06:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 01:06:07,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 01:06:07,715 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:06:07,717 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:06:07,846 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:06:07,877 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:06:07,877 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:06:07,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:06:07 BoogieIcfgContainer [2021-11-23 01:06:07,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:06:07,882 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:06:07,882 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:06:07,894 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:06:07,894 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:06:07" (1/1) ... [2021-11-23 01:06:07,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:06:07,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:06:07,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2021-11-23 01:06:07,973 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2021-11-23 01:06:07,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:06:07,976 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:06:07,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:08,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 01:06:08,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:06:08,322 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 01:06:08,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:06:08,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2021-11-23 01:06:08,535 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2021-11-23 01:06:08,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 01:06:08,540 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:06:08,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:08,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:08,670 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 01:06:09,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:06:09,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2021-11-23 01:06:09,006 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2021-11-23 01:06:09,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 01:06:09,008 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:06:09,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:09,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:09,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 01:06:09,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:06:09,316 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 01:06:09,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:06:09,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 26 states and 40 transitions. [2021-11-23 01:06:09,560 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 40 transitions. [2021-11-23 01:06:09,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 01:06:09,561 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:06:09,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:09,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:09,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:06:09,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:06:10,029 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:06:10,587 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:06:14,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:06:14,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:06:14,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 31 states and 54 transitions. [2021-11-23 01:06:14,508 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2021-11-23 01:06:14,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 01:06:14,509 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:06:14,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:14,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:14,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 01:06:14,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:06:14,713 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 01:06:16,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:06:16,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 39 states and 78 transitions. [2021-11-23 01:06:16,641 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 78 transitions. [2021-11-23 01:06:16,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:06:16,643 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:06:16,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:16,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 01:06:16,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:06:17,412 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 01:06:18,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:06:18,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 43 states and 95 transitions. [2021-11-23 01:06:18,793 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 95 transitions. [2021-11-23 01:06:18,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:06:18,794 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:06:18,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:18,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 01:06:18,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:06:19,216 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 01:06:20,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:06:20,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 44 states and 97 transitions. [2021-11-23 01:06:20,077 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 97 transitions. [2021-11-23 01:06:20,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:06:20,079 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:06:20,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:20,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:20,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:06:20,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:06:20,316 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:06:34,830 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 01:06:34,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:06:34,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 56 states and 135 transitions. [2021-11-23 01:06:34,865 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 135 transitions. [2021-11-23 01:06:34,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:06:34,867 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:06:34,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:34,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:34,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:06:34,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:06:35,111 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:06:36,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:06:36,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 38 states and 60 transitions. [2021-11-23 01:06:36,236 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 60 transitions. [2021-11-23 01:06:36,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 01:06:36,246 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:06:36,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:36,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:06:36,296 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:06:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:06:36,354 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 10 iterations. [2021-11-23 01:06:36,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:06:36 ImpRootNode [2021-11-23 01:06:36,445 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:06:36,446 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:06:36,447 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:06:36,447 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:06:36,448 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:06:07" (3/4) ... [2021-11-23 01:06:36,458 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 01:06:36,574 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd163690-9390-444c-9185-1881ab893275/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:06:36,574 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:06:36,575 INFO L158 Benchmark]: Toolchain (without parser) took 29521.10ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 82.2MB in the beginning and 59.5MB in the end (delta: 22.8MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2021-11-23 01:06:36,576 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 121.6MB. Free memory is still 98.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:06:36,576 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.82ms. Allocated memory is still 121.6MB. Free memory was 82.0MB in the beginning and 95.8MB in the end (delta: -13.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 01:06:36,577 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.76ms. Allocated memory is still 121.6MB. Free memory was 95.8MB in the beginning and 94.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:06:36,578 INFO L158 Benchmark]: Boogie Preprocessor took 37.13ms. Allocated memory is still 121.6MB. Free memory was 94.2MB in the beginning and 93.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:06:36,579 INFO L158 Benchmark]: RCFGBuilder took 364.60ms. Allocated memory is still 121.6MB. Free memory was 93.2MB in the beginning and 82.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 01:06:36,579 INFO L158 Benchmark]: CodeCheck took 28564.21ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 82.7MB in the beginning and 62.6MB in the end (delta: 20.1MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. [2021-11-23 01:06:36,580 INFO L158 Benchmark]: Witness Printer took 127.78ms. Allocated memory is still 146.8MB. Free memory was 62.6MB in the beginning and 59.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:06:36,585 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: 28.4s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 430 SdHoareTripleChecker+Valid, 41.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 137 mSDsluCounter, 257 SdHoareTripleChecker+Invalid, 40.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 105 mSDsCounter, 472 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1522 IncrementalHoareTripleChecker+Invalid, 1996 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 472 mSolverCounterUnsat, 152 mSDtfsCounter, 1522 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1851 GetRequests, 1647 SyntacticMatches, 56 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8385 ImplicationChecksByTransitivity, 11.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 141 ConstructedInterpolants, 0 QuantifiedInterpolants, 1209 SizeOfPredicates, 20 NumberOfNonLiveVariables, 658 ConjunctsInSsa, 107 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 53/71 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=-1, X=3, x=0, y=0, Y=1] [L31] EXPR counter++ VAL [counter=1, counter++=0, v=-1, x=0, X=3, Y=1, y=0] [L31] COND TRUE counter++<2 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [counter=1, v=-1, x=0, X=3, x=0, x=0, y=0, Y=1] [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=-1, X=3, x=0, x=0, x=0, Y=1, y=0] [L35] COND FALSE !(!(x <= X)) [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y [L45] x++ VAL [counter=1, v=1, x=0, X=3, x=0, x=1, Y=1, y=0, y++=18] [L31] EXPR counter++ VAL [counter=2, counter++=1, v=1, X=3, x=0, x=0, x=1, Y=1, y=0, y++=18] [L31] COND TRUE counter++<2 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [counter=2, v=1, x=1, x=1, x=0, X=3, y=0, Y=1, y++=18] [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=1, x=0, X=3, x=1, x=1, Y=1, y=0, y++=18] [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=-3, x=0, x=1, X=3, x=2, y=1, Y=1, y++=0] [L31] EXPR counter++ VAL [counter=3, counter++=2, v=-3, x=1, X=3, x=2, x=0, Y=1, y=1, y++=0] [L31] COND FALSE !(counter++<2) [L47] xy = (long long) x*y [L48] yx = (long long) Y*x VAL [counter=3, v=-3, X=3, x=2, x=2, x=2, y=1, Y=1, y++=0] [L49] CALL __VERIFIER_assert(2*yx - 2*xy - X + (long long) 2*Y - v + 2*y == 0) VAL [\old(cond)=0, counter=3] [L14] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=3] [L16] reach_error() VAL [\old(cond)=0, cond=0, counter=3] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 121.6MB. Free memory is still 98.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.82ms. Allocated memory is still 121.6MB. Free memory was 82.0MB in the beginning and 95.8MB in the end (delta: -13.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.76ms. Allocated memory is still 121.6MB. Free memory was 95.8MB in the beginning and 94.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.13ms. Allocated memory is still 121.6MB. Free memory was 94.2MB in the beginning and 93.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 364.60ms. Allocated memory is still 121.6MB. Free memory was 93.2MB in the beginning and 82.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 28564.21ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 82.7MB in the beginning and 62.6MB in the end (delta: 20.1MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. * Witness Printer took 127.78ms. Allocated memory is still 146.8MB. Free memory was 62.6MB in the beginning and 59.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 01:06:36,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd163690-9390-444c-9185-1881ab893275/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 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