./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/gcd_4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e31b08d-a6a8-4268-bc15-ffa23f107ddc/bin/ukojak-2xVlg8857e/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e31b08d-a6a8-4268-bc15-ffa23f107ddc/bin/ukojak-2xVlg8857e/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e31b08d-a6a8-4268-bc15-ffa23f107ddc/bin/ukojak-2xVlg8857e/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e31b08d-a6a8-4268-bc15-ffa23f107ddc/bin/ukojak-2xVlg8857e/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e31b08d-a6a8-4268-bc15-ffa23f107ddc/bin/ukojak-2xVlg8857e/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e31b08d-a6a8-4268-bc15-ffa23f107ddc/bin/ukojak-2xVlg8857e --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 679f2fe8d678884423b2dff47bf2c3c7ede0374b3a8bb68f9a9e8a332d8776ef --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 22:46:00,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 22:46:00,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 22:46:00,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 22:46:00,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 22:46:00,711 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 22:46:00,713 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 22:46:00,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 22:46:00,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 22:46:00,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 22:46:00,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 22:46:00,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 22:46:00,733 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 22:46:00,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 22:46:00,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 22:46:00,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 22:46:00,747 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 22:46:00,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 22:46:00,751 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 22:46:00,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 22:46:00,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 22:46:00,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 22:46:00,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 22:46:00,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 22:46:00,774 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 22:46:00,775 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 22:46:00,775 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 22:46:00,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 22:46:00,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 22:46:00,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 22:46:00,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 22:46:00,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 22:46:00,783 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 22:46:00,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 22:46:00,787 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 22:46:00,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 22:46:00,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 22:46:00,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 22:46:00,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 22:46:00,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 22:46:00,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 22:46:00,791 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e31b08d-a6a8-4268-bc15-ffa23f107ddc/bin/ukojak-2xVlg8857e/config/svcomp-Overflow-32bit-Kojak_Default.epf [2021-11-13 22:46:00,845 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 22:46:00,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 22:46:00,847 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 22:46:00,847 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-13 22:46:00,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 22:46:00,849 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 22:46:00,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 22:46:00,849 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 22:46:00,850 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 22:46:00,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 22:46:00,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 22:46:00,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 22:46:00,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 22:46:00,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 22:46:00,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 22:46:00,853 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-13 22:46:00,853 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 22:46:00,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 22:46:00,853 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 22:46:00,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 22:46:00,854 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-13 22:46:00,854 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-13 22:46:00,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 22:46:00,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 22:46:00,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 22:46:00,855 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 22:46:00,855 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 22:46:00,856 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-13 22:46:00,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 22:46:00,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 22:46:00,858 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_7e31b08d-a6a8-4268-bc15-ffa23f107ddc/bin/ukojak-2xVlg8857e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e31b08d-a6a8-4268-bc15-ffa23f107ddc/bin/ukojak-2xVlg8857e Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 679f2fe8d678884423b2dff47bf2c3c7ede0374b3a8bb68f9a9e8a332d8776ef [2021-11-13 22:46:01,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 22:46:01,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 22:46:01,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 22:46:01,221 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 22:46:01,222 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 22:46:01,223 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e31b08d-a6a8-4268-bc15-ffa23f107ddc/bin/ukojak-2xVlg8857e/../../sv-benchmarks/c/bitvector/gcd_4.c [2021-11-13 22:46:01,300 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e31b08d-a6a8-4268-bc15-ffa23f107ddc/bin/ukojak-2xVlg8857e/data/8545be449/5bbfe876da824c16b42da9d139553f3b/FLAG6cd18af16 [2021-11-13 22:46:01,823 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 22:46:01,823 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e31b08d-a6a8-4268-bc15-ffa23f107ddc/sv-benchmarks/c/bitvector/gcd_4.c [2021-11-13 22:46:01,835 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e31b08d-a6a8-4268-bc15-ffa23f107ddc/bin/ukojak-2xVlg8857e/data/8545be449/5bbfe876da824c16b42da9d139553f3b/FLAG6cd18af16 [2021-11-13 22:46:02,193 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e31b08d-a6a8-4268-bc15-ffa23f107ddc/bin/ukojak-2xVlg8857e/data/8545be449/5bbfe876da824c16b42da9d139553f3b [2021-11-13 22:46:02,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 22:46:02,200 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 22:46:02,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 22:46:02,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 22:46:02,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 22:46:02,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:46:02" (1/1) ... [2021-11-13 22:46:02,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@479bbe20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:46:02, skipping insertion in model container [2021-11-13 22:46:02,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:46:02" (1/1) ... [2021-11-13 22:46:02,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 22:46:02,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 22:46:02,421 WARN L228 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_7e31b08d-a6a8-4268-bc15-ffa23f107ddc/sv-benchmarks/c/bitvector/gcd_4.c[662,675] [2021-11-13 22:46:02,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 22:46:02,441 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 22:46:02,454 WARN L228 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_7e31b08d-a6a8-4268-bc15-ffa23f107ddc/sv-benchmarks/c/bitvector/gcd_4.c[662,675] [2021-11-13 22:46:02,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 22:46:02,485 INFO L208 MainTranslator]: Completed translation [2021-11-13 22:46:02,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:46:02 WrapperNode [2021-11-13 22:46:02,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 22:46:02,487 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 22:46:02,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 22:46:02,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 22:46:02,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:46:02" (1/1) ... [2021-11-13 22:46:02,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:46:02" (1/1) ... [2021-11-13 22:46:02,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 22:46:02,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 22:46:02,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 22:46:02,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 22:46:02,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:46:02" (1/1) ... [2021-11-13 22:46:02,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:46:02" (1/1) ... [2021-11-13 22:46:02,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:46:02" (1/1) ... [2021-11-13 22:46:02,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:46:02" (1/1) ... [2021-11-13 22:46:02,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:46:02" (1/1) ... [2021-11-13 22:46:02,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:46:02" (1/1) ... [2021-11-13 22:46:02,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:46:02" (1/1) ... [2021-11-13 22:46:02,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 22:46:02,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 22:46:02,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 22:46:02,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 22:46:02,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:46:02" (1/1) ... [2021-11-13 22:46:02,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 22:46:02,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e31b08d-a6a8-4268-bc15-ffa23f107ddc/bin/ukojak-2xVlg8857e/z3 [2021-11-13 22:46:02,598 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e31b08d-a6a8-4268-bc15-ffa23f107ddc/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-13 22:46:02,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e31b08d-a6a8-4268-bc15-ffa23f107ddc/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-13 22:46:02,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 22:46:02,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 22:46:02,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 22:46:02,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 22:46:02,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-13 22:46:02,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-13 22:46:02,896 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 22:46:02,896 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 22:46:02,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:46:02 BoogieIcfgContainer [2021-11-13 22:46:02,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 22:46:02,900 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-13 22:46:02,900 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-13 22:46:02,911 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-13 22:46:02,912 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:46:02" (1/1) ... [2021-11-13 22:46:02,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 22:46:02,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:02,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 36 transitions. [2021-11-13 22:46:02,998 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2021-11-13 22:46:02,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-13 22:46:02,999 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:03,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:03,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:03,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:03,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2021-11-13 22:46:03,277 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2021-11-13 22:46:03,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 22:46:03,278 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:03,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:03,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:03,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:03,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:03,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2021-11-13 22:46:03,462 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2021-11-13 22:46:03,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 22:46:03,466 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:03,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:03,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:03,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:03,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 25 states and 32 transitions. [2021-11-13 22:46:03,756 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2021-11-13 22:46:03,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 22:46:03,757 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:03,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:03,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:04,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:04,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 28 states and 38 transitions. [2021-11-13 22:46:04,203 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2021-11-13 22:46:04,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 22:46:04,205 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:04,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:04,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:04,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:04,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2021-11-13 22:46:04,372 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2021-11-13 22:46:04,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 22:46:04,373 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:04,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:04,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:04,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:04,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2021-11-13 22:46:04,456 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2021-11-13 22:46:04,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 22:46:04,457 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:04,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:04,572 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:05,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:05,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 30 states and 46 transitions. [2021-11-13 22:46:05,038 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 46 transitions. [2021-11-13 22:46:05,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 22:46:05,039 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:05,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:05,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:05,115 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:05,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:05,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 37 states and 61 transitions. [2021-11-13 22:46:05,702 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 61 transitions. [2021-11-13 22:46:05,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 22:46:05,710 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:05,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:05,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:06,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:06,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 39 states and 64 transitions. [2021-11-13 22:46:06,030 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 64 transitions. [2021-11-13 22:46:06,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-13 22:46:06,031 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:06,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:06,191 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:06,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:06,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 41 states and 67 transitions. [2021-11-13 22:46:06,561 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 67 transitions. [2021-11-13 22:46:06,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-13 22:46:06,562 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:06,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:06,718 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:07,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:07,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 50 states and 85 transitions. [2021-11-13 22:46:07,610 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 85 transitions. [2021-11-13 22:46:07,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-13 22:46:07,611 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:07,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:07,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:07,736 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:08,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:08,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 56 states and 100 transitions. [2021-11-13 22:46:08,471 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 100 transitions. [2021-11-13 22:46:08,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-13 22:46:08,472 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:08,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:08,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:08,627 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:09,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:09,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 60 states and 111 transitions. [2021-11-13 22:46:09,376 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 111 transitions. [2021-11-13 22:46:09,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-13 22:46:09,377 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:09,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:09,403 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:09,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:09,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 61 states and 113 transitions. [2021-11-13 22:46:09,582 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 113 transitions. [2021-11-13 22:46:09,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-13 22:46:09,583 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:09,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:09,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:09,604 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:09,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:09,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 63 states and 118 transitions. [2021-11-13 22:46:09,848 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 118 transitions. [2021-11-13 22:46:09,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 22:46:09,849 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:09,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:10,068 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:10,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:10,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 65 states and 122 transitions. [2021-11-13 22:46:10,521 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 122 transitions. [2021-11-13 22:46:10,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 22:46:10,522 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:10,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:10,685 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-13 22:46:11,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:11,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 67 states and 124 transitions. [2021-11-13 22:46:11,009 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 124 transitions. [2021-11-13 22:46:11,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 22:46:11,010 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:11,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:11,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:11,197 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:12,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:12,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 71 states and 134 transitions. [2021-11-13 22:46:12,051 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 134 transitions. [2021-11-13 22:46:12,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 22:46:12,052 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:12,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:12,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:12,249 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:12,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:12,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 76 states and 147 transitions. [2021-11-13 22:46:12,880 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 147 transitions. [2021-11-13 22:46:12,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 22:46:12,880 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:12,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:12,942 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:13,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:13,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 78 states and 152 transitions. [2021-11-13 22:46:13,188 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 152 transitions. [2021-11-13 22:46:13,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 22:46:13,189 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:13,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:13,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:13,223 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:13,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:13,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 80 states and 158 transitions. [2021-11-13 22:46:13,468 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 158 transitions. [2021-11-13 22:46:13,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-13 22:46:13,469 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:13,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:13,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:13,645 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-13 22:46:14,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:14,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 89 states and 172 transitions. [2021-11-13 22:46:14,969 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 172 transitions. [2021-11-13 22:46:14,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-13 22:46:14,970 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:14,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:14,997 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 22:46:15,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:15,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 93 states and 178 transitions. [2021-11-13 22:46:15,607 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 178 transitions. [2021-11-13 22:46:15,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-13 22:46:15,607 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:15,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:15,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:15,912 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:17,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:17,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 101 states and 199 transitions. [2021-11-13 22:46:17,567 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 199 transitions. [2021-11-13 22:46:17,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-13 22:46:17,568 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:17,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:17,595 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:18,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:18,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 104 states and 204 transitions. [2021-11-13 22:46:18,147 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 204 transitions. [2021-11-13 22:46:18,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 22:46:18,148 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:18,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:18,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:18,581 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:19,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:19,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 108 states and 215 transitions. [2021-11-13 22:46:19,751 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 215 transitions. [2021-11-13 22:46:19,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 22:46:19,752 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:19,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:19,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:19,776 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 31 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-13 22:46:20,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:20,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 112 states and 222 transitions. [2021-11-13 22:46:20,423 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 222 transitions. [2021-11-13 22:46:20,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 22:46:20,424 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:20,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:20,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:20,866 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:21,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:21,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 115 states and 233 transitions. [2021-11-13 22:46:21,743 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 233 transitions. [2021-11-13 22:46:21,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 22:46:21,744 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:21,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:21,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:22,115 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 17 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:23,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:23,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 119 states and 247 transitions. [2021-11-13 22:46:23,214 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 247 transitions. [2021-11-13 22:46:23,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 22:46:23,215 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:23,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:23,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:23,243 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:23,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:23,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 122 states and 256 transitions. [2021-11-13 22:46:23,843 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 256 transitions. [2021-11-13 22:46:23,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 22:46:23,844 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:23,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:23,873 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:24,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:24,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 125 states and 262 transitions. [2021-11-13 22:46:24,516 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 262 transitions. [2021-11-13 22:46:24,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 22:46:24,517 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:24,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:24,544 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:24,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:24,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 126 states and 265 transitions. [2021-11-13 22:46:24,930 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 265 transitions. [2021-11-13 22:46:24,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 22:46:24,934 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:24,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:24,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:24,973 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:25,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:25,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 127 states and 266 transitions. [2021-11-13 22:46:25,353 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 266 transitions. [2021-11-13 22:46:25,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-13 22:46:25,354 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:25,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:25,801 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 24 proven. 42 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 22:46:26,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:26,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 129 states and 274 transitions. [2021-11-13 22:46:26,552 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 274 transitions. [2021-11-13 22:46:26,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-13 22:46:26,553 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:26,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:26,847 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-13 22:46:28,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:28,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 134 states and 285 transitions. [2021-11-13 22:46:28,082 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 285 transitions. [2021-11-13 22:46:28,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-13 22:46:28,083 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:28,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:28,111 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 18 proven. 38 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 22:46:28,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:28,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 137 states and 291 transitions. [2021-11-13 22:46:28,979 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 291 transitions. [2021-11-13 22:46:28,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-13 22:46:28,980 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:28,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:29,028 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-13 22:46:29,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:29,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 140 states and 294 transitions. [2021-11-13 22:46:29,764 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 294 transitions. [2021-11-13 22:46:29,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-13 22:46:29,764 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:29,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:30,297 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 22 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:46:31,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:31,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 143 states and 298 transitions. [2021-11-13 22:46:31,393 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 298 transitions. [2021-11-13 22:46:31,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-13 22:46:31,394 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:31,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:31,550 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-13 22:46:32,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:32,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 145 states and 303 transitions. [2021-11-13 22:46:32,103 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 303 transitions. [2021-11-13 22:46:32,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-13 22:46:32,105 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:46:32,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:46:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:46:32,904 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 27 proven. 74 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 22:46:35,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:46:35,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 33 states and 34 transitions. [2021-11-13 22:46:35,141 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2021-11-13 22:46:35,141 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 22:46:35,141 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 41 iterations. [2021-11-13 22:46:35,149 INFO L754 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2021-11-13 22:46:35,264 INFO L560 CodeCheckObserver]: Invariant with dag size 41 [2021-11-13 22:46:35,283 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-13 22:46:35,283 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-13 22:46:35,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:46:35 ImpRootNode [2021-11-13 22:46:35,284 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-13 22:46:35,284 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 22:46:35,284 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 22:46:35,285 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 22:46:35,285 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:46:02" (3/4) ... [2021-11-13 22:46:35,294 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 22:46:35,300 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-13 22:46:35,308 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2021-11-13 22:46:35,308 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-13 22:46:35,309 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-13 22:46:35,309 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 22:46:35,361 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e31b08d-a6a8-4268-bc15-ffa23f107ddc/bin/ukojak-2xVlg8857e/witness.graphml [2021-11-13 22:46:35,361 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 22:46:35,362 INFO L158 Benchmark]: Toolchain (without parser) took 33161.81ms. Allocated memory was 107.0MB in the beginning and 327.2MB in the end (delta: 220.2MB). Free memory was 75.8MB in the beginning and 99.3MB in the end (delta: -23.5MB). Peak memory consumption was 197.0MB. Max. memory is 16.1GB. [2021-11-13 22:46:35,363 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory is still 60.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 22:46:35,363 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.92ms. Allocated memory is still 107.0MB. Free memory was 75.5MB in the beginning and 82.5MB in the end (delta: -6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 22:46:35,363 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.53ms. Allocated memory is still 107.0MB. Free memory was 82.5MB in the beginning and 80.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 22:46:35,364 INFO L158 Benchmark]: Boogie Preprocessor took 21.40ms. Allocated memory is still 107.0MB. Free memory was 80.7MB in the beginning and 79.8MB in the end (delta: 896.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 22:46:35,364 INFO L158 Benchmark]: RCFGBuilder took 338.98ms. Allocated memory is still 107.0MB. Free memory was 79.8MB in the beginning and 68.6MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 22:46:35,365 INFO L158 Benchmark]: CodeCheck took 32383.75ms. Allocated memory was 107.0MB in the beginning and 327.2MB in the end (delta: 220.2MB). Free memory was 68.6MB in the beginning and 102.4MB in the end (delta: -33.8MB). Peak memory consumption was 187.5MB. Max. memory is 16.1GB. [2021-11-13 22:46:35,365 INFO L158 Benchmark]: Witness Printer took 77.30ms. Allocated memory is still 327.2MB. Free memory was 102.4MB in the beginning and 99.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 22:46:35,368 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, 30 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 32.2s, OverallIterations: 41, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6961 SdHoareTripleChecker+Valid, 34985.21ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6393 mSDsluCounter, 158 SdHoareTripleChecker+Invalid, 28125.99ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 78 mSDsCounter, 3937 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26598 IncrementalHoareTripleChecker+Invalid, 30535 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3937 mSolverCounterUnsat, 80 mSDtfsCounter, 26598 mSolverCounterSat, 455.56ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8509 GetRequests, 7453 SyntacticMatches, 566 SemanticMatches, 490 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142844 ImplicationChecksByTransitivity, 28.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 815 NumberOfCodeBlocks, 815 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 775 ConstructedInterpolants, 0 QuantifiedInterpolants, 4617 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 40 InterpolantComputations, 7 PerfectInterpolantSequences, 251/1120 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 - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((((((2 * b + 9 <= a && a + 9 <= 3 * b) && b <= 18) || (((63 <= a && 18 <= b) && a <= 63) && b <= 18)) || ((b + 9 <= 2 * a && a + 9 <= 2 * b) && a <= 9)) || ((b + 9 <= 3 * a && a + 9 <= b) && 3 * b + a <= 63)) || ((a <= 3 * b + 9 && b <= 0) && 2 * b + 9 <= a)) || ((a + 2 * b <= 63 && b + 9 <= a) && a + 9 <= 2 * b) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory is still 60.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.92ms. Allocated memory is still 107.0MB. Free memory was 75.5MB in the beginning and 82.5MB in the end (delta: -6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.53ms. Allocated memory is still 107.0MB. Free memory was 82.5MB in the beginning and 80.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.40ms. Allocated memory is still 107.0MB. Free memory was 80.7MB in the beginning and 79.8MB in the end (delta: 896.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 338.98ms. Allocated memory is still 107.0MB. Free memory was 79.8MB in the beginning and 68.6MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 32383.75ms. Allocated memory was 107.0MB in the beginning and 327.2MB in the end (delta: 220.2MB). Free memory was 68.6MB in the beginning and 102.4MB in the end (delta: -33.8MB). Peak memory consumption was 187.5MB. Max. memory is 16.1GB. * Witness Printer took 77.30ms. Allocated memory is still 327.2MB. Free memory was 102.4MB in the beginning and 99.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-13 22:46:35,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e31b08d-a6a8-4268-bc15-ffa23f107ddc/bin/ukojak-2xVlg8857e/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 Result: TRUE