./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test26-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e004fc8-baac-45d1-87dc-ecc4942effda/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e004fc8-baac-45d1-87dc-ecc4942effda/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e004fc8-baac-45d1-87dc-ecc4942effda/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e004fc8-baac-45d1-87dc-ecc4942effda/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test26-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e004fc8-baac-45d1-87dc-ecc4942effda/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e004fc8-baac-45d1-87dc-ecc4942effda/bin/ukojak-92XMlrwhuB --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 6e16a9039af683ff71136e4fdf1d6e681546010da6b9063cc41cb578540720f5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:47:55,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:47:55,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:47:55,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:47:55,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:47:55,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:47:55,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:47:55,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:47:55,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:47:55,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:47:55,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:47:55,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:47:55,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:47:55,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:47:55,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:47:55,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:47:55,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:47:55,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:47:55,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:47:55,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:47:55,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:47:55,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:47:55,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:47:55,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:47:55,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:47:55,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:47:55,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:47:55,601 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:47:55,602 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:47:55,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:47:55,603 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:47:55,604 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:47:55,605 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:47:55,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:47:55,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:47:55,608 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:47:55,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:47:55,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:47:55,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:47:55,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:47:55,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:47:55,613 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e004fc8-baac-45d1-87dc-ecc4942effda/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:47:55,640 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:47:55,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:47:55,641 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:47:55,642 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:47:55,642 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:47:55,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:47:55,643 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:47:55,643 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:47:55,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:47:55,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:47:55,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:47:55,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:47:55,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:47:55,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:47:55,644 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:47:55,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:47:55,645 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:47:55,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:47:55,645 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:47:55,645 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:47:55,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:47:55,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:47:55,646 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:47:55,646 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:47:55,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:47:55,647 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:47:55,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:47:55,647 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:47:55,647 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_8e004fc8-baac-45d1-87dc-ecc4942effda/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e004fc8-baac-45d1-87dc-ecc4942effda/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e16a9039af683ff71136e4fdf1d6e681546010da6b9063cc41cb578540720f5 [2022-10-17 16:47:55,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:47:55,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:47:55,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:47:55,933 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:47:55,934 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:47:55,936 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e004fc8-baac-45d1-87dc-ecc4942effda/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/ldv-regression/test26-1.c [2022-10-17 16:47:56,015 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e004fc8-baac-45d1-87dc-ecc4942effda/bin/ukojak-92XMlrwhuB/data/8a36eb6b1/8ec3de09638b4f74bf1cbd97ef07edc1/FLAG25369ff13 [2022-10-17 16:47:56,403 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:47:56,404 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e004fc8-baac-45d1-87dc-ecc4942effda/sv-benchmarks/c/ldv-regression/test26-1.c [2022-10-17 16:47:56,410 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e004fc8-baac-45d1-87dc-ecc4942effda/bin/ukojak-92XMlrwhuB/data/8a36eb6b1/8ec3de09638b4f74bf1cbd97ef07edc1/FLAG25369ff13 [2022-10-17 16:47:56,791 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e004fc8-baac-45d1-87dc-ecc4942effda/bin/ukojak-92XMlrwhuB/data/8a36eb6b1/8ec3de09638b4f74bf1cbd97ef07edc1 [2022-10-17 16:47:56,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:47:56,795 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:47:56,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:47:56,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:47:56,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:47:56,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:47:56" (1/1) ... [2022-10-17 16:47:56,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29ad61f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:56, skipping insertion in model container [2022-10-17 16:47:56,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:47:56" (1/1) ... [2022-10-17 16:47:56,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:47:56,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:47:57,006 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_8e004fc8-baac-45d1-87dc-ecc4942effda/sv-benchmarks/c/ldv-regression/test26-1.c[493,506] [2022-10-17 16:47:57,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:47:57,018 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:47:57,032 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_8e004fc8-baac-45d1-87dc-ecc4942effda/sv-benchmarks/c/ldv-regression/test26-1.c[493,506] [2022-10-17 16:47:57,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:47:57,050 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:47:57,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:57 WrapperNode [2022-10-17 16:47:57,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:47:57,052 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:47:57,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:47:57,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:47:57,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:57" (1/1) ... [2022-10-17 16:47:57,067 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:57" (1/1) ... [2022-10-17 16:47:57,085 INFO L138 Inliner]: procedures = 12, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2022-10-17 16:47:57,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:47:57,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:47:57,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:47:57,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:47:57,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:57" (1/1) ... [2022-10-17 16:47:57,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:57" (1/1) ... [2022-10-17 16:47:57,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:57" (1/1) ... [2022-10-17 16:47:57,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:57" (1/1) ... [2022-10-17 16:47:57,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:57" (1/1) ... [2022-10-17 16:47:57,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:57" (1/1) ... [2022-10-17 16:47:57,105 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:57" (1/1) ... [2022-10-17 16:47:57,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:57" (1/1) ... [2022-10-17 16:47:57,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:47:57,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:47:57,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:47:57,109 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:47:57,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:57" (1/1) ... [2022-10-17 16:47:57,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:47:57,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e004fc8-baac-45d1-87dc-ecc4942effda/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:47:57,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e004fc8-baac-45d1-87dc-ecc4942effda/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:47:57,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e004fc8-baac-45d1-87dc-ecc4942effda/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:47:57,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:47:57,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:47:57,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:47:57,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:47:57,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:47:57,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:47:57,278 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:47:57,280 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:47:57,430 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:47:57,476 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:47:57,477 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:47:57,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:47:57 BoogieIcfgContainer [2022-10-17 16:47:57,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:47:57,482 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:47:57,482 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:47:57,493 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:47:57,493 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:47:57" (1/1) ... [2022-10-17 16:47:57,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:47:57,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:47:57,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2022-10-17 16:47:57,579 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2022-10-17 16:47:57,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 16:47:57,581 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:47:57,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:47:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:47:58,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:47:58,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:47:58,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 4 states and 3 transitions. [2022-10-17 16:47:58,140 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2022-10-17 16:47:58,140 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 16:47:58,141 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2022-10-17 16:47:58,150 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-10-17 16:47:58,157 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:47:58,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:47:58 ImpRootNode [2022-10-17 16:47:58,162 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:47:58,163 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:47:58,163 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:47:58,163 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:47:58,163 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:47:57" (3/4) ... [2022-10-17 16:47:58,166 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:47:58,177 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-10-17 16:47:58,177 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-10-17 16:47:58,177 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-10-17 16:47:58,177 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 16:47:58,220 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e004fc8-baac-45d1-87dc-ecc4942effda/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:47:58,221 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:47:58,222 INFO L158 Benchmark]: Toolchain (without parser) took 1426.44ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 53.1MB in the beginning and 82.8MB in the end (delta: -29.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:47:58,223 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 90.2MB. Free memory was 69.6MB in the beginning and 69.5MB in the end (delta: 94.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:47:58,224 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.07ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 52.9MB in the beginning and 95.8MB in the end (delta: -42.9MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2022-10-17 16:47:58,235 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.74ms. Allocated memory is still 119.5MB. Free memory was 95.8MB in the beginning and 94.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:47:58,236 INFO L158 Benchmark]: Boogie Preprocessor took 21.62ms. Allocated memory is still 119.5MB. Free memory was 94.1MB in the beginning and 93.3MB in the end (delta: 848.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:47:58,237 INFO L158 Benchmark]: RCFGBuilder took 371.46ms. Allocated memory is still 119.5MB. Free memory was 93.3MB in the beginning and 83.0MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:47:58,238 INFO L158 Benchmark]: CodeCheck took 680.24ms. Allocated memory is still 119.5MB. Free memory was 83.0MB in the beginning and 85.4MB in the end (delta: -2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:47:58,239 INFO L158 Benchmark]: Witness Printer took 58.13ms. Allocated memory is still 119.5MB. Free memory was 85.4MB in the beginning and 82.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:47:58,246 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 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 1 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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: 26]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 90.2MB. Free memory was 69.6MB in the beginning and 69.5MB in the end (delta: 94.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.07ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 52.9MB in the beginning and 95.8MB in the end (delta: -42.9MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.74ms. Allocated memory is still 119.5MB. Free memory was 95.8MB in the beginning and 94.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.62ms. Allocated memory is still 119.5MB. Free memory was 94.1MB in the beginning and 93.3MB in the end (delta: 848.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 371.46ms. Allocated memory is still 119.5MB. Free memory was 93.3MB in the beginning and 83.0MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 680.24ms. Allocated memory is still 119.5MB. Free memory was 83.0MB in the beginning and 85.4MB in the end (delta: -2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 58.13ms. Allocated memory is still 119.5MB. Free memory was 85.4MB in the beginning and 82.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 16:47:58,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e004fc8-baac-45d1-87dc-ecc4942effda/bin/ukojak-92XMlrwhuB/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