./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/b.03_assume-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c03b3c7-edc5-469b-a7e7-022edc4c0d8f/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c03b3c7-edc5-469b-a7e7-022edc4c0d8f/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c03b3c7-edc5-469b-a7e7-022edc4c0d8f/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c03b3c7-edc5-469b-a7e7-022edc4c0d8f/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/b.03_assume-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c03b3c7-edc5-469b-a7e7-022edc4c0d8f/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c03b3c7-edc5-469b-a7e7-022edc4c0d8f/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --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 64bit --witnessprinter.graph.data.programhash 1dfda05d3675e1795581ea2bc298236cc0d085a96432f97caff9d055d75a6052 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:01:06,092 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:01:06,156 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c03b3c7-edc5-469b-a7e7-022edc4c0d8f/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-02 23:01:06,161 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:01:06,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:01:06,185 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:01:06,186 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:01:06,186 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:01:06,187 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:01:06,187 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:01:06,188 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:01:06,189 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:01:06,189 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:01:06,189 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:01:06,190 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:01:06,191 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:01:06,191 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:01:06,192 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 23:01:06,192 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 23:01:06,193 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:01:06,193 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:01:06,194 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:01:06,194 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:01:06,195 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:01:06,195 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:01:06,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:01:06,196 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:01:06,197 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:01:06,197 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:01:06,198 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:01:06,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:01:06,198 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:01:06,199 INFO L153 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_2c03b3c7-edc5-469b-a7e7-022edc4c0d8f/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c03b3c7-edc5-469b-a7e7-022edc4c0d8f/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1dfda05d3675e1795581ea2bc298236cc0d085a96432f97caff9d055d75a6052 [2023-12-02 23:01:06,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:01:06,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:01:06,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:01:06,466 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:01:06,466 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:01:06,467 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c03b3c7-edc5-469b-a7e7-022edc4c0d8f/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/termination-memory-alloca/b.03_assume-alloca.i [2023-12-02 23:01:09,167 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:01:09,361 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:01:09,361 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c03b3c7-edc5-469b-a7e7-022edc4c0d8f/sv-benchmarks/c/termination-memory-alloca/b.03_assume-alloca.i [2023-12-02 23:01:09,374 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c03b3c7-edc5-469b-a7e7-022edc4c0d8f/bin/ukojak-verify-Qdu7aM0XO9/data/e11e4a807/3989832479e74a329c95eb3f0f589da0/FLAG30f38fa20 [2023-12-02 23:01:09,386 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c03b3c7-edc5-469b-a7e7-022edc4c0d8f/bin/ukojak-verify-Qdu7aM0XO9/data/e11e4a807/3989832479e74a329c95eb3f0f589da0 [2023-12-02 23:01:09,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:01:09,389 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:01:09,390 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:01:09,390 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:01:09,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:01:09,395 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:01:09" (1/1) ... [2023-12-02 23:01:09,396 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14aea60c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:09, skipping insertion in model container [2023-12-02 23:01:09,396 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:01:09" (1/1) ... [2023-12-02 23:01:09,438 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:01:09,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:01:09,681 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:01:09,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:01:09,747 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:01:09,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:09 WrapperNode [2023-12-02 23:01:09,747 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:01:09,748 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:01:09,749 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:01:09,749 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:01:09,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:09" (1/1) ... [2023-12-02 23:01:09,769 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:09" (1/1) ... [2023-12-02 23:01:09,789 INFO L138 Inliner]: procedures = 111, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 89 [2023-12-02 23:01:09,789 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:01:09,790 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:01:09,790 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:01:09,790 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:01:09,796 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:09" (1/1) ... [2023-12-02 23:01:09,797 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:09" (1/1) ... [2023-12-02 23:01:09,800 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:09" (1/1) ... [2023-12-02 23:01:09,800 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:09" (1/1) ... [2023-12-02 23:01:09,804 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:09" (1/1) ... [2023-12-02 23:01:09,808 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:09" (1/1) ... [2023-12-02 23:01:09,809 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:09" (1/1) ... [2023-12-02 23:01:09,810 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:09" (1/1) ... [2023-12-02 23:01:09,813 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:01:09,814 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:01:09,814 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:01:09,814 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:01:09,815 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:09" (1/1) ... [2023-12-02 23:01:09,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:01:09,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c03b3c7-edc5-469b-a7e7-022edc4c0d8f/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:01:09,844 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c03b3c7-edc5-469b-a7e7-022edc4c0d8f/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:01:09,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c03b3c7-edc5-469b-a7e7-022edc4c0d8f/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:01:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 23:01:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 23:01:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 23:01:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 23:01:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:01:09,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:01:09,967 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:01:09,969 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:01:10,079 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:01:10,123 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:01:10,124 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 23:01:10,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:01:10 BoogieIcfgContainer [2023-12-02 23:01:10,125 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:01:10,126 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:01:10,126 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:01:10,137 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:01:10,137 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:01:10" (1/1) ... [2023-12-02 23:01:10,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:01:10,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:01:10,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2023-12-02 23:01:10,192 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2023-12-02 23:01:10,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 23:01:10,194 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:01:10,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:01:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:10,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:01:10,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:01:10,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2023-12-02 23:01:10,727 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2023-12-02 23:01:10,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 23:01:10,728 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:01:10,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:01:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:10,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:01:11,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:01:11,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2023-12-02 23:01:11,027 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2023-12-02 23:01:11,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 23:01:11,028 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:01:11,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:01:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:11,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:01:11,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:01:11,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 25 states and 34 transitions. [2023-12-02 23:01:11,108 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2023-12-02 23:01:11,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 23:01:11,109 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:01:11,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:01:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:11,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:01:12,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:01:12,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 32 states and 47 transitions. [2023-12-02 23:01:12,122 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 47 transitions. [2023-12-02 23:01:12,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 23:01:12,124 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:01:12,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:01:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:12,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:01:13,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:01:13,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 36 states and 52 transitions. [2023-12-02 23:01:13,209 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 52 transitions. [2023-12-02 23:01:13,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 23:01:13,210 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:01:13,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:01:13,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:13,484 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 23:01:15,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:01:15,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 44 states and 66 transitions. [2023-12-02 23:01:15,336 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 66 transitions. [2023-12-02 23:01:15,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 23:01:15,337 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:01:15,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:01:15,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:15,656 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:01:17,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:01:17,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 51 states and 77 transitions. [2023-12-02 23:01:17,604 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 77 transitions. [2023-12-02 23:01:17,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 23:01:17,605 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:01:17,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:01:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:18,002 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:01:19,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:01:19,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2023-12-02 23:01:19,207 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2023-12-02 23:01:19,207 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 23:01:19,208 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2023-12-02 23:01:19,216 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-12-02 23:01:19,309 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 23:01:19,313 INFO L560 CodeCheckObserver]: Invariant with dag size 19 [2023-12-02 23:01:19,318 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~y_ref~0!base][~y_ref~0!offset] could not be translated [2023-12-02 23:01:19,319 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~x_ref~0!base][~x_ref~0!offset] could not be translated [2023-12-02 23:01:19,320 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~x_ref~0!base][~x_ref~0!offset] could not be translated [2023-12-02 23:01:19,320 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~x_ref~0!base][~x_ref~0!offset] could not be translated [2023-12-02 23:01:19,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 11:01:19 ImpRootNode [2023-12-02 23:01:19,321 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 23:01:19,322 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 23:01:19,322 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 23:01:19,323 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 23:01:19,323 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:01:10" (3/4) ... [2023-12-02 23:01:19,325 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 23:01:19,333 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-12-02 23:01:19,333 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-02 23:01:19,334 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-12-02 23:01:19,334 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 23:01:19,424 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c03b3c7-edc5-469b-a7e7-022edc4c0d8f/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-02 23:01:19,425 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c03b3c7-edc5-469b-a7e7-022edc4c0d8f/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-02 23:01:19,425 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 23:01:19,426 INFO L158 Benchmark]: Toolchain (without parser) took 10036.52ms. Allocated memory was 163.6MB in the beginning and 199.2MB in the end (delta: 35.7MB). Free memory was 119.2MB in the beginning and 72.8MB in the end (delta: 46.4MB). Peak memory consumption was 82.9MB. Max. memory is 16.1GB. [2023-12-02 23:01:19,426 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 98.6MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:01:19,427 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.68ms. Allocated memory is still 163.6MB. Free memory was 119.2MB in the beginning and 103.3MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 23:01:19,427 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.95ms. Allocated memory is still 163.6MB. Free memory was 103.3MB in the beginning and 101.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 23:01:19,428 INFO L158 Benchmark]: Boogie Preprocessor took 23.23ms. Allocated memory is still 163.6MB. Free memory was 101.5MB in the beginning and 99.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 23:01:19,428 INFO L158 Benchmark]: RCFGBuilder took 311.55ms. Allocated memory is still 163.6MB. Free memory was 99.9MB in the beginning and 133.7MB in the end (delta: -33.7MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2023-12-02 23:01:19,428 INFO L158 Benchmark]: CodeCheck took 9195.48ms. Allocated memory was 163.6MB in the beginning and 199.2MB in the end (delta: 35.7MB). Free memory was 133.7MB in the beginning and 78.0MB in the end (delta: 55.6MB). Peak memory consumption was 92.1MB. Max. memory is 16.1GB. [2023-12-02 23:01:19,429 INFO L158 Benchmark]: Witness Printer took 102.89ms. Allocated memory is still 199.2MB. Free memory was 78.0MB in the beginning and 72.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 23:01:19,431 INFO L338 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, 17 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 9.1s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 304 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 219 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 197 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1074 IncrementalHoareTripleChecker+Invalid, 1271 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 197 mSolverCounterUnsat, 54 mSDtfsCounter, 1074 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 775 GetRequests, 589 SyntacticMatches, 18 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12353 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 715 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 4/14 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: 556]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 556]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 560]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 560]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 547]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 556]: Loop Invariant Derived loop invariant: null * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 98.6MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.68ms. Allocated memory is still 163.6MB. Free memory was 119.2MB in the beginning and 103.3MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.95ms. Allocated memory is still 163.6MB. Free memory was 103.3MB in the beginning and 101.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.23ms. Allocated memory is still 163.6MB. Free memory was 101.5MB in the beginning and 99.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 311.55ms. Allocated memory is still 163.6MB. Free memory was 99.9MB in the beginning and 133.7MB in the end (delta: -33.7MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * CodeCheck took 9195.48ms. Allocated memory was 163.6MB in the beginning and 199.2MB in the end (delta: 35.7MB). Free memory was 133.7MB in the beginning and 78.0MB in the end (delta: 55.6MB). Peak memory consumption was 92.1MB. Max. memory is 16.1GB. * Witness Printer took 102.89ms. Allocated memory is still 199.2MB. Free memory was 78.0MB in the beginning and 72.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~y_ref~0!base][~y_ref~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~x_ref~0!base][~x_ref~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~x_ref~0!base][~x_ref~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~x_ref~0!base][~x_ref~0!offset] could not be translated RESULT: Ultimate proved your program to be correct! [2023-12-02 23:01:19,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c03b3c7-edc5-469b-a7e7-022edc4c0d8f/bin/ukojak-verify-Qdu7aM0XO9/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