./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/alt_test.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_1b356c87-2aa3-402c-adf6-b26fffab394d/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b356c87-2aa3-402c-adf6-b26fffab394d/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_1b356c87-2aa3-402c-adf6-b26fffab394d/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b356c87-2aa3-402c-adf6-b26fffab394d/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/alt_test.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b356c87-2aa3-402c-adf6-b26fffab394d/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b356c87-2aa3-402c-adf6-b26fffab394d/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --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 6bafd9f9c248bc8b929fd553117dceb5cafdbf12cfc108f50311933c849ac186 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:12:34,710 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:12:34,773 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b356c87-2aa3-402c-adf6-b26fffab394d/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 03:12:34,777 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 03:12:34,778 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 03:12:34,799 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:12:34,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:12:34,800 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:12:34,801 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:12:34,802 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:12:34,802 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:12:34,803 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:12:34,803 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 03:12:34,804 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 03:12:34,804 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 03:12:34,805 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:12:34,805 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:12:34,806 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:12:34,806 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:12:34,807 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 03:12:34,807 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:12:34,808 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:12:34,809 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:12:34,809 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:12:34,810 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:12:34,810 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:12:34,811 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:12:34,811 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:12:34,812 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:12:34,812 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:12:34,813 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 03:12:34,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 03:12:34,813 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:12:34,814 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_1b356c87-2aa3-402c-adf6-b26fffab394d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b356c87-2aa3-402c-adf6-b26fffab394d/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6bafd9f9c248bc8b929fd553117dceb5cafdbf12cfc108f50311933c849ac186 [2023-12-03 03:12:35,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:12:35,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:12:35,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:12:35,039 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:12:35,040 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:12:35,041 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b356c87-2aa3-402c-adf6-b26fffab394d/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/ldv-regression/alt_test.i [2023-12-03 03:12:37,848 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:12:38,081 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:12:38,082 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b356c87-2aa3-402c-adf6-b26fffab394d/sv-benchmarks/c/ldv-regression/alt_test.i [2023-12-03 03:12:38,095 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b356c87-2aa3-402c-adf6-b26fffab394d/bin/ukojak-verify-Qdu7aM0XO9/data/1328c1ccb/983c0a56f9bd4d0a90562ab23a7ce107/FLAG0a7daac1f [2023-12-03 03:12:38,108 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b356c87-2aa3-402c-adf6-b26fffab394d/bin/ukojak-verify-Qdu7aM0XO9/data/1328c1ccb/983c0a56f9bd4d0a90562ab23a7ce107 [2023-12-03 03:12:38,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:12:38,111 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:12:38,113 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:12:38,113 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:12:38,117 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:12:38,117 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:12:38" (1/1) ... [2023-12-03 03:12:38,118 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cb01ffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:12:38, skipping insertion in model container [2023-12-03 03:12:38,119 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:12:38" (1/1) ... [2023-12-03 03:12:38,160 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:12:38,389 WARN L240 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_1b356c87-2aa3-402c-adf6-b26fffab394d/sv-benchmarks/c/ldv-regression/alt_test.i[22285,22298] [2023-12-03 03:12:38,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:12:38,411 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:12:38,443 WARN L240 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_1b356c87-2aa3-402c-adf6-b26fffab394d/sv-benchmarks/c/ldv-regression/alt_test.i[22285,22298] [2023-12-03 03:12:38,447 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:12:38,471 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:12:38,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:12:38 WrapperNode [2023-12-03 03:12:38,471 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:12:38,472 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:12:38,473 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:12:38,473 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:12:38,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:12:38" (1/1) ... [2023-12-03 03:12:38,490 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:12:38" (1/1) ... [2023-12-03 03:12:38,506 INFO L138 Inliner]: procedures = 121, calls = 13, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 35 [2023-12-03 03:12:38,507 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:12:38,507 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:12:38,507 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:12:38,508 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:12:38,514 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:12:38" (1/1) ... [2023-12-03 03:12:38,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:12:38" (1/1) ... [2023-12-03 03:12:38,517 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:12:38" (1/1) ... [2023-12-03 03:12:38,517 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:12:38" (1/1) ... [2023-12-03 03:12:38,522 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:12:38" (1/1) ... [2023-12-03 03:12:38,524 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:12:38" (1/1) ... [2023-12-03 03:12:38,525 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:12:38" (1/1) ... [2023-12-03 03:12:38,526 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:12:38" (1/1) ... [2023-12-03 03:12:38,528 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:12:38,529 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:12:38,530 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:12:38,530 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:12:38,531 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:12:38" (1/1) ... [2023-12-03 03:12:38,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:12:38,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b356c87-2aa3-402c-adf6-b26fffab394d/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:12:38,559 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b356c87-2aa3-402c-adf6-b26fffab394d/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:12:38,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b356c87-2aa3-402c-adf6-b26fffab394d/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:12:38,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-03 03:12:38,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:12:38,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 03:12:38,599 INFO L130 BoogieDeclarations]: Found specification of procedure l_free [2023-12-03 03:12:38,599 INFO L138 BoogieDeclarations]: Found implementation of procedure l_free [2023-12-03 03:12:38,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 03:12:38,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:12:38,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:12:38,688 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:12:38,690 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:12:38,787 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:12:38,855 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:12:38,855 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 03:12:38,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:12:38 BoogieIcfgContainer [2023-12-03 03:12:38,856 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:12:38,857 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:12:38,857 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:12:38,866 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:12:38,867 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:12:38" (1/1) ... [2023-12-03 03:12:38,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:12:38,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:12:38,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-12-03 03:12:38,926 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-12-03 03:12:38,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 03:12:38,930 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:12:38,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:12:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:12:39,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:12:39,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:12:39,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 17 transitions. [2023-12-03 03:12:39,183 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-12-03 03:12:39,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-03 03:12:39,185 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:12:39,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:12:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:12:39,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:12:39,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:12:39,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 21 transitions. [2023-12-03 03:12:39,484 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2023-12-03 03:12:39,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 03:12:39,485 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:12:39,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:12:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:12:39,506 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:12:39,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:12:39,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:12:39,564 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:12:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:12:39,587 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2023-12-03 03:12:39,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 03:12:39 ImpRootNode [2023-12-03 03:12:39,614 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 03:12:39,615 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 03:12:39,615 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 03:12:39,615 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 03:12:39,615 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:12:38" (3/4) ... [2023-12-03 03:12:39,616 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-12-03 03:12:39,657 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b356c87-2aa3-402c-adf6-b26fffab394d/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 03:12:39,657 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 03:12:39,658 INFO L158 Benchmark]: Toolchain (without parser) took 1546.24ms. Allocated memory is still 161.5MB. Free memory was 117.0MB in the beginning and 88.9MB in the end (delta: 28.1MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2023-12-03 03:12:39,658 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 102.8MB. Free memory is still 50.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:12:39,659 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.06ms. Allocated memory is still 161.5MB. Free memory was 117.0MB in the beginning and 100.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 03:12:39,659 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.46ms. Allocated memory is still 161.5MB. Free memory was 100.2MB in the beginning and 98.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:12:39,660 INFO L158 Benchmark]: Boogie Preprocessor took 21.33ms. Allocated memory is still 161.5MB. Free memory was 98.6MB in the beginning and 97.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:12:39,660 INFO L158 Benchmark]: RCFGBuilder took 327.12ms. Allocated memory is still 161.5MB. Free memory was 97.3MB in the beginning and 130.9MB in the end (delta: -33.6MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2023-12-03 03:12:39,660 INFO L158 Benchmark]: CodeCheck took 756.58ms. Allocated memory is still 161.5MB. Free memory was 130.9MB in the beginning and 91.0MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-12-03 03:12:39,661 INFO L158 Benchmark]: Witness Printer took 42.53ms. Allocated memory is still 161.5MB. Free memory was 91.0MB in the beginning and 88.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:12:39,663 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 2 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 24 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 516]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L518] int globalState = 0; [L523] CALL, EXPR l_malloc(sizeof(int)) [L529] void *retVal = malloc(size); [L530] COND TRUE retVal != ((void *)0) [L531] globalState=1 [L532] return retVal; [L523] RET, EXPR l_malloc(sizeof(int)) [L523] int *a = (int*) l_malloc(sizeof(int)); [L524] CALL l_free(a) VAL [\old(globalState)=1, globalState=1] [L535] COND TRUE ptr!=((void *)0) VAL [\old(globalState)=1, globalState=1, ptr={21239:0}, ptr={21239:0}] [L535] (globalState == 1) ? (0) : __blast_assert () VAL [\old(globalState)=1, globalState=1, ptr={21239:0}, ptr={21239:0}] [L536] globalState = 0 [L524] RET l_free(a) VAL [\old(argc)=7, a={21239:0}, argc=7, argv={14:15}, globalState=0] [L525] CALL l_free(a) VAL [\old(globalState)=0, globalState=0] [L535] COND TRUE ptr!=((void *)0) VAL [\old(globalState)=0, globalState=0, ptr={21239:0}, ptr={21239:0}] [L535] (globalState == 1) ? (0) : __blast_assert () [L535] CALL __blast_assert () [L516] reach_error() VAL [\old(globalState)=0, globalState=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 102.8MB. Free memory is still 50.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.06ms. Allocated memory is still 161.5MB. Free memory was 117.0MB in the beginning and 100.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.46ms. Allocated memory is still 161.5MB. Free memory was 100.2MB in the beginning and 98.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.33ms. Allocated memory is still 161.5MB. Free memory was 98.6MB in the beginning and 97.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 327.12ms. Allocated memory is still 161.5MB. Free memory was 97.3MB in the beginning and 130.9MB in the end (delta: -33.6MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. * CodeCheck took 756.58ms. Allocated memory is still 161.5MB. Free memory was 130.9MB in the beginning and 91.0MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 42.53ms. Allocated memory is still 161.5MB. Free memory was 91.0MB in the beginning and 88.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-12-03 03:12:39,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b356c87-2aa3-402c-adf6-b26fffab394d/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE