./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC --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 32bit --witnessprinter.graph.data.programhash c8425a5d05ac446a6871721d80167c62d0d4f36c759d59becfd4b9bf0feba487 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 19:57:19,705 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 19:57:19,803 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-23 19:57:19,809 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 19:57:19,810 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 19:57:19,856 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 19:57:19,858 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 19:57:19,858 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 19:57:19,859 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 19:57:19,860 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 19:57:19,861 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 19:57:19,862 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 19:57:19,862 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 19:57:19,863 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 19:57:19,864 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 19:57:19,864 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 19:57:19,865 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 19:57:19,866 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 19:57:19,866 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 19:57:19,867 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 19:57:19,868 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 19:57:19,869 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 19:57:19,870 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 19:57:19,870 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 19:57:19,871 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 19:57:19,872 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 19:57:19,872 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 19:57:19,873 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 19:57:19,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 19:57:19,874 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 19:57:19,875 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 19:57:19,875 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 19:57:19,876 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 19:57:19,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 19:57:19,877 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 19:57:19,877 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_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8425a5d05ac446a6871721d80167c62d0d4f36c759d59becfd4b9bf0feba487 [2023-11-23 19:57:20,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 19:57:20,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 19:57:20,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 19:57:20,252 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 19:57:20,252 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 19:57:20,254 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound20.c [2023-11-23 19:57:23,338 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 19:57:23,629 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 19:57:23,629 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound20.c [2023-11-23 19:57:23,638 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/data/45cda7c4f/5cc5e3ee64d94be8952acb3726773317/FLAG531443ecf [2023-11-23 19:57:23,652 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/data/45cda7c4f/5cc5e3ee64d94be8952acb3726773317 [2023-11-23 19:57:23,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 19:57:23,657 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 19:57:23,658 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 19:57:23,658 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 19:57:23,664 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 19:57:23,665 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:57:23" (1/1) ... [2023-11-23 19:57:23,666 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12559f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:23, skipping insertion in model container [2023-11-23 19:57:23,667 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:57:23" (1/1) ... [2023-11-23 19:57:23,693 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 19:57:23,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 19:57:23,910 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 19:57:23,944 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 19:57:23,984 INFO L206 MainTranslator]: Completed translation [2023-11-23 19:57:23,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:23 WrapperNode [2023-11-23 19:57:23,985 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 19:57:23,987 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 19:57:23,987 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 19:57:23,987 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 19:57:23,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:23" (1/1) ... [2023-11-23 19:57:24,029 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:23" (1/1) ... [2023-11-23 19:57:24,089 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 109 [2023-11-23 19:57:24,104 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 19:57:24,105 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 19:57:24,106 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 19:57:24,106 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 19:57:24,117 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:23" (1/1) ... [2023-11-23 19:57:24,120 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:23" (1/1) ... [2023-11-23 19:57:24,123 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:23" (1/1) ... [2023-11-23 19:57:24,124 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:23" (1/1) ... [2023-11-23 19:57:24,132 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:23" (1/1) ... [2023-11-23 19:57:24,135 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:23" (1/1) ... [2023-11-23 19:57:24,138 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:23" (1/1) ... [2023-11-23 19:57:24,139 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:23" (1/1) ... [2023-11-23 19:57:24,142 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 19:57:24,143 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 19:57:24,144 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 19:57:24,144 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 19:57:24,145 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:23" (1/1) ... [2023-11-23 19:57:24,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 19:57:24,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 19:57:24,182 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 19:57:24,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 19:57:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 19:57:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 19:57:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 19:57:24,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 19:57:24,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 19:57:24,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 19:57:24,357 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 19:57:24,360 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 19:57:24,975 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 19:57:25,018 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 19:57:25,018 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 19:57:25,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:57:25 BoogieIcfgContainer [2023-11-23 19:57:25,020 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 19:57:25,021 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 19:57:25,021 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 19:57:25,031 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 19:57:25,032 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:57:25" (1/1) ... [2023-11-23 19:57:25,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 19:57:25,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:57:25,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 138 states and 145 transitions. [2023-11-23 19:57:25,106 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 145 transitions. [2023-11-23 19:57:25,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-23 19:57:25,108 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:57:25,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 19:57:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:57:25,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 19:57:25,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:57:25,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 140 states and 147 transitions. [2023-11-23 19:57:25,375 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 147 transitions. [2023-11-23 19:57:25,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 19:57:25,375 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:57:25,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 19:57:25,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:57:25,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 19:57:25,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:57:25,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 141 states and 148 transitions. [2023-11-23 19:57:25,440 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 148 transitions. [2023-11-23 19:57:25,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 19:57:25,440 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:57:25,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 19:57:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:57:25,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 19:57:25,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:57:25,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 146 states and 156 transitions. [2023-11-23 19:57:25,621 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 156 transitions. [2023-11-23 19:57:25,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 19:57:25,622 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:57:25,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 19:57:25,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:57:25,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 19:57:25,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:57:25,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 147 states and 157 transitions. [2023-11-23 19:57:25,711 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 157 transitions. [2023-11-23 19:57:25,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 19:57:25,712 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:57:25,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 19:57:25,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:57:25,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 19:57:25,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:57:25,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 148 states and 158 transitions. [2023-11-23 19:57:25,772 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 158 transitions. [2023-11-23 19:57:25,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 19:57:25,772 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:57:25,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 19:57:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:57:25,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 19:57:25,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:57:25,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 147 states and 157 transitions. [2023-11-23 19:57:25,799 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 157 transitions. [2023-11-23 19:57:25,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 19:57:25,800 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:57:25,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 19:57:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:57:25,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 19:57:25,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 19:57:25,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 19:57:25,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:57:25,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 149 states and 159 transitions. [2023-11-23 19:57:25,876 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 159 transitions. [2023-11-23 19:57:25,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 19:57:25,877 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:57:25,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 19:57:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 19:57:25,898 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 19:57:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 19:57:25,916 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 8 iterations. [2023-11-23 19:57:25,955 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post5 could not be translated [2023-11-23 19:57:25,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 07:57:25 ImpRootNode [2023-11-23 19:57:25,962 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 19:57:25,963 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 19:57:25,963 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 19:57:25,964 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 19:57:25,964 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:57:25" (3/4) ... [2023-11-23 19:57:25,967 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 19:57:25,968 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 19:57:25,970 INFO L158 Benchmark]: Toolchain (without parser) took 2312.22ms. Allocated memory is still 169.9MB. Free memory was 139.5MB in the beginning and 137.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. [2023-11-23 19:57:25,970 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory is still 95.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 19:57:25,972 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.45ms. Allocated memory is still 169.9MB. Free memory was 139.5MB in the beginning and 138.1MB in the end (delta: 1.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 19:57:25,973 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.23ms. Allocated memory is still 169.9MB. Free memory was 138.1MB in the beginning and 136.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 19:57:25,975 INFO L158 Benchmark]: Boogie Preprocessor took 37.24ms. Allocated memory is still 169.9MB. Free memory was 136.2MB in the beginning and 134.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 19:57:25,976 INFO L158 Benchmark]: RCFGBuilder took 876.87ms. Allocated memory is still 169.9MB. Free memory was 134.1MB in the beginning and 112.3MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-23 19:57:25,982 INFO L158 Benchmark]: CodeCheck took 941.05ms. Allocated memory is still 169.9MB. Free memory was 112.3MB in the beginning and 137.4MB in the end (delta: -25.2MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. [2023-11-23 19:57:25,983 INFO L158 Benchmark]: Witness Printer took 5.15ms. Allocated memory is still 169.9MB. Free memory was 137.4MB in the beginning and 137.1MB in the end (delta: 315.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 19:57:25,989 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, 138 locations, 62 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 70 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 230 IncrementalHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 34 mSDtfsCounter, 230 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 290 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 92 SizeOfPredicates, 0 NumberOfNonLiveVariables, 40 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of to_int at line 34. Possible FailurePath: [L24] int counter = 0; [L26] int r; [L27] double a, x, s; [L28] a = __VERIFIER_nondet_double() [L29] x = a [L30] s = 3.25 [L31] r = 1 VAL [a=2, counter=0, r=1, s=13/4, x=2] [L33] EXPR counter++ VAL [a=2, counter=1, r=1, s=13/4, x=2] [L33] COND TRUE counter++<20 [L34] EXPR 12*r VAL [a=2, counter=1, r=1, s=13/4, x=2] [L34] EXPR 12*r*r VAL [a=2, counter=1, r=1, s=13/4, x=2] [L34] (int)(4*s) - 12*r*r VAL [a=2, counter=1, r=1, s=13/4, x=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory is still 95.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.45ms. Allocated memory is still 169.9MB. Free memory was 139.5MB in the beginning and 138.1MB in the end (delta: 1.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.23ms. Allocated memory is still 169.9MB. Free memory was 138.1MB in the beginning and 136.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.24ms. Allocated memory is still 169.9MB. Free memory was 136.2MB in the beginning and 134.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 876.87ms. Allocated memory is still 169.9MB. Free memory was 134.1MB in the beginning and 112.3MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * CodeCheck took 941.05ms. Allocated memory is still 169.9MB. Free memory was 112.3MB in the beginning and 137.4MB in the end (delta: -25.2MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. * Witness Printer took 5.15ms. Allocated memory is still 169.9MB. Free memory was 137.4MB in the beginning and 137.1MB in the end (delta: 315.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post5 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 19:57:26,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC --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 32bit --witnessprinter.graph.data.programhash c8425a5d05ac446a6871721d80167c62d0d4f36c759d59becfd4b9bf0feba487 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 19:57:28,765 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 19:57:28,916 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf [2023-11-23 19:57:28,977 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 19:57:28,978 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 19:57:28,979 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 19:57:28,980 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 19:57:28,981 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 19:57:28,982 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 19:57:28,990 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 19:57:28,990 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 19:57:28,991 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 19:57:28,991 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 19:57:28,993 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 19:57:28,993 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 19:57:28,994 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 19:57:28,994 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 19:57:28,995 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 19:57:28,995 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 19:57:28,996 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 19:57:28,997 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 19:57:28,997 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 19:57:28,998 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 19:57:28,998 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 19:57:28,999 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 19:57:28,999 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 19:57:28,999 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 19:57:29,000 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 19:57:29,000 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-23 19:57:29,001 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 19:57:29,002 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 19:57:29,003 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 19:57:29,004 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 19:57:29,004 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 19:57:29,004 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 19:57:29,005 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 19:57:29,005 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 19:57:29,005 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-23 19:57:29,005 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 19:57:29,006 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8425a5d05ac446a6871721d80167c62d0d4f36c759d59becfd4b9bf0feba487 [2023-11-23 19:57:29,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 19:57:29,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 19:57:29,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 19:57:29,433 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 19:57:29,434 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 19:57:29,436 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound20.c [2023-11-23 19:57:32,667 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 19:57:32,905 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 19:57:32,906 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound20.c [2023-11-23 19:57:32,922 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/data/bbe5afd4b/8d53c8d818f4429f8d64faaccbb4004a/FLAGc25d31c31 [2023-11-23 19:57:32,946 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/data/bbe5afd4b/8d53c8d818f4429f8d64faaccbb4004a [2023-11-23 19:57:32,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 19:57:32,957 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 19:57:32,958 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 19:57:32,958 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 19:57:32,964 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 19:57:32,965 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:57:32" (1/1) ... [2023-11-23 19:57:32,966 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7985c7cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:32, skipping insertion in model container [2023-11-23 19:57:32,966 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:57:32" (1/1) ... [2023-11-23 19:57:32,999 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 19:57:33,206 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 19:57:33,219 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 19:57:33,247 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 19:57:33,285 INFO L206 MainTranslator]: Completed translation [2023-11-23 19:57:33,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:33 WrapperNode [2023-11-23 19:57:33,286 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 19:57:33,287 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 19:57:33,287 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 19:57:33,287 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 19:57:33,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:33" (1/1) ... [2023-11-23 19:57:33,306 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:33" (1/1) ... [2023-11-23 19:57:33,351 INFO L138 Inliner]: procedures = 15, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 110 [2023-11-23 19:57:33,352 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 19:57:33,353 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 19:57:33,353 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 19:57:33,353 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 19:57:33,373 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:33" (1/1) ... [2023-11-23 19:57:33,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:33" (1/1) ... [2023-11-23 19:57:33,386 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:33" (1/1) ... [2023-11-23 19:57:33,386 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:33" (1/1) ... [2023-11-23 19:57:33,406 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:33" (1/1) ... [2023-11-23 19:57:33,409 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:33" (1/1) ... [2023-11-23 19:57:33,437 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:33" (1/1) ... [2023-11-23 19:57:33,439 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:33" (1/1) ... [2023-11-23 19:57:33,443 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 19:57:33,444 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 19:57:33,444 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 19:57:33,444 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 19:57:33,445 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:57:33" (1/1) ... [2023-11-23 19:57:33,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 19:57:33,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 19:57:33,490 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 19:57:33,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 19:57:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 19:57:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 19:57:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 19:57:33,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 19:57:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 19:57:33,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 19:57:33,635 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 19:57:33,637 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 19:58:24,390 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 19:58:24,428 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 19:58:24,428 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 19:58:24,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:58:24 BoogieIcfgContainer [2023-11-23 19:58:24,431 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 19:58:24,432 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 19:58:24,432 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 19:58:24,443 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 19:58:24,443 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:58:24" (1/1) ... [2023-11-23 19:58:24,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 19:58:24,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:58:24,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 138 states and 145 transitions. [2023-11-23 19:58:24,516 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 145 transitions. [2023-11-23 19:58:24,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-23 19:58:24,518 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:58:24,518 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 19:58:24,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 19:58:24,524 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 19:58:24,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-23 19:58:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:58:24,625 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-23 19:58:24,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:58:24,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 19:58:24,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 19:58:24,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 19:58:24,661 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-23 19:58:24,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-23 19:58:24,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:58:24,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 137 states and 143 transitions. [2023-11-23 19:58:24,706 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 143 transitions. [2023-11-23 19:58:24,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 19:58:24,706 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:58:24,707 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 19:58:24,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 19:58:24,709 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 19:58:24,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-23 19:58:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:58:24,815 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-23 19:58:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:58:24,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 19:58:24,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 19:58:24,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 19:58:24,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-11-23 19:58:25,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:58:25,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 140 states and 147 transitions. [2023-11-23 19:58:25,123 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 147 transitions. [2023-11-23 19:58:25,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 19:58:25,124 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:58:25,124 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 19:58:25,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 19:58:25,126 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 19:58:25,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-23 19:58:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:58:25,273 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-23 19:58:25,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:58:25,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 19:58:25,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 19:58:25,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 19:58:25,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-23 19:58:26,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:58:26,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 145 states and 155 transitions. [2023-11-23 19:58:26,106 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 155 transitions. [2023-11-23 19:58:26,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 19:58:26,106 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:58:26,107 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 19:58:26,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 19:58:26,109 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 19:58:26,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-23 19:58:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:58:26,240 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-23 19:58:26,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:58:26,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 19:58:26,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 19:58:26,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 19:58:26,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-11-23 19:58:26,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:58:26,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 146 states and 157 transitions. [2023-11-23 19:58:26,342 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 157 transitions. [2023-11-23 19:58:26,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 19:58:26,343 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:58:26,343 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 19:58:26,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 19:58:26,345 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 19:58:26,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-23 19:58:26,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:58:26,494 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-23 19:58:26,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:58:26,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 19:58:26,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 19:58:26,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 19:58:26,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-23 19:58:26,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:58:26,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 147 states and 158 transitions. [2023-11-23 19:58:26,617 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 158 transitions. [2023-11-23 19:58:26,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 19:58:26,617 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:58:26,617 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 19:58:26,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 19:58:26,620 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 19:58:26,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-23 19:58:26,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:58:26,750 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-23 19:58:26,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:58:26,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 19:58:26,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 19:58:26,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 19:58:26,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-23 19:58:26,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:58:26,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 148 states and 159 transitions. [2023-11-23 19:58:26,871 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 159 transitions. [2023-11-23 19:58:26,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 19:58:26,871 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:58:26,872 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 19:58:26,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 19:58:26,874 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 19:58:26,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-23 19:58:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:58:27,082 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-23 19:58:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:58:27,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 19:58:27,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 19:58:27,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 19:58:27,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-11-23 19:58:27,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:58:27,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 149 states and 160 transitions. [2023-11-23 19:58:27,303 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 160 transitions. [2023-11-23 19:58:27,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 19:58:27,303 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:58:27,304 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 19:58:27,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 19:58:27,305 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 19:58:27,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-23 19:58:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:58:27,449 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-23 19:58:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:58:27,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 19:58:27,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 19:58:27,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 19:58:27,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-11-23 19:58:27,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:58:27,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 150 states and 161 transitions. [2023-11-23 19:58:27,721 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 161 transitions. [2023-11-23 19:58:27,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 19:58:27,721 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:58:27,722 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 19:58:27,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 19:58:27,725 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 19:58:27,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-11-23 19:58:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:58:27,881 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-23 19:58:27,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:58:27,921 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 19:58:27,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 19:58:27,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 19:58:27,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-11-23 19:58:28,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:58:28,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 151 states and 162 transitions. [2023-11-23 19:58:28,249 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 162 transitions. [2023-11-23 19:58:28,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 19:58:28,249 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:58:28,250 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 19:58:28,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 19:58:28,257 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 19:58:28,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a006ee65-b17a-426c-a968-e8cab03e454f/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-23 19:58:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:58:28,488 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported