./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2 --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 4b82e8c1bcf5c03e334b6553e221218e68863b0793b3c79a9b1ece221f87e858 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:42:03,727 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:42:03,844 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-21 18:42:03,852 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:42:03,853 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:42:03,890 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:42:03,892 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:42:03,892 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:42:03,893 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:42:03,898 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:42:03,899 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:42:03,900 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:42:03,900 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:42:03,902 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:42:03,903 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:42:03,903 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:42:03,903 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:42:03,904 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:42:03,904 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:42:03,905 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:42:03,905 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:42:03,906 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:42:03,906 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:42:03,906 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:42:03,907 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:42:03,908 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:42:03,908 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:42:03,909 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:42:03,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:42:03,910 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:42:03,911 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:42:03,911 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:42:03,911 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:42:03,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:42:03,912 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:42:03,912 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_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b82e8c1bcf5c03e334b6553e221218e68863b0793b3c79a9b1ece221f87e858 [2023-11-21 18:42:04,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:42:04,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:42:04,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:42:04,274 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:42:04,274 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:42:04,276 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c [2023-11-21 18:42:07,303 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:42:07,631 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:42:07,631 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c [2023-11-21 18:42:07,642 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/data/0520cc97c/eb37921a7b5a46ceb387fe0da9f1d91f/FLAG25b64f15e [2023-11-21 18:42:07,660 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/data/0520cc97c/eb37921a7b5a46ceb387fe0da9f1d91f [2023-11-21 18:42:07,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:42:07,671 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:42:07,672 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:42:07,673 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:42:07,678 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:42:07,679 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:42:07" (1/1) ... [2023-11-21 18:42:07,682 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@624e4b0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:07, skipping insertion in model container [2023-11-21 18:42:07,683 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:42:07" (1/1) ... [2023-11-21 18:42:07,703 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:42:07,937 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:42:07,954 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:42:07,981 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:42:07,996 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:42:07,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:07 WrapperNode [2023-11-21 18:42:07,997 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:42:07,998 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:42:07,998 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:42:07,998 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:42:08,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:07" (1/1) ... [2023-11-21 18:42:08,031 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:07" (1/1) ... [2023-11-21 18:42:08,059 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 106 [2023-11-21 18:42:08,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:42:08,060 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:42:08,060 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:42:08,061 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:42:08,070 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:07" (1/1) ... [2023-11-21 18:42:08,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:07" (1/1) ... [2023-11-21 18:42:08,072 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:07" (1/1) ... [2023-11-21 18:42:08,073 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:07" (1/1) ... [2023-11-21 18:42:08,080 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:07" (1/1) ... [2023-11-21 18:42:08,084 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:07" (1/1) ... [2023-11-21 18:42:08,086 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:07" (1/1) ... [2023-11-21 18:42:08,087 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:07" (1/1) ... [2023-11-21 18:42:08,090 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:42:08,091 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:42:08,091 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:42:08,091 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:42:08,092 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:07" (1/1) ... [2023-11-21 18:42:08,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:42:08,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:42:08,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:42:08,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:42:08,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:42:08,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:42:08,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:42:08,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:42:08,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 18:42:08,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 18:42:08,232 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:42:08,234 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:42:08,753 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:42:08,852 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:42:08,852 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:42:08,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:42:08 BoogieIcfgContainer [2023-11-21 18:42:08,854 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:42:08,855 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:42:08,855 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:42:08,882 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:42:08,882 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:42:08" (1/1) ... [2023-11-21 18:42:08,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:42:08,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:08,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 133 states and 139 transitions. [2023-11-21 18:42:08,946 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 139 transitions. [2023-11-21 18:42:08,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 18:42:08,947 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:08,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:42:09,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:09,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:42:09,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:09,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 135 states and 141 transitions. [2023-11-21 18:42:09,148 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 141 transitions. [2023-11-21 18:42:09,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 18:42:09,148 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:09,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:42:09,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:09,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:42:09,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:09,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 136 states and 142 transitions. [2023-11-21 18:42:09,217 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 142 transitions. [2023-11-21 18:42:09,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 18:42:09,217 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:09,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:42:09,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:09,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:42:09,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:09,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 135 states and 141 transitions. [2023-11-21 18:42:09,243 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 141 transitions. [2023-11-21 18:42:09,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:42:09,243 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:09,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:42:09,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:09,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:42:09,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:42:09,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:42:09,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:09,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 137 states and 143 transitions. [2023-11-21 18:42:09,310 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 143 transitions. [2023-11-21 18:42:09,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:42:09,310 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:09,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:42:09,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:42:09,331 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:42:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:42:09,346 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2023-11-21 18:42:09,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:42:09 ImpRootNode [2023-11-21 18:42:09,371 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:42:09,372 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:42:09,372 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:42:09,372 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:42:09,373 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:42:08" (3/4) ... [2023-11-21 18:42:09,375 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:42:09,376 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:42:09,377 INFO L158 Benchmark]: Toolchain (without parser) took 1706.22ms. Allocated memory is still 138.4MB. Free memory was 108.4MB in the beginning and 85.3MB in the end (delta: 23.2MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2023-11-21 18:42:09,378 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 100.7MB. Free memory is still 48.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:42:09,379 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.92ms. Allocated memory is still 138.4MB. Free memory was 108.4MB in the beginning and 97.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 18:42:09,379 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.47ms. Allocated memory is still 138.4MB. Free memory was 97.2MB in the beginning and 95.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:42:09,380 INFO L158 Benchmark]: Boogie Preprocessor took 29.93ms. Allocated memory is still 138.4MB. Free memory was 95.2MB in the beginning and 93.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:42:09,381 INFO L158 Benchmark]: RCFGBuilder took 763.67ms. Allocated memory is still 138.4MB. Free memory was 93.8MB in the beginning and 110.3MB in the end (delta: -16.5MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2023-11-21 18:42:09,381 INFO L158 Benchmark]: CodeCheck took 516.28ms. Allocated memory is still 138.4MB. Free memory was 110.3MB in the beginning and 86.0MB in the end (delta: 24.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 18:42:09,382 INFO L158 Benchmark]: Witness Printer took 4.23ms. Allocated memory is still 138.4MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:42:09,385 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, 133 locations, 60 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 10 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 33 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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, overapproximation of someBinaryDOUBLEComparisonOperation at line 28. Possible FailurePath: [L25] int r; [L26] double a, x, s; [L27] a = __VERIFIER_nondet_double() [L28] CALL assume_abort_if_not(a>=0 && a<=10) [L14] COND FALSE !(!cond) [L28] RET assume_abort_if_not(a>=0 && a<=10) [L29] x = a [L30] s = 3.25 [L31] r = 1 VAL [a=2, r=1, s=13/4, x=2] [L33] COND TRUE 1 VAL [a=2, r=1, s=13/4, x=2] [L34] EXPR 12*r VAL [a=2, r=1, s=13/4, x=2] [L34] EXPR 12*r*r VAL [a=2, r=1, s=13/4, x=2] [L34] (int)(4*s) - 12*r*r VAL [a=2, r=1, s=13/4, x=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 100.7MB. Free memory is still 48.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.92ms. Allocated memory is still 138.4MB. Free memory was 108.4MB in the beginning and 97.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.47ms. Allocated memory is still 138.4MB. Free memory was 97.2MB in the beginning and 95.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.93ms. Allocated memory is still 138.4MB. Free memory was 95.2MB in the beginning and 93.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 763.67ms. Allocated memory is still 138.4MB. Free memory was 93.8MB in the beginning and 110.3MB in the end (delta: -16.5MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. * CodeCheck took 516.28ms. Allocated memory is still 138.4MB. Free memory was 110.3MB in the beginning and 86.0MB in the end (delta: 24.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 4.23ms. Allocated memory is still 138.4MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 18:42:09,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2 --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 4b82e8c1bcf5c03e334b6553e221218e68863b0793b3c79a9b1ece221f87e858 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:42:12,087 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:42:12,218 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf [2023-11-21 18:42:12,275 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:42:12,276 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:42:12,278 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:42:12,279 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:42:12,279 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:42:12,280 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:42:12,280 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:42:12,281 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:42:12,282 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:42:12,282 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:42:12,287 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:42:12,287 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:42:12,288 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:42:12,289 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:42:12,290 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:42:12,290 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:42:12,291 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:42:12,291 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:42:12,292 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:42:12,292 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:42:12,293 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:42:12,293 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:42:12,294 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:42:12,294 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:42:12,295 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:42:12,295 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:42:12,295 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:42:12,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:42:12,297 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:42:12,297 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:42:12,298 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:42:12,298 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:42:12,298 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:42:12,299 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:42:12,299 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:42:12,299 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:42:12,300 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_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b82e8c1bcf5c03e334b6553e221218e68863b0793b3c79a9b1ece221f87e858 [2023-11-21 18:42:12,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:42:12,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:42:12,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:42:12,727 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:42:12,728 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:42:12,729 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c [2023-11-21 18:42:15,965 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:42:16,254 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:42:16,254 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c [2023-11-21 18:42:16,263 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/data/65a964502/7ee88701a34e4595ad28d208e29003d9/FLAGbfe4df015 [2023-11-21 18:42:16,284 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/data/65a964502/7ee88701a34e4595ad28d208e29003d9 [2023-11-21 18:42:16,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:42:16,294 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:42:16,298 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:42:16,299 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:42:16,304 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:42:16,305 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:42:16" (1/1) ... [2023-11-21 18:42:16,306 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37d9deef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:16, skipping insertion in model container [2023-11-21 18:42:16,306 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:42:16" (1/1) ... [2023-11-21 18:42:16,336 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:42:16,601 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:42:16,625 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:42:16,673 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:42:16,690 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:42:16,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:16 WrapperNode [2023-11-21 18:42:16,691 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:42:16,693 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:42:16,693 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:42:16,694 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:42:16,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:16" (1/1) ... [2023-11-21 18:42:16,727 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:16" (1/1) ... [2023-11-21 18:42:16,765 INFO L138 Inliner]: procedures = 15, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 107 [2023-11-21 18:42:16,774 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:42:16,775 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:42:16,776 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:42:16,776 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:42:16,785 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:16" (1/1) ... [2023-11-21 18:42:16,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:16" (1/1) ... [2023-11-21 18:42:16,797 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:16" (1/1) ... [2023-11-21 18:42:16,798 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:16" (1/1) ... [2023-11-21 18:42:16,818 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:16" (1/1) ... [2023-11-21 18:42:16,821 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:16" (1/1) ... [2023-11-21 18:42:16,824 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:16" (1/1) ... [2023-11-21 18:42:16,826 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:16" (1/1) ... [2023-11-21 18:42:16,830 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:42:16,831 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:42:16,831 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:42:16,832 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:42:16,833 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:16" (1/1) ... [2023-11-21 18:42:16,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:42:16,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:42:16,866 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:42:16,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:42:16,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:42:16,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:42:16,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:42:16,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:42:16,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 18:42:16,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 18:42:17,013 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:42:17,015 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:42:55,137 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:42:55,199 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:42:55,199 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:42:55,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:42:55 BoogieIcfgContainer [2023-11-21 18:42:55,202 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:42:55,203 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:42:55,203 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:42:55,213 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:42:55,214 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:42:55" (1/1) ... [2023-11-21 18:42:55,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:42:55,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:55,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 133 states and 139 transitions. [2023-11-21 18:42:55,286 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 139 transitions. [2023-11-21 18:42:55,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 18:42:55,288 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:55,289 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:42:55,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:42:55,295 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:42:55,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:42:55,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:55,457 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:42:55,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:55,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:42:55,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:42:55,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:42:55,547 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:42:55,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-21 18:42:55,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:55,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 135 states and 141 transitions. [2023-11-21 18:42:55,654 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 141 transitions. [2023-11-21 18:42:55,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 18:42:55,655 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:55,655 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:42:55,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:42:55,657 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:42:55,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-21 18:42:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:55,789 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:42:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:55,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:42:55,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:42:55,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:42:55,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-21 18:42:55,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:55,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 136 states and 142 transitions. [2023-11-21 18:42:55,896 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 142 transitions. [2023-11-21 18:42:55,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 18:42:55,897 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:55,897 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:42:55,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:42:55,899 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:42:55,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-21 18:42:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:56,075 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:42:56,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:56,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:42:56,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:42:56,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:42:56,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-11-21 18:42:56,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:56,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 137 states and 143 transitions. [2023-11-21 18:42:56,294 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 143 transitions. [2023-11-21 18:42:56,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:42:56,294 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:56,294 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:42:56,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:42:56,299 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:42:56,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-21 18:42:56,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:56,517 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:42:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:56,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:42:56,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:42:56,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:42:56,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-21 18:42:56,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:56,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 138 states and 144 transitions. [2023-11-21 18:42:56,962 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 144 transitions. [2023-11-21 18:42:56,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:42:56,962 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:56,963 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:42:56,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:42:56,964 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:42:56,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-21 18:42:57,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:57,246 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:42:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:57,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:42:57,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:42:57,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:42:57,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-21 18:42:59,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:59,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 144 states and 151 transitions. [2023-11-21 18:42:59,033 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 151 transitions. [2023-11-21 18:42:59,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:42:59,034 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:59,034 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:42:59,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:42:59,036 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:42:59,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-21 18:42:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:59,284 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:42:59,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:59,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:42:59,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:42:59,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:42:59,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-21 18:43:01,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:43:01,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 145 states and 153 transitions. [2023-11-21 18:43:01,009 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 153 transitions. [2023-11-21 18:43:01,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 18:43:01,013 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:43:01,013 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:43:01,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:43:01,015 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:43:01,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-21 18:43:01,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:43:01,358 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:43:01,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:43:01,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:43:01,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:43:01,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:43:01,548 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (8)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:43:01,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-11-21 18:43:03,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-21 18:43:04,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:43:04,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 147 states and 156 transitions. [2023-11-21 18:43:04,023 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 156 transitions. [2023-11-21 18:43:04,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 18:43:04,024 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:43:04,024 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:43:04,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:43:04,025 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:43:04,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-21 18:43:04,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:43:04,299 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:43:04,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:43:04,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:43:04,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:43:04,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:43:04,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-11-21 18:43:04,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:43:04,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 148 states and 157 transitions. [2023-11-21 18:43:04,527 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 157 transitions. [2023-11-21 18:43:04,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 18:43:04,528 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:43:04,528 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:43:04,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:43:04,530 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:43:04,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-11-21 18:43:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:43:04,911 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:43:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:43:05,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:43:05,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:43:05,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:43:05,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-11-21 18:43:05,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:43:05,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 149 states and 158 transitions. [2023-11-21 18:43:05,299 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 158 transitions. [2023-11-21 18:43:05,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 18:43:05,300 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:43:05,300 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:43:05,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:43:05,302 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:43:05,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-21 18:43:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:43:05,612 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:43:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:43:05,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:43:05,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:43:05,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:43:05,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-11-21 18:43:06,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:43:06,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 150 states and 159 transitions. [2023-11-21 18:43:06,213 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 159 transitions. [2023-11-21 18:43:06,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-21 18:43:06,213 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:43:06,214 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:43:06,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:43:06,215 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:43:06,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-11-21 18:43:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:43:06,622 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:43:06,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:43:06,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:43:06,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:43:06,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:43:06,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2023-11-21 18:43:07,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:43:07,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 151 states and 160 transitions. [2023-11-21 18:43:07,319 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 160 transitions. [2023-11-21 18:43:07,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-21 18:43:07,320 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:43:07,320 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:43:07,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:43:07,327 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:43:07,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-11-21 18:43:07,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:43:07,744 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:43:07,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:43:07,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:43:07,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:43:08,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:43:08,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-11-21 18:43:08,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:43:08,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 152 states and 161 transitions. [2023-11-21 18:43:08,578 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 161 transitions. [2023-11-21 18:43:08,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-21 18:43:08,579 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:43:08,579 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:43:08,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:43:08,582 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:43:08,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-11-21 18:43:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:43:09,182 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:43:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:43:09,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:43:09,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:43:09,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:43:09,510 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (14)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:43:09,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2023-11-21 18:43:09,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:43:09,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 153 states and 162 transitions. [2023-11-21 18:43:09,720 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 162 transitions. [2023-11-21 18:43:09,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-21 18:43:09,721 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:43:09,721 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:43:09,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:43:09,722 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:43:09,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-11-21 18:43:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:43:10,298 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:43:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:43:10,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:43:10,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:43:10,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:43:10,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2023-11-21 18:43:10,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:43:10,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 154 states and 163 transitions. [2023-11-21 18:43:10,710 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 163 transitions. [2023-11-21 18:43:10,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-21 18:43:10,711 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:43:10,712 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:43:10,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:43:10,714 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:43:10,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0dabf73-f9ca-43a4-811c-5bda96016559/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-11-21 18:43:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:43:11,345 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:43:11,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:43:11,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:43:11,547 INFO L285 TraceCheckSpWp]: Computing forward predicates...