./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-pthread/cs_dekker.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d201a684-5ad4-4574-b96a-85a5a26681c8/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d201a684-5ad4-4574-b96a-85a5a26681c8/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_d201a684-5ad4-4574-b96a-85a5a26681c8/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d201a684-5ad4-4574-b96a-85a5a26681c8/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_dekker.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d201a684-5ad4-4574-b96a-85a5a26681c8/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_d201a684-5ad4-4574-b96a-85a5a26681c8/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 ee7ff83d9ca4f9baaadd009c98a7dd30697b6140296199117a6b05757b5b9f74 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:39:05,669 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:39:05,790 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d201a684-5ad4-4574-b96a-85a5a26681c8/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-21 18:39:05,795 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:39:05,796 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:39:05,823 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:39:05,825 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:39:05,825 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:39:05,827 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:39:05,827 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:39:05,828 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:39:05,829 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:39:05,830 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:39:05,831 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:39:05,831 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:39:05,832 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:39:05,833 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:39:05,843 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:39:05,844 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:39:05,845 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:39:05,846 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:39:05,847 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:39:05,847 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:39:05,848 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:39:05,849 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:39:05,849 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:39:05,850 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:39:05,850 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:39:05,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:39:05,852 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:39:05,852 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:39:05,853 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:39:05,853 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:39:05,854 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:39:05,854 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:39:05,855 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_d201a684-5ad4-4574-b96a-85a5a26681c8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d201a684-5ad4-4574-b96a-85a5a26681c8/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee7ff83d9ca4f9baaadd009c98a7dd30697b6140296199117a6b05757b5b9f74 [2023-11-21 18:39:06,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:39:06,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:39:06,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:39:06,240 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:39:06,241 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:39:06,243 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d201a684-5ad4-4574-b96a-85a5a26681c8/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/seq-pthread/cs_dekker.i [2023-11-21 18:39:09,492 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:39:09,832 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:39:09,833 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d201a684-5ad4-4574-b96a-85a5a26681c8/sv-benchmarks/c/seq-pthread/cs_dekker.i [2023-11-21 18:39:09,853 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d201a684-5ad4-4574-b96a-85a5a26681c8/bin/ukojak-verify-i0I2FZA1j2/data/b1158acf8/3c41324d99864e57b148065cbbe10217/FLAG8fb972430 [2023-11-21 18:39:09,869 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d201a684-5ad4-4574-b96a-85a5a26681c8/bin/ukojak-verify-i0I2FZA1j2/data/b1158acf8/3c41324d99864e57b148065cbbe10217 [2023-11-21 18:39:09,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:39:09,873 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:39:09,875 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:39:09,875 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:39:09,882 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:39:09,886 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:39:09" (1/1) ... [2023-11-21 18:39:09,887 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@befeb11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:09, skipping insertion in model container [2023-11-21 18:39:09,887 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:39:09" (1/1) ... [2023-11-21 18:39:09,951 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:39:10,546 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:39:10,572 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:39:10,683 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:39:10,732 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:39:10,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:10 WrapperNode [2023-11-21 18:39:10,732 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:39:10,734 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:39:10,734 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:39:10,734 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:39:10,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:10" (1/1) ... [2023-11-21 18:39:10,777 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:10" (1/1) ... [2023-11-21 18:39:10,839 INFO L138 Inliner]: procedures = 145, calls = 301, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 462 [2023-11-21 18:39:10,851 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:39:10,852 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:39:10,853 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:39:10,853 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:39:10,864 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:10" (1/1) ... [2023-11-21 18:39:10,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:10" (1/1) ... [2023-11-21 18:39:10,883 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:10" (1/1) ... [2023-11-21 18:39:10,883 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:10" (1/1) ... [2023-11-21 18:39:10,934 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:10" (1/1) ... [2023-11-21 18:39:10,939 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:10" (1/1) ... [2023-11-21 18:39:10,943 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:10" (1/1) ... [2023-11-21 18:39:10,956 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:10" (1/1) ... [2023-11-21 18:39:10,963 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:39:10,969 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:39:10,970 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:39:10,970 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:39:10,971 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:10" (1/1) ... [2023-11-21 18:39:10,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:39:10,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d201a684-5ad4-4574-b96a-85a5a26681c8/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:39:11,007 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d201a684-5ad4-4574-b96a-85a5a26681c8/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:39:11,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d201a684-5ad4-4574-b96a-85a5a26681c8/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:39:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 18:39:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 18:39:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 18:39:11,051 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 18:39:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:39:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:39:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 18:39:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-11-21 18:39:11,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-11-21 18:39:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 18:39:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-11-21 18:39:11,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-11-21 18:39:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-21 18:39:11,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-21 18:39:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:39:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 18:39:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-11-21 18:39:11,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-11-21 18:39:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:39:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:39:11,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:39:11,290 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:39:11,293 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:39:22,558 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:39:22,690 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:39:22,690 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 18:39:22,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:39:22 BoogieIcfgContainer [2023-11-21 18:39:22,692 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:39:22,693 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:39:22,693 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:39:22,704 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:39:22,705 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:39:22" (1/1) ... [2023-11-21 18:39:22,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:39:22,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:22,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 110 states and 152 transitions. [2023-11-21 18:39:22,778 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 152 transitions. [2023-11-21 18:39:22,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 18:39:22,780 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:22,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:23,359 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 18:39:33,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 18:39:33,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:33,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 112 states and 155 transitions. [2023-11-21 18:39:33,523 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 155 transitions. [2023-11-21 18:39:33,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 18:39:33,523 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:33,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:33,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:33,681 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 18:39:33,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:33,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 113 states and 156 transitions. [2023-11-21 18:39:33,707 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 156 transitions. [2023-11-21 18:39:33,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:39:33,708 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:33,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:34,073 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 18:39:42,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 18:39:42,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:42,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 113 states and 157 transitions. [2023-11-21 18:39:42,084 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 157 transitions. [2023-11-21 18:39:42,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:39:42,084 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:42,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:42,300 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:39:42,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:42,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 115 states and 160 transitions. [2023-11-21 18:39:42,562 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 160 transitions. [2023-11-21 18:39:42,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:39:42,565 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:42,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:42,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:39:42,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:42,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 116 states and 161 transitions. [2023-11-21 18:39:42,950 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 161 transitions. [2023-11-21 18:39:42,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:39:42,950 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:42,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:43,092 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 18:39:43,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:43,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 115 states and 160 transitions. [2023-11-21 18:39:43,338 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 160 transitions. [2023-11-21 18:39:43,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:39:43,339 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:43,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:43,627 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:39:43,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:43,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 112 states and 155 transitions. [2023-11-21 18:39:43,746 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 155 transitions. [2023-11-21 18:39:43,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:39:43,747 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:43,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:43,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:43,944 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 18:39:45,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:45,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 120 states and 164 transitions. [2023-11-21 18:39:45,285 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 164 transitions. [2023-11-21 18:39:45,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 18:39:45,286 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:45,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:45,459 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 18:39:45,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:45,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 121 states and 165 transitions. [2023-11-21 18:39:45,485 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 165 transitions. [2023-11-21 18:39:45,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-21 18:39:45,487 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:45,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:46,077 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 18:39:56,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 18:39:56,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:56,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 121 states and 166 transitions. [2023-11-21 18:39:56,381 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 166 transitions. [2023-11-21 18:39:56,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-21 18:39:56,382 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:56,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:56,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:56,785 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 18:39:57,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:57,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 124 states and 168 transitions. [2023-11-21 18:39:57,542 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 168 transitions. [2023-11-21 18:39:57,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-21 18:39:57,542 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:57,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:57,899 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 25 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-21 18:39:58,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:58,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 127 states and 170 transitions. [2023-11-21 18:39:58,679 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 170 transitions. [2023-11-21 18:39:58,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-21 18:39:58,680 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:58,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:58,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:59,178 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-21 18:40:02,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:02,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 139 states and 182 transitions. [2023-11-21 18:40:02,679 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 182 transitions. [2023-11-21 18:40:02,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 18:40:02,679 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:02,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:40:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:03,230 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-21 18:40:07,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:07,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 138 states and 181 transitions. [2023-11-21 18:40:07,343 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 181 transitions. [2023-11-21 18:40:07,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-21 18:40:07,347 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:07,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:40:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:07,739 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-21 18:40:07,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:07,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 137 states and 180 transitions. [2023-11-21 18:40:07,757 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 180 transitions. [2023-11-21 18:40:07,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-21 18:40:07,764 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:07,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:40:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:08,090 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-21 18:40:08,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:08,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 136 states and 179 transitions. [2023-11-21 18:40:08,112 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 179 transitions. [2023-11-21 18:40:08,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-21 18:40:08,118 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:08,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:40:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:08,836 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 36 proven. 73 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-21 18:40:09,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:09,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 123 states and 164 transitions. [2023-11-21 18:40:09,254 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 164 transitions. [2023-11-21 18:40:09,256 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 18:40:09,256 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 18 iterations. [2023-11-21 18:40:09,265 INFO L751 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2023-11-21 18:40:09,819 INFO L560 CodeCheckObserver]: Invariant with dag size 15 [2023-11-21 18:40:09,832 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:40:09,833 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2023-11-21 18:40:09,834 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:40:09,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:40:09 ImpRootNode [2023-11-21 18:40:09,835 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:40:09,836 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:40:09,837 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:40:09,837 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:40:09,837 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:39:22" (3/4) ... [2023-11-21 18:40:09,840 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 18:40:09,845 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_pthread_join [2023-11-21 18:40:09,846 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-21 18:40:09,847 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_pthread_create [2023-11-21 18:40:09,847 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-21 18:40:09,847 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_cs [2023-11-21 18:40:09,877 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2023-11-21 18:40:09,879 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-21 18:40:09,881 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-21 18:40:09,883 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-21 18:40:09,885 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges