./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-pthread/cs_peterson.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_peterson.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4a8be7009a37d1df58713fd67cd9771c39e6139a0416009824ceb58da10928b7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:02:32,811 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:02:32,951 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-25 00:02:32,960 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:02:32,961 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:02:33,010 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:02:33,012 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:02:33,013 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:02:33,014 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:02:33,020 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:02:33,021 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:02:33,022 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:02:33,023 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:02:33,025 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:02:33,025 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:02:33,026 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:02:33,026 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:02:33,027 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:02:33,027 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:02:33,028 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:02:33,030 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:02:33,031 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:02:33,032 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:02:33,033 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:02:33,033 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:02:33,034 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:02:33,034 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:02:33,035 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:02:33,035 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:02:33,036 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:02:33,037 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:02:33,038 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-25 00:02:33,038 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-25 00:02:33,038 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:02:33,039 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:02:33,039 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:02:33,039 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:02:33,039 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:02:33,040 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:02:33,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:02:33,040 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:02:33,041 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:02:33,041 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:02:33,041 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:02:33,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:02:33,042 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:02:33,043 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:02:33,043 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:02:33,043 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:02:33,043 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a8be7009a37d1df58713fd67cd9771c39e6139a0416009824ceb58da10928b7 [2023-11-25 00:02:33,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:02:33,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:02:33,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:02:33,387 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:02:33,387 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:02:33,389 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/seq-pthread/cs_peterson.i [2023-11-25 00:02:36,604 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:02:36,973 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:02:36,974 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/sv-benchmarks/c/seq-pthread/cs_peterson.i [2023-11-25 00:02:36,996 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/data/93b9a0b94/cc63199e74e642e98e224eec03616178/FLAGe7a67207a [2023-11-25 00:02:37,015 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/data/93b9a0b94/cc63199e74e642e98e224eec03616178 [2023-11-25 00:02:37,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:02:37,022 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:02:37,027 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:02:37,027 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:02:37,032 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:02:37,033 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:02:37" (1/1) ... [2023-11-25 00:02:37,034 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@117f0b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:37, skipping insertion in model container [2023-11-25 00:02:37,034 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:02:37" (1/1) ... [2023-11-25 00:02:37,111 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:02:37,645 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:02:37,669 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:02:37,747 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:02:37,790 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:02:37,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:37 WrapperNode [2023-11-25 00:02:37,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:02:37,792 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:02:37,792 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:02:37,793 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:02:37,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:37" (1/1) ... [2023-11-25 00:02:37,833 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:37" (1/1) ... [2023-11-25 00:02:37,889 INFO L138 Inliner]: procedures = 145, calls = 277, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 442 [2023-11-25 00:02:37,893 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:02:37,895 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:02:37,895 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:02:37,895 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:02:37,910 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:37" (1/1) ... [2023-11-25 00:02:37,910 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:37" (1/1) ... [2023-11-25 00:02:37,919 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:37" (1/1) ... [2023-11-25 00:02:37,920 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:37" (1/1) ... [2023-11-25 00:02:37,947 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:37" (1/1) ... [2023-11-25 00:02:37,952 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:37" (1/1) ... [2023-11-25 00:02:37,957 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:37" (1/1) ... [2023-11-25 00:02:37,961 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:37" (1/1) ... [2023-11-25 00:02:37,969 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:02:37,970 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:02:37,971 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:02:37,971 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:02:37,972 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:37" (1/1) ... [2023-11-25 00:02:37,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:02:37,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:02:38,007 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:02:38,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:02:38,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:02:38,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:02:38,068 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-25 00:02:38,069 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-25 00:02:38,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:02:38,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:02:38,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-25 00:02:38,069 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-11-25 00:02:38,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-11-25 00:02:38,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-25 00:02:38,070 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-11-25 00:02:38,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-11-25 00:02:38,070 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-25 00:02:38,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-25 00:02:38,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:02:38,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-25 00:02:38,071 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-11-25 00:02:38,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-11-25 00:02:38,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:02:38,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:02:38,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:02:38,250 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:02:38,252 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:02:40,966 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:02:41,124 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:02:41,124 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-25 00:02:41,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:02:41 BoogieIcfgContainer [2023-11-25 00:02:41,127 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:02:41,129 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:02:41,130 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:02:41,133 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:02:41,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:02:37" (1/3) ... [2023-11-25 00:02:41,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158490c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:02:41, skipping insertion in model container [2023-11-25 00:02:41,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:37" (2/3) ... [2023-11-25 00:02:41,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158490c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:02:41, skipping insertion in model container [2023-11-25 00:02:41,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:02:41" (3/3) ... [2023-11-25 00:02:41,140 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_peterson.i [2023-11-25 00:02:41,157 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:02:41,157 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-25 00:02:41,219 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:02:41,226 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6fca8387, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:02:41,226 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-25 00:02:41,233 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 60 states have (on average 1.3333333333333333) internal successors, (80), 68 states have internal predecessors, (80), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-25 00:02:41,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-25 00:02:41,240 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:41,241 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-25 00:02:41,242 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-25 00:02:41,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:41,247 INFO L85 PathProgramCache]: Analyzing trace with hash 10044223, now seen corresponding path program 1 times [2023-11-25 00:02:41,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:41,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209089939] [2023-11-25 00:02:41,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:41,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:41,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:41,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:41,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:41,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209089939] [2023-11-25 00:02:41,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209089939] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:41,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:41,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:02:41,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453669464] [2023-11-25 00:02:41,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:41,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:02:41,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:02:41,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:02:41,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:02:41,986 INFO L87 Difference]: Start difference. First operand has 108 states, 60 states have (on average 1.3333333333333333) internal successors, (80), 68 states have internal predecessors, (80), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:44,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:02:46,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:02:48,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:02:48,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:48,369 INFO L93 Difference]: Finished difference Result 214 states and 301 transitions. [2023-11-25 00:02:48,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:02:48,379 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-25 00:02:48,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:48,385 INFO L225 Difference]: With dead ends: 214 [2023-11-25 00:02:48,385 INFO L226 Difference]: Without dead ends: 14 [2023-11-25 00:02:48,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:02:48,396 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 3 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:48,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 382 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 3 Unknown, 0 Unchecked, 6.3s Time] [2023-11-25 00:02:48,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-25 00:02:48,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-25 00:02:48,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.5) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:48,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2023-11-25 00:02:48,435 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 4 [2023-11-25 00:02:48,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:48,435 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2023-11-25 00:02:48,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:48,436 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-25 00:02:48,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-25 00:02:48,437 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:48,437 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-25 00:02:48,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:02:48,438 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-25 00:02:48,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:48,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1420126053, now seen corresponding path program 1 times [2023-11-25 00:02:48,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:48,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2369718] [2023-11-25 00:02:48,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:48,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:48,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:48,733 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:48,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:48,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2369718] [2023-11-25 00:02:48,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2369718] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-25 00:02:48,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254070212] [2023-11-25 00:02:48,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:48,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:48,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:02:48,741 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:02:48,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-25 00:02:49,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:49,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:02:49,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:49,228 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:49,228 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:49,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254070212] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:49,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-25 00:02:49,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-11-25 00:02:49,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32676750] [2023-11-25 00:02:49,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:49,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:02:49,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:02:49,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:02:49,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-25 00:02:49,237 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:49,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:49,326 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2023-11-25 00:02:49,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:02:49,328 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-25 00:02:49,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:49,329 INFO L225 Difference]: With dead ends: 15 [2023-11-25 00:02:49,329 INFO L226 Difference]: Without dead ends: 14 [2023-11-25 00:02:49,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-25 00:02:49,332 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 11 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:49,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 12 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:02:49,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-25 00:02:49,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2023-11-25 00:02:49,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:49,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2023-11-25 00:02:49,344 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 7 [2023-11-25 00:02:49,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:49,344 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2023-11-25 00:02:49,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:49,345 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2023-11-25 00:02:49,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-25 00:02:49,346 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:49,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:49,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-25 00:02:49,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:49,552 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-25 00:02:49,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:49,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1420125549, now seen corresponding path program 1 times [2023-11-25 00:02:49,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:49,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248866294] [2023-11-25 00:02:49,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:49,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:49,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:49,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:49,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248866294] [2023-11-25 00:02:49,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248866294] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-25 00:02:49,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355789888] [2023-11-25 00:02:49,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:49,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:49,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:02:49,853 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:02:49,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-25 00:02:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:50,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:02:50,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:50,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:50,234 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:02:50,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:50,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355789888] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-25 00:02:50,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [870792673] [2023-11-25 00:02:50,327 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2023-11-25 00:02:50,327 INFO L166 IcfgInterpreter]: Building call graph [2023-11-25 00:02:50,333 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-25 00:02:50,340 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-25 00:02:50,341 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-25 00:03:00,622 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-25 00:03:06,157 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '541#(and (<= (+ 2147483650 |ULTIMATE.start_main_#t~post37#1|) 0) (<= |ULTIMATE.start_main_~j~2#1| 2147483647) (<= 3 |ULTIMATE.start_main_~j~2#1|) (= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_#t~post37#1|))' at error location [2023-11-25 00:03:06,158 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-25 00:03:06,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-25 00:03:06,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-11-25 00:03:06,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747555380] [2023-11-25 00:03:06,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-25 00:03:06,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-25 00:03:06,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:03:06,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-25 00:03:06,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-11-25 00:03:06,160 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:03:06,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:06,332 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2023-11-25 00:03:06,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-25 00:03:06,342 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-25 00:03:06,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:06,343 INFO L225 Difference]: With dead ends: 29 [2023-11-25 00:03:06,343 INFO L226 Difference]: Without dead ends: 17 [2023-11-25 00:03:06,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2023-11-25 00:03:06,345 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 11 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:06,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 26 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:03:06,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-11-25 00:03:06,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-11-25 00:03:06,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:03:06,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2023-11-25 00:03:06,356 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2023-11-25 00:03:06,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:06,357 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2023-11-25 00:03:06,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:03:06,357 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2023-11-25 00:03:06,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-25 00:03:06,358 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:06,358 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1] [2023-11-25 00:03:06,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-25 00:03:06,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:06,565 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-25 00:03:06,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:06,566 INFO L85 PathProgramCache]: Analyzing trace with hash -719863131, now seen corresponding path program 1 times [2023-11-25 00:03:06,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:06,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109116791] [2023-11-25 00:03:06,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:06,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:06,720 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-25 00:03:06,721 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:03:06,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109116791] [2023-11-25 00:03:06,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109116791] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:03:06,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:03:06,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:03:06,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789330151] [2023-11-25 00:03:06,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:03:06,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:03:06,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:03:06,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:03:06,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:03:06,724 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:03:06,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:06,766 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2023-11-25 00:03:06,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:03:06,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-25 00:03:06,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:06,768 INFO L225 Difference]: With dead ends: 17 [2023-11-25 00:03:06,768 INFO L226 Difference]: Without dead ends: 16 [2023-11-25 00:03:06,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:03:06,770 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:06,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:03:06,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-25 00:03:06,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-11-25 00:03:06,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:03:06,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2023-11-25 00:03:06,774 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 11 [2023-11-25 00:03:06,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:06,774 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2023-11-25 00:03:06,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:03:06,775 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2023-11-25 00:03:06,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-25 00:03:06,775 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:06,775 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1] [2023-11-25 00:03:06,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-25 00:03:06,776 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-25 00:03:06,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:06,776 INFO L85 PathProgramCache]: Analyzing trace with hash -298723309, now seen corresponding path program 2 times [2023-11-25 00:03:06,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:06,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436430304] [2023-11-25 00:03:06,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:06,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:06,964 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-25 00:03:06,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:03:06,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436430304] [2023-11-25 00:03:06,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436430304] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:03:06,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:03:06,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:03:06,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398522905] [2023-11-25 00:03:06,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:03:06,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:03:06,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:03:06,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:03:06,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:03:06,972 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:03:07,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:07,107 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2023-11-25 00:03:07,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:03:07,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-25 00:03:07,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:07,108 INFO L225 Difference]: With dead ends: 31 [2023-11-25 00:03:07,108 INFO L226 Difference]: Without dead ends: 29 [2023-11-25 00:03:07,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:03:07,109 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:07,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:03:07,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-25 00:03:07,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-25 00:03:07,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 28 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:03:07,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2023-11-25 00:03:07,115 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 13 [2023-11-25 00:03:07,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:07,116 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2023-11-25 00:03:07,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:03:07,116 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2023-11-25 00:03:07,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-25 00:03:07,117 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:07,117 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1] [2023-11-25 00:03:07,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-25 00:03:07,118 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-25 00:03:07,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:07,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1819086751, now seen corresponding path program 1 times [2023-11-25 00:03:07,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:07,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402518979] [2023-11-25 00:03:07,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:07,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:07,473 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-25 00:03:07,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:03:07,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402518979] [2023-11-25 00:03:07,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402518979] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-25 00:03:07,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065101970] [2023-11-25 00:03:07,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:07,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:07,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:03:07,476 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:03:07,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-25 00:03:07,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:07,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-25 00:03:07,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:03:07,891 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-25 00:03:07,891 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:03:07,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065101970] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:03:07,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-25 00:03:07,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-25 00:03:07,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694032098] [2023-11-25 00:03:07,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:03:07,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-25 00:03:07,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:03:07,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-25 00:03:07,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-25 00:03:07,893 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:03:08,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:08,105 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2023-11-25 00:03:08,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-25 00:03:08,106 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-11-25 00:03:08,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:08,107 INFO L225 Difference]: With dead ends: 29 [2023-11-25 00:03:08,107 INFO L226 Difference]: Without dead ends: 28 [2023-11-25 00:03:08,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-25 00:03:08,108 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:08,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 10 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-25 00:03:08,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-25 00:03:08,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-25 00:03:08,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:03:08,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2023-11-25 00:03:08,117 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 26 [2023-11-25 00:03:08,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:08,118 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2023-11-25 00:03:08,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:03:08,119 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2023-11-25 00:03:08,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-25 00:03:08,120 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:08,120 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1] [2023-11-25 00:03:08,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-25 00:03:08,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-25 00:03:08,328 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-25 00:03:08,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:08,328 INFO L85 PathProgramCache]: Analyzing trace with hash 557114573, now seen corresponding path program 1 times [2023-11-25 00:03:08,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:08,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735429611] [2023-11-25 00:03:08,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:08,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:08,515 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-25 00:03:08,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:03:08,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735429611] [2023-11-25 00:03:08,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735429611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:03:08,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:03:08,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:03:08,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372971721] [2023-11-25 00:03:08,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:03:08,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:03:08,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:03:08,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:03:08,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:03:08,519 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:03:08,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:08,593 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2023-11-25 00:03:08,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:03:08,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-11-25 00:03:08,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:08,594 INFO L225 Difference]: With dead ends: 28 [2023-11-25 00:03:08,594 INFO L226 Difference]: Without dead ends: 0 [2023-11-25 00:03:08,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:03:08,596 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:08,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:03:08,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-25 00:03:08,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-25 00:03:08,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:03:08,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-25 00:03:08,597 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2023-11-25 00:03:08,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:08,598 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-25 00:03:08,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:03:08,599 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-25 00:03:08,599 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-25 00:03:08,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-11-25 00:03:08,602 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-11-25 00:03:08,603 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-11-25 00:03:08,603 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-11-25 00:03:08,603 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-11-25 00:03:08,603 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-11-25 00:03:08,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-11-25 00:03:08,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __CS_csErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-11-25 00:03:08,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-25 00:03:08,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-25 00:03:08,736 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 5 7) the Hoare annotation is: true [2023-11-25 00:03:08,737 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 5 7) no Hoare annotation was computed. [2023-11-25 00:03:08,738 INFO L899 garLoopResultBuilder]: For program point __CS_pthread_joinEXIT(lines 642 663) no Hoare annotation was computed. [2023-11-25 00:03:08,738 INFO L899 garLoopResultBuilder]: For program point __CS_pthread_joinFINAL(lines 642 663) no Hoare annotation was computed. [2023-11-25 00:03:08,738 INFO L902 garLoopResultBuilder]: At program point L661(line 661) the Hoare annotation is: true [2023-11-25 00:03:08,739 INFO L899 garLoopResultBuilder]: For program point L661-1(line 661) no Hoare annotation was computed. [2023-11-25 00:03:08,740 INFO L899 garLoopResultBuilder]: For program point L655(lines 655 660) no Hoare annotation was computed. [2023-11-25 00:03:08,740 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 642 663) the Hoare annotation is: true [2023-11-25 00:03:08,740 INFO L899 garLoopResultBuilder]: For program point L650-2(lines 650 654) no Hoare annotation was computed. [2023-11-25 00:03:08,740 INFO L899 garLoopResultBuilder]: For program point L644(lines 644 649) no Hoare annotation was computed. [2023-11-25 00:03:08,740 INFO L902 garLoopResultBuilder]: At program point L758(line 758) the Hoare annotation is: true [2023-11-25 00:03:08,741 INFO L899 garLoopResultBuilder]: For program point L758-1(line 758) no Hoare annotation was computed. [2023-11-25 00:03:08,741 INFO L902 garLoopResultBuilder]: At program point L756(line 756) the Hoare annotation is: true [2023-11-25 00:03:08,741 INFO L899 garLoopResultBuilder]: For program point L756-1(line 756) no Hoare annotation was computed. [2023-11-25 00:03:08,741 INFO L902 garLoopResultBuilder]: At program point L754(line 754) the Hoare annotation is: true [2023-11-25 00:03:08,741 INFO L899 garLoopResultBuilder]: For program point L754-1(line 754) no Hoare annotation was computed. [2023-11-25 00:03:08,741 INFO L902 garLoopResultBuilder]: At program point L752(line 752) the Hoare annotation is: true [2023-11-25 00:03:08,742 INFO L899 garLoopResultBuilder]: For program point L752-1(line 752) no Hoare annotation was computed. [2023-11-25 00:03:08,742 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-11-25 00:03:08,742 INFO L902 garLoopResultBuilder]: At program point L759(line 759) the Hoare annotation is: true [2023-11-25 00:03:08,742 INFO L899 garLoopResultBuilder]: For program point L759-1(lines 748 760) no Hoare annotation was computed. [2023-11-25 00:03:08,742 INFO L902 garLoopResultBuilder]: At program point L757(line 757) the Hoare annotation is: true [2023-11-25 00:03:08,742 INFO L899 garLoopResultBuilder]: For program point L757-1(lines 748 760) no Hoare annotation was computed. [2023-11-25 00:03:08,743 INFO L902 garLoopResultBuilder]: At program point L755(line 755) the Hoare annotation is: true [2023-11-25 00:03:08,743 INFO L899 garLoopResultBuilder]: For program point L755-1(lines 748 760) no Hoare annotation was computed. [2023-11-25 00:03:08,744 INFO L902 garLoopResultBuilder]: At program point L753(line 753) the Hoare annotation is: true [2023-11-25 00:03:08,744 INFO L899 garLoopResultBuilder]: For program point L753-1(lines 748 760) no Hoare annotation was computed. [2023-11-25 00:03:08,744 INFO L902 garLoopResultBuilder]: At program point L751(line 751) the Hoare annotation is: true [2023-11-25 00:03:08,745 INFO L899 garLoopResultBuilder]: For program point L751-1(lines 748 760) no Hoare annotation was computed. [2023-11-25 00:03:08,745 INFO L899 garLoopResultBuilder]: For program point L747(lines 747 760) no Hoare annotation was computed. [2023-11-25 00:03:08,745 INFO L899 garLoopResultBuilder]: For program point ##fun~$Pointer$~TO~$Pointer$EXIT(line -1) no Hoare annotation was computed. [2023-11-25 00:03:08,745 INFO L899 garLoopResultBuilder]: For program point __CS_pthread_createEXIT(lines 664 677) no Hoare annotation was computed. [2023-11-25 00:03:08,746 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 664 677) the Hoare annotation is: true [2023-11-25 00:03:08,746 INFO L899 garLoopResultBuilder]: For program point L770-3(line 770) no Hoare annotation was computed. [2023-11-25 00:03:08,747 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 770) no Hoare annotation was computed. [2023-11-25 00:03:08,747 INFO L899 garLoopResultBuilder]: For program point L770-4(line 770) no Hoare annotation was computed. [2023-11-25 00:03:08,747 INFO L895 garLoopResultBuilder]: At program point L770-5(lines 770 779) the Hoare annotation is: (or (< 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~i~0#1| 0)) [2023-11-25 00:03:08,747 INFO L902 garLoopResultBuilder]: At program point L828(line 828) the Hoare annotation is: true [2023-11-25 00:03:08,748 INFO L899 garLoopResultBuilder]: For program point L828-1(line 828) no Hoare annotation was computed. [2023-11-25 00:03:08,748 INFO L899 garLoopResultBuilder]: For program point L812(lines 812 817) no Hoare annotation was computed. [2023-11-25 00:03:08,748 INFO L899 garLoopResultBuilder]: For program point L812-1(lines 812 817) no Hoare annotation was computed. [2023-11-25 00:03:08,748 INFO L902 garLoopResultBuilder]: At program point L837(line 837) the Hoare annotation is: true [2023-11-25 00:03:08,748 INFO L899 garLoopResultBuilder]: For program point L837-1(line 837) no Hoare annotation was computed. [2023-11-25 00:03:08,748 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 775) no Hoare annotation was computed. [2023-11-25 00:03:08,749 INFO L902 garLoopResultBuilder]: At program point L829(line 829) the Hoare annotation is: true [2023-11-25 00:03:08,749 INFO L899 garLoopResultBuilder]: For program point L829-1(line 829) no Hoare annotation was computed. [2023-11-25 00:03:08,749 INFO L902 garLoopResultBuilder]: At program point L821(line 821) the Hoare annotation is: true [2023-11-25 00:03:08,749 INFO L899 garLoopResultBuilder]: For program point L821-1(line 821) no Hoare annotation was computed. [2023-11-25 00:03:08,749 INFO L902 garLoopResultBuilder]: At program point L838(line 838) the Hoare annotation is: true [2023-11-25 00:03:08,750 INFO L899 garLoopResultBuilder]: For program point L838-1(line 838) no Hoare annotation was computed. [2023-11-25 00:03:08,750 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 775) no Hoare annotation was computed. [2023-11-25 00:03:08,750 INFO L902 garLoopResultBuilder]: At program point L830(line 830) the Hoare annotation is: true [2023-11-25 00:03:08,750 INFO L899 garLoopResultBuilder]: For program point L830-1(line 830) no Hoare annotation was computed. [2023-11-25 00:03:08,751 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-25 00:03:08,751 INFO L902 garLoopResultBuilder]: At program point L839(line 839) the Hoare annotation is: true [2023-11-25 00:03:08,751 INFO L899 garLoopResultBuilder]: For program point L806(lines 806 811) no Hoare annotation was computed. [2023-11-25 00:03:08,753 INFO L899 garLoopResultBuilder]: For program point L839-1(line 839) no Hoare annotation was computed. [2023-11-25 00:03:08,753 INFO L899 garLoopResultBuilder]: For program point L806-1(lines 806 811) no Hoare annotation was computed. [2023-11-25 00:03:08,753 INFO L902 garLoopResultBuilder]: At program point L831(line 831) the Hoare annotation is: true [2023-11-25 00:03:08,753 INFO L899 garLoopResultBuilder]: For program point L831-1(line 831) no Hoare annotation was computed. [2023-11-25 00:03:08,754 INFO L902 garLoopResultBuilder]: At program point L815(line 815) the Hoare annotation is: true [2023-11-25 00:03:08,754 INFO L899 garLoopResultBuilder]: For program point L815-1(line 815) no Hoare annotation was computed. [2023-11-25 00:03:08,754 INFO L902 garLoopResultBuilder]: At program point L840(line 840) the Hoare annotation is: true [2023-11-25 00:03:08,754 INFO L899 garLoopResultBuilder]: For program point L840-1(line 840) no Hoare annotation was computed. [2023-11-25 00:03:08,754 INFO L902 garLoopResultBuilder]: At program point L832(line 832) the Hoare annotation is: true [2023-11-25 00:03:08,754 INFO L899 garLoopResultBuilder]: For program point L832-1(line 832) no Hoare annotation was computed. [2023-11-25 00:03:08,755 INFO L902 garLoopResultBuilder]: At program point L824(line 824) the Hoare annotation is: true [2023-11-25 00:03:08,755 INFO L899 garLoopResultBuilder]: For program point L824-1(line 824) no Hoare annotation was computed. [2023-11-25 00:03:08,755 INFO L902 garLoopResultBuilder]: At program point L841(line 841) the Hoare annotation is: true [2023-11-25 00:03:08,755 INFO L899 garLoopResultBuilder]: For program point L841-1(line 841) no Hoare annotation was computed. [2023-11-25 00:03:08,755 INFO L899 garLoopResultBuilder]: For program point L775-3(line 775) no Hoare annotation was computed. [2023-11-25 00:03:08,755 INFO L899 garLoopResultBuilder]: For program point L775-4(line 775) no Hoare annotation was computed. [2023-11-25 00:03:08,756 INFO L895 garLoopResultBuilder]: At program point L775-5(lines 775 778) the Hoare annotation is: (let ((.cse0 (<= 0 (+ |ULTIMATE.start_main_~j~2#1| 2147483648)))) (or (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2) .cse0) (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0))) [2023-11-25 00:03:08,756 INFO L902 garLoopResultBuilder]: At program point L833(line 833) the Hoare annotation is: true [2023-11-25 00:03:08,756 INFO L899 garLoopResultBuilder]: For program point L833-1(line 833) no Hoare annotation was computed. [2023-11-25 00:03:08,756 INFO L902 garLoopResultBuilder]: At program point L825(line 825) the Hoare annotation is: true [2023-11-25 00:03:08,756 INFO L899 garLoopResultBuilder]: For program point L825-1(line 825) no Hoare annotation was computed. [2023-11-25 00:03:08,756 INFO L902 garLoopResultBuilder]: At program point L842(line 842) the Hoare annotation is: true [2023-11-25 00:03:08,757 INFO L902 garLoopResultBuilder]: At program point L809(line 809) the Hoare annotation is: true [2023-11-25 00:03:08,757 INFO L899 garLoopResultBuilder]: For program point L842-1(line 842) no Hoare annotation was computed. [2023-11-25 00:03:08,757 INFO L899 garLoopResultBuilder]: For program point L809-1(line 809) no Hoare annotation was computed. [2023-11-25 00:03:08,758 INFO L902 garLoopResultBuilder]: At program point L834(line 834) the Hoare annotation is: true [2023-11-25 00:03:08,758 INFO L899 garLoopResultBuilder]: For program point L834-1(line 834) no Hoare annotation was computed. [2023-11-25 00:03:08,758 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-25 00:03:08,758 INFO L902 garLoopResultBuilder]: At program point L826(line 826) the Hoare annotation is: true [2023-11-25 00:03:08,758 INFO L899 garLoopResultBuilder]: For program point L826-1(line 826) no Hoare annotation was computed. [2023-11-25 00:03:08,758 INFO L899 garLoopResultBuilder]: For program point L818(lines 818 823) no Hoare annotation was computed. [2023-11-25 00:03:08,759 INFO L899 garLoopResultBuilder]: For program point L818-1(lines 818 823) no Hoare annotation was computed. [2023-11-25 00:03:08,759 INFO L902 garLoopResultBuilder]: At program point L843(line 843) the Hoare annotation is: true [2023-11-25 00:03:08,759 INFO L899 garLoopResultBuilder]: For program point L843-1(line 843) no Hoare annotation was computed. [2023-11-25 00:03:08,759 INFO L902 garLoopResultBuilder]: At program point L835(line 835) the Hoare annotation is: true [2023-11-25 00:03:08,760 INFO L899 garLoopResultBuilder]: For program point L835-1(line 835) no Hoare annotation was computed. [2023-11-25 00:03:08,760 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 770) no Hoare annotation was computed. [2023-11-25 00:03:08,761 INFO L902 garLoopResultBuilder]: At program point L827(line 827) the Hoare annotation is: true [2023-11-25 00:03:08,761 INFO L899 garLoopResultBuilder]: For program point L827-1(line 827) no Hoare annotation was computed. [2023-11-25 00:03:08,761 INFO L902 garLoopResultBuilder]: At program point L836(line 836) the Hoare annotation is: true [2023-11-25 00:03:08,762 INFO L899 garLoopResultBuilder]: For program point L836-1(line 836) no Hoare annotation was computed. [2023-11-25 00:03:08,762 INFO L899 garLoopResultBuilder]: For program point __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 565) no Hoare annotation was computed. [2023-11-25 00:03:08,762 INFO L899 garLoopResultBuilder]: For program point __CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 565) no Hoare annotation was computed. [2023-11-25 00:03:08,762 INFO L899 garLoopResultBuilder]: For program point __CS_csEXIT(lines 562 568) no Hoare annotation was computed. [2023-11-25 00:03:08,763 INFO L899 garLoopResultBuilder]: For program point __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 566) no Hoare annotation was computed. [2023-11-25 00:03:08,763 INFO L899 garLoopResultBuilder]: For program point __CS_csErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 566) no Hoare annotation was computed. [2023-11-25 00:03:08,763 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 562 568) the Hoare annotation is: true [2023-11-25 00:03:08,763 INFO L899 garLoopResultBuilder]: For program point L566(line 566) no Hoare annotation was computed. [2023-11-25 00:03:08,763 INFO L899 garLoopResultBuilder]: For program point L565(line 565) no Hoare annotation was computed. [2023-11-25 00:03:08,763 INFO L899 garLoopResultBuilder]: For program point L565-1(line 565) no Hoare annotation was computed. [2023-11-25 00:03:08,764 INFO L902 garLoopResultBuilder]: At program point L565-2(line 565) the Hoare annotation is: true [2023-11-25 00:03:08,764 INFO L899 garLoopResultBuilder]: For program point L565-3(line 565) no Hoare annotation was computed. [2023-11-25 00:03:08,767 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2023-11-25 00:03:08,770 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-25 00:03:08,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 12:03:08 BoogieIcfgContainer [2023-11-25 00:03:08,786 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-25 00:03:08,787 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-25 00:03:08,787 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-25 00:03:08,787 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-25 00:03:08,788 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:02:41" (3/4) ... [2023-11-25 00:03:08,790 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-25 00:03:08,794 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_pthread_join [2023-11-25 00:03:08,794 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-25 00:03:08,794 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_pthread_create [2023-11-25 00:03:08,795 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-25 00:03:08,795 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_cs [2023-11-25 00:03:08,819 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2023-11-25 00:03:08,821 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-11-25 00:03:08,822 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-25 00:03:08,823 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-25 00:03:08,824 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-25 00:03:09,020 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/witness.graphml [2023-11-25 00:03:09,021 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/witness.yml [2023-11-25 00:03:09,021 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-25 00:03:09,022 INFO L158 Benchmark]: Toolchain (without parser) took 31999.92ms. Allocated memory was 165.7MB in the beginning and 415.2MB in the end (delta: 249.6MB). Free memory was 122.9MB in the beginning and 237.1MB in the end (delta: -114.1MB). Peak memory consumption was 137.9MB. Max. memory is 16.1GB. [2023-11-25 00:03:09,022 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:03:09,022 INFO L158 Benchmark]: CACSL2BoogieTranslator took 764.86ms. Allocated memory is still 165.7MB. Free memory was 122.9MB in the beginning and 96.4MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-25 00:03:09,023 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.92ms. Allocated memory is still 165.7MB. Free memory was 96.4MB in the beginning and 91.5MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-25 00:03:09,023 INFO L158 Benchmark]: Boogie Preprocessor took 74.83ms. Allocated memory is still 165.7MB. Free memory was 91.5MB in the beginning and 87.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-25 00:03:09,023 INFO L158 Benchmark]: RCFGBuilder took 3156.55ms. Allocated memory is still 165.7MB. Free memory was 87.3MB in the beginning and 109.1MB in the end (delta: -21.8MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB. [2023-11-25 00:03:09,024 INFO L158 Benchmark]: TraceAbstraction took 27657.05ms. Allocated memory was 165.7MB in the beginning and 415.2MB in the end (delta: 249.6MB). Free memory was 108.2MB in the beginning and 247.6MB in the end (delta: -139.3MB). Peak memory consumption was 110.1MB. Max. memory is 16.1GB. [2023-11-25 00:03:09,024 INFO L158 Benchmark]: Witness Printer took 234.13ms. Allocated memory is still 415.2MB. Free memory was 247.6MB in the beginning and 237.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-25 00:03:09,026 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 764.86ms. Allocated memory is still 165.7MB. Free memory was 122.9MB in the beginning and 96.4MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.92ms. Allocated memory is still 165.7MB. Free memory was 96.4MB in the beginning and 91.5MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.83ms. Allocated memory is still 165.7MB. Free memory was 91.5MB in the beginning and 87.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3156.55ms. Allocated memory is still 165.7MB. Free memory was 87.3MB in the beginning and 109.1MB in the end (delta: -21.8MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB. * TraceAbstraction took 27657.05ms. Allocated memory was 165.7MB in the beginning and 415.2MB in the end (delta: 249.6MB). Free memory was 108.2MB in the beginning and 247.6MB in the end (delta: -139.3MB). Peak memory consumption was 110.1MB. Max. memory is 16.1GB. * Witness Printer took 234.13ms. Allocated memory is still 415.2MB. Free memory was 247.6MB in the beginning and 237.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 770]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 770]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 565]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 565]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 566]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 566]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 108 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 27.6s, OverallIterations: 7, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 6.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 455 SdHoareTripleChecker+Invalid, 6.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 300 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 146 IncrementalHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 155 mSDtfsCounter, 146 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=0, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 41 LocationsWithAnnotation, 161 PreInvPairs, 194 NumberOfFragments, 68 HoareAnnotationTreeSize, 161 FomulaSimplifications, 41 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 41 FomulaSimplificationsInter, 71 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 131 ConstructedInterpolants, 0 QuantifiedInterpolants, 333 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1397 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 168/209 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 775]: Loop Invariant Derived loop invariant: ((((1 <= i) && (i <= 2)) && (0 <= (j + 2147483648))) || ((i == 0) && (0 <= (j + 2147483648)))) - InvariantResult [Line: 770]: Loop Invariant Derived loop invariant: ((0 < i) || (i == 0)) RESULT: Ultimate proved your program to be correct! [2023-11-25 00:03:09,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2bd338-f6af-464e-b34a-ef847a0f31b3/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE