./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe027_rmo.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_5333ac7e-7ac0-47c4-892a-d8d440171b67/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5333ac7e-7ac0-47c4-892a-d8d440171b67/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5333ac7e-7ac0-47c4-892a-d8d440171b67/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5333ac7e-7ac0-47c4-892a-d8d440171b67/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe027_rmo.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5333ac7e-7ac0-47c4-892a-d8d440171b67/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5333ac7e-7ac0-47c4-892a-d8d440171b67/bin/utaipan-verify-NcY6lQBIFX --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 85e3ce8f111292d815206f012225ed7eff4e108dc07a389f6fa2d1590522afb0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:57:44,238 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:57:44,357 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5333ac7e-7ac0-47c4-892a-d8d440171b67/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-12 00:57:44,364 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:57:44,365 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:57:44,400 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:57:44,401 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:57:44,402 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:57:44,403 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:57:44,404 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:57:44,404 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:57:44,405 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:57:44,406 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:57:44,407 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:57:44,407 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:57:44,408 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:57:44,409 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:57:44,410 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:57:44,410 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:57:44,411 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:57:44,412 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:57:44,413 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:57:44,414 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:57:44,415 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:57:44,416 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:57:44,416 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:57:44,417 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:57:44,418 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:57:44,418 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:57:44,419 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:57:44,419 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:57:44,420 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:57:44,420 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:57:44,421 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:57:44,421 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:57:44,422 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:57:44,422 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:57:44,422 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:57:44,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:57:44,423 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:57:44,424 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:57:44,424 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:57:44,425 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:57:44,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:57:44,425 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:57:44,426 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:57:44,426 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:57:44,426 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_5333ac7e-7ac0-47c4-892a-d8d440171b67/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5333ac7e-7ac0-47c4-892a-d8d440171b67/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85e3ce8f111292d815206f012225ed7eff4e108dc07a389f6fa2d1590522afb0 [2023-11-12 00:57:44,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:57:44,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:57:44,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:57:44,805 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:57:44,807 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:57:44,809 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5333ac7e-7ac0-47c4-892a-d8d440171b67/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread-wmm/safe027_rmo.i [2023-11-12 00:57:48,331 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:57:48,625 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:57:48,626 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5333ac7e-7ac0-47c4-892a-d8d440171b67/sv-benchmarks/c/pthread-wmm/safe027_rmo.i [2023-11-12 00:57:48,657 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5333ac7e-7ac0-47c4-892a-d8d440171b67/bin/utaipan-verify-NcY6lQBIFX/data/56d9dd0ca/9ee4ed86e20e4d6e9514227cac8fa798/FLAG6e4773d35 [2023-11-12 00:57:48,672 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5333ac7e-7ac0-47c4-892a-d8d440171b67/bin/utaipan-verify-NcY6lQBIFX/data/56d9dd0ca/9ee4ed86e20e4d6e9514227cac8fa798 [2023-11-12 00:57:48,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:57:48,681 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:57:48,683 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:57:48,683 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:57:48,691 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:57:48,693 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:57:48" (1/1) ... [2023-11-12 00:57:48,694 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15fd3f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:48, skipping insertion in model container [2023-11-12 00:57:48,695 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:57:48" (1/1) ... [2023-11-12 00:57:48,774 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:57:49,278 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:57:49,294 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:57:49,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:57:49,458 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:57:49,458 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:57:49,467 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:57:49,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:49 WrapperNode [2023-11-12 00:57:49,468 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:57:49,469 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:57:49,469 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:57:49,470 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:57:49,479 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:49" (1/1) ... [2023-11-12 00:57:49,499 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:49" (1/1) ... [2023-11-12 00:57:49,538 INFO L138 Inliner]: procedures = 177, calls = 83, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 155 [2023-11-12 00:57:49,539 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:57:49,547 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:57:49,547 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:57:49,547 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:57:49,559 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:49" (1/1) ... [2023-11-12 00:57:49,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:49" (1/1) ... [2023-11-12 00:57:49,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:49" (1/1) ... [2023-11-12 00:57:49,567 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:49" (1/1) ... [2023-11-12 00:57:49,584 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:49" (1/1) ... [2023-11-12 00:57:49,588 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:49" (1/1) ... [2023-11-12 00:57:49,592 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:49" (1/1) ... [2023-11-12 00:57:49,595 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:49" (1/1) ... [2023-11-12 00:57:49,611 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:57:49,627 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:57:49,628 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:57:49,628 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:57:49,629 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:49" (1/1) ... [2023-11-12 00:57:49,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:57:49,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5333ac7e-7ac0-47c4-892a-d8d440171b67/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:57:49,674 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5333ac7e-7ac0-47c4-892a-d8d440171b67/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:57:49,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5333ac7e-7ac0-47c4-892a-d8d440171b67/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:57:49,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:57:49,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:57:49,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 00:57:49,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:57:49,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:57:49,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:57:49,730 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 00:57:49,730 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 00:57:49,731 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 00:57:49,731 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 00:57:49,731 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-12 00:57:49,731 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-12 00:57:49,732 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-12 00:57:49,732 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-12 00:57:49,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:57:49,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 00:57:49,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:57:49,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:57:49,737 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 00:57:49,967 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:57:49,971 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:57:50,658 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:57:51,034 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:57:51,035 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:57:51,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:57:51 BoogieIcfgContainer [2023-11-12 00:57:51,039 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:57:51,045 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:57:51,045 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:57:51,049 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:57:51,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:57:48" (1/3) ... [2023-11-12 00:57:51,050 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ac24c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:57:51, skipping insertion in model container [2023-11-12 00:57:51,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:49" (2/3) ... [2023-11-12 00:57:51,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ac24c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:57:51, skipping insertion in model container [2023-11-12 00:57:51,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:57:51" (3/3) ... [2023-11-12 00:57:51,056 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_rmo.i [2023-11-12 00:57:51,068 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 00:57:51,081 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:57:51,082 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-12 00:57:51,082 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:57:51,180 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 00:57:51,223 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:57:51,279 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 168 places, 158 transitions, 332 flow [2023-11-12 00:57:51,285 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 168 places, 158 transitions, 332 flow [2023-11-12 00:57:51,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 168 places, 158 transitions, 332 flow [2023-11-12 00:57:51,471 INFO L124 PetriNetUnfolderBase]: 3/154 cut-off events. [2023-11-12 00:57:51,472 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 00:57:51,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 154 events. 3/154 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2023-11-12 00:57:51,489 INFO L119 LiptonReduction]: Number of co-enabled transitions 3782 [2023-11-12 00:58:04,677 INFO L134 LiptonReduction]: Checked pairs total: 10876 [2023-11-12 00:58:04,678 INFO L136 LiptonReduction]: Total number of compositions: 143 [2023-11-12 00:58:04,690 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 47 places, 35 transitions, 86 flow [2023-11-12 00:58:05,038 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4750 states, 4670 states have (on average 4.2796573875803) internal successors, (19986), 4749 states have internal predecessors, (19986), 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) [2023-11-12 00:58:05,062 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:58:05,070 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;@40d656e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:58:05,071 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-12 00:58:05,093 INFO L276 IsEmpty]: Start isEmpty. Operand has 4750 states, 4670 states have (on average 4.2796573875803) internal successors, (19986), 4749 states have internal predecessors, (19986), 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) [2023-11-12 00:58:05,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:58:05,100 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:58:05,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 00:58:05,101 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 00:58:05,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:58:05,109 INFO L85 PathProgramCache]: Analyzing trace with hash 25500680, now seen corresponding path program 1 times [2023-11-12 00:58:05,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:58:05,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499320138] [2023-11-12 00:58:05,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:58:05,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:58:05,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:58:05,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:58:05,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:58:05,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499320138] [2023-11-12 00:58:05,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499320138] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:58:05,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:58:05,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 00:58:05,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818588053] [2023-11-12 00:58:05,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:58:05,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:58:05,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:58:05,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:58:05,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:58:05,632 INFO L87 Difference]: Start difference. First operand has 4750 states, 4670 states have (on average 4.2796573875803) internal successors, (19986), 4749 states have internal predecessors, (19986), 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2023-11-12 00:58:05,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:58:05,864 INFO L93 Difference]: Finished difference Result 2770 states and 9685 transitions. [2023-11-12 00:58:05,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:58:05,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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 [2023-11-12 00:58:05,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:58:05,924 INFO L225 Difference]: With dead ends: 2770 [2023-11-12 00:58:05,925 INFO L226 Difference]: Without dead ends: 2770 [2023-11-12 00:58:05,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:58:05,930 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 15 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:58:05,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:58:05,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2023-11-12 00:58:06,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2770. [2023-11-12 00:58:06,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2770 states, 2706 states have (on average 3.5790835181079084) internal successors, (9685), 2769 states have internal predecessors, (9685), 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) [2023-11-12 00:58:06,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 9685 transitions. [2023-11-12 00:58:06,249 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 9685 transitions. Word has length 4 [2023-11-12 00:58:06,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:58:06,250 INFO L495 AbstractCegarLoop]: Abstraction has 2770 states and 9685 transitions. [2023-11-12 00:58:06,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2023-11-12 00:58:06,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 9685 transitions. [2023-11-12 00:58:06,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:58:06,252 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:58:06,252 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:58:06,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:58:06,253 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 00:58:06,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:58:06,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1091847088, now seen corresponding path program 1 times [2023-11-12 00:58:06,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:58:06,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377383132] [2023-11-12 00:58:06,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:58:06,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:58:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:58:06,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:58:06,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:58:06,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377383132] [2023-11-12 00:58:06,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377383132] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:58:06,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:58:06,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:58:06,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162848928] [2023-11-12 00:58:06,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:58:06,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:58:06,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:58:06,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:58:06,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:58:06,486 INFO L87 Difference]: Start difference. First operand 2770 states and 9685 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) 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) [2023-11-12 00:58:06,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:58:06,723 INFO L93 Difference]: Finished difference Result 1622 states and 5671 transitions. [2023-11-12 00:58:06,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:58:06,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) 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 8 [2023-11-12 00:58:06,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:58:06,742 INFO L225 Difference]: With dead ends: 1622 [2023-11-12 00:58:06,743 INFO L226 Difference]: Without dead ends: 1622 [2023-11-12 00:58:06,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:58:06,745 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 32 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:58:06,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 4 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:58:06,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2023-11-12 00:58:06,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1622. [2023-11-12 00:58:06,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1622 states, 1608 states have (on average 3.5267412935323383) internal successors, (5671), 1621 states have internal predecessors, (5671), 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) [2023-11-12 00:58:06,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 5671 transitions. [2023-11-12 00:58:06,839 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 5671 transitions. Word has length 8 [2023-11-12 00:58:06,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:58:06,839 INFO L495 AbstractCegarLoop]: Abstraction has 1622 states and 5671 transitions. [2023-11-12 00:58:06,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) 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) [2023-11-12 00:58:06,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 5671 transitions. [2023-11-12 00:58:06,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 00:58:06,842 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:58:06,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:58:06,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:58:06,843 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 00:58:06,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:58:06,843 INFO L85 PathProgramCache]: Analyzing trace with hash -512548847, now seen corresponding path program 1 times [2023-11-12 00:58:06,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:58:06,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825465721] [2023-11-12 00:58:06,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:58:06,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:58:06,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:58:06,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:58:06,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:58:06,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825465721] [2023-11-12 00:58:06,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825465721] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:58:06,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:58:06,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:58:06,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041760667] [2023-11-12 00:58:06,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:58:06,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:58:06,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:58:06,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:58:06,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:58:06,967 INFO L87 Difference]: Start difference. First operand 1622 states and 5671 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-12 00:58:07,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:58:07,126 INFO L93 Difference]: Finished difference Result 1072 states and 3644 transitions. [2023-11-12 00:58:07,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:58:07,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2023-11-12 00:58:07,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:58:07,138 INFO L225 Difference]: With dead ends: 1072 [2023-11-12 00:58:07,139 INFO L226 Difference]: Without dead ends: 1072 [2023-11-12 00:58:07,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:58:07,140 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 27 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:58:07,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 3 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:58:07,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2023-11-12 00:58:07,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2023-11-12 00:58:07,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1062 states have (on average 3.431261770244821) internal successors, (3644), 1071 states have internal predecessors, (3644), 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) [2023-11-12 00:58:07,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 3644 transitions. [2023-11-12 00:58:07,189 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 3644 transitions. Word has length 9 [2023-11-12 00:58:07,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:58:07,189 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 3644 transitions. [2023-11-12 00:58:07,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-12 00:58:07,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 3644 transitions. [2023-11-12 00:58:07,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 00:58:07,199 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:58:07,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:58:07,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:58:07,200 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 00:58:07,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:58:07,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1336719810, now seen corresponding path program 1 times [2023-11-12 00:58:07,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:58:07,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340911303] [2023-11-12 00:58:07,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:58:07,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:58:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:58:07,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:58:07,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:58:07,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340911303] [2023-11-12 00:58:07,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340911303] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:58:07,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:58:07,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:58:07,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160440058] [2023-11-12 00:58:07,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:58:07,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:58:07,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:58:07,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:58:07,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:58:07,394 INFO L87 Difference]: Start difference. First operand 1072 states and 3644 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2023-11-12 00:58:07,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:58:07,619 INFO L93 Difference]: Finished difference Result 910 states and 3203 transitions. [2023-11-12 00:58:07,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:58:07,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 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 14 [2023-11-12 00:58:07,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:58:07,629 INFO L225 Difference]: With dead ends: 910 [2023-11-12 00:58:07,630 INFO L226 Difference]: Without dead ends: 910 [2023-11-12 00:58:07,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:58:07,631 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 44 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:58:07,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 4 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:58:07,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2023-11-12 00:58:07,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 910. [2023-11-12 00:58:07,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 906 states have (on average 3.535320088300221) internal successors, (3203), 909 states have internal predecessors, (3203), 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) [2023-11-12 00:58:07,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 3203 transitions. [2023-11-12 00:58:07,672 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 3203 transitions. Word has length 14 [2023-11-12 00:58:07,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:58:07,673 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 3203 transitions. [2023-11-12 00:58:07,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2023-11-12 00:58:07,673 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 3203 transitions. [2023-11-12 00:58:07,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 00:58:07,677 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:58:07,677 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:58:07,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:58:07,678 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 00:58:07,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:58:07,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1067498957, now seen corresponding path program 1 times [2023-11-12 00:58:07,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:58:07,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525448628] [2023-11-12 00:58:07,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:58:07,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:58:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:58:07,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:58:07,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:58:07,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525448628] [2023-11-12 00:58:07,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525448628] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:58:07,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:58:07,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:58:07,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920102309] [2023-11-12 00:58:07,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:58:07,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:58:07,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:58:07,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:58:07,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:58:07,846 INFO L87 Difference]: Start difference. First operand 910 states and 3203 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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) [2023-11-12 00:58:08,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:58:08,030 INFO L93 Difference]: Finished difference Result 894 states and 3175 transitions. [2023-11-12 00:58:08,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:58:08,031 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 19 [2023-11-12 00:58:08,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:58:08,031 INFO L225 Difference]: With dead ends: 894 [2023-11-12 00:58:08,031 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:58:08,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:58:08,032 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 60 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:58:08,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 4 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:58:08,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:58:08,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:58:08,034 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) [2023-11-12 00:58:08,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:58:08,034 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2023-11-12 00:58:08,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:58:08,034 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:58:08,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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) [2023-11-12 00:58:08,034 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:58:08,034 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:58:08,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-12 00:58:08,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-12 00:58:08,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-12 00:58:08,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-12 00:58:08,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-12 00:58:08,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-12 00:58:08,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-12 00:58:08,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-12 00:58:08,039 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-12 00:58:08,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-12 00:58:08,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-12 00:58:08,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-12 00:58:08,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-12 00:58:08,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-12 00:58:08,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-12 00:58:08,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-12 00:58:08,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-12 00:58:08,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-12 00:58:08,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-12 00:58:08,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-12 00:58:08,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:58:08,048 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-12 00:58:08,053 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 00:58:08,053 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:58:08,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:58:08 BasicIcfg [2023-11-12 00:58:08,059 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:58:08,060 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:58:08,061 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:58:08,061 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:58:08,061 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:57:51" (3/4) ... [2023-11-12 00:58:08,063 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:58:08,066 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-12 00:58:08,066 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-12 00:58:08,066 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-12 00:58:08,067 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-12 00:58:08,075 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2023-11-12 00:58:08,075 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-12 00:58:08,076 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 00:58:08,076 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:58:08,192 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5333ac7e-7ac0-47c4-892a-d8d440171b67/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:58:08,192 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5333ac7e-7ac0-47c4-892a-d8d440171b67/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:58:08,193 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:58:08,193 INFO L158 Benchmark]: Toolchain (without parser) took 19512.04ms. Allocated memory was 155.2MB in the beginning and 270.5MB in the end (delta: 115.3MB). Free memory was 107.7MB in the beginning and 117.3MB in the end (delta: -9.6MB). Peak memory consumption was 107.3MB. Max. memory is 16.1GB. [2023-11-12 00:58:08,194 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 155.2MB. Free memory is still 99.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:58:08,194 INFO L158 Benchmark]: CACSL2BoogieTranslator took 785.45ms. Allocated memory is still 155.2MB. Free memory was 107.4MB in the beginning and 83.0MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-12 00:58:08,194 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.28ms. Allocated memory is still 155.2MB. Free memory was 83.0MB in the beginning and 80.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:58:08,195 INFO L158 Benchmark]: Boogie Preprocessor took 64.07ms. Allocated memory is still 155.2MB. Free memory was 80.4MB in the beginning and 78.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:58:08,195 INFO L158 Benchmark]: RCFGBuilder took 1412.45ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 78.0MB in the beginning and 100.4MB in the end (delta: -22.3MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2023-11-12 00:58:08,196 INFO L158 Benchmark]: TraceAbstraction took 17014.83ms. Allocated memory was 186.6MB in the beginning and 270.5MB in the end (delta: 83.9MB). Free memory was 100.4MB in the beginning and 123.6MB in the end (delta: -23.3MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. [2023-11-12 00:58:08,196 INFO L158 Benchmark]: Witness Printer took 132.79ms. Allocated memory is still 270.5MB. Free memory was 123.6MB in the beginning and 117.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 00:58:08,201 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 155.2MB. Free memory is still 99.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 785.45ms. Allocated memory is still 155.2MB. Free memory was 107.4MB in the beginning and 83.0MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.28ms. Allocated memory is still 155.2MB. Free memory was 83.0MB in the beginning and 80.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.07ms. Allocated memory is still 155.2MB. Free memory was 80.4MB in the beginning and 78.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1412.45ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 78.0MB in the beginning and 100.4MB in the end (delta: -22.3MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * TraceAbstraction took 17014.83ms. Allocated memory was 186.6MB in the beginning and 270.5MB in the end (delta: 83.9MB). Free memory was 100.4MB in the beginning and 123.6MB in the end (delta: -23.3MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. * Witness Printer took 132.79ms. Allocated memory is still 270.5MB. Free memory was 123.6MB in the beginning and 117.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.4s, 168 PlacesBefore, 47 PlacesAfterwards, 158 TransitionsBefore, 35 TransitionsAfterwards, 3782 CoEnabledTransitionPairs, 7 FixpointIterations, 61 TrivialSequentialCompositions, 65 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 143 TotalNumberOfCompositions, 10876 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5263, independent: 4977, independent conditional: 0, independent unconditional: 4977, dependent: 286, dependent conditional: 0, dependent unconditional: 286, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2612, independent: 2549, independent conditional: 0, independent unconditional: 2549, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2612, independent: 2480, independent conditional: 0, independent unconditional: 2480, dependent: 132, dependent conditional: 0, dependent unconditional: 132, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 132, independent: 69, independent conditional: 0, independent unconditional: 69, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1021, independent: 230, independent conditional: 0, independent unconditional: 230, dependent: 791, dependent conditional: 0, dependent unconditional: 791, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5263, independent: 2428, independent conditional: 0, independent unconditional: 2428, dependent: 223, dependent conditional: 0, dependent unconditional: 223, unknown: 2612, unknown conditional: 0, unknown unconditional: 2612] , Statistics on independence cache: Total cache size (in pairs): 272, Positive cache size: 243, Positive conditional cache size: 0, Positive unconditional cache size: 243, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 803]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 803]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 831]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 831]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 848]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 848]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 195 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 16.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 178 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 178 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 369 IncrementalHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 6 mSDtfsCounter, 369 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4750occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 147 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be correct! [2023-11-12 00:58:08,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5333ac7e-7ac0-47c4-892a-d8d440171b67/bin/utaipan-verify-NcY6lQBIFX/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