./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e19e922-54ce-4a27-bcb6-f4487339b38c/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e19e922-54ce-4a27-bcb6-f4487339b38c/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_6e19e922-54ce-4a27-bcb6-f4487339b38c/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e19e922-54ce-4a27-bcb6-f4487339b38c/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e19e922-54ce-4a27-bcb6-f4487339b38c/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_6e19e922-54ce-4a27-bcb6-f4487339b38c/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 e136f4ab00a1c93eb400bb9f2a21b2887cfec20e18dff1c5960bc25f16f1bcad --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:09:37,181 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:09:37,317 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e19e922-54ce-4a27-bcb6-f4487339b38c/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-12 00:09:37,322 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:09:37,322 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:09:37,367 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:09:37,368 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:09:37,369 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:09:37,370 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:09:37,375 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:09:37,375 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:09:37,376 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:09:37,376 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:09:37,378 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:09:37,378 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:09:37,379 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:09:37,379 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:09:37,380 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:09:37,380 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:09:37,381 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:09:37,381 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:09:37,382 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:09:37,383 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:09:37,383 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:09:37,384 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:09:37,384 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:09:37,384 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:09:37,385 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:09:37,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:09:37,386 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:09:37,387 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:09:37,387 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:09:37,388 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:09:37,388 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:09:37,388 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:09:37,389 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:09:37,389 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:09:37,389 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:09:37,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:09:37,390 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:09:37,390 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:09:37,390 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:09:37,391 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:09:37,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:09:37,391 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:09:37,392 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:09:37,392 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:09:37,392 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_6e19e922-54ce-4a27-bcb6-f4487339b38c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e19e922-54ce-4a27-bcb6-f4487339b38c/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e136f4ab00a1c93eb400bb9f2a21b2887cfec20e18dff1c5960bc25f16f1bcad [2023-11-12 00:09:37,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:09:37,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:09:37,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:09:37,735 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:09:37,735 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:09:37,737 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e19e922-54ce-4a27-bcb6-f4487339b38c/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-12 00:09:40,905 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:09:41,156 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:09:41,157 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e19e922-54ce-4a27-bcb6-f4487339b38c/sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-12 00:09:41,185 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e19e922-54ce-4a27-bcb6-f4487339b38c/bin/utaipan-verify-NcY6lQBIFX/data/1f13cb70b/05132610269f412595e8bf237e4b3129/FLAGb6979fbbb [2023-11-12 00:09:41,208 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e19e922-54ce-4a27-bcb6-f4487339b38c/bin/utaipan-verify-NcY6lQBIFX/data/1f13cb70b/05132610269f412595e8bf237e4b3129 [2023-11-12 00:09:41,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:09:41,216 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:09:41,219 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:09:41,219 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:09:41,224 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:09:41,225 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:09:41" (1/1) ... [2023-11-12 00:09:41,226 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2651b8ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:41, skipping insertion in model container [2023-11-12 00:09:41,226 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:09:41" (1/1) ... [2023-11-12 00:09:41,290 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:09:41,681 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:09:41,694 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:09:41,741 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:09:41,781 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:09:41,781 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:09:41,790 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:09:41,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:41 WrapperNode [2023-11-12 00:09:41,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:09:41,793 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:09:41,793 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:09:41,793 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:09:41,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:41" (1/1) ... [2023-11-12 00:09:41,832 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:41" (1/1) ... [2023-11-12 00:09:41,873 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2023-11-12 00:09:41,874 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:09:41,875 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:09:41,875 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:09:41,875 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:09:41,886 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:41" (1/1) ... [2023-11-12 00:09:41,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:41" (1/1) ... [2023-11-12 00:09:41,907 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:41" (1/1) ... [2023-11-12 00:09:41,907 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:41" (1/1) ... [2023-11-12 00:09:41,914 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:41" (1/1) ... [2023-11-12 00:09:41,919 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:41" (1/1) ... [2023-11-12 00:09:41,922 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:41" (1/1) ... [2023-11-12 00:09:41,938 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:41" (1/1) ... [2023-11-12 00:09:41,942 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:09:41,943 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:09:41,943 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:09:41,944 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:09:41,956 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:41" (1/1) ... [2023-11-12 00:09:41,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:09:41,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e19e922-54ce-4a27-bcb6-f4487339b38c/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:09:41,993 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e19e922-54ce-4a27-bcb6-f4487339b38c/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:09:42,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e19e922-54ce-4a27-bcb6-f4487339b38c/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:09:42,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:09:42,032 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 00:09:42,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:09:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:09:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:09:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 00:09:42,033 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 00:09:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 00:09:42,034 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 00:09:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-12 00:09:42,035 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-12 00:09:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:09:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 00:09:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:09:42,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:09:42,038 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 00:09:42,206 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:09:42,209 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:09:42,506 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:09:42,565 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:09:42,565 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:09:42,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:09:42 BoogieIcfgContainer [2023-11-12 00:09:42,579 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:09:42,582 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:09:42,583 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:09:42,587 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:09:42,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:09:41" (1/3) ... [2023-11-12 00:09:42,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f80128f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:09:42, skipping insertion in model container [2023-11-12 00:09:42,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:41" (2/3) ... [2023-11-12 00:09:42,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f80128f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:09:42, skipping insertion in model container [2023-11-12 00:09:42,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:09:42" (3/3) ... [2023-11-12 00:09:42,590 INFO L112 eAbstractionObserver]: Analyzing ICFG safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-12 00:09:42,618 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 00:09:42,627 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:09:42,627 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-12 00:09:42,627 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:09:42,688 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 00:09:42,724 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:09:42,739 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 97 transitions, 206 flow [2023-11-12 00:09:42,742 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 97 transitions, 206 flow [2023-11-12 00:09:42,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 97 transitions, 206 flow [2023-11-12 00:09:42,826 INFO L124 PetriNetUnfolderBase]: 3/94 cut-off events. [2023-11-12 00:09:42,826 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 00:09:42,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 94 events. 3/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2023-11-12 00:09:42,834 INFO L119 LiptonReduction]: Number of co-enabled transitions 2330 [2023-11-12 00:09:46,550 INFO L134 LiptonReduction]: Checked pairs total: 5587 [2023-11-12 00:09:46,551 INFO L136 LiptonReduction]: Total number of compositions: 90 [2023-11-12 00:09:46,562 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 26 transitions, 64 flow [2023-11-12 00:09:46,712 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 611 states, 585 states have (on average 3.4905982905982906) internal successors, (2042), 610 states have internal predecessors, (2042), 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 00:09:46,737 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:09:46,748 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;@55806b2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:09:46,748 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-12 00:09:46,753 INFO L276 IsEmpty]: Start isEmpty. Operand has 611 states, 585 states have (on average 3.4905982905982906) internal successors, (2042), 610 states have internal predecessors, (2042), 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 00:09:46,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:09:46,760 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:09:46,760 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 00:09:46,761 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-12 00:09:46,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:09:46,772 INFO L85 PathProgramCache]: Analyzing trace with hash 11117956, now seen corresponding path program 1 times [2023-11-12 00:09:46,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:09:46,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557358780] [2023-11-12 00:09:46,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:09:46,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:09:46,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:09:47,171 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 00:09:47,172 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:09:47,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557358780] [2023-11-12 00:09:47,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557358780] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:09:47,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:09:47,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 00:09:47,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899797917] [2023-11-12 00:09:47,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:09:47,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:09:47,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:09:47,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:09:47,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:09:47,229 INFO L87 Difference]: Start difference. First operand has 611 states, 585 states have (on average 3.4905982905982906) internal successors, (2042), 610 states have internal predecessors, (2042), 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 00:09:47,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:09:47,365 INFO L93 Difference]: Finished difference Result 297 states and 725 transitions. [2023-11-12 00:09:47,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:09:47,368 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 00:09:47,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:09:47,386 INFO L225 Difference]: With dead ends: 297 [2023-11-12 00:09:47,386 INFO L226 Difference]: Without dead ends: 297 [2023-11-12 00:09:47,387 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 00:09:47,392 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 8 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:09:47,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:09:47,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2023-11-12 00:09:47,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2023-11-12 00:09:47,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 279 states have (on average 2.598566308243728) internal successors, (725), 296 states have internal predecessors, (725), 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 00:09:47,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 725 transitions. [2023-11-12 00:09:47,481 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 725 transitions. Word has length 4 [2023-11-12 00:09:47,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:09:47,482 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 725 transitions. [2023-11-12 00:09:47,483 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 00:09:47,483 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 725 transitions. [2023-11-12 00:09:47,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:09:47,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:09:47,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:09:47,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:09:47,486 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-12 00:09:47,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:09:47,487 INFO L85 PathProgramCache]: Analyzing trace with hash -301302385, now seen corresponding path program 1 times [2023-11-12 00:09:47,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:09:47,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638417977] [2023-11-12 00:09:47,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:09:47,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:09:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:09:47,613 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 00:09:47,613 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:09:47,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638417977] [2023-11-12 00:09:47,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638417977] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:09:47,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:09:47,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:09:47,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943412157] [2023-11-12 00:09:47,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:09:47,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:09:47,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:09:47,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:09:47,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:09:47,617 INFO L87 Difference]: Start difference. First operand 297 states and 725 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 00:09:47,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:09:47,677 INFO L93 Difference]: Finished difference Result 209 states and 502 transitions. [2023-11-12 00:09:47,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:09:47,678 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 00:09:47,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:09:47,681 INFO L225 Difference]: With dead ends: 209 [2023-11-12 00:09:47,681 INFO L226 Difference]: Without dead ends: 209 [2023-11-12 00:09:47,681 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 00:09:47,683 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 19 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:09:47,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 8 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:09:47,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-11-12 00:09:47,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2023-11-12 00:09:47,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 203 states have (on average 2.4729064039408866) internal successors, (502), 208 states have internal predecessors, (502), 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 00:09:47,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 502 transitions. [2023-11-12 00:09:47,702 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 502 transitions. Word has length 8 [2023-11-12 00:09:47,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:09:47,702 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 502 transitions. [2023-11-12 00:09:47,703 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 00:09:47,703 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 502 transitions. [2023-11-12 00:09:47,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 00:09:47,704 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:09:47,704 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:09:47,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:09:47,705 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-12 00:09:47,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:09:47,706 INFO L85 PathProgramCache]: Analyzing trace with hash -750440670, now seen corresponding path program 1 times [2023-11-12 00:09:47,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:09:47,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325984903] [2023-11-12 00:09:47,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:09:47,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:09:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:09:47,861 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 00:09:47,862 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:09:47,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325984903] [2023-11-12 00:09:47,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325984903] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:09:47,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:09:47,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:09:47,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637780687] [2023-11-12 00:09:47,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:09:47,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:09:47,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:09:47,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:09:47,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:09:47,865 INFO L87 Difference]: Start difference. First operand 209 states and 502 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 00:09:47,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:09:47,942 INFO L93 Difference]: Finished difference Result 106 states and 216 transitions. [2023-11-12 00:09:47,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:09:47,943 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 00:09:47,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:09:47,945 INFO L225 Difference]: With dead ends: 106 [2023-11-12 00:09:47,945 INFO L226 Difference]: Without dead ends: 106 [2023-11-12 00:09:47,946 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 00:09:47,951 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 17 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:09:47,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 6 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:09:47,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-11-12 00:09:47,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2023-11-12 00:09:47,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 103 states have (on average 2.0970873786407767) internal successors, (216), 105 states have internal predecessors, (216), 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 00:09:47,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 216 transitions. [2023-11-12 00:09:47,977 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 216 transitions. Word has length 9 [2023-11-12 00:09:47,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:09:47,978 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 216 transitions. [2023-11-12 00:09:47,978 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 00:09:47,978 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 216 transitions. [2023-11-12 00:09:47,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 00:09:47,981 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:09:47,981 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:09:47,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:09:47,982 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-12 00:09:47,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:09:47,983 INFO L85 PathProgramCache]: Analyzing trace with hash -2136687508, now seen corresponding path program 1 times [2023-11-12 00:09:47,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:09:47,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558305122] [2023-11-12 00:09:47,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:09:47,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:09:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:09:48,126 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 00:09:48,127 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:09:48,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558305122] [2023-11-12 00:09:48,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558305122] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:09:48,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:09:48,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:09:48,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050520021] [2023-11-12 00:09:48,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:09:48,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:09:48,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:09:48,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:09:48,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:09:48,135 INFO L87 Difference]: Start difference. First operand 106 states and 216 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 00:09:48,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:09:48,194 INFO L93 Difference]: Finished difference Result 81 states and 175 transitions. [2023-11-12 00:09:48,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:09:48,195 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 00:09:48,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:09:48,195 INFO L225 Difference]: With dead ends: 81 [2023-11-12 00:09:48,195 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:09:48,196 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 00:09:48,201 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 20 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:09:48,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 6 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:09:48,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:09:48,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:09:48,205 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 00:09:48,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:09:48,206 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2023-11-12 00:09:48,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:09:48,206 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:09:48,207 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 00:09:48,207 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:09:48,207 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:09:48,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-12 00:09:48,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-12 00:09:48,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-12 00:09:48,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-12 00:09:48,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-12 00:09:48,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-12 00:09:48,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-12 00:09:48,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-12 00:09:48,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-12 00:09:48,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-12 00:09:48,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-12 00:09:48,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-12 00:09:48,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-12 00:09:48,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-12 00:09:48,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-12 00:09:48,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:09:48,225 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-12 00:09:48,231 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 00:09:48,231 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:09:48,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:09:48 BasicIcfg [2023-11-12 00:09:48,236 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:09:48,237 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:09:48,237 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:09:48,238 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:09:48,239 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:09:42" (3/4) ... [2023-11-12 00:09:48,241 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:09:48,245 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-12 00:09:48,245 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-12 00:09:48,245 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-12 00:09:48,251 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-12 00:09:48,251 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 00:09:48,251 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 00:09:48,252 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:09:48,331 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e19e922-54ce-4a27-bcb6-f4487339b38c/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:09:48,331 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e19e922-54ce-4a27-bcb6-f4487339b38c/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:09:48,331 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:09:48,332 INFO L158 Benchmark]: Toolchain (without parser) took 7116.23ms. Allocated memory was 140.5MB in the beginning and 190.8MB in the end (delta: 50.3MB). Free memory was 93.8MB in the beginning and 79.8MB in the end (delta: 13.9MB). Peak memory consumption was 67.4MB. Max. memory is 16.1GB. [2023-11-12 00:09:48,332 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 140.5MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:09:48,333 INFO L158 Benchmark]: CACSL2BoogieTranslator took 572.71ms. Allocated memory is still 140.5MB. Free memory was 93.3MB in the beginning and 73.1MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 00:09:48,333 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.62ms. Allocated memory is still 140.5MB. Free memory was 73.1MB in the beginning and 70.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:09:48,334 INFO L158 Benchmark]: Boogie Preprocessor took 67.38ms. Allocated memory is still 140.5MB. Free memory was 70.9MB in the beginning and 69.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:09:48,334 INFO L158 Benchmark]: RCFGBuilder took 636.28ms. Allocated memory was 140.5MB in the beginning and 190.8MB in the end (delta: 50.3MB). Free memory was 69.4MB in the beginning and 160.6MB in the end (delta: -91.2MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2023-11-12 00:09:48,334 INFO L158 Benchmark]: TraceAbstraction took 5654.09ms. Allocated memory is still 190.8MB. Free memory was 159.9MB in the beginning and 84.0MB in the end (delta: 75.9MB). Peak memory consumption was 76.2MB. Max. memory is 16.1GB. [2023-11-12 00:09:48,335 INFO L158 Benchmark]: Witness Printer took 94.35ms. Allocated memory is still 190.8MB. Free memory was 84.0MB in the beginning and 79.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:09:48,337 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 140.5MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 572.71ms. Allocated memory is still 140.5MB. Free memory was 93.3MB in the beginning and 73.1MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.62ms. Allocated memory is still 140.5MB. Free memory was 73.1MB in the beginning and 70.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.38ms. Allocated memory is still 140.5MB. Free memory was 70.9MB in the beginning and 69.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 636.28ms. Allocated memory was 140.5MB in the beginning and 190.8MB in the end (delta: 50.3MB). Free memory was 69.4MB in the beginning and 160.6MB in the end (delta: -91.2MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5654.09ms. Allocated memory is still 190.8MB. Free memory was 159.9MB in the beginning and 84.0MB in the end (delta: 75.9MB). Peak memory consumption was 76.2MB. Max. memory is 16.1GB. * Witness Printer took 94.35ms. Allocated memory is still 190.8MB. Free memory was 84.0MB in the beginning and 79.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 104 PlacesBefore, 35 PlacesAfterwards, 97 TransitionsBefore, 26 TransitionsAfterwards, 2330 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 54 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 90 TotalNumberOfCompositions, 5587 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3014, independent: 2866, independent conditional: 0, independent unconditional: 2866, dependent: 148, dependent conditional: 0, dependent unconditional: 148, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1684, independent: 1638, independent conditional: 0, independent unconditional: 1638, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1684, independent: 1612, independent conditional: 0, independent unconditional: 1612, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 72, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 284, independent: 118, independent conditional: 0, independent unconditional: 118, dependent: 166, dependent conditional: 0, dependent unconditional: 166, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3014, independent: 1228, independent conditional: 0, independent unconditional: 1228, dependent: 102, dependent conditional: 0, dependent unconditional: 102, unknown: 1684, unknown conditional: 0, unknown unconditional: 1684] , Statistics on independence cache: Total cache size (in pairs): 114, Positive cache size: 100, Positive conditional cache size: 0, Positive unconditional cache size: 100, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, 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: 733]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 733]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 745]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 745]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: 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 7 procedures, 124 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 162 IncrementalHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 10 mSDtfsCounter, 162 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=611occurred in iteration=0, InterpolantAutomatonStates: 16, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 93 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-12 00:09:48,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e19e922-54ce-4a27-bcb6-f4487339b38c/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