./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_e3f35fb0-907f-494f-84f4-0855488baeb4/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f35fb0-907f-494f-84f4-0855488baeb4/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f35fb0-907f-494f-84f4-0855488baeb4/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f35fb0-907f-494f-84f4-0855488baeb4/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f35fb0-907f-494f-84f4-0855488baeb4/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f35fb0-907f-494f-84f4-0855488baeb4/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 55711f117aca8cc6da45707674eed41f8615ce4fb09ace088988b9afc0dc0851 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:29:36,752 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:29:36,815 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f35fb0-907f-494f-84f4-0855488baeb4/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 12:29:36,819 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:29:36,820 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:29:36,845 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:29:36,845 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:29:36,846 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:29:36,846 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:29:36,847 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:29:36,848 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:29:36,848 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:29:36,849 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:29:36,849 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 12:29:36,850 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:29:36,850 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:29:36,851 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 12:29:36,851 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 12:29:36,852 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:29:36,853 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 12:29:36,853 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 12:29:36,854 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 12:29:36,855 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:29:36,855 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:29:36,856 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 12:29:36,856 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 12:29:36,857 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 12:29:36,857 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:29:36,857 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:29:36,858 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:29:36,858 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:29:36,859 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 12:29:36,859 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:29:36,859 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:29:36,859 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:29:36,860 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:29:36,860 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:29:36,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:29:36,860 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:29:36,860 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:29:36,861 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:29:36,861 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 12:29:36,861 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 12:29:36,861 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:29:36,862 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:29:36,862 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:29:36,862 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:29:36,862 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_e3f35fb0-907f-494f-84f4-0855488baeb4/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f35fb0-907f-494f-84f4-0855488baeb4/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55711f117aca8cc6da45707674eed41f8615ce4fb09ace088988b9afc0dc0851 [2023-12-02 12:29:37,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:29:37,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:29:37,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:29:37,103 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:29:37,103 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:29:37,104 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f35fb0-907f-494f-84f4-0855488baeb4/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-12-02 12:29:39,849 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:29:40,092 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:29:40,093 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f35fb0-907f-494f-84f4-0855488baeb4/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-12-02 12:29:40,110 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f35fb0-907f-494f-84f4-0855488baeb4/bin/utaipan-verify-nQ1chXbOIh/data/0f135544c/e995d22176cb4b0fad4ea4709cbe0dbc/FLAG2ceeaad5a [2023-12-02 12:29:40,127 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f35fb0-907f-494f-84f4-0855488baeb4/bin/utaipan-verify-nQ1chXbOIh/data/0f135544c/e995d22176cb4b0fad4ea4709cbe0dbc [2023-12-02 12:29:40,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:29:40,131 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:29:40,133 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:29:40,133 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:29:40,139 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:29:40,140 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:29:40" (1/1) ... [2023-12-02 12:29:40,141 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@780891ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40, skipping insertion in model container [2023-12-02 12:29:40,142 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:29:40" (1/1) ... [2023-12-02 12:29:40,194 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:29:40,369 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f35fb0-907f-494f-84f4-0855488baeb4/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-12-02 12:29:40,543 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:29:40,555 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:29:40,570 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f35fb0-907f-494f-84f4-0855488baeb4/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-12-02 12:29:40,603 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:29:40,640 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 12:29:40,641 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 12:29:40,650 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:29:40,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40 WrapperNode [2023-12-02 12:29:40,651 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:29:40,652 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:29:40,652 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:29:40,652 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:29:40,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (1/1) ... [2023-12-02 12:29:40,675 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (1/1) ... [2023-12-02 12:29:40,698 INFO L138 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 80 [2023-12-02 12:29:40,699 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:29:40,699 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:29:40,700 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:29:40,700 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:29:40,709 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (1/1) ... [2023-12-02 12:29:40,709 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (1/1) ... [2023-12-02 12:29:40,713 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (1/1) ... [2023-12-02 12:29:40,713 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (1/1) ... [2023-12-02 12:29:40,720 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (1/1) ... [2023-12-02 12:29:40,722 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (1/1) ... [2023-12-02 12:29:40,724 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (1/1) ... [2023-12-02 12:29:40,726 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (1/1) ... [2023-12-02 12:29:40,729 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:29:40,730 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:29:40,730 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:29:40,730 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:29:40,731 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (1/1) ... [2023-12-02 12:29:40,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:29:40,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f35fb0-907f-494f-84f4-0855488baeb4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:29:40,765 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f35fb0-907f-494f-84f4-0855488baeb4/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:29:40,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f35fb0-907f-494f-84f4-0855488baeb4/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:29:40,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 12:29:40,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-02 12:29:40,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:29:40,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 12:29:40,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 12:29:40,804 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-12-02 12:29:40,804 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-12-02 12:29:40,804 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-12-02 12:29:40,804 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-12-02 12:29:40,804 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-12-02 12:29:40,805 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-12-02 12:29:40,805 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-12-02 12:29:40,805 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-12-02 12:29:40,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 12:29:40,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-02 12:29:40,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:29:40,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:29:40,807 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 12:29:40,959 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:29:40,961 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:29:41,147 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:29:41,252 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:29:41,252 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 12:29:41,253 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:29:41 BoogieIcfgContainer [2023-12-02 12:29:41,253 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:29:41,256 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:29:41,256 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:29:41,259 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:29:41,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:29:40" (1/3) ... [2023-12-02 12:29:41,260 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f86a89a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:29:41, skipping insertion in model container [2023-12-02 12:29:41,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (2/3) ... [2023-12-02 12:29:41,260 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f86a89a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:29:41, skipping insertion in model container [2023-12-02 12:29:41,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:29:41" (3/3) ... [2023-12-02 12:29:41,262 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-12-02 12:29:41,268 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-12-02 12:29:41,276 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:29:41,277 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 12:29:41,277 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 12:29:41,318 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-02 12:29:41,342 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 45 transitions, 106 flow [2023-12-02 12:29:42,058 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 16564 states, 16563 states have (on average 4.234015576888245) internal successors, (70128), 16563 states have internal predecessors, (70128), 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) [2023-12-02 12:29:42,079 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:29:42,086 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;@5a44c044, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:29:42,086 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-12-02 12:29:42,134 INFO L276 IsEmpty]: Start isEmpty. Operand has 16564 states, 16563 states have (on average 4.234015576888245) internal successors, (70128), 16563 states have internal predecessors, (70128), 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) [2023-12-02 12:29:42,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 12:29:42,168 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:29:42,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:29:42,169 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-02 12:29:42,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:29:42,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1159113992, now seen corresponding path program 1 times [2023-12-02 12:29:42,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:29:42,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144116917] [2023-12-02 12:29:42,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:29:42,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:29:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:29:42,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:29:42,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:29:42,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144116917] [2023-12-02 12:29:42,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144116917] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:29:42,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:29:42,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:29:42,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513989489] [2023-12-02 12:29:42,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:29:42,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 12:29:42,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:29:42,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 12:29:42,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 12:29:42,766 INFO L87 Difference]: Start difference. First operand has 16564 states, 16563 states have (on average 4.234015576888245) internal successors, (70128), 16563 states have internal predecessors, (70128), 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 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 12:29:43,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:29:43,179 INFO L93 Difference]: Finished difference Result 15528 states and 62492 transitions. [2023-12-02 12:29:43,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 12:29:43,182 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-12-02 12:29:43,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:29:43,431 INFO L225 Difference]: With dead ends: 15528 [2023-12-02 12:29:43,431 INFO L226 Difference]: Without dead ends: 13764 [2023-12-02 12:29:43,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:29:43,436 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 70 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:29:43,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 58 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:29:43,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13764 states. [2023-12-02 12:29:44,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13764 to 13764. [2023-12-02 12:29:44,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13764 states, 13763 states have (on average 4.078180629223279) internal successors, (56128), 13763 states have internal predecessors, (56128), 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) [2023-12-02 12:29:44,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13764 states to 13764 states and 56128 transitions. [2023-12-02 12:29:44,484 INFO L78 Accepts]: Start accepts. Automaton has 13764 states and 56128 transitions. Word has length 16 [2023-12-02 12:29:44,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:29:44,485 INFO L495 AbstractCegarLoop]: Abstraction has 13764 states and 56128 transitions. [2023-12-02 12:29:44,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 12:29:44,486 INFO L276 IsEmpty]: Start isEmpty. Operand 13764 states and 56128 transitions. [2023-12-02 12:29:44,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 12:29:44,504 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:29:44,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:29:44,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 12:29:44,505 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-02 12:29:44,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:29:44,506 INFO L85 PathProgramCache]: Analyzing trace with hash -344345082, now seen corresponding path program 1 times [2023-12-02 12:29:44,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:29:44,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214338106] [2023-12-02 12:29:44,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:29:44,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:29:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:29:44,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:29:44,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:29:44,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214338106] [2023-12-02 12:29:44,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214338106] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:29:44,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:29:44,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 12:29:44,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870287590] [2023-12-02 12:29:44,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:29:44,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:29:44,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:29:44,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:29:44,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:29:44,745 INFO L87 Difference]: Start difference. First operand 13764 states and 56128 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2023-12-02 12:29:45,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:29:45,244 INFO L93 Difference]: Finished difference Result 10088 states and 38532 transitions. [2023-12-02 12:29:45,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 12:29:45,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2023-12-02 12:29:45,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:29:45,295 INFO L225 Difference]: With dead ends: 10088 [2023-12-02 12:29:45,295 INFO L226 Difference]: Without dead ends: 8724 [2023-12-02 12:29:45,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-02 12:29:45,297 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 130 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:29:45,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 72 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:29:45,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8724 states. [2023-12-02 12:29:45,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8724 to 8724. [2023-12-02 12:29:45,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8724 states, 8723 states have (on average 3.834460621345867) internal successors, (33448), 8723 states have internal predecessors, (33448), 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) [2023-12-02 12:29:45,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8724 states to 8724 states and 33448 transitions. [2023-12-02 12:29:45,696 INFO L78 Accepts]: Start accepts. Automaton has 8724 states and 33448 transitions. Word has length 20 [2023-12-02 12:29:45,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:29:45,696 INFO L495 AbstractCegarLoop]: Abstraction has 8724 states and 33448 transitions. [2023-12-02 12:29:45,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2023-12-02 12:29:45,697 INFO L276 IsEmpty]: Start isEmpty. Operand 8724 states and 33448 transitions. [2023-12-02 12:29:45,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 12:29:45,778 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:29:45,779 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:29:45,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 12:29:45,779 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-02 12:29:45,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:29:45,780 INFO L85 PathProgramCache]: Analyzing trace with hash 869186760, now seen corresponding path program 1 times [2023-12-02 12:29:45,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:29:45,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573001567] [2023-12-02 12:29:45,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:29:45,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:29:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:29:45,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:29:45,955 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:29:45,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573001567] [2023-12-02 12:29:45,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573001567] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:29:45,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:29:45,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:29:45,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973463789] [2023-12-02 12:29:45,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:29:45,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 12:29:45,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:29:45,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 12:29:45,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-02 12:29:45,958 INFO L87 Difference]: Start difference. First operand 8724 states and 33448 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2023-12-02 12:29:46,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:29:46,167 INFO L93 Difference]: Finished difference Result 5980 states and 22224 transitions. [2023-12-02 12:29:46,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:29:46,168 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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 24 [2023-12-02 12:29:46,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:29:46,186 INFO L225 Difference]: With dead ends: 5980 [2023-12-02 12:29:46,187 INFO L226 Difference]: Without dead ends: 5336 [2023-12-02 12:29:46,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-12-02 12:29:46,188 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 203 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:29:46,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 86 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:29:46,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5336 states. [2023-12-02 12:29:46,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5336 to 5336. [2023-12-02 12:29:46,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5336 states, 5335 states have (on average 3.72933458294283) internal successors, (19896), 5335 states have internal predecessors, (19896), 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) [2023-12-02 12:29:46,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5336 states to 5336 states and 19896 transitions. [2023-12-02 12:29:46,339 INFO L78 Accepts]: Start accepts. Automaton has 5336 states and 19896 transitions. Word has length 24 [2023-12-02 12:29:46,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:29:46,340 INFO L495 AbstractCegarLoop]: Abstraction has 5336 states and 19896 transitions. [2023-12-02 12:29:46,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2023-12-02 12:29:46,340 INFO L276 IsEmpty]: Start isEmpty. Operand 5336 states and 19896 transitions. [2023-12-02 12:29:46,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-02 12:29:46,353 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:29:46,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:29:46,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 12:29:46,354 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-02 12:29:46,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:29:46,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1428433468, now seen corresponding path program 1 times [2023-12-02 12:29:46,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:29:46,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244649115] [2023-12-02 12:29:46,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:29:46,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:29:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:29:46,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:29:46,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:29:46,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244649115] [2023-12-02 12:29:46,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244649115] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:29:46,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:29:46,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 12:29:46,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349929958] [2023-12-02 12:29:46,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:29:46,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 12:29:46,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:29:46,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 12:29:46,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 12:29:46,564 INFO L87 Difference]: Start difference. First operand 5336 states and 19896 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 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) [2023-12-02 12:29:46,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:29:46,748 INFO L93 Difference]: Finished difference Result 4488 states and 16904 transitions. [2023-12-02 12:29:46,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 12:29:46,749 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 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 29 [2023-12-02 12:29:46,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:29:46,769 INFO L225 Difference]: With dead ends: 4488 [2023-12-02 12:29:46,770 INFO L226 Difference]: Without dead ends: 4328 [2023-12-02 12:29:46,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-02 12:29:46,771 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 202 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:29:46,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 72 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:29:46,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4328 states. [2023-12-02 12:29:46,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4328 to 4328. [2023-12-02 12:29:46,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4328 states, 4327 states have (on average 3.7827594176103534) internal successors, (16368), 4327 states have internal predecessors, (16368), 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) [2023-12-02 12:29:46,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4328 states to 4328 states and 16368 transitions. [2023-12-02 12:29:46,905 INFO L78 Accepts]: Start accepts. Automaton has 4328 states and 16368 transitions. Word has length 29 [2023-12-02 12:29:46,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:29:46,906 INFO L495 AbstractCegarLoop]: Abstraction has 4328 states and 16368 transitions. [2023-12-02 12:29:46,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 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) [2023-12-02 12:29:46,906 INFO L276 IsEmpty]: Start isEmpty. Operand 4328 states and 16368 transitions. [2023-12-02 12:29:46,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-02 12:29:46,919 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:29:46,919 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:29:46,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 12:29:46,920 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-02 12:29:46,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:29:46,920 INFO L85 PathProgramCache]: Analyzing trace with hash 560318941, now seen corresponding path program 1 times [2023-12-02 12:29:46,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:29:46,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296119849] [2023-12-02 12:29:46,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:29:46,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:29:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:29:47,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:29:47,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:29:47,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296119849] [2023-12-02 12:29:47,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296119849] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:29:47,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:29:47,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 12:29:47,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855985479] [2023-12-02 12:29:47,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:29:47,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 12:29:47,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:29:47,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 12:29:47,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-02 12:29:47,140 INFO L87 Difference]: Start difference. First operand 4328 states and 16368 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 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) [2023-12-02 12:29:47,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:29:47,602 INFO L93 Difference]: Finished difference Result 10856 states and 39976 transitions. [2023-12-02 12:29:47,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 12:29:47,603 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 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 34 [2023-12-02 12:29:47,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:29:47,616 INFO L225 Difference]: With dead ends: 10856 [2023-12-02 12:29:47,617 INFO L226 Difference]: Without dead ends: 3240 [2023-12-02 12:29:47,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2023-12-02 12:29:47,618 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 88 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 12:29:47,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 230 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 12:29:47,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3240 states. [2023-12-02 12:29:47,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3240 to 2616. [2023-12-02 12:29:47,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2616 states, 2615 states have (on average 3.5304015296367113) internal successors, (9232), 2615 states have internal predecessors, (9232), 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) [2023-12-02 12:29:47,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2616 states to 2616 states and 9232 transitions. [2023-12-02 12:29:47,709 INFO L78 Accepts]: Start accepts. Automaton has 2616 states and 9232 transitions. Word has length 34 [2023-12-02 12:29:47,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:29:47,709 INFO L495 AbstractCegarLoop]: Abstraction has 2616 states and 9232 transitions. [2023-12-02 12:29:47,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 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) [2023-12-02 12:29:47,710 INFO L276 IsEmpty]: Start isEmpty. Operand 2616 states and 9232 transitions. [2023-12-02 12:29:47,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-02 12:29:47,718 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:29:47,719 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:29:47,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 12:29:47,719 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-02 12:29:47,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:29:47,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1927690137, now seen corresponding path program 2 times [2023-12-02 12:29:47,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:29:47,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220225819] [2023-12-02 12:29:47,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:29:47,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:29:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:29:47,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:29:47,920 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:29:47,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220225819] [2023-12-02 12:29:47,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220225819] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:29:47,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:29:47,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 12:29:47,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852311618] [2023-12-02 12:29:47,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:29:47,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 12:29:47,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:29:47,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 12:29:47,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-02 12:29:47,924 INFO L87 Difference]: Start difference. First operand 2616 states and 9232 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 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) [2023-12-02 12:29:48,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:29:48,089 INFO L93 Difference]: Finished difference Result 4584 states and 16288 transitions. [2023-12-02 12:29:48,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 12:29:48,090 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 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 34 [2023-12-02 12:29:48,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:29:48,098 INFO L225 Difference]: With dead ends: 4584 [2023-12-02 12:29:48,099 INFO L226 Difference]: Without dead ends: 2406 [2023-12-02 12:29:48,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-02 12:29:48,100 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 59 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:29:48,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 125 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:29:48,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2023-12-02 12:29:48,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2086. [2023-12-02 12:29:48,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2086 states, 2085 states have (on average 3.5414868105515587) internal successors, (7384), 2085 states have internal predecessors, (7384), 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) [2023-12-02 12:29:48,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2086 states to 2086 states and 7384 transitions. [2023-12-02 12:29:48,164 INFO L78 Accepts]: Start accepts. Automaton has 2086 states and 7384 transitions. Word has length 34 [2023-12-02 12:29:48,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:29:48,164 INFO L495 AbstractCegarLoop]: Abstraction has 2086 states and 7384 transitions. [2023-12-02 12:29:48,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 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) [2023-12-02 12:29:48,165 INFO L276 IsEmpty]: Start isEmpty. Operand 2086 states and 7384 transitions. [2023-12-02 12:29:48,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-02 12:29:48,170 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:29:48,170 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:29:48,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 12:29:48,171 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-02 12:29:48,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:29:48,171 INFO L85 PathProgramCache]: Analyzing trace with hash -189303777, now seen corresponding path program 3 times [2023-12-02 12:29:48,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:29:48,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606219606] [2023-12-02 12:29:48,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:29:48,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:29:48,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:29:48,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:29:48,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:29:48,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606219606] [2023-12-02 12:29:48,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606219606] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:29:48,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:29:48,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 12:29:48,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179277420] [2023-12-02 12:29:48,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:29:48,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 12:29:48,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:29:48,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 12:29:48,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-02 12:29:48,360 INFO L87 Difference]: Start difference. First operand 2086 states and 7384 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 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) [2023-12-02 12:29:48,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:29:48,466 INFO L93 Difference]: Finished difference Result 2054 states and 7288 transitions. [2023-12-02 12:29:48,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:29:48,466 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 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 34 [2023-12-02 12:29:48,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:29:48,467 INFO L225 Difference]: With dead ends: 2054 [2023-12-02 12:29:48,467 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 12:29:48,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-02 12:29:48,468 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 51 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:29:48,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 71 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:29:48,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 12:29:48,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 12:29:48,470 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) [2023-12-02 12:29:48,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 12:29:48,471 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2023-12-02 12:29:48,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:29:48,471 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 12:29:48,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 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) [2023-12-02 12:29:48,472 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 12:29:48,472 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 12:29:48,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-12-02 12:29:48,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2023-12-02 12:29:48,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-12-02 12:29:48,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-12-02 12:29:48,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-12-02 12:29:48,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 12:29:48,479 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2023-12-02 12:29:48,482 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-02 12:29:48,482 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 12:29:48,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:29:48 BasicIcfg [2023-12-02 12:29:48,485 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 12:29:48,486 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 12:29:48,486 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 12:29:48,486 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 12:29:48,487 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:29:41" (3/4) ... [2023-12-02 12:29:48,489 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 12:29:48,492 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-12-02 12:29:48,493 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-12-02 12:29:48,493 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-12-02 12:29:48,493 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-12-02 12:29:48,499 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2023-12-02 12:29:48,499 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-12-02 12:29:48,499 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-12-02 12:29:48,500 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 12:29:48,578 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f35fb0-907f-494f-84f4-0855488baeb4/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 12:29:48,579 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f35fb0-907f-494f-84f4-0855488baeb4/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 12:29:48,579 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 12:29:48,580 INFO L158 Benchmark]: Toolchain (without parser) took 8449.13ms. Allocated memory was 169.9MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 129.9MB in the beginning and 813.9MB in the end (delta: -684.0MB). Peak memory consumption was 472.2MB. Max. memory is 16.1GB. [2023-12-02 12:29:48,581 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 121.6MB. Free memory was 89.1MB in the beginning and 89.1MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:29:48,582 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.20ms. Allocated memory is still 169.9MB. Free memory was 129.2MB in the beginning and 108.9MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-02 12:29:48,582 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.93ms. Allocated memory is still 169.9MB. Free memory was 108.9MB in the beginning and 106.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:29:48,583 INFO L158 Benchmark]: Boogie Preprocessor took 29.83ms. Allocated memory is still 169.9MB. Free memory was 106.7MB in the beginning and 104.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:29:48,583 INFO L158 Benchmark]: RCFGBuilder took 523.13ms. Allocated memory is still 169.9MB. Free memory was 104.7MB in the beginning and 81.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-12-02 12:29:48,583 INFO L158 Benchmark]: TraceAbstraction took 7229.18ms. Allocated memory was 169.9MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 81.0MB in the beginning and 819.2MB in the end (delta: -738.2MB). Peak memory consumption was 419.8MB. Max. memory is 16.1GB. [2023-12-02 12:29:48,584 INFO L158 Benchmark]: Witness Printer took 93.85ms. Allocated memory is still 1.3GB. Free memory was 819.2MB in the beginning and 813.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 12:29:48,586 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 121.6MB. Free memory was 89.1MB in the beginning and 89.1MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 518.20ms. Allocated memory is still 169.9MB. Free memory was 129.2MB in the beginning and 108.9MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.93ms. Allocated memory is still 169.9MB. Free memory was 108.9MB in the beginning and 106.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.83ms. Allocated memory is still 169.9MB. Free memory was 106.7MB in the beginning and 104.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 523.13ms. Allocated memory is still 169.9MB. Free memory was 104.7MB in the beginning and 81.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 7229.18ms. Allocated memory was 169.9MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 81.0MB in the beginning and 819.2MB in the end (delta: -738.2MB). Peak memory consumption was 419.8MB. Max. memory is 16.1GB. * Witness Printer took 93.85ms. Allocated memory is still 1.3GB. Free memory was 819.2MB in the beginning and 813.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 75 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 7.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.2s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 803 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 803 mSDsluCounter, 714 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 553 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 712 IncrementalHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 161 mSDtfsCounter, 712 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16564occurred in iteration=0, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 7 MinimizatonAttempts, 944 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 191 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 184 ConstructedInterpolants, 0 QuantifiedInterpolants, 810 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-02 12:29:48,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f35fb0-907f-494f-84f4-0855488baeb4/bin/utaipan-verify-nQ1chXbOIh/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