./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-58.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f9290e-a6d3-4b5a-8691-b4d0604fe5bd/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f9290e-a6d3-4b5a-8691-b4d0604fe5bd/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_66f9290e-a6d3-4b5a-8691-b4d0604fe5bd/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f9290e-a6d3-4b5a-8691-b4d0604fe5bd/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-58.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f9290e-a6d3-4b5a-8691-b4d0604fe5bd/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_66f9290e-a6d3-4b5a-8691-b4d0604fe5bd/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 ecf82f73685a389a6d8ab3479ee5cabf8a5c47771e1a4d141e5607a0c68dd324 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:41:31,067 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:41:31,132 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f9290e-a6d3-4b5a-8691-b4d0604fe5bd/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 12:41:31,136 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:41:31,137 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:41:31,161 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:41:31,161 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:41:31,162 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:41:31,162 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:41:31,163 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:41:31,163 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:41:31,164 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:41:31,164 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:41:31,165 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 12:41:31,165 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:41:31,166 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:41:31,166 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 12:41:31,166 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 12:41:31,167 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:41:31,167 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 12:41:31,168 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 12:41:31,172 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 12:41:31,172 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:41:31,173 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:41:31,173 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 12:41:31,174 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 12:41:31,174 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 12:41:31,174 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:41:31,175 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:41:31,175 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:41:31,175 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:41:31,176 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 12:41:31,176 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:41:31,176 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:41:31,176 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:41:31,177 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:41:31,177 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:41:31,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:41:31,177 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:41:31,178 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:41:31,178 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:41:31,178 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 12:41:31,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 12:41:31,179 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:41:31,179 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:41:31,179 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:41:31,179 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:41:31,179 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_66f9290e-a6d3-4b5a-8691-b4d0604fe5bd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f9290e-a6d3-4b5a-8691-b4d0604fe5bd/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ecf82f73685a389a6d8ab3479ee5cabf8a5c47771e1a4d141e5607a0c68dd324 [2023-12-02 12:41:31,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:41:31,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:41:31,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:41:31,436 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:41:31,437 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:41:31,438 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f9290e-a6d3-4b5a-8691-b4d0604fe5bd/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-58.i [2023-12-02 12:41:34,146 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:41:34,334 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:41:34,335 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f9290e-a6d3-4b5a-8691-b4d0604fe5bd/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-58.i [2023-12-02 12:41:34,344 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f9290e-a6d3-4b5a-8691-b4d0604fe5bd/bin/utaipan-verify-nQ1chXbOIh/data/165610ab0/e623811030364f9b84a5aecb0378aeaf/FLAG136bf0ea5 [2023-12-02 12:41:34,356 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f9290e-a6d3-4b5a-8691-b4d0604fe5bd/bin/utaipan-verify-nQ1chXbOIh/data/165610ab0/e623811030364f9b84a5aecb0378aeaf [2023-12-02 12:41:34,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:41:34,360 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:41:34,361 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:41:34,361 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:41:34,367 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:41:34,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:41:34" (1/1) ... [2023-12-02 12:41:34,369 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b73339c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:34, skipping insertion in model container [2023-12-02 12:41:34,369 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:41:34" (1/1) ... [2023-12-02 12:41:34,400 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:41:34,548 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_66f9290e-a6d3-4b5a-8691-b4d0604fe5bd/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-58.i[916,929] [2023-12-02 12:41:34,603 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:41:34,615 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:41:34,628 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_66f9290e-a6d3-4b5a-8691-b4d0604fe5bd/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-58.i[916,929] [2023-12-02 12:41:34,655 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:41:34,672 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:41:34,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:34 WrapperNode [2023-12-02 12:41:34,673 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:41:34,674 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:41:34,674 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:41:34,674 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:41:34,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:34" (1/1) ... [2023-12-02 12:41:34,694 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:34" (1/1) ... [2023-12-02 12:41:34,730 INFO L138 Inliner]: procedures = 26, calls = 162, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 408 [2023-12-02 12:41:34,730 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:41:34,731 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:41:34,731 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:41:34,731 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:41:34,738 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:34" (1/1) ... [2023-12-02 12:41:34,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:34" (1/1) ... [2023-12-02 12:41:34,743 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:34" (1/1) ... [2023-12-02 12:41:34,744 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:34" (1/1) ... [2023-12-02 12:41:34,755 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:34" (1/1) ... [2023-12-02 12:41:34,759 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:34" (1/1) ... [2023-12-02 12:41:34,762 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:34" (1/1) ... [2023-12-02 12:41:34,766 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:34" (1/1) ... [2023-12-02 12:41:34,771 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:41:34,772 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:41:34,772 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:41:34,773 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:41:34,774 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:34" (1/1) ... [2023-12-02 12:41:34,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:41:34,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f9290e-a6d3-4b5a-8691-b4d0604fe5bd/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:41:34,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f9290e-a6d3-4b5a-8691-b4d0604fe5bd/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:41:34,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f9290e-a6d3-4b5a-8691-b4d0604fe5bd/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:41:34,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:41:34,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 12:41:34,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 12:41:34,834 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 12:41:34,835 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 12:41:34,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 12:41:34,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:41:34,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:41:34,982 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:41:34,984 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:41:35,374 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:41:35,803 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:41:35,804 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 12:41:35,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:41:35 BoogieIcfgContainer [2023-12-02 12:41:35,805 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:41:35,807 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:41:35,807 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:41:35,810 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:41:35,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:41:34" (1/3) ... [2023-12-02 12:41:35,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27b4bdd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:41:35, skipping insertion in model container [2023-12-02 12:41:35,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:41:34" (2/3) ... [2023-12-02 12:41:35,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27b4bdd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:41:35, skipping insertion in model container [2023-12-02 12:41:35,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:41:35" (3/3) ... [2023-12-02 12:41:35,813 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-58.i [2023-12-02 12:41:35,826 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:41:35,826 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 12:41:35,867 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:41:35,873 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;@437da386, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:41:35,873 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 12:41:35,876 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 12:41:35,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 12:41:35,884 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:41:35,884 INFO L195 NwaCegarLoop]: trace histogram [15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:41:35,885 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:41:35,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:41:35,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1935797764, now seen corresponding path program 1 times [2023-12-02 12:41:35,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:41:35,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247775993] [2023-12-02 12:41:35,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:41:35,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:41:36,077 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 12:41:36,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [584003453] [2023-12-02 12:41:36,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:41:36,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:41:36,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f9290e-a6d3-4b5a-8691-b4d0604fe5bd/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:41:36,079 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f9290e-a6d3-4b5a-8691-b4d0604fe5bd/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:41:36,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f9290e-a6d3-4b5a-8691-b4d0604fe5bd/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 12:49:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:49:20,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 193 conjunts are in the unsatisfiable core [2023-12-02 12:49:21,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:49:22,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:22,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:22,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:22,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:22,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2023-12-02 12:49:25,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:25,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:25,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:25,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:25,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:25,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 57 [2023-12-02 12:49:29,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:29,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:29,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:29,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:29,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:29,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:29,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 74 [2023-12-02 12:49:31,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:31,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:31,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:31,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:31,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:31,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:31,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:31,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 86 [2023-12-02 12:49:32,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:32,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:32,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:32,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:32,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:32,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:32,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 79 [2023-12-02 12:49:35,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:35,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:35,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:35,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:35,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:35,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:35,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:35,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 90 [2023-12-02 12:49:37,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:37,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:37,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:37,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:37,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:37,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:37,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:49:37,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 90 [2023-12-02 12:52:18,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:52:18,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:52:18,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:52:18,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:52:18,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:52:18,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:52:18,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:52:18,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:52:18,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:52:18,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:52:18,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:52:18,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:52:18,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:52:18,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 324 treesize of output 176 [2023-12-02 12:52:18,156 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 5 proven. 200 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 12:52:18,156 INFO L327 TraceCheckSpWp]: Computing backward predicates...