./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-33.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_fc912e57-e7fd-43ca-a8dd-7ad2596d441c/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc912e57-e7fd-43ca-a8dd-7ad2596d441c/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc912e57-e7fd-43ca-a8dd-7ad2596d441c/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc912e57-e7fd-43ca-a8dd-7ad2596d441c/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-33.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc912e57-e7fd-43ca-a8dd-7ad2596d441c/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc912e57-e7fd-43ca-a8dd-7ad2596d441c/bin/uautomizer-verify-bycVGegfSx --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 080e73bd39fdb1dc0e00d76851964cdfbb781f192a94053a1ebc2f3cc0138cad --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:20:11,035 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:20:11,128 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc912e57-e7fd-43ca-a8dd-7ad2596d441c/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:20:11,134 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:20:11,136 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:20:11,176 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:20:11,178 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:20:11,179 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:20:11,180 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:20:11,185 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:20:11,186 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:20:11,187 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:20:11,188 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:20:11,190 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:20:11,191 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:20:11,191 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:20:11,192 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:20:11,192 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:20:11,193 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:20:11,194 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:20:11,194 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:20:11,195 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:20:11,195 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:20:11,196 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:20:11,196 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:20:11,197 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:20:11,197 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:20:11,198 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:20:11,199 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:20:11,199 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:20:11,201 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:20:11,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:20:11,202 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:20:11,202 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:20:11,202 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:20:11,203 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:20:11,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:20:11,204 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:20:11,204 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:20:11,204 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:20:11,205 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:20:11,205 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:20:11,206 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_fc912e57-e7fd-43ca-a8dd-7ad2596d441c/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc912e57-e7fd-43ca-a8dd-7ad2596d441c/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 080e73bd39fdb1dc0e00d76851964cdfbb781f192a94053a1ebc2f3cc0138cad [2023-11-21 22:20:11,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:20:11,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:20:11,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:20:11,558 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:20:11,558 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:20:11,560 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc912e57-e7fd-43ca-a8dd-7ad2596d441c/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-33.i [2023-11-21 22:20:14,779 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:20:15,001 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:20:15,002 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc912e57-e7fd-43ca-a8dd-7ad2596d441c/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-33.i [2023-11-21 22:20:15,012 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc912e57-e7fd-43ca-a8dd-7ad2596d441c/bin/uautomizer-verify-bycVGegfSx/data/e91420150/d798c9a58c9a47d6b4647f9ed3ca92bf/FLAGa3bbb0e8b [2023-11-21 22:20:15,034 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc912e57-e7fd-43ca-a8dd-7ad2596d441c/bin/uautomizer-verify-bycVGegfSx/data/e91420150/d798c9a58c9a47d6b4647f9ed3ca92bf [2023-11-21 22:20:15,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:20:15,042 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:20:15,044 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:20:15,045 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:20:15,051 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:20:15,052 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:20:15" (1/1) ... [2023-11-21 22:20:15,053 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d939310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:15, skipping insertion in model container [2023-11-21 22:20:15,053 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:20:15" (1/1) ... [2023-11-21 22:20:15,089 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:20:15,265 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_fc912e57-e7fd-43ca-a8dd-7ad2596d441c/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-33.i[919,932] [2023-11-21 22:20:15,326 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:20:15,348 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:20:15,363 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_fc912e57-e7fd-43ca-a8dd-7ad2596d441c/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-33.i[919,932] [2023-11-21 22:20:15,398 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:20:15,420 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:20:15,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:15 WrapperNode [2023-11-21 22:20:15,421 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:20:15,423 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:20:15,423 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:20:15,423 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:20:15,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:15" (1/1) ... [2023-11-21 22:20:15,445 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:15" (1/1) ... [2023-11-21 22:20:15,496 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 146 [2023-11-21 22:20:15,497 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:20:15,497 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:20:15,498 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:20:15,498 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:20:15,512 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:15" (1/1) ... [2023-11-21 22:20:15,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:15" (1/1) ... [2023-11-21 22:20:15,516 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:15" (1/1) ... [2023-11-21 22:20:15,541 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:20:15,542 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:15" (1/1) ... [2023-11-21 22:20:15,542 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:15" (1/1) ... [2023-11-21 22:20:15,555 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:15" (1/1) ... [2023-11-21 22:20:15,576 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:15" (1/1) ... [2023-11-21 22:20:15,578 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:15" (1/1) ... [2023-11-21 22:20:15,594 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:15" (1/1) ... [2023-11-21 22:20:15,599 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:20:15,600 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:20:15,600 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:20:15,600 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:20:15,601 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:15" (1/1) ... [2023-11-21 22:20:15,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:20:15,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc912e57-e7fd-43ca-a8dd-7ad2596d441c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:15,643 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc912e57-e7fd-43ca-a8dd-7ad2596d441c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:20:15,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc912e57-e7fd-43ca-a8dd-7ad2596d441c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:20:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:20:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:20:15,704 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:20:15,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:20:15,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:20:15,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:20:15,862 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:20:15,867 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:20:16,339 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:20:16,816 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:20:16,817 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:20:16,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:16 BoogieIcfgContainer [2023-11-21 22:20:16,820 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:20:16,824 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:20:16,825 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:20:16,829 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:20:16,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:20:15" (1/3) ... [2023-11-21 22:20:16,830 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@525eba89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:20:16, skipping insertion in model container [2023-11-21 22:20:16,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:15" (2/3) ... [2023-11-21 22:20:16,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@525eba89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:20:16, skipping insertion in model container [2023-11-21 22:20:16,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:16" (3/3) ... [2023-11-21 22:20:16,836 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-33.i [2023-11-21 22:20:16,864 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:20:16,865 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:20:16,955 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:20:16,965 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=PETRI_NET, 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;@26b1914d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:20:16,966 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:20:16,971 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-21 22:20:16,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-21 22:20:16,982 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:16,983 INFO L195 NwaCegarLoop]: trace histogram [18, 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] [2023-11-21 22:20:16,984 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:20:16,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:16,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1619171210, now seen corresponding path program 1 times [2023-11-21 22:20:17,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:17,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761022394] [2023-11-21 22:20:17,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:17,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:17,229 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:20:17,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [385437125] [2023-11-21 22:20:17,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:17,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:20:17,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc912e57-e7fd-43ca-a8dd-7ad2596d441c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:17,233 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc912e57-e7fd-43ca-a8dd-7ad2596d441c/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:20:17,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc912e57-e7fd-43ca-a8dd-7ad2596d441c/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:20:17,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:17,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 42 conjunts are in the unsatisfiable core [2023-11-21 22:20:17,531 INFO L285 TraceCheckSpWp]: Computing forward predicates...