./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-acceleration/array_2-2-simple.i --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6908dde5 Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-acceleration/array_2-2-simple.i -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --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 c189c1cb91ea61745da6126e2d9c114f6ae511079741dc75bc227de256009336 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-6908dde-m [2024-09-24 22:58:50,263 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-24 22:58:50,334 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-24 22:58:50,340 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-24 22:58:50,341 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-24 22:58:50,370 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-24 22:58:50,372 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-24 22:58:50,372 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-24 22:58:50,373 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-24 22:58:50,374 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-24 22:58:50,375 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-24 22:58:50,375 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-24 22:58:50,376 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-24 22:58:50,376 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-24 22:58:50,378 INFO L153 SettingsManager]: * Use SBE=true [2024-09-24 22:58:50,378 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-24 22:58:50,379 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-24 22:58:50,379 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-24 22:58:50,379 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-24 22:58:50,379 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-24 22:58:50,380 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-24 22:58:50,382 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-24 22:58:50,382 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-24 22:58:50,383 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-24 22:58:50,383 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-24 22:58:50,383 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-24 22:58:50,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-24 22:58:50,383 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-24 22:58:50,384 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-24 22:58:50,384 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-24 22:58:50,384 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-24 22:58:50,384 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-24 22:58:50,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-24 22:58:50,385 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-24 22:58:50,385 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-24 22:58:50,387 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-24 22:58:50,387 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-24 22:58:50,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-24 22:58:50,388 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-24 22:58:50,388 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-24 22:58:50,388 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-24 22:58:50,388 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-24 22:58:50,389 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:/storage/repos/certificate-witnesses-artifact/automizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c189c1cb91ea61745da6126e2d9c114f6ae511079741dc75bc227de256009336 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false [2024-09-24 22:58:50,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-24 22:58:50,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-24 22:58:50,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-24 22:58:50,715 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-24 22:58:50,715 INFO L274 PluginConnector]: CDTParser initialized [2024-09-24 22:58:50,716 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-acceleration/array_2-2-simple.i [2024-09-24 22:58:52,144 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-24 22:58:52,321 INFO L384 CDTParser]: Found 1 translation units. [2024-09-24 22:58:52,322 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/array_2-2-simple.i [2024-09-24 22:58:52,329 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/b941a25b9/2a368b8d1e8046cc95a7045b18c952b3/FLAG5f6bd4197 [2024-09-24 22:58:52,709 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/b941a25b9/2a368b8d1e8046cc95a7045b18c952b3 [2024-09-24 22:58:52,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-24 22:58:52,713 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-24 22:58:52,714 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-24 22:58:52,714 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-24 22:58:52,719 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-24 22:58:52,720 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:58:52" (1/1) ... [2024-09-24 22:58:52,721 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7538fa98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:52, skipping insertion in model container [2024-09-24 22:58:52,721 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:58:52" (1/1) ... [2024-09-24 22:58:52,737 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-24 22:58:52,924 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/array_2-2-simple.i[809,822] [2024-09-24 22:58:52,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-24 22:58:52,956 INFO L200 MainTranslator]: Completed pre-run [2024-09-24 22:58:52,968 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/array_2-2-simple.i[809,822] [2024-09-24 22:58:52,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-24 22:58:52,997 INFO L204 MainTranslator]: Completed translation [2024-09-24 22:58:52,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:52 WrapperNode [2024-09-24 22:58:52,998 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-24 22:58:52,999 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-24 22:58:52,999 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-24 22:58:53,000 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-24 22:58:53,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:52" (1/1) ... [2024-09-24 22:58:53,015 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:52" (1/1) ... [2024-09-24 22:58:53,021 INFO L138 Inliner]: procedures = 16, calls = 17, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-24 22:58:53,021 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-24 22:58:53,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-24 22:58:53,022 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-24 22:58:53,022 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-24 22:58:53,031 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:52" (1/1) ... [2024-09-24 22:58:53,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:52" (1/1) ... [2024-09-24 22:58:53,034 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:52" (1/1) ... [2024-09-24 22:58:53,054 INFO L175 MemorySlicer]: Split 10 memory accesses to 3 slices as follows [2, 4, 4]. 40 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 5 writes are split as follows [0, 3, 2]. [2024-09-24 22:58:53,055 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:52" (1/1) ... [2024-09-24 22:58:53,055 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:52" (1/1) ... [2024-09-24 22:58:53,060 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:52" (1/1) ... [2024-09-24 22:58:53,063 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:52" (1/1) ... [2024-09-24 22:58:53,068 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:52" (1/1) ... [2024-09-24 22:58:53,069 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:52" (1/1) ... [2024-09-24 22:58:53,070 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-24 22:58:53,073 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-24 22:58:53,073 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-24 22:58:53,074 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-24 22:58:53,075 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:52" (1/1) ... [2024-09-24 22:58:53,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-24 22:58:53,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-24 22:58:53,113 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-24 22:58:53,115 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-24 22:58:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-24 22:58:53,164 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-24 22:58:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-24 22:58:53,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-24 22:58:53,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-09-24 22:58:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-09-24 22:58:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-09-24 22:58:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-09-24 22:58:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-09-24 22:58:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-09-24 22:58:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-24 22:58:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-09-24 22:58:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-09-24 22:58:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-24 22:58:53,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-24 22:58:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-24 22:58:53,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-24 22:58:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-24 22:58:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-09-24 22:58:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-09-24 22:58:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-24 22:58:53,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-24 22:58:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-24 22:58:53,253 INFO L241 CfgBuilder]: Building ICFG [2024-09-24 22:58:53,255 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-24 22:58:53,365 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-09-24 22:58:53,365 INFO L290 CfgBuilder]: Performing block encoding [2024-09-24 22:58:53,384 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-24 22:58:53,385 INFO L317 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-24 22:58:53,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:58:53 BoogieIcfgContainer [2024-09-24 22:58:53,387 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-24 22:58:53,389 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-24 22:58:53,389 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-24 22:58:53,396 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-24 22:58:53,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:58:52" (1/3) ... [2024-09-24 22:58:53,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13317e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:58:53, skipping insertion in model container [2024-09-24 22:58:53,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:52" (2/3) ... [2024-09-24 22:58:53,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13317e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:58:53, skipping insertion in model container [2024-09-24 22:58:53,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:58:53" (3/3) ... [2024-09-24 22:58:53,400 INFO L112 eAbstractionObserver]: Analyzing ICFG array_2-2-simple.i [2024-09-24 22:58:53,419 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-24 22:58:53,419 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-24 22:58:53,488 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-24 22:58:53,496 INFO L336 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@22bd6aa2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 22:58:53,496 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-24 22:58:53,500 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-24 22:58:53,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-09-24 22:58:53,507 INFO L208 NwaCegarLoop]: Found error trace [2024-09-24 22:58:53,508 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-24 22:58:53,509 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-24 22:58:53,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 22:58:53,514 INFO L85 PathProgramCache]: Analyzing trace with hash -263571753, now seen corresponding path program 1 times [2024-09-24 22:58:53,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 22:58:53,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391849105] [2024-09-24 22:58:53,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 22:58:53,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 22:58:53,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 22:58:53,752 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-24 22:58:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 22:58:53,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 22:58:53,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 22:58:53,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391849105] [2024-09-24 22:58:53,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391849105] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 22:58:53,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 22:58:53,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 22:58:53,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30210107] [2024-09-24 22:58:53,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 22:58:53,774 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 22:58:53,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 22:58:53,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 22:58:53,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 22:58:53,798 INFO L87 Difference]: Start difference. First operand has 18 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-24 22:58:53,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-24 22:58:53,825 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2024-09-24 22:58:53,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 22:58:53,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-09-24 22:58:53,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-24 22:58:53,835 INFO L225 Difference]: With dead ends: 31 [2024-09-24 22:58:53,836 INFO L226 Difference]: Without dead ends: 13 [2024-09-24 22:58:53,838 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 22:58:53,842 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-24 22:58:53,845 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-24 22:58:53,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-09-24 22:58:53,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-09-24 22:58:53,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-24 22:58:53,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2024-09-24 22:58:53,890 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2024-09-24 22:58:53,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-24 22:58:53,890 INFO L474 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2024-09-24 22:58:53,890 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-24 22:58:53,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 22:58:53,891 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2024-09-24 22:58:53,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-09-24 22:58:53,891 INFO L208 NwaCegarLoop]: Found error trace [2024-09-24 22:58:53,891 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-24 22:58:53,892 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-24 22:58:53,892 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-24 22:58:53,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 22:58:53,892 INFO L85 PathProgramCache]: Analyzing trace with hash 282385487, now seen corresponding path program 1 times [2024-09-24 22:58:53,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 22:58:53,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299729424] [2024-09-24 22:58:53,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 22:58:53,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 22:58:53,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 22:58:54,023 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-24 22:58:54,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 22:58:54,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 22:58:54,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 22:58:54,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299729424] [2024-09-24 22:58:54,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299729424] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 22:58:54,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678069287] [2024-09-24 22:58:54,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 22:58:54,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 22:58:54,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-24 22:58:54,038 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 22:58:54,040 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-24 22:58:54,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 22:58:54,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-24 22:58:54,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 22:58:54,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 22:58:54,164 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 22:58:54,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 22:58:54,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678069287] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 22:58:54,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 22:58:54,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-09-24 22:58:54,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650145496] [2024-09-24 22:58:54,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 22:58:54,203 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-24 22:58:54,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 22:58:54,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-24 22:58:54,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-24 22:58:54,205 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-24 22:58:54,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-24 22:58:54,233 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2024-09-24 22:58:54,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 22:58:54,235 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-09-24 22:58:54,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-24 22:58:54,237 INFO L225 Difference]: With dead ends: 22 [2024-09-24 22:58:54,237 INFO L226 Difference]: Without dead ends: 16 [2024-09-24 22:58:54,237 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-24 22:58:54,238 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-24 22:58:54,239 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-24 22:58:54,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-09-24 22:58:54,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-09-24 22:58:54,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-24 22:58:54,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2024-09-24 22:58:54,246 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 12 [2024-09-24 22:58:54,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-24 22:58:54,248 INFO L474 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2024-09-24 22:58:54,248 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-24 22:58:54,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 22:58:54,249 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2024-09-24 22:58:54,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-09-24 22:58:54,249 INFO L208 NwaCegarLoop]: Found error trace [2024-09-24 22:58:54,249 INFO L216 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-24 22:58:54,264 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-24 22:58:54,450 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 22:58:54,451 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-24 22:58:54,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 22:58:54,452 INFO L85 PathProgramCache]: Analyzing trace with hash 277075159, now seen corresponding path program 2 times [2024-09-24 22:58:54,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 22:58:54,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154402354] [2024-09-24 22:58:54,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 22:58:54,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 22:58:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 22:58:54,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-24 22:58:54,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 22:58:54,645 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 22:58:54,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 22:58:54,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154402354] [2024-09-24 22:58:54,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154402354] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 22:58:54,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587559365] [2024-09-24 22:58:54,646 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-24 22:58:54,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 22:58:54,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-24 22:58:54,651 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 22:58:54,653 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-24 22:58:54,734 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-24 22:58:54,735 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-24 22:58:54,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-24 22:58:54,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 22:58:54,767 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 22:58:54,771 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 22:58:54,848 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 22:58:54,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587559365] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 22:58:54,849 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 22:58:54,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-09-24 22:58:54,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606364041] [2024-09-24 22:58:54,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 22:58:54,850 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-24 22:58:54,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 22:58:54,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-24 22:58:54,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-09-24 22:58:54,852 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-24 22:58:54,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-24 22:58:54,877 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2024-09-24 22:58:54,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-24 22:58:54,878 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-09-24 22:58:54,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-24 22:58:54,878 INFO L225 Difference]: With dead ends: 28 [2024-09-24 22:58:54,878 INFO L226 Difference]: Without dead ends: 22 [2024-09-24 22:58:54,879 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-09-24 22:58:54,880 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-24 22:58:54,880 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-24 22:58:54,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-09-24 22:58:54,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-09-24 22:58:54,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-24 22:58:54,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2024-09-24 22:58:54,885 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 15 [2024-09-24 22:58:54,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-24 22:58:54,885 INFO L474 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2024-09-24 22:58:54,886 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-24 22:58:54,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 22:58:54,886 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2024-09-24 22:58:54,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-24 22:58:54,887 INFO L208 NwaCegarLoop]: Found error trace [2024-09-24 22:58:54,887 INFO L216 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-24 22:58:54,904 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-24 22:58:55,087 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 22:58:55,088 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-24 22:58:55,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 22:58:55,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1676943831, now seen corresponding path program 3 times [2024-09-24 22:58:55,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 22:58:55,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703507290] [2024-09-24 22:58:55,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 22:58:55,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 22:58:55,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 22:58:55,366 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-24 22:58:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 22:58:55,372 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 22:58:55,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 22:58:55,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703507290] [2024-09-24 22:58:55,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703507290] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 22:58:55,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754332244] [2024-09-24 22:58:55,375 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-24 22:58:55,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 22:58:55,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-24 22:58:55,377 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 22:58:55,378 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-24 22:58:55,467 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-09-24 22:58:55,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-24 22:58:55,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-24 22:58:55,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 22:58:55,509 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 22:58:55,510 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 22:58:55,751 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 22:58:55,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754332244] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 22:58:55,752 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 22:58:55,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2024-09-24 22:58:55,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328594927] [2024-09-24 22:58:55,752 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 22:58:55,752 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-24 22:58:55,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 22:58:55,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-24 22:58:55,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-09-24 22:58:55,754 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 25 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-24 22:58:55,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-24 22:58:55,795 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2024-09-24 22:58:55,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-24 22:58:55,796 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-09-24 22:58:55,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-24 22:58:55,797 INFO L225 Difference]: With dead ends: 40 [2024-09-24 22:58:55,798 INFO L226 Difference]: Without dead ends: 34 [2024-09-24 22:58:55,799 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-09-24 22:58:55,799 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-24 22:58:55,801 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-24 22:58:55,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-09-24 22:58:55,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-09-24 22:58:55,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 29 states have internal predecessors, (30), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-24 22:58:55,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2024-09-24 22:58:55,811 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 21 [2024-09-24 22:58:55,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-24 22:58:55,811 INFO L474 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2024-09-24 22:58:55,811 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-24 22:58:55,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 22:58:55,812 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2024-09-24 22:58:55,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-09-24 22:58:55,813 INFO L208 NwaCegarLoop]: Found error trace [2024-09-24 22:58:55,813 INFO L216 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-24 22:58:55,829 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-24 22:58:56,017 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 22:58:56,018 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-24 22:58:56,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 22:58:56,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1214546985, now seen corresponding path program 4 times [2024-09-24 22:58:56,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 22:58:56,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306920718] [2024-09-24 22:58:56,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 22:58:56,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 22:58:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 22:58:56,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-24 22:58:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 22:58:56,658 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 22:58:56,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 22:58:56,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306920718] [2024-09-24 22:58:56,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306920718] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 22:58:56,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416694255] [2024-09-24 22:58:56,658 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-24 22:58:56,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 22:58:56,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-24 22:58:56,660 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 22:58:56,661 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-24 22:58:56,754 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-24 22:58:56,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-24 22:58:56,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-24 22:58:56,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 22:58:56,825 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 22:58:56,826 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 22:58:57,641 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 22:58:57,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416694255] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 22:58:57,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 22:58:57,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2024-09-24 22:58:57,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714948359] [2024-09-24 22:58:57,643 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 22:58:57,643 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-09-24 22:58:57,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 22:58:57,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-09-24 22:58:57,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2024-09-24 22:58:57,646 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand has 49 states, 49 states have (on average 1.1224489795918366) internal successors, (55), 49 states have internal predecessors, (55), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-24 22:58:57,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-24 22:58:57,724 INFO L93 Difference]: Finished difference Result 64 states and 87 transitions. [2024-09-24 22:58:57,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-09-24 22:58:57,726 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 1.1224489795918366) internal successors, (55), 49 states have internal predecessors, (55), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2024-09-24 22:58:57,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-24 22:58:57,727 INFO L225 Difference]: With dead ends: 64 [2024-09-24 22:58:57,727 INFO L226 Difference]: Without dead ends: 58 [2024-09-24 22:58:57,728 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2024-09-24 22:58:57,729 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-24 22:58:57,729 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-24 22:58:57,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-09-24 22:58:57,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-09-24 22:58:57,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 53 states have (on average 1.0188679245283019) internal successors, (54), 53 states have internal predecessors, (54), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-24 22:58:57,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2024-09-24 22:58:57,740 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 33 [2024-09-24 22:58:57,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-24 22:58:57,740 INFO L474 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2024-09-24 22:58:57,740 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 1.1224489795918366) internal successors, (55), 49 states have internal predecessors, (55), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-24 22:58:57,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 22:58:57,741 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2024-09-24 22:58:57,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-09-24 22:58:57,742 INFO L208 NwaCegarLoop]: Found error trace [2024-09-24 22:58:57,742 INFO L216 NwaCegarLoop]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-24 22:58:57,760 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-24 22:58:57,943 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 22:58:57,944 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-24 22:58:57,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 22:58:57,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1657090007, now seen corresponding path program 5 times [2024-09-24 22:58:57,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 22:58:57,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698320408] [2024-09-24 22:58:57,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 22:58:57,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 22:58:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 22:58:59,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-24 22:58:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 22:58:59,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 22:58:59,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 22:58:59,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698320408] [2024-09-24 22:58:59,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698320408] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 22:58:59,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672438318] [2024-09-24 22:58:59,602 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-24 22:58:59,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 22:58:59,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-24 22:58:59,607 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 22:58:59,611 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-24 22:59:08,446 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2024-09-24 22:59:08,447 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-24 22:59:08,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-09-24 22:59:08,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 22:59:08,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 22:59:08,579 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 22:59:11,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 22:59:11,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672438318] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 22:59:11,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 22:59:11,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 97 [2024-09-24 22:59:11,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219227290] [2024-09-24 22:59:11,125 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 22:59:11,126 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2024-09-24 22:59:11,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 22:59:11,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2024-09-24 22:59:11,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2024-09-24 22:59:11,132 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand has 97 states, 97 states have (on average 1.0618556701030928) internal successors, (103), 97 states have internal predecessors, (103), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-24 22:59:11,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-24 22:59:11,281 INFO L93 Difference]: Finished difference Result 112 states and 159 transitions. [2024-09-24 22:59:11,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-09-24 22:59:11,284 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 1.0618556701030928) internal successors, (103), 97 states have internal predecessors, (103), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2024-09-24 22:59:11,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-24 22:59:11,286 INFO L225 Difference]: With dead ends: 112 [2024-09-24 22:59:11,287 INFO L226 Difference]: Without dead ends: 106 [2024-09-24 22:59:11,290 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2024-09-24 22:59:11,291 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-24 22:59:11,292 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-24 22:59:11,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-09-24 22:59:11,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-09-24 22:59:11,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 101 states have (on average 1.00990099009901) internal successors, (102), 101 states have internal predecessors, (102), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-24 22:59:11,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2024-09-24 22:59:11,309 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 57 [2024-09-24 22:59:11,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-24 22:59:11,309 INFO L474 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2024-09-24 22:59:11,309 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 1.0618556701030928) internal successors, (103), 97 states have internal predecessors, (103), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-24 22:59:11,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 22:59:11,310 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2024-09-24 22:59:11,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-09-24 22:59:11,316 INFO L208 NwaCegarLoop]: Found error trace [2024-09-24 22:59:11,316 INFO L216 NwaCegarLoop]: trace histogram [94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-24 22:59:11,349 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-24 22:59:11,516 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-24 22:59:11,517 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-24 22:59:11,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 22:59:11,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1854183383, now seen corresponding path program 6 times [2024-09-24 22:59:11,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 22:59:11,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007961191] [2024-09-24 22:59:11,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 22:59:11,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 22:59:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 22:59:16,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-24 22:59:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 22:59:16,436 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 22:59:16,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 22:59:16,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007961191] [2024-09-24 22:59:16,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007961191] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 22:59:16,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908686031] [2024-09-24 22:59:16,436 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-24 22:59:16,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 22:59:16,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-24 22:59:16,438 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 22:59:16,439 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process