./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/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_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/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_4f8f9642-35c9-441e-9708-eab1f6ec437d/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 434b16a64b06ae36ef836c68b9042912d6cf793be5a1688bb3a25d59d1194c23 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:08:37,499 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:08:37,580 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:08:37,587 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:08:37,588 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:08:37,619 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:08:37,620 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:08:37,621 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:08:37,622 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:08:37,623 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:08:37,624 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:08:37,625 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:08:37,626 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:08:37,627 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:08:37,627 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:08:37,628 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:08:37,629 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:08:37,630 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:08:37,631 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:08:37,631 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:08:37,632 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:08:37,633 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:08:37,634 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:08:37,635 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:08:37,635 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:08:37,636 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:08:37,637 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:08:37,638 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:08:37,639 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:08:37,639 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:08:37,640 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:08:37,641 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:08:37,641 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:08:37,642 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:08:37,643 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:08:37,644 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:08:37,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:08:37,645 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:08:37,645 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:08:37,645 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:08:37,646 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:08:37,646 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:08:37,647 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_4f8f9642-35c9-441e-9708-eab1f6ec437d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 434b16a64b06ae36ef836c68b9042912d6cf793be5a1688bb3a25d59d1194c23 [2023-11-21 22:08:38,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:08:38,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:08:38,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:08:38,061 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:08:38,063 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:08:38,065 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i [2023-11-21 22:08:41,749 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:08:42,069 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:08:42,071 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i [2023-11-21 22:08:42,086 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/data/91142b087/2ba7d91df2054a708f3c8aa2248f99e9/FLAG74e13fe8f [2023-11-21 22:08:42,106 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/data/91142b087/2ba7d91df2054a708f3c8aa2248f99e9 [2023-11-21 22:08:42,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:08:42,119 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:08:42,122 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:08:42,122 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:08:42,129 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:08:42,130 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:08:42" (1/1) ... [2023-11-21 22:08:42,132 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c228087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:42, skipping insertion in model container [2023-11-21 22:08:42,132 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:08:42" (1/1) ... [2023-11-21 22:08:42,178 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:08:42,428 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_4f8f9642-35c9-441e-9708-eab1f6ec437d/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i[916,929] [2023-11-21 22:08:42,501 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:08:42,532 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:08:42,553 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_4f8f9642-35c9-441e-9708-eab1f6ec437d/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i[916,929] [2023-11-21 22:08:42,599 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:08:42,630 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:08:42,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:42 WrapperNode [2023-11-21 22:08:42,631 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:08:42,632 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:08:42,633 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:08:42,633 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:08:42,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:42" (1/1) ... [2023-11-21 22:08:42,666 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:42" (1/1) ... [2023-11-21 22:08:42,719 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 117 [2023-11-21 22:08:42,728 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:08:42,729 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:08:42,729 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:08:42,730 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:08:42,743 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:42" (1/1) ... [2023-11-21 22:08:42,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:42" (1/1) ... [2023-11-21 22:08:42,747 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:42" (1/1) ... [2023-11-21 22:08:42,764 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:08:42,776 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:42" (1/1) ... [2023-11-21 22:08:42,777 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:42" (1/1) ... [2023-11-21 22:08:42,784 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:42" (1/1) ... [2023-11-21 22:08:42,790 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:42" (1/1) ... [2023-11-21 22:08:42,806 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:42" (1/1) ... [2023-11-21 22:08:42,808 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:42" (1/1) ... [2023-11-21 22:08:42,812 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:08:42,813 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:08:42,813 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:08:42,814 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:08:42,815 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:42" (1/1) ... [2023-11-21 22:08:42,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:08:42,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:42,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:08:42,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:08:42,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:08:42,941 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:08:42,942 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:08:42,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:08:42,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:08:42,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:08:43,052 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:08:43,055 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:08:43,379 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:08:43,827 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:08:43,828 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:08:43,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:08:43 BoogieIcfgContainer [2023-11-21 22:08:43,830 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:08:43,833 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:08:43,834 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:08:43,838 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:08:43,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:08:42" (1/3) ... [2023-11-21 22:08:43,839 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@259eee7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:08:43, skipping insertion in model container [2023-11-21 22:08:43,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:42" (2/3) ... [2023-11-21 22:08:43,840 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@259eee7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:08:43, skipping insertion in model container [2023-11-21 22:08:43,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:08:43" (3/3) ... [2023-11-21 22:08:43,842 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-79.i [2023-11-21 22:08:43,866 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:08:43,867 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:08:43,948 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:08:43,966 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;@fe3e898, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:08:43,966 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:08:43,972 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-21 22:08:43,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-21 22:08:43,990 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:43,991 INFO L195 NwaCegarLoop]: trace histogram [14, 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 22:08:43,992 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:08:44,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:44,000 INFO L85 PathProgramCache]: Analyzing trace with hash -275620047, now seen corresponding path program 1 times [2023-11-21 22:08:44,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:44,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032002807] [2023-11-21 22:08:44,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:44,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:44,247 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:08:44,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1937022534] [2023-11-21 22:08:44,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:44,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:44,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:44,252 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:44,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:08:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:08:44,578 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:08:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:08:44,710 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:08:44,725 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:08:44,728 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:08:44,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:44,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-21 22:08:44,950 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:08:44,954 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:08:45,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:08:45 BoogieIcfgContainer [2023-11-21 22:08:45,051 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:08:45,052 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:08:45,052 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:08:45,053 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:08:45,053 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:08:43" (3/4) ... [2023-11-21 22:08:45,056 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:08:45,058 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:08:45,059 INFO L158 Benchmark]: Toolchain (without parser) took 2939.73ms. Allocated memory is still 178.3MB. Free memory was 134.2MB in the beginning and 107.2MB in the end (delta: 27.0MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2023-11-21 22:08:45,061 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 109.1MB. Free memory was 57.0MB in the beginning and 56.9MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:08:45,063 INFO L158 Benchmark]: CACSL2BoogieTranslator took 509.86ms. Allocated memory is still 178.3MB. Free memory was 134.2MB in the beginning and 122.2MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 22:08:45,065 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.92ms. Allocated memory is still 178.3MB. Free memory was 122.2MB in the beginning and 119.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:08:45,070 INFO L158 Benchmark]: Boogie Preprocessor took 83.12ms. Allocated memory is still 178.3MB. Free memory was 119.9MB in the beginning and 117.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:08:45,073 INFO L158 Benchmark]: RCFGBuilder took 1017.07ms. Allocated memory is still 178.3MB. Free memory was 117.4MB in the beginning and 137.9MB in the end (delta: -20.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-21 22:08:45,075 INFO L158 Benchmark]: TraceAbstraction took 1218.07ms. Allocated memory is still 178.3MB. Free memory was 137.3MB in the beginning and 107.9MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-21 22:08:45,075 INFO L158 Benchmark]: Witness Printer took 5.71ms. Allocated memory is still 178.3MB. Free memory was 107.9MB in the beginning and 107.2MB in the end (delta: 678.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:08:45,081 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 109.1MB. Free memory was 57.0MB in the beginning and 56.9MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 509.86ms. Allocated memory is still 178.3MB. Free memory was 134.2MB in the beginning and 122.2MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.92ms. Allocated memory is still 178.3MB. Free memory was 122.2MB in the beginning and 119.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.12ms. Allocated memory is still 178.3MB. Free memory was 119.9MB in the beginning and 117.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1017.07ms. Allocated memory is still 178.3MB. Free memory was 117.4MB in the beginning and 137.9MB in the end (delta: -20.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1218.07ms. Allocated memory is still 178.3MB. Free memory was 137.3MB in the beginning and 107.9MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 5.71ms. Allocated memory is still 178.3MB. Free memory was 107.9MB in the beginning and 107.2MB in the end (delta: 678.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of shiftRight at line 38. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -16; [L23] signed char var_1_3 = 0; [L24] signed char var_1_4 = 64; [L25] signed char var_1_5 = 64; [L26] signed long int var_1_6 = -64; [L27] signed long int var_1_8 = 32; [L28] signed long int var_1_9 = 1; [L29] unsigned short int var_1_10 = 32; [L30] signed long int var_1_11 = 15; [L31] unsigned char var_1_12 = 0; [L32] unsigned char var_1_13 = 0; [L33] unsigned short int last_1_var_1_10 = 32; [L95] isInitial = 1 [L96] FCALL initially() [L97] COND TRUE 1 [L98] CALL updateLastVariables() [L88] last_1_var_1_10 = var_1_10 [L98] RET updateLastVariables() [L99] CALL updateVariables() [L65] var_1_3 = __VERIFIER_nondet_char() [L66] CALL assume_abort_if_not(var_1_3 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_3 >= -63) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L67] CALL assume_abort_if_not(var_1_3 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_3 <= 63) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L68] var_1_4 = __VERIFIER_nondet_char() [L69] CALL assume_abort_if_not(var_1_4 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_4 >= -1) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L70] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L71] var_1_5 = __VERIFIER_nondet_char() [L72] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=0, var_1_6=-64, var_1_8=32, var_1_9=1] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=0, var_1_6=-64, var_1_8=32, var_1_9=1] [L73] CALL assume_abort_if_not(var_1_5 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=0, var_1_6=-64, var_1_8=32, var_1_9=1] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_5 <= 126) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=0, var_1_6=-64, var_1_8=32, var_1_9=1] [L74] var_1_8 = __VERIFIER_nondet_long() [L75] CALL assume_abort_if_not(var_1_8 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=1] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_8 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=1] [L76] CALL assume_abort_if_not(var_1_8 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=1] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_8 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=1] [L77] var_1_9 = __VERIFIER_nondet_long() [L78] CALL assume_abort_if_not(var_1_9 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_9 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L79] CALL assume_abort_if_not(var_1_9 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_9 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L80] var_1_11 = __VERIFIER_nondet_long() [L81] CALL assume_abort_if_not(var_1_11 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_11 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L82] CALL assume_abort_if_not(var_1_11 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_11 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L83] var_1_13 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L85] CALL assume_abort_if_not(var_1_13 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_13 <= 0) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L99] RET updateVariables() [L100] CALL step() [L37] signed long int stepLocal_0 = (((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10)); [L38] EXPR last_1_var_1_10 >> var_1_3 [L38] COND TRUE stepLocal_0 <= (var_1_4 * (last_1_var_1_10 >> var_1_3)) [L39] COND TRUE (- var_1_8) >= var_1_9 [L40] var_1_6 = var_1_4 [L47] signed long int stepLocal_1 = var_1_5 + var_1_6; [L48] COND FALSE !(var_1_11 < var_1_9) [L55] var_1_12 = var_1_13 [L56] COND TRUE ! var_1_12 [L57] COND TRUE ! var_1_12 [L58] var_1_1 = (var_1_3 + -32) [L100] RET step() [L101] CALL, EXPR property() [L91] EXPR ((! var_1_12) ? ((! var_1_12) ? (var_1_1 == ((signed char) (var_1_3 + -32))) : (var_1_1 == ((signed char) (var_1_4 - ((((var_1_5) < (16)) ? (var_1_5) : (16))))))) : 1) && ((((((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10))) <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) ? (((- var_1_8) >= var_1_9) ? (var_1_6 == ((signed long int) var_1_4)) : (var_1_6 == ((signed long int) var_1_5))) : (var_1_6 == ((signed long int) var_1_5))) [L91] EXPR last_1_var_1_10 >> var_1_3 [L91] EXPR ((! var_1_12) ? ((! var_1_12) ? (var_1_1 == ((signed char) (var_1_3 + -32))) : (var_1_1 == ((signed char) (var_1_4 - ((((var_1_5) < (16)) ? (var_1_5) : (16))))))) : 1) && ((((((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10))) <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) ? (((- var_1_8) >= var_1_9) ? (var_1_6 == ((signed long int) var_1_4)) : (var_1_6 == ((signed long int) var_1_5))) : (var_1_6 == ((signed long int) var_1_5))) [L91-L92] return ((((! var_1_12) ? ((! var_1_12) ? (var_1_1 == ((signed char) (var_1_3 + -32))) : (var_1_1 == ((signed char) (var_1_4 - ((((var_1_5) < (16)) ? (var_1_5) : (16))))))) : 1) && ((((((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10))) <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) ? (((- var_1_8) >= var_1_9) ? (var_1_6 == ((signed long int) var_1_4)) : (var_1_6 == ((signed long int) var_1_5))) : (var_1_6 == ((signed long int) var_1_5)))) && ((var_1_11 < var_1_9) ? (((var_1_5 + var_1_6) <= (~ (var_1_6 % -32))) ? (var_1_10 == ((unsigned short int) var_1_5)) : (var_1_10 == ((unsigned short int) var_1_5))) : 1)) && (var_1_12 == ((unsigned char) var_1_13)) ; [L101] RET, EXPR property() [L101] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=0, var_1_3=32, var_1_4=2, var_1_5=0, var_1_6=2, var_1_8=-2147483648, var_1_9=-2147483648] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=0, var_1_3=32, var_1_4=2, var_1_5=0, var_1_6=2, var_1_8=-2147483648, var_1_9=-2147483648] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 22:08:45,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/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_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/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 434b16a64b06ae36ef836c68b9042912d6cf793be5a1688bb3a25d59d1194c23 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:08:48,418 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:08:48,551 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-21 22:08:48,560 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:08:48,561 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:08:48,601 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:08:48,605 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:08:48,605 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:08:48,606 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:08:48,612 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:08:48,612 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:08:48,613 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:08:48,614 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:08:48,616 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:08:48,616 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:08:48,617 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:08:48,618 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:08:48,618 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:08:48,618 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:08:48,620 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:08:48,620 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:08:48,621 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:08:48,621 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:08:48,622 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:08:48,622 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:08:48,622 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:08:48,623 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:08:48,623 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:08:48,624 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:08:48,624 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:08:48,626 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:08:48,626 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:08:48,627 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:08:48,627 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:08:48,627 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:08:48,627 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:08:48,628 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:08:48,629 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:08:48,629 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:08:48,629 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:08:48,630 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:08:48,630 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:08:48,630 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:08:48,631 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:08:48,631 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:08:48,631 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_4f8f9642-35c9-441e-9708-eab1f6ec437d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 434b16a64b06ae36ef836c68b9042912d6cf793be5a1688bb3a25d59d1194c23 [2023-11-21 22:08:49,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:08:49,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:08:49,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:08:49,076 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:08:49,080 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:08:49,083 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i [2023-11-21 22:08:52,502 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:08:52,815 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:08:52,816 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i [2023-11-21 22:08:52,827 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/data/e4aa2ea4b/925dfd1bea31409096a8ff7757de6a22/FLAG6feab5049 [2023-11-21 22:08:52,848 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/data/e4aa2ea4b/925dfd1bea31409096a8ff7757de6a22 [2023-11-21 22:08:52,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:08:52,860 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:08:52,865 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:08:52,866 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:08:52,872 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:08:52,873 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:08:52" (1/1) ... [2023-11-21 22:08:52,874 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@451a5f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:52, skipping insertion in model container [2023-11-21 22:08:52,875 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:08:52" (1/1) ... [2023-11-21 22:08:52,921 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:08:53,135 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_4f8f9642-35c9-441e-9708-eab1f6ec437d/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i[916,929] [2023-11-21 22:08:53,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:08:53,199 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:08:53,225 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_4f8f9642-35c9-441e-9708-eab1f6ec437d/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i[916,929] [2023-11-21 22:08:53,273 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:08:53,307 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:08:53,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:53 WrapperNode [2023-11-21 22:08:53,308 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:08:53,309 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:08:53,309 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:08:53,310 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:08:53,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:53" (1/1) ... [2023-11-21 22:08:53,347 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:53" (1/1) ... [2023-11-21 22:08:53,393 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 98 [2023-11-21 22:08:53,395 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:08:53,397 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:08:53,397 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:08:53,397 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:08:53,410 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:53" (1/1) ... [2023-11-21 22:08:53,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:53" (1/1) ... [2023-11-21 22:08:53,424 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:53" (1/1) ... [2023-11-21 22:08:53,450 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:08:53,453 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:53" (1/1) ... [2023-11-21 22:08:53,453 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:53" (1/1) ... [2023-11-21 22:08:53,469 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:53" (1/1) ... [2023-11-21 22:08:53,478 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:53" (1/1) ... [2023-11-21 22:08:53,481 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:53" (1/1) ... [2023-11-21 22:08:53,489 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:53" (1/1) ... [2023-11-21 22:08:53,494 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:08:53,501 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:08:53,502 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:08:53,503 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:08:53,504 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:53" (1/1) ... [2023-11-21 22:08:53,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:08:53,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:53,542 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:08:53,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:08:53,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:08:53,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 22:08:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:08:53,589 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:08:53,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:08:53,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:08:53,738 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:08:53,741 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:08:54,158 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:08:54,386 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:08:54,387 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:08:54,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:08:54 BoogieIcfgContainer [2023-11-21 22:08:54,389 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:08:54,392 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:08:54,392 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:08:54,396 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:08:54,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:08:52" (1/3) ... [2023-11-21 22:08:54,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1111b826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:08:54, skipping insertion in model container [2023-11-21 22:08:54,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:53" (2/3) ... [2023-11-21 22:08:54,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1111b826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:08:54, skipping insertion in model container [2023-11-21 22:08:54,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:08:54" (3/3) ... [2023-11-21 22:08:54,400 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-79.i [2023-11-21 22:08:54,423 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:08:54,423 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:08:54,479 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:08:54,487 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;@5af2b8a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:08:54,487 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:08:54,492 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-21 22:08:54,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-21 22:08:54,505 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:54,506 INFO L195 NwaCegarLoop]: trace histogram [14, 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 22:08:54,507 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:08:54,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:54,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1222304339, now seen corresponding path program 1 times [2023-11-21 22:08:54,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:08:54,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802234808] [2023-11-21 22:08:54,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:54,531 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:08:54,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:08:54,533 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 22:08:54,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f8f9642-35c9-441e-9708-eab1f6ec437d/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-21 22:08:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:54,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-21 22:08:54,820 INFO L285 TraceCheckSpWp]: Computing forward predicates...