./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-93_fixed.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-93_fixed.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ddec760117dfe95addb3119868a1a4b9235e79a721f69484238bafe264cc3b9f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:32:24,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:32:25,072 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:32:25,080 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:32:25,081 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:32:25,121 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:32:25,122 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:32:25,122 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:32:25,124 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:32:25,129 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:32:25,129 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:32:25,130 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:32:25,130 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:32:25,132 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:32:25,133 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:32:25,133 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:32:25,134 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:32:25,134 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:32:25,135 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:32:25,135 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:32:25,136 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:32:25,136 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:32:25,138 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:32:25,138 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:32:25,139 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:32:25,139 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:32:25,140 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:32:25,140 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:32:25,141 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:32:25,141 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:32:25,143 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:32:25,143 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:32:25,143 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:32:25,144 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:32:25,144 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:32:25,144 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:32:25,145 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:32:25,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:32:25,146 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:32:25,146 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:32:25,146 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:32:25,147 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:32:25,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:32:25,147 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:32:25,148 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:32:25,148 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:32:25,149 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:32:25,149 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ddec760117dfe95addb3119868a1a4b9235e79a721f69484238bafe264cc3b9f [2023-11-23 20:32:25,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:32:25,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:32:25,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:32:25,532 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:32:25,532 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:32:25,534 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-93_fixed.i [2023-11-23 20:32:28,543 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:32:28,784 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:32:28,785 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-93_fixed.i [2023-11-23 20:32:28,794 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/data/3b474720a/3cac6c0d3f3843909586acf4e8124635/FLAG0692aa9e5 [2023-11-23 20:32:28,809 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/data/3b474720a/3cac6c0d3f3843909586acf4e8124635 [2023-11-23 20:32:28,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:32:28,814 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:32:28,816 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:32:28,816 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:32:28,821 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:32:28,822 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:32:28" (1/1) ... [2023-11-23 20:32:28,823 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42669efa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:28, skipping insertion in model container [2023-11-23 20:32:28,824 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:32:28" (1/1) ... [2023-11-23 20:32:28,852 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:32:28,999 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_5de1d80a-593c-4c64-95b7-3b6d37900260/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-93_fixed.i[916,929] [2023-11-23 20:32:29,040 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:32:29,066 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:32:29,077 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_5de1d80a-593c-4c64-95b7-3b6d37900260/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-93_fixed.i[916,929] [2023-11-23 20:32:29,100 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:32:29,118 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:32:29,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:29 WrapperNode [2023-11-23 20:32:29,119 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:32:29,120 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:32:29,120 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:32:29,120 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:32:29,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:29" (1/1) ... [2023-11-23 20:32:29,138 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:29" (1/1) ... [2023-11-23 20:32:29,172 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 113 [2023-11-23 20:32:29,172 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:32:29,173 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:32:29,173 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:32:29,173 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:32:29,182 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:29" (1/1) ... [2023-11-23 20:32:29,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:29" (1/1) ... [2023-11-23 20:32:29,185 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:29" (1/1) ... [2023-11-23 20:32:29,185 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:29" (1/1) ... [2023-11-23 20:32:29,194 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:29" (1/1) ... [2023-11-23 20:32:29,198 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:29" (1/1) ... [2023-11-23 20:32:29,200 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:29" (1/1) ... [2023-11-23 20:32:29,202 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:29" (1/1) ... [2023-11-23 20:32:29,205 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:32:29,206 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:32:29,206 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:32:29,206 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:32:29,207 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:29" (1/1) ... [2023-11-23 20:32:29,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:32:29,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:32:29,243 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:32:29,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:32:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:32:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:32:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:32:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:32:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:32:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:32:29,364 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:32:29,368 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:32:29,700 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:32:29,844 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:32:29,844 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:32:29,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:32:29 BoogieIcfgContainer [2023-11-23 20:32:29,847 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:32:29,850 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:32:29,851 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:32:29,855 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:32:29,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:32:28" (1/3) ... [2023-11-23 20:32:29,856 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58370b04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:32:29, skipping insertion in model container [2023-11-23 20:32:29,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:29" (2/3) ... [2023-11-23 20:32:29,857 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58370b04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:32:29, skipping insertion in model container [2023-11-23 20:32:29,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:32:29" (3/3) ... [2023-11-23 20:32:29,858 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-93_fixed.i [2023-11-23 20:32:29,880 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:32:29,881 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:32:29,936 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:32:29,944 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@173f424d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:32:29,944 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:32:29,949 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 20:32:29,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-23 20:32:29,963 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:32:29,964 INFO L195 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:32:29,964 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:32:29,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:32:29,971 INFO L85 PathProgramCache]: Analyzing trace with hash 154201264, now seen corresponding path program 1 times [2023-11-23 20:32:29,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:32:29,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808657841] [2023-11-23 20:32:29,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:32:29,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:32:30,251 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 20:32:30,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1807078454] [2023-11-23 20:32:30,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:32:30,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:32:30,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:32:30,263 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:32:30,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 20:32:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:32:30,498 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:32:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:32:30,650 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 20:32:30,655 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 20:32:30,656 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:32:30,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:32:30,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 20:32:30,886 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 20:32:30,891 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:32:30,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:32:30 BoogieIcfgContainer [2023-11-23 20:32:30,967 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:32:30,968 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:32:30,968 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:32:30,969 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:32:30,969 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:32:29" (3/4) ... [2023-11-23 20:32:30,972 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:32:30,974 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:32:30,975 INFO L158 Benchmark]: Toolchain (without parser) took 2161.06ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 92.7MB in the beginning and 104.2MB in the end (delta: -11.5MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2023-11-23 20:32:30,976 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 138.4MB. Free memory was 82.5MB in the beginning and 82.3MB in the end (delta: 151.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:32:30,977 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.65ms. Allocated memory is still 138.4MB. Free memory was 92.4MB in the beginning and 80.3MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 20:32:30,978 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.47ms. Allocated memory is still 138.4MB. Free memory was 80.3MB in the beginning and 78.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:32:30,979 INFO L158 Benchmark]: Boogie Preprocessor took 32.19ms. Allocated memory is still 138.4MB. Free memory was 78.1MB in the beginning and 76.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:32:30,980 INFO L158 Benchmark]: RCFGBuilder took 640.99ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 76.7MB in the beginning and 138.6MB in the end (delta: -61.9MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2023-11-23 20:32:30,981 INFO L158 Benchmark]: TraceAbstraction took 1117.25ms. Allocated memory is still 178.3MB. Free memory was 137.8MB in the beginning and 105.0MB in the end (delta: 32.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-23 20:32:30,981 INFO L158 Benchmark]: Witness Printer took 5.74ms. Allocated memory is still 178.3MB. Free memory was 105.0MB in the beginning and 104.2MB in the end (delta: 809.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:32:30,986 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 138.4MB. Free memory was 82.5MB in the beginning and 82.3MB in the end (delta: 151.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.65ms. Allocated memory is still 138.4MB. Free memory was 92.4MB in the beginning and 80.3MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.47ms. Allocated memory is still 138.4MB. Free memory was 80.3MB in the beginning and 78.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.19ms. Allocated memory is still 138.4MB. Free memory was 78.1MB in the beginning and 76.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 640.99ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 76.7MB in the beginning and 138.6MB in the end (delta: -61.9MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1117.25ms. Allocated memory is still 178.3MB. Free memory was 137.8MB in the beginning and 105.0MB in the end (delta: 32.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 5.74ms. Allocated memory is still 178.3MB. Free memory was 105.0MB in the beginning and 104.2MB in the end (delta: 809.3kB). 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 to_int at line 45, overapproximation of someBinaryDOUBLEComparisonOperation at line 47. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 255; [L23] signed long int var_1_3 = 0; [L24] signed long int var_1_5 = 128; [L25] signed long int var_1_6 = 9; [L26] signed long int var_1_7 = 31; [L27] signed long int var_1_8 = 9; [L28] signed long int var_1_9 = 499; [L29] signed long int var_1_10 = 1; [L30] unsigned char var_1_11 = 0; [L31] unsigned char var_1_12 = 1; [L32] unsigned char var_1_13 = 0; [L33] unsigned char var_1_14 = 1; [L34] signed long int last_1_var_1_10 = 1; [L99] isInitial = 1 [L100] FCALL initially() [L101] COND TRUE 1 [L102] CALL updateLastVariables() [L92] last_1_var_1_10 = var_1_10 [L102] RET updateLastVariables() [L103] CALL updateVariables() [L61] var_1_3 = __VERIFIER_nondet_long() [L62] CALL assume_abort_if_not(var_1_3 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=128, var_1_6=9, var_1_7=31, var_1_8=9, var_1_9=499] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_3 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=128, var_1_6=9, var_1_7=31, var_1_8=9, var_1_9=499] [L63] CALL assume_abort_if_not(var_1_3 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=128, var_1_6=9, var_1_7=31, var_1_8=9, var_1_9=499] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_3 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=128, var_1_6=9, var_1_7=31, var_1_8=9, var_1_9=499] [L64] CALL assume_abort_if_not(var_1_3 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=128, var_1_6=9, var_1_7=31, var_1_8=9, var_1_9=499] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_3 != 0) VAL [isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=128, var_1_6=9, var_1_7=31, var_1_8=9, var_1_9=499] [L65] var_1_5 = __VERIFIER_nondet_long() [L66] CALL assume_abort_if_not(var_1_5 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=9, var_1_7=31, var_1_8=9, var_1_9=499] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_5 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=9, var_1_7=31, var_1_8=9, var_1_9=499] [L67] CALL assume_abort_if_not(var_1_5 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=9, var_1_7=31, var_1_8=9, var_1_9=499] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_5 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=9, var_1_7=31, var_1_8=9, var_1_9=499] [L68] CALL assume_abort_if_not(var_1_5 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=9, var_1_7=31, var_1_8=9, var_1_9=499] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_5 != 0) VAL [isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=9, var_1_7=31, var_1_8=9, var_1_9=499] [L69] var_1_6 = __VERIFIER_nondet_long() [L70] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=31, var_1_8=9, var_1_9=499] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=31, var_1_8=9, var_1_9=499] [L71] CALL assume_abort_if_not(var_1_6 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=31, var_1_8=9, var_1_9=499] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_6 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=31, var_1_8=9, var_1_9=499] [L72] var_1_7 = __VERIFIER_nondet_long() [L73] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=9, var_1_9=499] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=9, var_1_9=499] [L74] CALL assume_abort_if_not(var_1_7 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=9, var_1_9=499] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_7 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=9, var_1_9=499] [L75] var_1_8 = __VERIFIER_nondet_long() [L76] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=0, var_1_9=499] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=0, var_1_9=499] [L77] CALL assume_abort_if_not(var_1_8 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=0, var_1_9=499] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_8 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=0, var_1_9=499] [L78] var_1_9 = __VERIFIER_nondet_long() [L79] CALL assume_abort_if_not(var_1_9 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_9 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=0, var_1_9=0] [L80] CALL assume_abort_if_not(var_1_9 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_9 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=0, var_1_9=0] [L81] var_1_12 = __VERIFIER_nondet_uchar() [L82] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=0, var_1_9=0] [L83] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=0, var_1_9=0] [L84] var_1_13 = __VERIFIER_nondet_uchar() [L85] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=0, var_1_9=0] [L86] CALL assume_abort_if_not(var_1_13 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_13 <= 0) VAL [isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=0, var_1_9=0] [L87] var_1_14 = __VERIFIER_nondet_uchar() [L88] CALL assume_abort_if_not(var_1_14 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_14 >= 1) VAL [isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=0, var_1_9=0] [L89] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, last_1_var_1_10=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=255, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=0, var_1_9=0] [L103] RET updateVariables() [L104] CALL step() [L38] COND FALSE !(((- last_1_var_1_10) / var_1_3) != (last_1_var_1_10 / var_1_5)) [L45] var_1_1 = 64.51f [L47] COND TRUE var_1_1 > (((((var_1_9 * 128.4)) > ((var_1_5 * var_1_1))) ? ((var_1_9 * 128.4)) : ((var_1_5 * var_1_1)))) [L48] var_1_10 = 2147000000.0f [L52] COND FALSE !(! (var_1_3 <= var_1_10)) [L55] COND TRUE (var_1_7 / var_1_3) < ((((((((var_1_8) > (var_1_6)) ? (var_1_8) : (var_1_6)))) < (var_1_5)) ? (((((var_1_8) > (var_1_6)) ? (var_1_8) : (var_1_6)))) : (var_1_5))) [L56] var_1_11 = var_1_14 [L104] RET step() [L105] CALL, EXPR property() [L95-L96] return (((((- last_1_var_1_10) / var_1_3) != (last_1_var_1_10 / var_1_5)) ? ((last_1_var_1_10 != (((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7))) - var_1_8)) ? (var_1_1 == ((signed long int) var_1_9)) : (var_1_1 == ((signed long int) var_1_9))) : (var_1_1 == ((signed long int) 64.51f))) && ((var_1_1 > (((((var_1_9 * 128.4)) > ((var_1_5 * var_1_1))) ? ((var_1_9 * 128.4)) : ((var_1_5 * var_1_1))))) ? (var_1_10 == ((signed long int) 2147000000.0f)) : (var_1_10 == ((signed long int) var_1_9)))) && ((! (var_1_3 <= var_1_10)) ? (var_1_11 == ((unsigned char) (var_1_12 && var_1_13))) : (((var_1_7 / var_1_3) < ((((((((var_1_8) > (var_1_6)) ? (var_1_8) : (var_1_6)))) < (var_1_5)) ? (((((var_1_8) > (var_1_6)) ? (var_1_8) : (var_1_6)))) : (var_1_5)))) ? (var_1_11 == ((unsigned char) var_1_14)) : 1)) ; [L105] RET, EXPR property() [L105] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=1, var_1_10=4, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=0, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=1, var_1_10=4, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=0, var_1_3=4, var_1_5=5, var_1_6=6, var_1_7=7, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 20, 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=38occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 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 [2023-11-23 20:32:31,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-93_fixed.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ddec760117dfe95addb3119868a1a4b9235e79a721f69484238bafe264cc3b9f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:32:33,796 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:32:33,879 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 20:32:33,888 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:32:33,889 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:32:33,941 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:32:33,942 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:32:33,942 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:32:33,944 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:32:33,949 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:32:33,949 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:32:33,950 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:32:33,950 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:32:33,952 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:32:33,952 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:32:33,953 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:32:33,954 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:32:33,955 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:32:33,955 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:32:33,957 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:32:33,957 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:32:33,958 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:32:33,958 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:32:33,959 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:32:33,959 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:32:33,960 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:32:33,960 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:32:33,961 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:32:33,961 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:32:33,962 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:32:33,963 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:32:33,963 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 20:32:33,964 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:32:33,964 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:32:33,965 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:32:33,965 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:32:33,965 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:32:33,966 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:32:33,966 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:32:33,967 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:32:33,968 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:32:33,968 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:32:33,968 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:32:33,969 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:32:33,969 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ddec760117dfe95addb3119868a1a4b9235e79a721f69484238bafe264cc3b9f [2023-11-23 20:32:34,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:32:34,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:32:34,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:32:34,527 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:32:34,528 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:32:34,529 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-93_fixed.i [2023-11-23 20:32:37,807 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:32:38,062 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:32:38,063 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-93_fixed.i [2023-11-23 20:32:38,071 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/data/f53260dae/c17efc15cf244b74a69c7c51f8f38a21/FLAG059b47091 [2023-11-23 20:32:38,089 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/data/f53260dae/c17efc15cf244b74a69c7c51f8f38a21 [2023-11-23 20:32:38,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:32:38,094 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:32:38,095 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:32:38,096 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:32:38,101 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:32:38,102 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:32:38" (1/1) ... [2023-11-23 20:32:38,103 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cae481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38, skipping insertion in model container [2023-11-23 20:32:38,103 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:32:38" (1/1) ... [2023-11-23 20:32:38,131 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:32:38,283 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_5de1d80a-593c-4c64-95b7-3b6d37900260/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-93_fixed.i[916,929] [2023-11-23 20:32:38,327 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:32:38,343 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:32:38,358 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_5de1d80a-593c-4c64-95b7-3b6d37900260/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-93_fixed.i[916,929] [2023-11-23 20:32:38,379 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:32:38,399 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:32:38,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38 WrapperNode [2023-11-23 20:32:38,400 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:32:38,401 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:32:38,401 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:32:38,401 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:32:38,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38" (1/1) ... [2023-11-23 20:32:38,421 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38" (1/1) ... [2023-11-23 20:32:38,449 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2023-11-23 20:32:38,449 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:32:38,453 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:32:38,454 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:32:38,454 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:32:38,463 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38" (1/1) ... [2023-11-23 20:32:38,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38" (1/1) ... [2023-11-23 20:32:38,468 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38" (1/1) ... [2023-11-23 20:32:38,469 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38" (1/1) ... [2023-11-23 20:32:38,479 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38" (1/1) ... [2023-11-23 20:32:38,483 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38" (1/1) ... [2023-11-23 20:32:38,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38" (1/1) ... [2023-11-23 20:32:38,489 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38" (1/1) ... [2023-11-23 20:32:38,493 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:32:38,494 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:32:38,494 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:32:38,494 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:32:38,495 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38" (1/1) ... [2023-11-23 20:32:38,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:32:38,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:32:38,536 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:32:38,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:32:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:32:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:32:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:32:38,578 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:32:38,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:32:38,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:32:38,659 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:32:38,662 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:32:45,355 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:32:45,459 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:32:45,459 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:32:45,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:32:45 BoogieIcfgContainer [2023-11-23 20:32:45,460 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:32:45,467 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:32:45,467 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:32:45,471 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:32:45,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:32:38" (1/3) ... [2023-11-23 20:32:45,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@656bf03e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:32:45, skipping insertion in model container [2023-11-23 20:32:45,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:38" (2/3) ... [2023-11-23 20:32:45,476 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@656bf03e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:32:45, skipping insertion in model container [2023-11-23 20:32:45,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:32:45" (3/3) ... [2023-11-23 20:32:45,478 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-93_fixed.i [2023-11-23 20:32:45,499 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:32:45,500 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:32:45,571 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:32:45,580 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1832eff2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:32:45,581 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:32:45,586 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 25 states have internal predecessors, (34), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 20:32:45,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-23 20:32:45,607 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:32:45,608 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:32:45,608 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:32:45,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:32:45,616 INFO L85 PathProgramCache]: Analyzing trace with hash 671086619, now seen corresponding path program 1 times [2023-11-23 20:32:45,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:32:45,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2086562758] [2023-11-23 20:32:45,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:32:45,634 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 [2023-11-23 20:32:45,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:32:45,641 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:32:45,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:32:46,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:32:46,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 20:32:46,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:32:46,360 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2023-11-23 20:32:46,360 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:32:46,361 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:32:46,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2086562758] [2023-11-23 20:32:46,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2086562758] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:32:46,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:32:46,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:32:46,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756581329] [2023-11-23 20:32:46,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:32:46,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 20:32:46,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:32:46,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 20:32:46,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:32:46,407 INFO L87 Difference]: Start difference. First operand has 47 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 25 states have internal predecessors, (34), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 20:32:48,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:32:48,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:32:48,635 INFO L93 Difference]: Finished difference Result 91 states and 166 transitions. [2023-11-23 20:32:48,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 20:32:48,693 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 117 [2023-11-23 20:32:48,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:32:48,702 INFO L225 Difference]: With dead ends: 91 [2023-11-23 20:32:48,702 INFO L226 Difference]: Without dead ends: 45 [2023-11-23 20:32:48,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:32:48,711 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-23 20:32:48,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2023-11-23 20:32:48,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-23 20:32:48,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-11-23 20:32:48,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 states have internal predecessors, (29), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 20:32:48,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 69 transitions. [2023-11-23 20:32:48,808 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 69 transitions. Word has length 117 [2023-11-23 20:32:48,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:32:48,812 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 69 transitions. [2023-11-23 20:32:48,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 20:32:48,813 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 69 transitions. [2023-11-23 20:32:48,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-23 20:32:48,819 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:32:48,820 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:32:48,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/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)] Forceful destruction successful, exit code 0 [2023-11-23 20:32:49,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:32:49,022 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:32:49,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:32:49,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1310300833, now seen corresponding path program 1 times [2023-11-23 20:32:49,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:32:49,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [345775929] [2023-11-23 20:32:49,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:32:49,025 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 [2023-11-23 20:32:49,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:32:49,026 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:32:49,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/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 (3)] Waiting until timeout for monitored process [2023-11-23 20:32:49,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:32:49,614 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:32:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:32:50,080 ERROR L246 FreeRefinementEngine]: Caught known exception: Invalid model [2023-11-23 20:32:50,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [169448416] [2023-11-23 20:32:50,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:32:50,081 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:32:50,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 20:32:50,084 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:32:50,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de1d80a-593c-4c64-95b7-3b6d37900260/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-23 20:32:50,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:32:50,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 20:32:50,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:23,205 WARN L854 $PredicateComparison]: unable to prove that (and (= c_~var_1_1~0 ((_ fp.to_sbv 32) roundTowardZero ((_ to_fp 8 24) c_currentRoundingMode (/ 6451.0 100.0)))) (= c_~var_1_10~0 ((_ fp.to_sbv 32) roundTowardZero ((_ to_fp 8 24) c_currentRoundingMode 2147000000.0))) (= (bvsdiv (bvneg c_~last_1_var_1_10~0) c_~var_1_3~0) (bvsdiv c_~last_1_var_1_10~0 c_~var_1_5~0)) (let ((.cse2 (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_9~0) ((_ to_fp 11 53) c_currentRoundingMode (/ 642.0 5.0)))) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_~var_1_5~0 c_~var_1_1~0)))) (let ((.cse0 (fp.gt .cse2 .cse3)) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_1~0))) (or (and .cse0 (fp.gt .cse1 .cse2)) (and (not .cse0) (fp.gt .cse1 .cse3)))))) is different from false [2023-11-23 20:33:25,264 WARN L876 $PredicateComparison]: unable to prove that (and (= c_~var_1_1~0 ((_ fp.to_sbv 32) roundTowardZero ((_ to_fp 8 24) c_currentRoundingMode (/ 6451.0 100.0)))) (= c_~var_1_10~0 ((_ fp.to_sbv 32) roundTowardZero ((_ to_fp 8 24) c_currentRoundingMode 2147000000.0))) (= (bvsdiv (bvneg c_~last_1_var_1_10~0) c_~var_1_3~0) (bvsdiv c_~last_1_var_1_10~0 c_~var_1_5~0)) (let ((.cse2 (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_9~0) ((_ to_fp 11 53) c_currentRoundingMode (/ 642.0 5.0)))) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_~var_1_5~0 c_~var_1_1~0)))) (let ((.cse0 (fp.gt .cse2 .cse3)) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_1~0))) (or (and .cse0 (fp.gt .cse1 .cse2)) (and (not .cse0) (fp.gt .cse1 .cse3)))))) is different from true