./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/combinations/square_6+soft_float_4-3a.c.cil.c --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/square_6+soft_float_4-3a.c.cil.yml/witness.yml --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03fe66fa Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/combinations/square_6+soft_float_4-3a.c.cil.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/square_6+soft_float_4-3a.c.cil.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-03fe66f-m [2024-08-15 18:11:21,014 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-15 18:11:21,087 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-15 18:11:21,092 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-15 18:11:21,092 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-15 18:11:21,121 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-15 18:11:21,122 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-15 18:11:21,125 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-15 18:11:21,126 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-15 18:11:21,127 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-15 18:11:21,128 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-15 18:11:21,128 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-15 18:11:21,129 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-15 18:11:21,129 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-15 18:11:21,129 INFO L153 SettingsManager]: * Use SBE=true [2024-08-15 18:11:21,130 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-15 18:11:21,130 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-15 18:11:21,131 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-15 18:11:21,131 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-15 18:11:21,131 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-15 18:11:21,132 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-15 18:11:21,132 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-15 18:11:21,133 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-15 18:11:21,133 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-15 18:11:21,133 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-15 18:11:21,134 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-15 18:11:21,134 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-15 18:11:21,134 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-15 18:11:21,135 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-15 18:11:21,135 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-15 18:11:21,135 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-15 18:11:21,136 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-15 18:11:21,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-15 18:11:21,136 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-15 18:11:21,137 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-15 18:11:21,137 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-15 18:11:21,137 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-15 18:11:21,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-15 18:11:21,138 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-15 18:11:21,138 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-15 18:11:21,138 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-15 18:11:21,139 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-15 18:11:21,139 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-15 18:11:21,139 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-15 18:11:21,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-15 18:11:21,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-15 18:11:21,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-15 18:11:21,461 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-15 18:11:21,461 INFO L274 PluginConnector]: CDTParser initialized [2024-08-15 18:11:21,462 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/square_6+soft_float_4-3a.c.cil.c [2024-08-15 18:11:22,931 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-15 18:11:23,164 INFO L384 CDTParser]: Found 1 translation units. [2024-08-15 18:11:23,165 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_6+soft_float_4-3a.c.cil.c [2024-08-15 18:11:23,175 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42355a99f/d603c653b3934d6db313cadd2203f533/FLAGf93bbc1ef [2024-08-15 18:11:23,503 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42355a99f/d603c653b3934d6db313cadd2203f533 [2024-08-15 18:11:23,506 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-15 18:11:23,507 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-15 18:11:23,507 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/square_6+soft_float_4-3a.c.cil.yml/witness.yml [2024-08-15 18:11:23,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-15 18:11:23,613 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-15 18:11:23,614 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-15 18:11:23,614 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-15 18:11:23,621 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-15 18:11:23,622 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:11:23" (1/2) ... [2024-08-15 18:11:23,623 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b1ae910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:11:23, skipping insertion in model container [2024-08-15 18:11:23,623 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:11:23" (1/2) ... [2024-08-15 18:11:23,625 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@697eb4e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:11:23, skipping insertion in model container [2024-08-15 18:11:23,625 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:11:23" (2/2) ... [2024-08-15 18:11:23,626 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b1ae910 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:23, skipping insertion in model container [2024-08-15 18:11:23,627 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:11:23" (2/2) ... [2024-08-15 18:11:23,667 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-15 18:11:23,856 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_6+soft_float_4-3a.c.cil.c[1997,2010] [2024-08-15 18:11:23,864 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_6+soft_float_4-3a.c.cil.c[2366,2379] [2024-08-15 18:11:23,928 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:11:23,943 INFO L200 MainTranslator]: Completed pre-run [2024-08-15 18:11:23,956 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_6+soft_float_4-3a.c.cil.c[1997,2010] [2024-08-15 18:11:23,958 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_6+soft_float_4-3a.c.cil.c[2366,2379] [2024-08-15 18:11:23,982 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:11:24,000 INFO L204 MainTranslator]: Completed translation [2024-08-15 18:11:24,001 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:24 WrapperNode [2024-08-15 18:11:24,001 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-15 18:11:24,002 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-15 18:11:24,002 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-15 18:11:24,002 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-15 18:11:24,014 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:24" (1/1) ... [2024-08-15 18:11:24,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:24" (1/1) ... [2024-08-15 18:11:24,024 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:24" (1/1) ... [2024-08-15 18:11:24,051 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-08-15 18:11:24,052 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:24" (1/1) ... [2024-08-15 18:11:24,052 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:24" (1/1) ... [2024-08-15 18:11:24,068 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:24" (1/1) ... [2024-08-15 18:11:24,070 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:24" (1/1) ... [2024-08-15 18:11:24,072 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:24" (1/1) ... [2024-08-15 18:11:24,075 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-15 18:11:24,076 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-15 18:11:24,076 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-15 18:11:24,076 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-15 18:11:24,077 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:24" (1/1) ... [2024-08-15 18:11:24,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-15 18:11:24,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:11:24,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-08-15 18:11:24,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-08-15 18:11:24,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-15 18:11:24,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-15 18:11:24,181 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-15 18:11:24,181 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-15 18:11:24,181 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-15 18:11:24,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-15 18:11:24,183 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-08-15 18:11:24,183 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2024-08-15 18:11:24,183 INFO L138 BoogieDeclarations]: Found implementation of procedure mulflt [2024-08-15 18:11:24,183 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-15 18:11:24,183 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-15 18:11:24,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-15 18:11:24,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-15 18:11:24,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-15 18:11:24,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-15 18:11:24,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-15 18:11:24,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-15 18:11:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-15 18:11:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-15 18:11:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-15 18:11:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-15 18:11:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-15 18:11:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-15 18:11:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-15 18:11:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-15 18:11:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-15 18:11:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-15 18:11:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-08-15 18:11:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2024-08-15 18:11:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure mulflt [2024-08-15 18:11:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-15 18:11:24,188 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-15 18:11:24,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-15 18:11:24,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-15 18:11:24,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-15 18:11:24,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-15 18:11:24,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-15 18:11:24,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-15 18:11:24,322 INFO L273 CfgBuilder]: Building ICFG [2024-08-15 18:11:24,329 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-15 18:11:24,865 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-08-15 18:11:24,866 INFO L327 CfgBuilder]: Performing block encoding [2024-08-15 18:11:24,876 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-15 18:11:24,877 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-15 18:11:24,877 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:11:24 BoogieIcfgContainer [2024-08-15 18:11:24,877 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-15 18:11:24,879 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-15 18:11:24,879 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-15 18:11:24,883 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-15 18:11:24,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.08 06:11:23" (1/4) ... [2024-08-15 18:11:24,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402d7a68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:11:24, skipping insertion in model container [2024-08-15 18:11:24,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:11:23" (2/4) ... [2024-08-15 18:11:24,885 WARN L100 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-15 18:11:24,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402d7a68 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:11:24, skipping insertion in model container [2024-08-15 18:11:24,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:24" (3/4) ... [2024-08-15 18:11:24,890 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402d7a68 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:11:24, skipping insertion in model container [2024-08-15 18:11:24,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:11:24" (4/4) ... [2024-08-15 18:11:24,891 INFO L128 eAbstractionObserver]: Analyzing ICFG square_6+soft_float_4-3a.c.cil.c [2024-08-15 18:11:24,909 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-15 18:11:24,909 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-15 18:11:24,943 INFO L90 WitnessUtils]: Constructing product of automaton with 118 states and violation witness of the following lengths: [25] [2024-08-15 18:11:25,316 INFO L95 WitnessUtils]: Product has 1037 reachable states. [2024-08-15 18:11:25,373 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-15 18:11:25,384 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=false, 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;@49001a6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-15 18:11:25,384 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-15 18:11:25,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1482 transitions. [2024-08-15 18:11:25,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-08-15 18:11:25,408 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:11:25,411 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 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] [2024-08-15 18:11:25,411 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [main1Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:11:25,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:11:25,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1456831635, now seen corresponding path program 1 times [2024-08-15 18:11:25,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:11:25,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2679628] [2024-08-15 18:11:25,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:11:25,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:11:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:25,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:11:25,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:25,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-08-15 18:11:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:25,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-08-15 18:11:25,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:25,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-08-15 18:11:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:25,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-08-15 18:11:25,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:25,792 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-08-15 18:11:25,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:11:25,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2679628] [2024-08-15 18:11:25,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2679628] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:11:25,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:11:25,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-15 18:11:25,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875847266] [2024-08-15 18:11:25,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:11:25,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-15 18:11:25,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:11:25,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-15 18:11:25,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-15 18:11:25,845 INFO L87 Difference]: Start difference. First operand 1037 states and 1482 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-15 18:11:25,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:11:25,938 INFO L93 Difference]: Finished difference Result 930 states and 1236 transitions. [2024-08-15 18:11:25,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-15 18:11:25,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-08-15 18:11:25,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:11:25,952 INFO L225 Difference]: With dead ends: 930 [2024-08-15 18:11:25,953 INFO L226 Difference]: Without dead ends: 157 [2024-08-15 18:11:25,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-15 18:11:25,960 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 11 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-15 18:11:25,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 243 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-15 18:11:25,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-08-15 18:11:26,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 152. [2024-08-15 18:11:26,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 123 states have (on average 1.3089430894308942) internal successors, (161), 125 states have internal predecessors, (161), 18 states have call successors, (18), 12 states have call predecessors, (18), 10 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2024-08-15 18:11:26,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 196 transitions. [2024-08-15 18:11:26,026 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 196 transitions. Word has length 62 [2024-08-15 18:11:26,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:11:26,028 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 196 transitions. [2024-08-15 18:11:26,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-15 18:11:26,028 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 196 transitions. [2024-08-15 18:11:26,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-08-15 18:11:26,030 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:11:26,030 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 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] [2024-08-15 18:11:26,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-15 18:11:26,031 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [main1Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:11:26,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:11:26,031 INFO L85 PathProgramCache]: Analyzing trace with hash -144329681, now seen corresponding path program 1 times [2024-08-15 18:11:26,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:11:26,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24020505] [2024-08-15 18:11:26,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:11:26,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:11:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:26,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:11:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:26,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-08-15 18:11:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:26,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-08-15 18:11:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:26,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-08-15 18:11:26,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:26,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-08-15 18:11:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:26,241 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-08-15 18:11:26,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:11:26,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24020505] [2024-08-15 18:11:26,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24020505] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:11:26,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:11:26,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-15 18:11:26,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376545597] [2024-08-15 18:11:26,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:11:26,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-15 18:11:26,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:11:26,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-15 18:11:26,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-15 18:11:26,245 INFO L87 Difference]: Start difference. First operand 152 states and 196 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-15 18:11:26,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:11:26,287 INFO L93 Difference]: Finished difference Result 152 states and 195 transitions. [2024-08-15 18:11:26,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-15 18:11:26,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 63 [2024-08-15 18:11:26,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:11:26,289 INFO L225 Difference]: With dead ends: 152 [2024-08-15 18:11:26,291 INFO L226 Difference]: Without dead ends: 152 [2024-08-15 18:11:26,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-15 18:11:26,293 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 0 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-15 18:11:26,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 184 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-15 18:11:26,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-08-15 18:11:26,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-08-15 18:11:26,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 123 states have (on average 1.3008130081300813) internal successors, (160), 125 states have internal predecessors, (160), 18 states have call successors, (18), 12 states have call predecessors, (18), 10 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2024-08-15 18:11:26,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 195 transitions. [2024-08-15 18:11:26,317 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 195 transitions. Word has length 63 [2024-08-15 18:11:26,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:11:26,318 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 195 transitions. [2024-08-15 18:11:26,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-15 18:11:26,318 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 195 transitions. [2024-08-15 18:11:26,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-08-15 18:11:26,319 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:11:26,320 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 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] [2024-08-15 18:11:26,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-15 18:11:26,320 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [main1Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:11:26,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:11:26,321 INFO L85 PathProgramCache]: Analyzing trace with hash 817284336, now seen corresponding path program 1 times [2024-08-15 18:11:26,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:11:26,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053391401] [2024-08-15 18:11:26,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:11:26,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:11:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:26,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:11:26,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:26,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-08-15 18:11:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:26,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-08-15 18:11:26,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:26,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-08-15 18:11:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:26,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-08-15 18:11:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:26,897 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-08-15 18:11:26,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:11:26,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053391401] [2024-08-15 18:11:26,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053391401] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-15 18:11:26,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477342980] [2024-08-15 18:11:26,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:11:26,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-15 18:11:26,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:11:26,902 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-15 18:11:26,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-08-15 18:11:27,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:27,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 15 conjunts are in the unsatisfiable core [2024-08-15 18:11:27,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-15 18:11:27,170 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-08-15 18:11:27,173 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-15 18:11:27,390 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-08-15 18:11:27,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477342980] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-15 18:11:27,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-15 18:11:27,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-08-15 18:11:27,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845103214] [2024-08-15 18:11:27,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-15 18:11:27,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-08-15 18:11:27,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:11:27,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-08-15 18:11:27,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-08-15 18:11:27,393 INFO L87 Difference]: Start difference. First operand 152 states and 195 transitions. Second operand has 16 states, 16 states have (on average 3.3125) internal successors, (53), 12 states have internal predecessors, (53), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2024-08-15 18:11:27,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:11:27,687 INFO L93 Difference]: Finished difference Result 168 states and 214 transitions. [2024-08-15 18:11:27,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-15 18:11:27,690 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 12 states have internal predecessors, (53), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) Word has length 63 [2024-08-15 18:11:27,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:11:27,691 INFO L225 Difference]: With dead ends: 168 [2024-08-15 18:11:27,692 INFO L226 Difference]: Without dead ends: 165 [2024-08-15 18:11:27,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 128 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-08-15 18:11:27,693 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 122 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-08-15 18:11:27,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1174 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-08-15 18:11:27,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-08-15 18:11:27,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 146. [2024-08-15 18:11:27,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 119 states have (on average 1.2857142857142858) internal successors, (153), 121 states have internal predecessors, (153), 17 states have call successors, (17), 11 states have call predecessors, (17), 9 states have return successors, (15), 13 states have call predecessors, (15), 14 states have call successors, (15) [2024-08-15 18:11:27,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 185 transitions. [2024-08-15 18:11:27,710 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 185 transitions. Word has length 63 [2024-08-15 18:11:27,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:11:27,710 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 185 transitions. [2024-08-15 18:11:27,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 12 states have internal predecessors, (53), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2024-08-15 18:11:27,711 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 185 transitions. [2024-08-15 18:11:27,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-08-15 18:11:27,712 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:11:27,712 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 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] [2024-08-15 18:11:27,728 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-08-15 18:11:27,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-15 18:11:27,917 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [main1Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:11:27,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:11:27,917 INFO L85 PathProgramCache]: Analyzing trace with hash 204892426, now seen corresponding path program 1 times [2024-08-15 18:11:27,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:11:27,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851039903] [2024-08-15 18:11:27,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:11:27,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:11:28,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:11:28,060 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-15 18:11:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:11:28,152 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-15 18:11:28,152 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-15 18:11:28,153 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-15 18:11:28,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location main1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-15 18:11:28,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-08-15 18:11:28,160 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-08-15 18:11:28,163 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2024-08-15 18:11:28,209 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.08 06:11:28 BoogieIcfgContainer [2024-08-15 18:11:28,210 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-15 18:11:28,210 INFO L158 Benchmark]: Toolchain (without parser) took 4597.69ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 128.5MB in the beginning and 142.8MB in the end (delta: -14.2MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2024-08-15 18:11:28,210 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 109.1MB. Free memory was 80.4MB in the beginning and 80.3MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:11:28,211 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 161.5MB. Free memory is still 132.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:11:28,211 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.91ms. Allocated memory is still 161.5MB. Free memory was 128.5MB in the beginning and 113.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-08-15 18:11:28,211 INFO L158 Benchmark]: Boogie Preprocessor took 72.89ms. Allocated memory is still 161.5MB. Free memory was 113.8MB in the beginning and 110.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-15 18:11:28,211 INFO L158 Benchmark]: IcfgBuilder took 801.39ms. Allocated memory is still 161.5MB. Free memory was 110.7MB in the beginning and 109.4MB in the end (delta: 1.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-08-15 18:11:28,212 INFO L158 Benchmark]: TraceAbstraction took 3330.46ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 108.4MB in the beginning and 142.8MB in the end (delta: -34.4MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. [2024-08-15 18:11:28,213 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 109.1MB. Free memory was 80.4MB in the beginning and 80.3MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.17ms. Allocated memory is still 161.5MB. Free memory is still 132.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 387.91ms. Allocated memory is still 161.5MB. Free memory was 128.5MB in the beginning and 113.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.89ms. Allocated memory is still 161.5MB. Free memory was 113.8MB in the beginning and 110.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 801.39ms. Allocated memory is still 161.5MB. Free memory was 110.7MB in the beginning and 109.4MB in the end (delta: 1.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3330.46ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 108.4MB in the beginning and 142.8MB in the end (delta: -34.4MB). Peak memory consumption was 1.3MB. 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: 60]: 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 bitwiseOr at line 153, overapproximation of bitwiseAnd at line 119. Possible FailurePath: [L309] COND FALSE !(__VERIFIER_nondet_int()) [L312] CALL main2() [L269] unsigned int a ; [L270] unsigned int ma = __VERIFIER_nondet_uint(); [L271] signed char ea = __VERIFIER_nondet_char(); [L272] unsigned int b ; [L273] unsigned int mb = __VERIFIER_nondet_uint(); [L274] signed char eb = __VERIFIER_nondet_char(); [L275] unsigned int r_add1 ; [L276] unsigned int r_add2 ; [L277] unsigned int zero ; [L278] int tmp ; [L279] int tmp___0 ; [L280] int __retres14 ; VAL [ea=127, eb=-127] [L284] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L68] unsigned int res ; [L69] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L72] COND TRUE ! m [L73] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0] [L123] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, e=0] [L284] RET, EXPR base2flt(0, 0) VAL [ea=127, eb=-127] [L284] zero = base2flt(0, 0) [L285] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=127, \old(m)=33554432] [L68] unsigned int res ; [L69] unsigned int __retres4 ; VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L72] COND FALSE !(! m) VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L78] COND FALSE !(m < 1U << 24U) VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L100] COND TRUE 1 VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L102] COND TRUE m >= 1U << 25U VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L107] COND TRUE e >= 127 [L108] __retres4 = 4294967295U VAL [\old(e)=127, \old(m)=33554432, __retres4=4294967295, m=33554432] [L123] return (__retres4); VAL [\old(e)=127, \old(m)=33554432, \result=4294967295, m=33554432] [L285] RET, EXPR base2flt(ma, ea) VAL [ea=127, eb=-127, ma=33554432] [L285] a = base2flt(ma, ea) [L286] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=-127, \old(m)=16777216] [L68] unsigned int res ; [L69] unsigned int __retres4 ; VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L72] COND FALSE !(! m) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L78] COND FALSE !(m < 1U << 24U) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L100] COND TRUE 1 VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L102] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L119] EXPR m & ~ (1U << 24U) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L119] EXPR m & ~ (1U << 24U) [L119] EXPR m & ~ (1U << 24U) VAL [\old(e)=-127, \old(m)=16777216, e=-127] [L119] m = m & ~ (1U << 24U) [L120] EXPR m | ((unsigned int )(e + 128) << 24U) [L120] EXPR m | ((unsigned int )(e + 128) << 24U) VAL [\old(e)=-127, \old(m)=16777216] [L120] res = m | ((unsigned int )(e + 128) << 24U) [L121] __retres4 = res VAL [\old(e)=-127, \old(m)=16777216, __retres4=16777216] [L123] return (__retres4); VAL [\old(e)=-127, \old(m)=16777216, \result=16777216] [L286] RET, EXPR base2flt(mb, eb) VAL [a=4294967295, ea=127, eb=-127, ma=33554432, mb=16777216] [L286] b = base2flt(mb, eb) [L287] CALL addflt(a, b) VAL [\old(a)=4294967295, \old(b)=16777216] [L127] unsigned int res ; [L128] unsigned int ma ; [L129] unsigned int mb ; [L130] unsigned int delta ; [L131] int ea ; [L132] int eb ; [L133] unsigned int tmp ; [L134] unsigned int __retres10 ; VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, b=16777216] [L137] COND FALSE !(a < b) VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, b=16777216] [L144] COND FALSE !(! b) VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, b=16777216] [L151] ma = a & ((1U << 24U) - 1U) [L152] ea = (int )(a >> 24U) - 128 VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, b=16777216, ea=127, ma=16777215] [L153] EXPR ma | (1U << 24U) VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, b=16777216, ea=127, ma=16777215] [L153] EXPR ma | (1U << 24U) [L153] EXPR ma | (1U << 24U) VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, b=16777216, ea=127] [L153] ma = ma | (1U << 24U) [L154] mb = b & ((1U << 24U) - 1U) [L155] eb = (int )(b >> 24U) - 128 VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, ea=127, eb=-127, ma=16777216, mb=0] [L156] EXPR mb | (1U << 24U) [L156] EXPR mb | (1U << 24U) VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, ea=127, eb=-127, ma=16777216] [L156] mb = mb | (1U << 24U) [L157] CALL __VERIFIER_assert(ea >= eb) VAL [\old(cond)=1] [L59] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L157] RET __VERIFIER_assert(ea >= eb) VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, ea=127, eb=-127, ma=16777216, mb=16777216] [L158] delta = ea - eb VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, delta=254, ea=127, ma=16777216, mb=16777216] [L159] CALL __VERIFIER_assert(delta < sizeof(mb) * 8) VAL [\old(cond)=0] [L59] COND TRUE !(cond) VAL [\old(cond)=0] [L60] reach_error() VAL [\old(cond)=0] - UnprovableResult [Line: 48]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 139 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 136 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 133 mSDsluCounter, 1601 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1273 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 215 IncrementalHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 328 mSDtfsCounter, 215 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 154 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1037occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 315 NumberOfCodeBlocks, 315 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 309 ConstructedInterpolants, 0 QuantifiedInterpolants, 511 SizeOfPredicates, 2 NumberOfNonLiveVariables, 167 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 96/105 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 [2024-08-15 18:11:28,249 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (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: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/combinations/square_6+soft_float_4-3a.c.cil.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/square_6+soft_float_4-3a.c.cil.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-03fe66f-m [2024-08-15 18:11:30,623 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-15 18:11:30,718 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-08-15 18:11:30,725 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-15 18:11:30,725 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-15 18:11:30,761 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-15 18:11:30,761 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-15 18:11:30,762 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-15 18:11:30,762 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-15 18:11:30,763 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-15 18:11:30,763 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-15 18:11:30,764 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-15 18:11:30,764 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-15 18:11:30,765 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-15 18:11:30,766 INFO L153 SettingsManager]: * Use SBE=true [2024-08-15 18:11:30,767 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-15 18:11:30,767 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-15 18:11:30,767 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-15 18:11:30,768 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-15 18:11:30,768 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-15 18:11:30,768 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-15 18:11:30,769 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-15 18:11:30,769 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-15 18:11:30,769 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-08-15 18:11:30,770 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-08-15 18:11:30,770 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-15 18:11:30,770 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-08-15 18:11:30,771 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-15 18:11:30,771 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-15 18:11:30,771 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-15 18:11:30,771 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-15 18:11:30,772 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-15 18:11:30,772 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-15 18:11:30,772 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-15 18:11:30,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-15 18:11:30,773 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-15 18:11:30,773 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-15 18:11:30,774 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-15 18:11:30,774 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-08-15 18:11:30,774 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-08-15 18:11:30,774 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-15 18:11:30,777 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-15 18:11:30,777 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-15 18:11:30,777 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-15 18:11:30,777 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-15 18:11:30,778 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-08-15 18:11:30,778 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-15 18:11:31,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-15 18:11:31,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-15 18:11:31,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-15 18:11:31,139 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-15 18:11:31,140 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-15 18:11:31,142 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/square_6+soft_float_4-3a.c.cil.yml/witness.yml [2024-08-15 18:11:31,247 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-15 18:11:31,247 INFO L274 PluginConnector]: CDTParser initialized [2024-08-15 18:11:31,248 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/square_6+soft_float_4-3a.c.cil.c [2024-08-15 18:11:32,954 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-15 18:11:33,198 INFO L384 CDTParser]: Found 1 translation units. [2024-08-15 18:11:33,199 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_6+soft_float_4-3a.c.cil.c [2024-08-15 18:11:33,215 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e0319304/426af41f9bd544d68843328912b7cee5/FLAGb5721a8fd [2024-08-15 18:11:33,536 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e0319304/426af41f9bd544d68843328912b7cee5 [2024-08-15 18:11:33,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-15 18:11:33,537 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-15 18:11:33,538 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-15 18:11:33,538 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-15 18:11:33,543 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-15 18:11:33,545 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:11:31" (1/2) ... [2024-08-15 18:11:33,546 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c412573 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:33, skipping insertion in model container [2024-08-15 18:11:33,546 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:11:31" (1/2) ... [2024-08-15 18:11:33,548 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@52553550 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:33, skipping insertion in model container [2024-08-15 18:11:33,549 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:11:33" (2/2) ... [2024-08-15 18:11:33,549 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c412573 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:11:33, skipping insertion in model container [2024-08-15 18:11:33,550 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:11:33" (2/2) ... [2024-08-15 18:11:33,577 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-15 18:11:33,755 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_6+soft_float_4-3a.c.cil.c[1997,2010] [2024-08-15 18:11:33,783 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_6+soft_float_4-3a.c.cil.c[2366,2379] [2024-08-15 18:11:33,840 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:11:33,861 INFO L200 MainTranslator]: Completed pre-run [2024-08-15 18:11:33,878 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_6+soft_float_4-3a.c.cil.c[1997,2010] [2024-08-15 18:11:33,881 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_6+soft_float_4-3a.c.cil.c[2366,2379] [2024-08-15 18:11:33,910 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:11:33,931 INFO L204 MainTranslator]: Completed translation [2024-08-15 18:11:33,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:11:33 WrapperNode [2024-08-15 18:11:33,932 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-15 18:11:33,933 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-15 18:11:33,934 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-15 18:11:33,934 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-15 18:11:33,946 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:11:33" (1/1) ... [2024-08-15 18:11:33,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:11:33" (1/1) ... [2024-08-15 18:11:33,964 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:11:33" (1/1) ... [2024-08-15 18:11:33,996 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-08-15 18:11:33,997 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:11:33" (1/1) ... [2024-08-15 18:11:33,997 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:11:33" (1/1) ... [2024-08-15 18:11:34,017 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:11:33" (1/1) ... [2024-08-15 18:11:34,023 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:11:33" (1/1) ... [2024-08-15 18:11:34,025 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:11:33" (1/1) ... [2024-08-15 18:11:34,033 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-15 18:11:34,037 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-15 18:11:34,038 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-15 18:11:34,038 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-15 18:11:34,039 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:11:33" (1/1) ... [2024-08-15 18:11:34,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-15 18:11:34,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:11:34,075 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-08-15 18:11:34,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-08-15 18:11:34,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-15 18:11:34,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-15 18:11:34,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2024-08-15 18:11:34,120 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-15 18:11:34,120 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-15 18:11:34,120 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-15 18:11:34,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-15 18:11:34,121 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-08-15 18:11:34,121 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2024-08-15 18:11:34,121 INFO L138 BoogieDeclarations]: Found implementation of procedure mulflt [2024-08-15 18:11:34,121 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-15 18:11:34,121 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-15 18:11:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-15 18:11:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-15 18:11:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-15 18:11:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-15 18:11:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-15 18:11:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-15 18:11:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-15 18:11:34,123 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-15 18:11:34,123 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-15 18:11:34,123 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-15 18:11:34,124 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-15 18:11:34,124 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-15 18:11:34,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-15 18:11:34,124 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-15 18:11:34,124 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-15 18:11:34,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-15 18:11:34,124 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-08-15 18:11:34,124 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2024-08-15 18:11:34,124 INFO L130 BoogieDeclarations]: Found specification of procedure mulflt [2024-08-15 18:11:34,124 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-15 18:11:34,124 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-15 18:11:34,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-15 18:11:34,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-08-15 18:11:34,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-15 18:11:34,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2024-08-15 18:11:34,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-08-15 18:11:34,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-08-15 18:11:34,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-15 18:11:34,241 INFO L273 CfgBuilder]: Building ICFG [2024-08-15 18:11:34,244 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-15 18:11:46,942 INFO L? ?]: Removed 62 outVars from TransFormulas that were not future-live. [2024-08-15 18:11:46,942 INFO L327 CfgBuilder]: Performing block encoding [2024-08-15 18:11:46,956 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-15 18:11:46,956 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-15 18:11:46,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:11:46 BoogieIcfgContainer [2024-08-15 18:11:46,957 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-15 18:11:46,959 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-15 18:11:46,959 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-15 18:11:46,962 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-15 18:11:46,963 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:11:31" (1/4) ... [2024-08-15 18:11:46,963 WARN L100 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-15 18:11:46,965 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f6390d2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:11:46, skipping insertion in model container [2024-08-15 18:11:46,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.08 06:11:33" (2/4) ... [2024-08-15 18:11:46,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f6390d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:11:46, skipping insertion in model container [2024-08-15 18:11:46,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:11:33" (3/4) ... [2024-08-15 18:11:46,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f6390d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:11:46, skipping insertion in model container [2024-08-15 18:11:46,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:11:46" (4/4) ... [2024-08-15 18:11:46,968 INFO L128 eAbstractionObserver]: Analyzing ICFG square_6+soft_float_4-3a.c.cil.c [2024-08-15 18:11:46,988 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-15 18:11:46,988 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-15 18:11:47,012 INFO L90 WitnessUtils]: Constructing product of automaton with 91 states and violation witness of the following lengths: [25] [2024-08-15 18:11:47,239 INFO L95 WitnessUtils]: Product has 794 reachable states. [2024-08-15 18:11:47,261 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-15 18:11:47,268 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=false, 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;@4f2ff83f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-15 18:11:47,268 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-15 18:11:47,271 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1068 transitions. [2024-08-15 18:11:47,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-08-15 18:11:47,289 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:11:47,290 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 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] [2024-08-15 18:11:47,291 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [main1Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:11:47,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:11:47,296 INFO L85 PathProgramCache]: Analyzing trace with hash 782545498, now seen corresponding path program 1 times [2024-08-15 18:11:47,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-15 18:11:47,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900644294] [2024-08-15 18:11:47,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:11:47,309 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 [2024-08-15 18:11:47,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-08-15 18:11:47,313 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-08-15 18:11:47,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-08-15 18:11:47,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:11:47,421 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-15 18:11:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:11:47,503 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-08-15 18:11:47,507 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-15 18:11:47,509 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-15 18:11:47,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location main1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-15 18:11:47,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-08-15 18:11:47,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-08-15 18:11:47,717 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-15 18:11:47,721 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2024-08-15 18:11:47,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.08 06:11:47 BoogieIcfgContainer [2024-08-15 18:11:47,750 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-15 18:11:47,752 INFO L158 Benchmark]: Toolchain (without parser) took 14214.03ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 40.2MB in the beginning and 60.9MB in the end (delta: -20.7MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. [2024-08-15 18:11:47,753 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 52.4MB. Free memory was 32.7MB in the beginning and 32.6MB in the end (delta: 94.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:11:47,754 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 52.4MB. Free memory was 29.6MB in the beginning and 29.5MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:11:47,755 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.81ms. Allocated memory is still 75.5MB. Free memory was 39.9MB in the beginning and 49.6MB in the end (delta: -9.7MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2024-08-15 18:11:47,755 INFO L158 Benchmark]: Boogie Preprocessor took 103.70ms. Allocated memory is still 75.5MB. Free memory was 49.6MB in the beginning and 46.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-08-15 18:11:47,755 INFO L158 Benchmark]: IcfgBuilder took 12919.53ms. Allocated memory is still 75.5MB. Free memory was 46.5MB in the beginning and 47.0MB in the end (delta: -508.2kB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2024-08-15 18:11:47,756 INFO L158 Benchmark]: TraceAbstraction took 791.60ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 46.2MB in the beginning and 60.9MB in the end (delta: -14.7MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2024-08-15 18:11:47,758 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.15ms. Allocated memory is still 52.4MB. Free memory was 32.7MB in the beginning and 32.6MB in the end (delta: 94.1kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.17ms. Allocated memory is still 52.4MB. Free memory was 29.6MB in the beginning and 29.5MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 393.81ms. Allocated memory is still 75.5MB. Free memory was 39.9MB in the beginning and 49.6MB in the end (delta: -9.7MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 103.70ms. Allocated memory is still 75.5MB. Free memory was 49.6MB in the beginning and 46.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 12919.53ms. Allocated memory is still 75.5MB. Free memory was 46.5MB in the beginning and 47.0MB in the end (delta: -508.2kB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * TraceAbstraction took 791.60ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 46.2MB in the beginning and 60.9MB in the end (delta: -14.7MB). Peak memory consumption was 7.5MB. 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 - CounterExampleResult [Line: 60]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L309] COND FALSE !(__VERIFIER_nondet_int()) [L312] CALL main2() [L269] unsigned int a ; [L270] unsigned int ma = __VERIFIER_nondet_uint(); [L271] signed char ea = __VERIFIER_nondet_char(); [L272] unsigned int b ; [L273] unsigned int mb = __VERIFIER_nondet_uint(); [L274] signed char eb = __VERIFIER_nondet_char(); [L275] unsigned int r_add1 ; [L276] unsigned int r_add2 ; [L277] unsigned int zero ; [L278] int tmp ; [L279] int tmp___0 ; [L280] int __retres14 ; [L284] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L68] unsigned int res ; [L69] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L72] COND TRUE ! m [L73] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0] [L123] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, e=0] [L284] RET, EXPR base2flt(0, 0) [L284] zero = base2flt(0, 0) [L285] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=127, \old(m)=-2147483648] [L68] unsigned int res ; [L69] unsigned int __retres4 ; VAL [\old(e)=127, \old(m)=-2147483648, e=127, m=-2147483648] [L72] COND FALSE !(! m) VAL [\old(e)=127, \old(m)=-2147483648, e=127, m=-2147483648] [L78] COND FALSE !(m < 1U << 24U) VAL [\old(e)=127, \old(m)=-2147483648, e=127, m=-2147483648] [L100] COND TRUE 1 VAL [\old(e)=127, \old(m)=-2147483648, e=127, m=-2147483648] [L102] COND TRUE m >= 1U << 25U VAL [\old(e)=127, \old(m)=-2147483648, e=127, m=-2147483648] [L107] COND TRUE e >= 127 [L108] __retres4 = 4294967295U VAL [\old(e)=127, \old(m)=-2147483648, __retres4=-1, m=-2147483648] [L123] return (__retres4); VAL [\old(e)=127, \old(m)=-2147483648, \result=-1, m=-2147483648] [L285] RET, EXPR base2flt(ma, ea) VAL [ea=127, ma=-2147483648] [L285] a = base2flt(ma, ea) [L286] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=0, \old(m)=16777216] [L68] unsigned int res ; [L69] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L72] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L78] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L100] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L102] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L119] m = m & ~ (1U << 24U) [L120] res = m | ((unsigned int )(e + 128) << 24U) [L121] __retres4 = res VAL [\old(e)=0, \old(m)=16777216, __retres4=-2147483648] [L123] return (__retres4); VAL [\old(e)=0, \old(m)=16777216, \result=-2147483648] [L286] RET, EXPR base2flt(mb, eb) VAL [a=-1, ea=127, eb=0, ma=-2147483648, mb=16777216] [L286] b = base2flt(mb, eb) [L287] CALL addflt(a, b) VAL [\old(a)=-1, \old(b)=-2147483648] [L127] unsigned int res ; [L128] unsigned int ma ; [L129] unsigned int mb ; [L130] unsigned int delta ; [L131] int ea ; [L132] int eb ; [L133] unsigned int tmp ; [L134] unsigned int __retres10 ; VAL [\old(a)=-1, \old(b)=-2147483648, a=-1, b=-2147483648] [L137] COND FALSE !(a < b) VAL [\old(a)=-1, \old(b)=-2147483648, a=-1, b=-2147483648] [L144] COND FALSE !(! b) VAL [\old(a)=-1, \old(b)=-2147483648, a=-1, b=-2147483648] [L151] ma = a & ((1U << 24U) - 1U) [L152] ea = (int )(a >> 24U) - 128 [L153] ma = ma | (1U << 24U) [L154] mb = b & ((1U << 24U) - 1U) [L155] eb = (int )(b >> 24U) - 128 [L156] mb = mb | (1U << 24U) VAL [\old(a)=-1, \old(b)=-2147483648, a=-1, ea=127, eb=0, ma=33554431, mb=16777216] [L157] CALL __VERIFIER_assert(ea >= eb) VAL [\old(cond)=1] [L59] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L157] RET __VERIFIER_assert(ea >= eb) VAL [\old(a)=-1, \old(b)=-2147483648, a=-1, ea=127, eb=0, ma=33554431, mb=16777216] [L158] delta = ea - eb VAL [\old(a)=-1, \old(b)=-2147483648, a=-1, delta=127, ea=127, ma=33554431, mb=16777216] [L159] CALL __VERIFIER_assert(delta < sizeof(mb) * 8) VAL [\old(cond)=0] [L59] COND TRUE !(cond) VAL [\old(cond)=0] [L60] reach_error() VAL [\old(cond)=0] - UnprovableResult [Line: 48]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 112 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=794occurred 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 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 proved your program to be incorrect! [2024-08-15 18:11:47,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE