/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-benchs/inv_square-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 04:43:15,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 04:43:15,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 04:43:15,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 04:43:15,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 04:43:15,645 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 04:43:15,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 04:43:15,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 04:43:15,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 04:43:15,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 04:43:15,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 04:43:15,656 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 04:43:15,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 04:43:15,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 04:43:15,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 04:43:15,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 04:43:15,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 04:43:15,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 04:43:15,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 04:43:15,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 04:43:15,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 04:43:15,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 04:43:15,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 04:43:15,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 04:43:15,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 04:43:15,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 04:43:15,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 04:43:15,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 04:43:15,701 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 04:43:15,726 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 04:43:15,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 04:43:15,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 04:43:15,730 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 04:43:15,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 04:43:15,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 04:43:15,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 04:43:15,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 04:43:15,733 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 04:43:15,733 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 04:43:15,733 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 04:43:15,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 04:43:15,734 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 04:43:15,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 04:43:15,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 04:43:15,736 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 04:43:15,736 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 04:43:15,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 04:43:15,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 04:43:15,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 04:43:15,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 04:43:15,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 04:43:15,737 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 04:43:16,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 04:43:16,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 04:43:16,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 04:43:16,184 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 04:43:16,184 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 04:43:16,185 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/inv_square-1.c [2020-11-07 04:43:16,276 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0abd4d4c8/8bfa14298c9a4e3eb6fd1e095a104f21/FLAGba0e86466 [2020-11-07 04:43:16,891 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 04:43:16,891 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/inv_square-1.c [2020-11-07 04:43:16,900 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0abd4d4c8/8bfa14298c9a4e3eb6fd1e095a104f21/FLAGba0e86466 [2020-11-07 04:43:17,248 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0abd4d4c8/8bfa14298c9a4e3eb6fd1e095a104f21 [2020-11-07 04:43:17,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 04:43:17,266 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 04:43:17,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 04:43:17,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 04:43:17,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 04:43:17,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:43:17" (1/1) ... [2020-11-07 04:43:17,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e9234a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:17, skipping insertion in model container [2020-11-07 04:43:17,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:43:17" (1/1) ... [2020-11-07 04:43:17,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 04:43:17,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 04:43:17,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:43:17,465 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 04:43:17,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:43:17,500 INFO L208 MainTranslator]: Completed translation [2020-11-07 04:43:17,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:17 WrapperNode [2020-11-07 04:43:17,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 04:43:17,502 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 04:43:17,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 04:43:17,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 04:43:17,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:17" (1/1) ... [2020-11-07 04:43:17,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:17" (1/1) ... [2020-11-07 04:43:17,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:17" (1/1) ... [2020-11-07 04:43:17,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:17" (1/1) ... [2020-11-07 04:43:17,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:17" (1/1) ... [2020-11-07 04:43:17,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:17" (1/1) ... [2020-11-07 04:43:17,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:17" (1/1) ... [2020-11-07 04:43:17,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 04:43:17,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 04:43:17,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 04:43:17,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 04:43:17,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 04:43:17,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 04:43:17,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 04:43:17,638 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 04:43:17,638 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-11-07 04:43:17,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-07 04:43:17,639 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 04:43:17,640 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 04:43:17,640 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 04:43:17,640 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 04:43:17,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 04:43:17,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-11-07 04:43:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-11-07 04:43:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-07 04:43:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 04:43:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 04:43:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 04:43:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 04:43:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 04:43:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 04:43:17,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 04:43:18,207 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 04:43:18,207 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-07 04:43:18,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:43:18 BoogieIcfgContainer [2020-11-07 04:43:18,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 04:43:18,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 04:43:18,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 04:43:18,218 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 04:43:18,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:43:17" (1/3) ... [2020-11-07 04:43:18,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c26efe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:43:18, skipping insertion in model container [2020-11-07 04:43:18,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:17" (2/3) ... [2020-11-07 04:43:18,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c26efe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:43:18, skipping insertion in model container [2020-11-07 04:43:18,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:43:18" (3/3) ... [2020-11-07 04:43:18,222 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_square-1.c [2020-11-07 04:43:18,239 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 04:43:18,243 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 04:43:18,257 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 04:43:18,311 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 04:43:18,311 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 04:43:18,311 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 04:43:18,311 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 04:43:18,312 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 04:43:18,312 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 04:43:18,312 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 04:43:18,312 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 04:43:18,333 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-11-07 04:43:18,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-07 04:43:18,349 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:43:18,351 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-07 04:43:18,351 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:43:18,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:43:18,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1895368507, now seen corresponding path program 1 times [2020-11-07 04:43:18,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:43:18,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1611663788] [2020-11-07 04:43:18,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:43:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:43:18,579 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:43:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:43:18,651 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:43:18,685 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 04:43:18,686 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 04:43:18,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 04:43:18,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:43:18 BoogieIcfgContainer [2020-11-07 04:43:18,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 04:43:18,731 INFO L168 Benchmark]: Toolchain (without parser) took 1470.13 ms. Allocated memory is still 151.0 MB. Free memory was 128.4 MB in the beginning and 124.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.7 MB. Max. memory is 8.0 GB. [2020-11-07 04:43:18,732 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 125.6 MB in the end (delta: 82.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 04:43:18,733 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.85 ms. Allocated memory is still 151.0 MB. Free memory was 127.8 MB in the beginning and 118.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-11-07 04:43:18,734 INFO L168 Benchmark]: Boogie Preprocessor took 37.19 ms. Allocated memory is still 151.0 MB. Free memory was 118.1 MB in the beginning and 116.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-07 04:43:18,735 INFO L168 Benchmark]: RCFGBuilder took 671.85 ms. Allocated memory is still 151.0 MB. Free memory was 116.6 MB in the beginning and 102.7 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-11-07 04:43:18,736 INFO L168 Benchmark]: TraceAbstraction took 513.29 ms. Allocated memory is still 151.0 MB. Free memory was 102.2 MB in the beginning and 124.1 MB in the end (delta: -21.9 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 04:43:18,741 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 125.6 MB in the end (delta: 82.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 231.85 ms. Allocated memory is still 151.0 MB. Free memory was 127.8 MB in the beginning and 118.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.19 ms. Allocated memory is still 151.0 MB. Free memory was 118.1 MB in the beginning and 116.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 671.85 ms. Allocated memory is still 151.0 MB. Free memory was 116.6 MB in the beginning and 102.7 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 513.29 ms. Allocated memory is still 151.0 MB. Free memory was 102.2 MB in the beginning and 124.1 MB in the end (delta: -21.9 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 24, overapproximation of someBinaryArithmeticFLOAToperation at line 23. Possible FailurePath: [L17] float x, y, z; [L19] x = __VERIFIER_nondet_float() VAL [__VERIFIER_nondet_float()=57, x=57] [L20] CALL assume_abort_if_not(x >= -1.f && x <= 1.f) VAL [\old(cond)=1] [L11] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L20] RET assume_abort_if_not(x >= -1.f && x <= 1.f) VAL [x=57] [L22] COND TRUE x != 0.f VAL [x=57] [L23] y = x * x VAL [x=57] [L24] CALL __VERIFIER_assert(y != 0.f) VAL [\old(cond)=0] [L13] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L13] CALL reach_error() [L3] __assert_fail("0", "inv_square-1.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=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, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...