/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/array-lopstr16/flag_loopdep.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 02:19:42,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 02:19:42,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 02:19:43,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 02:19:43,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 02:19:43,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 02:19:43,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 02:19:43,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 02:19:43,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 02:19:43,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 02:19:43,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 02:19:43,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 02:19:43,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 02:19:43,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 02:19:43,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 02:19:43,134 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 02:19:43,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 02:19:43,158 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 02:19:43,159 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 02:19:43,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 02:19:43,161 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 02:19:43,185 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 02:19:43,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 02:19:43,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 02:19:43,190 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 02:19:43,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 02:19:43,190 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 02:19:43,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 02:19:43,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 02:19:43,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 02:19:43,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 02:19:43,192 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 02:19:43,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 02:19:43,193 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 02:19:43,193 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 02:19:43,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 02:19:43,194 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 02:19:43,194 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 02:19:43,194 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 02:19:43,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:19:43,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 02:19:43,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 02:19:43,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 02:19:43,196 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 02:19:43,196 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 02:19:43,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 02:19:43,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 02:19:43,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 02:19:43,651 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 02:19:43,652 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 02:19:43,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-lopstr16/flag_loopdep.i [2021-02-22 02:19:43,727 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f060bc157/e3ea5bad21c84c72b1c11b100191b71f/FLAG5a71ac17c [2021-02-22 02:19:44,362 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 02:19:44,362 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-lopstr16/flag_loopdep.i [2021-02-22 02:19:44,371 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f060bc157/e3ea5bad21c84c72b1c11b100191b71f/FLAG5a71ac17c [2021-02-22 02:19:44,694 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f060bc157/e3ea5bad21c84c72b1c11b100191b71f [2021-02-22 02:19:44,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 02:19:44,711 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 02:19:44,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 02:19:44,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 02:19:44,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 02:19:44,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:19:44" (1/1) ... [2021-02-22 02:19:44,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c27e14e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:19:44, skipping insertion in model container [2021-02-22 02:19:44,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:19:44" (1/1) ... [2021-02-22 02:19:44,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 02:19:44,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 02:19:44,897 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-lopstr16/flag_loopdep.i[805,818] [2021-02-22 02:19:44,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:19:44,930 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 02:19:44,945 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-lopstr16/flag_loopdep.i[805,818] [2021-02-22 02:19:44,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:19:44,973 INFO L208 MainTranslator]: Completed translation [2021-02-22 02:19:44,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:19:44 WrapperNode [2021-02-22 02:19:44,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 02:19:44,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 02:19:44,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 02:19:44,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 02:19:44,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:19:44" (1/1) ... [2021-02-22 02:19:44,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:19:44" (1/1) ... [2021-02-22 02:19:45,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:19:44" (1/1) ... [2021-02-22 02:19:45,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:19:44" (1/1) ... [2021-02-22 02:19:45,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:19:44" (1/1) ... [2021-02-22 02:19:45,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:19:44" (1/1) ... [2021-02-22 02:19:45,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:19:44" (1/1) ... [2021-02-22 02:19:45,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 02:19:45,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 02:19:45,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 02:19:45,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 02:19:45,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:19:44" (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 [2021-02-22 02:19:45,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 02:19:45,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 02:19:45,142 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 02:19:45,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-22 02:19:45,142 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2021-02-22 02:19:45,142 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 02:19:45,143 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 02:19:45,143 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 02:19:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-22 02:19:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-22 02:19:45,145 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 02:19:45,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 02:19:45,145 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-22 02:19:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-22 02:19:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_pointer [2021-02-22 02:19:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure init [2021-02-22 02:19:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-22 02:19:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-22 02:19:45,148 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 02:19:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-22 02:19:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 02:19:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 02:19:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 02:19:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 02:19:45,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 02:19:45,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 02:19:45,759 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 02:19:45,760 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-02-22 02:19:45,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:19:45 BoogieIcfgContainer [2021-02-22 02:19:45,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 02:19:45,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 02:19:45,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 02:19:45,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 02:19:45,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:19:44" (1/3) ... [2021-02-22 02:19:45,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57b64b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:19:45, skipping insertion in model container [2021-02-22 02:19:45,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:19:44" (2/3) ... [2021-02-22 02:19:45,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57b64b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:19:45, skipping insertion in model container [2021-02-22 02:19:45,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:19:45" (3/3) ... [2021-02-22 02:19:45,772 INFO L111 eAbstractionObserver]: Analyzing ICFG flag_loopdep.i [2021-02-22 02:19:45,779 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 02:19:45,784 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 02:19:45,805 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 02:19:45,832 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 02:19:45,833 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 02:19:45,833 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 02:19:45,833 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 02:19:45,833 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 02:19:45,834 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 02:19:45,834 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 02:19:45,834 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 02:19:45,852 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2021-02-22 02:19:45,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-22 02:19:45,863 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:19:45,864 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, 1, 1, 1, 1] [2021-02-22 02:19:45,865 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:19:45,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:19:45,872 INFO L82 PathProgramCache]: Analyzing trace with hash -351077520, now seen corresponding path program 1 times [2021-02-22 02:19:45,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:19:45,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [793241244] [2021-02-22 02:19:45,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:19:45,972 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:19:46,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:19:46,126 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:19:46,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:19:46,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:19:46,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:19:46,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:19:46,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:19:46,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:19:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:19:46,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:19:46,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:19:46,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-22 02:19:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:19:46,269 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:19:46,270 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:19:46,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:19:46,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [793241244] [2021-02-22 02:19:46,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:19:46,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-22 02:19:46,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433661658] [2021-02-22 02:19:46,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-22 02:19:46,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:19:46,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-22 02:19:46,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-22 02:19:46,306 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 5 states. [2021-02-22 02:19:46,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:19:46,847 INFO L93 Difference]: Finished difference Result 114 states and 139 transitions. [2021-02-22 02:19:46,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 02:19:46,850 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2021-02-22 02:19:46,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:19:46,862 INFO L225 Difference]: With dead ends: 114 [2021-02-22 02:19:46,862 INFO L226 Difference]: Without dead ends: 72 [2021-02-22 02:19:46,866 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-22 02:19:46,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-02-22 02:19:46,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 54. [2021-02-22 02:19:46,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2021-02-22 02:19:46,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2021-02-22 02:19:46,928 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 33 [2021-02-22 02:19:46,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:19:46,929 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2021-02-22 02:19:46,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-22 02:19:46,929 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2021-02-22 02:19:46,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-02-22 02:19:46,931 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:19:46,931 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:19:46,932 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 02:19:46,932 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:19:46,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:19:46,947 INFO L82 PathProgramCache]: Analyzing trace with hash -878173048, now seen corresponding path program 1 times [2021-02-22 02:19:46,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:19:46,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [190621652] [2021-02-22 02:19:46,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:19:46,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:19:47,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-22 02:19:47,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:19:47,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-22 02:19:47,041 WARN L141 QuantifierPusher]: treesize reduction 4, result has 87.5 percent of original size [2021-02-22 02:19:47,057 INFO L723 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2021-02-22 02:19:47,063 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:19:47,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:19:47,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:19:47,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-02-22 02:19:47,078 WARN L147 QuantifierPusher]: treesize reduction 4, result has 87.5 percent of original size 28 [2021-02-22 02:19:47,086 WARN L141 QuantifierPusher]: treesize reduction 23, result has 66.2 percent of original size [2021-02-22 02:19:47,089 WARN L147 QuantifierPusher]: treesize reduction 23, result has 66.2 percent of original size 45 [2021-02-22 02:19:47,090 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-02-22 02:19:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:19:47,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:19:47,164 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:19:47,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:19:47,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:19:47,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:19:47,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:19:47,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:19:47,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:19:47,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-22 02:19:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:19:47,266 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:19:47,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:19:47,269 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-22 02:19:47,270 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-22 02:19:47,288 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-22 02:19:47,290 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-22 02:19:47,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:19:47,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:19:47,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:19:47,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:19:47,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:19:47,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [190621652] [2021-02-22 02:19:47,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:19:47,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-22 02:19:47,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282734619] [2021-02-22 02:19:47,347 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-22 02:19:47,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:19:47,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-22 02:19:47,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-22 02:19:47,349 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand 7 states. [2021-02-22 02:19:47,800 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-02-22 02:19:47,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:19:47,998 INFO L93 Difference]: Finished difference Result 87 states and 95 transitions. [2021-02-22 02:19:47,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-22 02:19:47,999 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2021-02-22 02:19:48,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:19:48,001 INFO L225 Difference]: With dead ends: 87 [2021-02-22 02:19:48,001 INFO L226 Difference]: Without dead ends: 59 [2021-02-22 02:19:48,004 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-02-22 02:19:48,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-02-22 02:19:48,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 55. [2021-02-22 02:19:48,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2021-02-22 02:19:48,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2021-02-22 02:19:48,019 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 40 [2021-02-22 02:19:48,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:19:48,019 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2021-02-22 02:19:48,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-22 02:19:48,020 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2021-02-22 02:19:48,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-02-22 02:19:48,022 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:19:48,022 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:19:48,022 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 02:19:48,023 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:19:48,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:19:48,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1405437972, now seen corresponding path program 1 times [2021-02-22 02:19:48,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:19:48,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [670249291] [2021-02-22 02:19:48,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:19:48,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:19:48,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:19:48,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:19:48,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 02:19:48,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:19:48,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:19:48,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-22 02:19:48,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-02-22 02:19:48,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:19:48,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:19:48,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:19:48,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:19:48,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:19:48,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:19:48,096 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-22 02:19:48,111 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:19:48,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:19:48,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:19:48,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:19:48,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-22 02:19:48,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-22 02:19:48,120 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-22 02:19:48,121 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:15 [2021-02-22 02:19:48,123 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: cannot bring into simultaneous update form, |v_init_#t~malloc4.base_3| has two outvars in equality [(= |v_init_#t~malloc4.offset_3| 0), (= (store |v_#valid_20| |v_init_#t~malloc4.base_3| 1) |v_#valid_19|), (= (select |v_#valid_20| |v_init_#t~malloc4.base_3|) 0), (= |v_#length_15| (store |v_#length_16| |v_init_#t~malloc4.base_3| 4)), (< v_init_~i~0_9 v_init_~size_4), (< |v_init_#t~malloc4.base_3| |v_#StackHeapBarrier_6|), (= (store |v_#memory_$Pointer$.offset_13| v_init_~a.base_3 (store (select |v_#memory_$Pointer$.offset_13| v_init_~a.base_3) (+ v_init_~a.offset_3 (* v_init_~i~0_9 4)) |v_init_#t~malloc4.offset_3|)) |v_#memory_$Pointer$.offset_12|), (= (store |v_#memory_$Pointer$.base_13| v_init_~a.base_3 (store (select |v_#memory_$Pointer$.base_13| v_init_~a.base_3) (+ v_init_~a.offset_3 (* v_init_~i~0_9 4)) |v_init_#t~malloc4.base_3|)) |v_#memory_$Pointer$.base_12|), (= (store |v_#memory_int_10| v_init_~a.base_3 (let ((.cse0 (+ v_init_~a.offset_3 (* v_init_~i~0_9 4)))) (store (select |v_#memory_int_10| v_init_~a.base_3) .cse0 (select (select |v_#memory_int_9| v_init_~a.base_3) .cse0)))) |v_#memory_int_9|), (< |v_init_#t~malloc4.base_3| 0), (= (+ v_init_~i~0_9 1) v_init_~i~0_8)] at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.SimultaneousUpdate.computeSubstitutionMapping(SimultaneousUpdate.java:174) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.SimultaneousUpdate.extractUpdateRhs(SimultaneousUpdate.java:154) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.SimultaneousUpdate.(SimultaneousUpdate.java:104) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.werner.LoopAcceleratorLite.calculateSymbolicMemory(LoopAcceleratorLite.java:167) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.werner.LoopAcceleratorLite.summarizeLoop(LoopAcceleratorLite.java:105) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorWernerOverapprox.accelerateLoop(AcceleratorWernerOverapprox.java:52) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:183) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:62) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-02-22 02:19:48,127 INFO L168 Benchmark]: Toolchain (without parser) took 3427.27 ms. Allocated memory is still 152.0 MB. Free memory was 128.5 MB in the beginning and 53.0 MB in the end (delta: 75.5 MB). Peak memory consumption was 76.1 MB. Max. memory is 8.0 GB. [2021-02-22 02:19:48,128 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 152.0 MB. Free memory was 125.8 MB in the beginning and 125.8 MB in the end (delta: 1.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 02:19:48,129 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.61 ms. Allocated memory is still 152.0 MB. Free memory was 127.3 MB in the beginning and 117.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-22 02:19:48,130 INFO L168 Benchmark]: Boogie Preprocessor took 46.84 ms. Allocated memory is still 152.0 MB. Free memory was 117.4 MB in the beginning and 115.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-22 02:19:48,130 INFO L168 Benchmark]: RCFGBuilder took 739.21 ms. Allocated memory is still 152.0 MB. Free memory was 115.6 MB in the beginning and 128.2 MB in the end (delta: -12.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-02-22 02:19:48,131 INFO L168 Benchmark]: TraceAbstraction took 2361.85 ms. Allocated memory is still 152.0 MB. Free memory was 128.2 MB in the beginning and 53.0 MB in the end (delta: 75.1 MB). Peak memory consumption was 76.2 MB. Max. memory is 8.0 GB. [2021-02-22 02:19:48,135 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 152.0 MB. Free memory was 125.8 MB in the beginning and 125.8 MB in the end (delta: 1.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 261.61 ms. Allocated memory is still 152.0 MB. Free memory was 127.3 MB in the beginning and 117.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 46.84 ms. Allocated memory is still 152.0 MB. Free memory was 117.4 MB in the beginning and 115.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 739.21 ms. Allocated memory is still 152.0 MB. Free memory was 115.6 MB in the beginning and 128.2 MB in the end (delta: -12.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2361.85 ms. Allocated memory is still 152.0 MB. Free memory was 128.2 MB in the beginning and 53.0 MB in the end (delta: 75.1 MB). Peak memory consumption was 76.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalArgumentException: cannot bring into simultaneous update form, |v_init_#t~malloc4.base_3| has two outvars in equality [(= |v_init_#t~malloc4.offset_3| 0), (= (store |v_#valid_20| |v_init_#t~malloc4.base_3| 1) |v_#valid_19|), (= (select |v_#valid_20| |v_init_#t~malloc4.base_3|) 0), (= |v_#length_15| (store |v_#length_16| |v_init_#t~malloc4.base_3| 4)), (< v_init_~i~0_9 v_init_~size_4), (< |v_init_#t~malloc4.base_3| |v_#StackHeapBarrier_6|), (= (store |v_#memory_$Pointer$.offset_13| v_init_~a.base_3 (store (select |v_#memory_$Pointer$.offset_13| v_init_~a.base_3) (+ v_init_~a.offset_3 (* v_init_~i~0_9 4)) |v_init_#t~malloc4.offset_3|)) |v_#memory_$Pointer$.offset_12|), (= (store |v_#memory_$Pointer$.base_13| v_init_~a.base_3 (store (select |v_#memory_$Pointer$.base_13| v_init_~a.base_3) (+ v_init_~a.offset_3 (* v_init_~i~0_9 4)) |v_init_#t~malloc4.base_3|)) |v_#memory_$Pointer$.base_12|), (= (store |v_#memory_int_10| v_init_~a.base_3 (let ((.cse0 (+ v_init_~a.offset_3 (* v_init_~i~0_9 4)))) (store (select |v_#memory_int_10| v_init_~a.base_3) .cse0 (select (select |v_#memory_int_9| v_init_~a.base_3) .cse0)))) |v_#memory_int_9|), (< |v_init_#t~malloc4.base_3| 0), (= (+ v_init_~i~0_9 1) v_init_~i~0_8)] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: cannot bring into simultaneous update form, |v_init_#t~malloc4.base_3| has two outvars in equality [(= |v_init_#t~malloc4.offset_3| 0), (= (store |v_#valid_20| |v_init_#t~malloc4.base_3| 1) |v_#valid_19|), (= (select |v_#valid_20| |v_init_#t~malloc4.base_3|) 0), (= |v_#length_15| (store |v_#length_16| |v_init_#t~malloc4.base_3| 4)), (< v_init_~i~0_9 v_init_~size_4), (< |v_init_#t~malloc4.base_3| |v_#StackHeapBarrier_6|), (= (store |v_#memory_$Pointer$.offset_13| v_init_~a.base_3 (store (select |v_#memory_$Pointer$.offset_13| v_init_~a.base_3) (+ v_init_~a.offset_3 (* v_init_~i~0_9 4)) |v_init_#t~malloc4.offset_3|)) |v_#memory_$Pointer$.offset_12|), (= (store |v_#memory_$Pointer$.base_13| v_init_~a.base_3 (store (select |v_#memory_$Pointer$.base_13| v_init_~a.base_3) (+ v_init_~a.offset_3 (* v_init_~i~0_9 4)) |v_init_#t~malloc4.base_3|)) |v_#memory_$Pointer$.base_12|), (= (store |v_#memory_int_10| v_init_~a.base_3 (let ((.cse0 (+ v_init_~a.offset_3 (* v_init_~i~0_9 4)))) (store (select |v_#memory_int_10| v_init_~a.base_3) .cse0 (select (select |v_#memory_int_9| v_init_~a.base_3) .cse0)))) |v_#memory_int_9|), (< |v_init_#t~malloc4.base_3| 0), (= (+ v_init_~i~0_9 1) v_init_~i~0_8)]: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.SimultaneousUpdate.computeSubstitutionMapping(SimultaneousUpdate.java:174) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...